Case in where clause oracle. Aug 7, 2013 · SELECT * FROM dbo.
Case in where clause oracle. Thank you! Interested in getting your voice heard by members of the Developer Marketing team at Oracle? Check out this post for AppDev or this post for AI focus group Dec 14, 2007 · These changes document Community specific rules and Oracle’s content moderation practices including use of automated tools, appeals process, and Oracle’s contact details. Sep 1, 2017 · I wrote this oracle procedure to return a rows of data. Jan 21, 2017 · In this case (if it's really DATE data type) the where condition should be. Aug 7, 2018 · CASE <expression> WHEN <comparison expression> THEN <return expression> … or. SOME_TYPE NOT LIKE 'NOTHING%') Share For example, you can use the CASE expression in statements such as SELECT, UPDATE, or DELETE, and in clauses like SELECT, WHERE, HAVING, and ORDDER BY. select * from Users where Regexp_Like (User_Name, 'karl|anders|leif','i') This will be executed as a full table scan - just as the LIKE or solution, so the performance will be really bad if the table is not small. 4. I have written the following query and in this condition i can't use in clasue. Moreover, your query would have never returned rows with department - "Accounts or Unknown" because of the filter Department="SALES" Try below instead, that will be easy to be fetched by Engine : May 16, 2017 · Never forget that in Oracle SQL the '' literal (empty string) is the same as NULL, hence your predicate e. Barbaros Özhan. Or you can slap the case expression directly in the where clause, like so: Try writing the where clause this way: WHERE (T2. Your continued use of Oracle Communities Apr 28, 2019 · I'm trying to create a CASE STATEMENT in SQL (Oracle) where I need to select only single rows in addition to other criteria. user580970 Mar 11 2010 — edited Mar 11 2010. Feb 9, 2024 · Oracle - Case in where clause. The examples below will show how this is done. col1 then select from A1 and B1 and if not select from A1 and C1 Thanks Mar 15, 2021 · Is it possible to use a SELECT statement within case For ex, SELECT CASE WHEN A1. The syntax of the Oracle IN operator that determines whether an expression matches a list of values is as Dec 14, 2020 · oracle; case; where-clause; Share. SOME_TYPE LIKE 'NOTHING%') OR (T2. – jarlh. You can express this as simple conditions. ex: select * from table WHERE 1 = CASE WHEN channel = 1 AND REGEXP_LIKE Mar 10, 2013 · But, there are no other criteria in the WHERE clause so, with a case-insensitive index on (lastname, firstname), the best you could hope for from the statement you posted is a Full Fast Scan on the index. If someone says adding a CASE expression to a JOIN clause is a bad practice, ask them to explain why. Thank you! Interested in getting your voice heard by members of the Developer Marketing team at Oracle? Check out this post for AppDev or this post for AI focus group Jan 7, 2014 · i am having an issue in the where clause of this select. There is a major, major difference between using a CASE expression and boolean expressions in the WHERE clause. My answer runs far afield of that, and gives an explanation as to why Oracle is balking at OP query (finding a condition where it expects a value and a value where it expects a condition. Instead, you need to create logical groupings of OR/AND to combine the BETWEEN with the other matching condition from your case. Create Procedure( aSRCHLOGI Jan 17, 2020 · Hello Tom Is it possible to change the where condition (using case statement) based on certain variable? For example var T varchar2(1) exec :T := 'E'; var E number; exec :E := 7788; var N varchar2(20) exec :N := 'MILLER'; select empno, ename from emp where -- how to use case statement to vary the condition based on :T -- if :T = 'E' then the condition should be where empno = :E -- and if :T Feb 6, 2012 · Oracle CASE in WHERE clause. oracle where clause with case when. Date format in where clause-Oracle. 7 WHEN 'D+' THEN 1. Sql Fiddle DEMO. ColumnName != '' is equivalent to e. My query has a CASE statement within the WHERE clause that takes a Aug 17, 2010 · Hi All, I'm on oracle 10gr2. One of the advantages of this approach is that Oracle doesn't need to hard parse the query again and again. LIBRARYTRANSID THEN 1 when LBT. This is because CASE is designed to return a value, rather than to dynamically construct the SQL inside it. As your answer (correctly) points out, OP doesn't need a CASE expression in the WHERE clause. Aug 7, 2022 · THEN pairs meet this condition, and an ELSE clause exists, then Oracle returns else_expr. column3 from Table a, (Select distinct b. Aug 13, 2021 · In a simple oracle case statement, Oracle search starts with the first WHEN . column1 = b. state_cd in (:stateCode)) then 1 else 0) end = 1; Alternatively, remove the case entirely: where (:stateCode = '') or ((:stateCode != '') and vw. If none of the conditions are true, it returns the value of the ELSE clause. In your case, I think the clearest code is if you just rewrite it a bit: Feb 21, 2019 · You can use a CASE Statement anywhere a valid expression is used within the SELECT statement such as the WHERE clause’s filter criteria. I knew that we can use case in a select statement. Jul 19, 2011 · I need to modify the WHERE clause criteria based on a value input by the user. insert_date Aug 1, 2011 · Here's my queries, they don't work but I want to do something like this : SELECT a_field FROM a_table WHERE AND CASE WHEN a_value_from_another_query IS NULL THEN a_second_field IS NULL ELSE Introduction to Oracle IN operator. type_id = 27) end But I am getting the following error: ORA-00907: missing right parenthesis. Each WHEN clause may contain a comparison condition and the right-hand side of the formula. Dec 12, 2013 · For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle. BusinessId) THEN @AreaId ELSE AreaId END) AND AreaId IN (SELECT [@Areas]. So, in the first usage, I check the value of status_flag, returning 'A', 'T' or null depending on what it's value is, and compare that to t. COURSE_SCHEDULED_ID WHEN IS NULL THEN which will throw "ORA-00936: missing expression" because IS NULL is a condition, not a value or expression. Jul 7, 2010 · CASE is a statement and DECODE is a function We can use the CASE in the where clause and can not use the DECODE in the where clause. You can look to the case as a value, so you have to put an operator between the case and the other operand. Commented Dec 20, Case on where clause ORACLE. IssuedTo='BO' AND LBT. The below is my sample query: 1 SELECT * FROM dual 2 Jun 26, 2023 · The CASE statement in the WHERE clause can conditionally filter rows based on defined criteria. The syntax for the CASE statement in the WHERE clause is shown below. THEN pair meet this condition, and an ELSE clause exists, then Oracle returns {else expression}. e OTH). GRP_ID = CASE ? WHEN 0 THEN A. I wrote a simple CTE that obtains as input either a Y or N from the user. 7k 11 11 gold badges 35 35 silver badges 61 61 bronze badges. Always use proper, explicit join syntax. id = b. Create Procedure( aSRCHLOGI Feb 26, 2016 · The problem is that Oracle evaluates the SELECT after the WHERE clause. Jun 16, 2011 · If each case only allows one column, then you probably need two cases: select col1,col2, case when col3='E01089001' then (select 1 from dual) else (select 2 from dual) end, case when col3='E01089001' then (select 3 from dual) else (select 4 from dual) end from Table1 where col1='A0529'; This Oracle WHERE clause example uses the WHERE clause to define multiple conditions, but it combines the AND condition and the OR condition. In that blog, we employed the Case Statement as most DBAs and developers do, in the SELECT clause. See you below SELECT * FROM tabela WHERE coluna IN (CASE WHEN 1 = : Oracle - Clause where in case when. May 17, 2023 · You can use a CASE expression in almost any part of a SQL statement, including the WHERE and JOIN. SELECT * FROM mytable WHERE CASE WHEN desc1 = 'desc1' THEN status_code IN (240,242) WHEN desc1 = 'desc2' THEN status_code IN (240,245) END ORDER BY desc1 OUTPUT Apr 1, 2021 · Most applications store a wide variety of text such as names, addresses, and descriptions. Sep 10, 2021 · The CASE statement returns a "column value" that cannot be evaluated as a WHERE CONDITION itsef, but you can use it as a value 1 or 3 depending on sysdate, and then use this value in the filter condition: Jan 29, 2014 · According to Oracle's documentation linked to in the answer, "To write a query that performs an outer join of tables A and B and returns all rows from A (a left outer join), use the LEFT [OUTER] JOIN syntax in the FROM clause, or apply the outer join operator (+) to all columns of B in the join condition in the WHERE clause. THEN pair whether the comparison expression is equal to the expression or column or not and if so, case statement will return {return expression}. dimension) end as total_dimension, d. Learn more Explore Teams May 22, 2021 · Yes. CASE Expressions And Statements in Oracle. 0. Aug 4, 2024 · In this query, we use the CHOOSE(CASE-END, 1, 0, 0, 0) function to select the second argument 1 when the CASE statement returns 1. Sep 24, 2015 · The ordered_predicates hint is specified in the Oracle WHERE clause of a query and is used to specify the order in which Boolean predicates should be evaluated. I need to check a value from a parameter, and depending on it, apply the right clause. Apr 17, 2016 · Example (from here):. TUESDAY_YN = 1 then insert next 3 tuesdays, etc. – Jeffrey Kemp Oracle Database 23c extended CASE expressions in PL/SQL to support dangling predicates in simple CASE expression. Both formats support an optional ELSE clause. Jul 22, 2021 · As well as if it is possible to nest a CASE-statement into the WHERE clause? Here is the logic of m SQL statements: I have seen some related topics, but they were not helpful. The result of the to_date() function is a date with the time set to 00:00:00 and thus it probably doesn't match any rows in the table. 1. As you're checking whether the result of the case statement is the same as the ELSE clause then the statement is the same as the opposite of all other conditions. To learn more about WHERE, check out our article SQL WHERE – Guide and Examples Jul 26, 2020 · Oracle case inside where clause. Oracle: Using Case Statement in Where Clause. Thank you! Interested in getting your voice heard by members of the Developer Marketing team at Oracle? Check out this post for AppDev or this post for AI focus group Aug 6, 2013 · I have to write a query which have dynamic where clause. SELECT * FROM TABLE1 WHERE P1 IS NULL OR COL1 IN (SELECT ID FROM TABLE2); In general, the CASE/WHEN/END clause can be used only in the "projection" part of a SELECT; you need to use the "regular" boolean expressions In the WHERE clause. Case will not conditionally chose the evaluated code. COLUMN4 Oct 20, 2013 · The CASE statement is evaluated in order, so if any "case" is true then every case after it is ignored. COL1, C1. The WHERE Conditional clause in the Oracle database is an optional clause used in SQL statements. Dynamic Column on SQL doesn't work (APEX,Interactive Report) Hot Network Questions May 25, 2009 · I need help in a query using case statements in where clause. 7 WHEN 'F' THEN 0 ELSE May 5, 2015 · If you want to use case, then you need to return a value and do a comparison: (CASE order_date > sysdate and fee_rate_type in ('REGULAR', 'BONUS') then 1 order_date <= sysdate and FEE_RATE_TYPE in ('REGULAR') then 1 END) = 1 However, I would encourage you not to use case in a where clause. Jun 16, 2014 · Oracle case inside where clause. Then filter it in the outer query. SELECT * FROM a, b WHERE a. PL/SQL Using CASE in WHERE clause. ACCOUNT = 545 AND A. 0). COL1, B1. depending on one of the input parameter. You can write the where clause as: where (case when (:stateCode = '') then (1) when (:stateCode != '') and (vw. LIBRARYTRANSID=LIB. If the @UserRole variable value = 'Analyst', then the SupervisorApprovedBy column value must be NULL. Case expression in where clause PL/SQL. Sep 9, 2011 · I have a standard search clause whereby I'm selecting records on certain filters such as description and status, the status values being 101 to 110. Rate)AS MaximumRate FROM HumanResources. * ,D. create or replace force view v_documents_list ( id_doc, attachments_count, total_dimension, insert_date, id_state, state, id_institute, institute, hasjob ) as select d. The Oracle documentation is here. However, this isn't an absolute rule. The CASE statement can be used in Oracle/PLSQL. id_doc, count (f. For older versions use: SELECT * FROM ( SELECT * FROM t_config_rule WHERE rule = 'IND' OR rule IS NULL ORDER BY rule NULLS LAST ) WHERE ROWNUM = 1; or number the rows with ROW_NUMBER and keep the first row: SELECT * FROM ( SELECT r. The CASE statement is appropriate when there is some different action to be taken for each alternative. Employee AS e JOIN HumanResources. I want to use the CASE construct after a WHERE clause to build an expression. Apr 7, 2010 · Depending on which side of the "=" the "(+) is on, it denotes a LEFT OUTER or a RIGHT OUTER join (in this case, it's a left outer join). The data in the column will be stored in its specific case, but you can change your session's case-sensitivity for matching. Does anybody have any idea what the correct syntax should be like? A REGEXP_LIKE will do a case-insensitive regexp search. * ,(CASE WHEN (A. Dec 20, 2019 · It's generally better to use AND/OR constructions instead of case expressions in the WHERE clause. for example. Can I Use DECODE Instead Of CASE? Oracle has a function called DECODE, which lets you check an expression and return Dec 3, 2014 · You just need to make both comparisons in the same case statement: and dep_dt = case when to_char( SysDate, 'D' ) <> '2' and dep_dt <= SysDate then dep_dt else SysDate end Oct 9, 2013 · select * from Tran_LibraryBooksTrans LBT left join Tran_LibraryIssuedBooks LIB ON case WHEN LBT. Some databases do, but not Oracle. I'm trying to do it this way: SELECT A. This example would return all suppliers that reside in the state of Florida and whose supplier_name is IBM as well as all suppliers whose supplier_id is greater than 5000. Given the example, the CASE expression performed better in this tutorial than the UNION ALL. The query has case construction in where clause. column2 is not null then a. emp WHERE (CASE WHEN job = 'MANAGER' THEN '1' WHEN job = 'CLERK' THEN '2' ELSE '0' END) IN (1, 2) Nov 2, 2023 · Oracle EBS-Forms: How to know query behind LOV Nov 21, 2023 Dec 2, 2020 · Basically it's good to know how to use a CASE Expression in a WHERE Clause as there are some cases when the ONLY way to evaluate certain data is by using a CASE Expression . However, my CASE expression needs to check if a field IS NULL. MONDAY_YN = 1 then insert the next 3 mondays, if r. COL1 ELSE SELECT A1. The advantage would be that you can change the data in the table easier than changing all of the queries that have that case statement. USE AdventureWorks2008R2; GO SELECT JobTitle, MAX(ph1. Adrian's article is quite helpful. COL1 THEN SELECT A1. Note: same CASE statement is used in PL/SQL blocks. you can do it differently like this : Apr 24, 2007 · Case construct with WHERE clause Hi Tom, I have a question and I don't know if this is possible or if i'm jsut doing something wrong because i get multiple errors like missing right paren, or missing keyword. These work like regular simple CASE expressions - you have a single selector. A subquery is a query nested within another query, you will learn about the subquery in the subquery tutorial. COLUMN4) THEN 1 ELSE 0 END) AS COLUMN8 FROM TOTAL1 A FULL OUTER JOIN TOTAL2 D ON A. Best not to use it though, for readability's sake. Sep 29, 2010 · I want to use Case statement in where clause for Example Select a. Jun 28, 2024 · The SEARCHED CASE statement is similar to the CASE statement, rather than using the selector to select the alternative, SEARCHED CASE will directly have the expression defined in the WHEN clause. Actually I am passing a value in a procedure according to the value i have to select fields in where clause. 3. To match these requirements I tried to make use of the SELECT CASE WHEN clause in the SQL statement as follows: Jul 2, 2014 · "Declarative" was intended with respect to the physical access to the data (the "pointer chasing" that was so prevalent before the RM). com. where sale. IssuedTo='SN' AND LBT. It extracts only those records that fulfill the specified condition. There, it may be utilized to alter the data fetched by a query based on a condition. accounting_dt i have added case but it is throwing exception. For example, the Olympic data set stores athlete names in this format: FAMILY NAME, Given Names To find all the people who have Barry for any of their names, you can upper (or lower) case the column and search string: Jun 8, 2015 · You can use a case: SELECT (columns list) FROM AGREEMENT A WHERE A. – Mar 24, 2011 · the SQL statement is not written correct. EmployeePayHistory AS ph1 ON e. Aug 7, 2013 · SELECT * FROM dbo. Jun 8, 2016 · Good day Stackoverflow! I have a query that is giving me an error: "Missing Right Parenthesis", at least, so says SQL Developer. state_cd in (:stateCode)); Or, even better: Dec 7, 2023 · How to use CASE in the WHERE clause. Oracle date comparison in where clause. case when Dec 4, 2013 · For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle. Second problem is that you are trying output a boolean value from your CASE. You should look up the CASE construct. Oct 13, 2010 · For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle. You could use the CASE statement in a SQL statement as follows: (includes the expression clause). CompanyMaster WHERE AreaId= (CASE WHEN EXISTS (SELECT BusinessId FROM dbo. 6 database. Use table aliases that are abbreviations for the table names. In you first version you have. Otherwise, Oracle returns null. In addition: Don't use commas in the from clause. Dec 30, 2008 · This is one of the rare cases where you need a hint, else Oracle will not use the index on column id. Oracle with CASE Statement in WHERE clause. If you just need to choose among several values to assign to a variable, you can code an assignment statement using a CASE expression instead. Oct 20, 2016 · You need do to the comparison outside the whole case statement. Am getting exception like this please help to find the wrong thing. 00) ORDER BY Oct 16, 2008 · The problem with this is that when the SQL engine goes to evaluate the expression, it checks the FROM portion to pull the proper tables, and then the WHERE portion to provide some base criteria, so it cannot properly evaluate a dynamic condition on which column to check against. 31. When rows are inserted into this table, the first name and last name fields are supposed to be in all upper case, but somehow some values in these two fields are mixed case. COL1 END FROM A1,B1,C1; That is if A1. CASE WHEN <condition> THEN <return expression> your query is malformed. Jan 11, 2016 · I am facing difficulty in understanding oracle(12c) sql order by clause with case statement. “CASE” statement within “WHERE” clause in SQL Server 2008; Nested case statements vs multiple criteria case statements; Case statement in WHERE clause in SQL Server Sep 22, 2015 · If that's the case, then it seems logical that they would have the ability to reformat the In clauses before they get put into the Case expression. The first WHEN clause that satisfies the condition will be executed, and the controller will skip the remaining alternatives. NAME Like 'IgNoReCaSe' If I would like, that the query would return either "IGNORECASE The WHERE clause specifies a search condition for rows returned by the SELECT statement. In the absence of ordered_predicates, Oracle uses the following steps to evaluate the order of SQL predicates:. BusinessEntityID = ph1. x. Oracle 9i extended its support to PL/SQL to allow CASE to be used as an expression or statement. Basically, the following code is what I want, but it's not the Oracle correct syntax. BusinessId = CompanyMaster. The WHERE clause acts as a filter on the rows of the result set produced by the FROM clause. I have a table with the below data, SELECT DEPT_NO, DEPT_NAME FROM SORTNG_LOGIC; DEPT_NO DEPT_NAME Nov 16, 2015 · You can do the same thing using Oracle's syntax as well but it gets a bit hinkey. Because of this, the optimizer will just use a table Jul 11, 2016 · Oracle SQL CASE expression in WHERE clause only when conditions are met. SQL "case when" query. Apr 2, 2020 · Case construct with WHERE clause Hi Tom, I have a question and I don't know if this is possible or if i'm jsut doing something wrong because i get multiple errors like missing right paren, or missing keyword. With the kind of query you want to do I can't help but think there are some omissions in the database schema. You can change either the session or the database to use linguistic or case insensitive searching. val(+) = 'test' Note that in both cases, I'm ignoring the c table since you don't specify a join condition. Jul 6, 2015 · I have a codition in which i need to use multiple parameters in where clause using Conditional operator. Hi ALL, Plseas suggest me Feb 20, 2013 · Since COL1 IN (COL1) is the same as true, you can rewrite your query like this:. op = 2 and case when (:stat = -11) then (sale. IssuedTo='SM' AND LBT. CASE expressions require that they be evaluated in the order that they are defined. Mar 15, 2021 · Is it possible to use a SELECT statement within case For ex, SELECT CASE WHEN A1. Technical questions should be asked in the appropriate category. 64. Oct 29, 2013 · How to convert string field and use for Where clause. COLUMN2) AND (D. Here my code DECLARE CURSOR cur_contact_without_media (pP Mar 27, 2012 · These changes document Community specific rules and Oracle’s content moderation practices including use of automated tools, appeals process, and Oracle’s contact details. type_id = 27 or sale. Jun 30, 2016 · Something isn't right in this Your using the case in the where clause but I don't think that's where you want it. 1022. If none of the WHEN . SE Jun 7, 2016 · Rather than putting the data in a case statement where you might have to repeat that case statement in more than one query, you could create a table with static data, then joint to that table. The CASE expression matches the condition and returns the value of the first THEN clause. Can You Use An SQL CASE within CASE? Yes, you can use a CASE within CASE in SQL. Case your column and your string identically. DECODE can check equality operators only where as CASE can support all relational operators DECODE can be used in sql only where as CASE can be used in SQL AND PL/SQL CASE is better than DECODE. SELECT empno, ename, job FROM scott. type_id = 29) else (sale. id(+) AND b. Surely you can add some constraints on obj_C and obj_D so that null is not allowed? This would simplify things. 2. 3 WHEN 'D' THEN 1 WHEN 'D-' THEN 0. customer_id IS NULL; and when pcustomer_id IS NOT NULL then c. I tried to guess your table structure from above comment, let's see this example: SQL> create table employees (emp_id number, admin_user number, project_id number); Table created. type_id = 28 or sale. column2 from tableb) b where (Case when b. The point of my answer is to simply provide to you an alternative to the existing answer. Case Statement on Multiple conditions in Oracle. Ask Question Asked 12 You actually don't need the case here, this or clause will try the friendly name first it it was null it won't Jul 11, 2013 · This is a simple question, I've read some details about using CASE in WHERE clause, but couldn't able to make a clear idea how to use it. Oct 25, 2017 · I'm trying to avoid dynamic sql. Two of the fields are varchar - last_name and first_name. If none of the WHEN THEN pairs meet this condition, and an ELSE clause exists, then Oracle returns else_expr. Jan 12, 2015 · does anyone know whats wrong with this nested select statement? It complains about missing )'s but i can't understand why it doesn't work (i have left off the other bits of the statement) Select ( Aug 17, 2010 · Hi All, I'm on oracle 10gr2. rating < p_rating, correspondingly in the SQL. BusinessEntityID GROUP BY JobTitle HAVING (MAX(CASE WHEN Gender = 'M' THEN ph1. 13. You can also set up indexes to use particular sort orders. If so, then use b. COL1 FROM A1,C1 WHERE A1. May 15, 2009 · is possibile create a CASE in where clause, something as, So, i can write a single query, CASE (in where-clause) WHEN (KPMERCE IS NULL AND KSMERCE IS NULL) WHEN (KPMERCE IS NOT NULL AND KSMERCE IS NULL AND K_PMERCE = KPMERCE) WHEN (KPMERCE IS NOT NULL AND KSMERCE IS NOT NULL AND K_PMERCE = KPMERCE AND K_SMERCE = KSMERCE) Dec 30, 2016 · The idea is great, but add Z4/C to the data and you'll see the flaw. 7 WHEN 'B+' THEN 3. col1 then select from A1 and B1 and if not select from A1 and C1 Thanks Mar 3, 2021 · How to return multiple values for THEN clause in an SQL CASE expression Hi Tom,The question which i am asking might look very simple but for the past 2 days I have been trying for a solution and checking in multiple forums but couldn't get any clue. May 16, 2009 · More detail on Mr Dredel's answer and tuinstoel's comment. If you object to any changes, you may request that your account be closed by contacting oracle-forums-moderators_us@oracle. status. for the field b. I want to use as: when pcustomer_id IS NULL then WHERE c. When searching on these values, often you want any matching letter – case is irrelevant. Oracle CASE expression has two formats: the simple CASE expression and the searched CASE expression. CASE s. COL1=C1. One of the multiple ways of writing this would be: Depending on each weekday attribute in table ROUTINE a case statement should be used, that checks if r. Oracle query case statement in the Mar 11, 2010 · For appeals, questions and feedback about Oracle Forums, Case in where clause. eg Jan 3, 2014 · Oracle doesn't treat Boolean expressions like other expressions — it handles them as syntax rather than as a type — so CASE expressions can't evaluate to Booleans. . ColumnName != null which always evaluates to NULL. How can I do it? Oct 30, 2017 · Here is the query that you can use. Aug 20, 2019 · The option type = '1' is common in both cases so you can leave it out of the CASE statement (also because it would be syntactically wrong to try to return 2 values from the CASE statement): where type = '1' and status = case when carName = :P_PARAMETER then 'N' else 'Y' end @Aleksej: OP should select the answer that best suited his needs. end; In where clause i want Apr 25, 2009 · In this below query i want to check more than one values in CASEwat to do? SELECT column1, column2 FROM table1 WHERE columnX IN <case starts here>(CASE ( valuex = TRUE ) THEN (SELECT columnA FROM tableA where columnB = 'value') //here i want to chk 2 values like " ( 250,3 )" ELSE (SELECT columnA FROM tableA) END)<case ends here> May 26, 2016 · Couldnt try it on oracle. It's old Oracle syntax that is sometimes preferred by people who learned it first, since they like that it makes their code shorter. Tried a whole host of methods using STRAGG and in-list functions but kept running into limitations Thanks for showing how I can do dynamic where clauses without using pl/sql. WHERE Clause in Feb 12, 2014 · You can apply the logic you are attempting, but it is done without the CASE. COL1=B1. In almost all databases, it comes down to "the optimizer understands boolean expressions". column2,a. COMPARE_TYPE <> 'A' AND T1. And obviously you can't escape from the fact that case expressions are really just a concealed way of writing nested IF/THEN/ELSEs which inevitably has, in a certain sense, "more procedurality" to it than some other language constructs. If budgpost is really a character column as is stated, then we have to assume that a non-numeric value might make its way into one of the In clauses. Ultimately what method you choose is dependent on your individual circumstances; the main thing to remember is that to improve performance you must index correctly for case-insensitive searching. asked Once a WHEN clause is matched and its statements are executed, the CASE statement ends. 0. select business_unit, project_id, integration_tmpl, nvl (sum (case when analysis_type = 'act' then summed_amts end), 0) - nvl (sum (case when analysis_type = 'cls' then summed_amts end), 0) - nvl (sum (case when analysis_type Nov 20, 2015 · i'm using the following query to create a view in oracle 11g (11. COLUMN4 = D. 7 WHEN 'C+' THEN 2. You can either put your query in a subselect: SELECT gpaScore FROM (SELECT ( CASE grade WHEN 'A+' THEN 4 WHEN 'A' THEN 4 WHEN 'A-' THEN 3. COLUMN1 = D. I have a scenario where I have to run a report in automatic and manual mode. 3 WHEN 'C' THEN 2 WHEN 'C-' THEN 1. Then in the WHERE clause, I want to evaluate that input and if Y, have the WHERE clause run as: WHERE end_date is null but if the input is N, then run the query with the WHERE clause as: Feb 1, 2018 · The FETCH FIRST clause is available only as of Oracle 12c, though. AreaSubscription WHERE AreaSubscription. column1,b. column1 is not null then a. column2 = b. eg May 16, 2009 · More detail on Mr Dredel's answer and tuinstoel's comment. If you aren't familiar with APEX, it uses low-code to produce a front-end page that is data driven; this case uses a dropdown to select from a list, and I'm comparing that list selection to values pulled from my database. rating = p_rating or b. Rate ELSE NULL END) > 40. Viewed 68 times 1 I am working on an existing extraction and must add two new view This is working Oracle example but it should work in MySQL too. Ask Question Asked 11 years, 2 months ago. with tmp as ( select 'Oracle' as field_name , 1 as data from dual union all select 'Oracle' as field_name , null as data from dual union all select NULL as field_name , null as data from dual union all select 'Test' as field_name , null as data from dual ) Select * from tmp Where 1 = case when field_name = 'Oracle' and data is null then 0 else 1 end Oracle SQL CASE statement gives you the flexibility to use sql IF ELSE logic in a SELECT, WHERE and JOIN clause. Status may be null, if so I return records of any Feb 10, 2017 · Oracle ignores rows where one or more of the selected columns is NULL. rating > p_rating or b. For example, if the grade is A+ and student_id is 1001 , or if the grade is A and student_id is 2009 , it returns 1 (included), otherwise, it returns 0 (excluded). id_file) as attachments_count, case when sum (f. Replace your row_number clause with rank() over (partition by col1 order by case when col2 = 'A' then 1 else 2 end) as rn in order to solve it. The following illustrates the syntax of the WHERE clause: SELECT select_list FROM table_name WHERE search_condition ORDER BY sort_expression; Code language: SQL (Structured Query Language) (sql) The WHERE clause appears after the FROM clause but before the May 2, 2018 · There are valid uses of a CASE in a WHERE clause, especially to force Oracle to run one predicate before another (eg check a string only contains digits before doing a TO_NUMBER on it ) – Gary Myers Nov 30, 2021 · I want to write a query - to cover a case :- where I want to check if any misc value present for a code_id (a input vairable) if not then use code_id as default value (i. Follow edited Dec 14, 2020 at 11:23. if seems like you just want to format the date Your not actually comparing the end date to anything which is where you're missing something (it is expecting there result of your case statement to be compared to something) Example. For Automatic mode - all the paramete Jun 22, 2018 · In your case, only you know what defines "previous row" (since you didn't tell us that bit of logic); that's what needs to go inside the (currently missing) OVER clause to tell Oracle how to pick the previous row. col1 matches B1. Next Steps Oct 18, 2009 · SELECT col1 as a, CASE WHEN a = 'test' THEN 'yes' END as value FROM table; I am trying to alias the column because actually my CASE statement would be generated programmatically, and I want the column that the case statement uses to be specified in the SQL instead of having to pass another parameter to the program. Aug 1, 2017 · I have a WHERE clause that I want to use a CASE expression in. Like procedure samp (pId number, pValue varchar, details out T_cursor) is begin Open details for Select id, No,Name from tbl1 where. Thank you! Interested in getting your voice heard by members of the Developer Marketing team at Oracle? Check out this post for AppDev or this post for AI focus group Mar 14, 2013 · The CASE statement evaluates multiple conditions to produce a single value. Your continued use of Oracle Communities Oct 25, 2016 · Now available on Stack Overflow for Teams! AI features where you work: search, IDE, and chat. The Oracle IN operator determines whether a value matches any values in a list or a subquery. Oct 2, 2018 · (1) you can't use a case statement anywhere in a sql query; (2) you can use a case expression anywhere in a sql query where an expression is allowed, including the select and where clauses. partnum LIKE sPartStrp||'%') Oct 20, 2016 · You can also go the other way and push both conditionals into the where part of the case statement. In these cases you probably want to make use of the NVL-Funktion to map NULL to a special value (that should not be in the values): select * from tab1 where (col1, NVL(col2, '---') in (select col1, NVL(col2, '---') from tab2) oracle sql I'm working in Oracle's APEX environment, trying to return all values in one case and specific values in another case. Jan 25, 2018 · For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle. Modified 3 months ago. Rate ELSE NULL END) > 42. Using SELECT inside COALESCE. Jan 22, 2014 · I am trying to execute a query in Oracle database. The problem with the case (as you have written it) is that Oracle does not treat the value from a logical expression as a valid value. 2. SELECT table_name, CASE owner WHEN 'SYS' THEN 'The owner is SYS' WHEN 'SYSTEM' THEN 'The owner is SYSTEM' ELSE 'The owner is another value' END FROM all_tables; Sep 30, 2016 · I'm interesting that how can I use if-then-else statement or any control structure in where clause in Oracle. column2) Thanks for your help May 17, 2016 · This is because a DATE column in Oracle also contains a time part. I have no data to test this against and that's not the point. 3 WHEN 'B' THEN 3 WHEN 'B-' THEN 2. column1,a. select * from cardimport where STATUS = CASE WHEN STATUS = '' THEN 'F' ELSE STATUS END Feb 19, 2020 · Oracle - Case in where clause. The CASE expression was first added to SQL in Oracle 8i. Kindly guide me how can i return multiple parameters from case clause. please let me know how to do it. If you want to find all the exam results with A or B grades, you can place the select above in a subquery. Oracle SQL Case Statement in Where Clause. No, Oracle can't use boolean expressions as results from functions. SELECT count(*) FROM userTable WHERE ( CASE WHEN mac IS NULL THEN mac IS NULL ELSE mac = '000fe95erd32' END ) your clause is not well good. dimension) is null then 0 else sum (f. Aug 20, 2008 · I had played around with using the CASE statement in the where clause to sql more dynamic but had also run into the same problem with needing multiple values returned for the in. plsql conditional where clause. I have the following where clause,,whenre I need to use case for one of the filtering condition in the where clause. Dec 4, 2013 · For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle. COLUMN3 = 1) AND (DISTINCT A. Borrowing your example var l varchar2(4); exec :l := '551F'; with rws as ( select '551C' assembly_line from dual union all select '551S' assembly_line from dual union all select '551F' assembly_line from dual union all select '1234' assembly_line from dual ) select * from rws where case when :l Jan 14, 2016 · Oracle tries to filter the number of records to be scanned from table by going for the where clause first before select that is why your query fails. Create Procedure( aSRCHLOGIC IN Varchar, aPARTSTRP IN VarChar ) Declare sLogic VARCHAR(100) := aSRCHLOGIC; sPartStrp VARCHAR(100); BEGIN SELECT * FROM parts p WHERE ( Case sLogic WHEN (sLogic = 'begins') THEN (p. Value Match (Simple) CASE Expression; Searched CASE Expression; Value Match (Simple) CASE Statement; Searched CASE Statement; Related articles. 5. Aug 30, 2021 · I am trying to write a "case" statement inside a "where clause" which has an "in" statement in the "then" part. customer_id = pcustomer_id. column1 when b. AreaId FROM @Areas) One more solution is Dec 22, 2023 · Case when clause in oracle. Ask Question Asked 3 months ago. GRP_ID ELSE ? END And Decode works in a similar fashion, although I think it's less readable. So something like: case when then when then end = I gather what you want is logic along the lines of: - If ass_line = '551F', then match any values for assembly line in ('551F','551C','551S') Apr 24, 2007 · I want to use the CASE construct after a WHERE clause to build an expression. And I'm assuming that you don't really want to join A to B and then generate a Cartesian product with C. I have a column gap_value if the user sends a parameter 'P' then I need to fetch gap_value>0 else if 'N' it should be gap_value<0. I do the same for the business_unit column with a second CASE statement. select * from student where (cast (nvl(linerevnum,'0') as int)) = 1 liner Jun 23, 2020 · A short time ago we were introduced the incredibly useful and versatile Case Statement. So then you might think you could do: Mar 13, 2015 · To keep it simple I would go for union clause in this case, so you can have your where clause as complex as you need. You are missing smth - see IN after END Replace 'IN' with '=' sign for a single value. LIBRARYTRANSID THEN 1 WHEN LBT. COMPARE_TYPE = 'A' AND T1. Thank you! Interested in getting your voice heard by members of the Developer Marketing team at Oracle? Check out this post for AppDev or this post for AI focus group Oct 10, 2008 · hello all, Is that possible a case in a where clause? i'm using oracle10g and toad v9. Jun 2, 2023 · Yes, you can use an SQL CASE in a WHERE clause. In the case, I will check if the Operator is equal, greater than or less than. 00 OR MAX(CASE WHEN Gender = 'F' THEN ph1. LIBRARYTRANSID THEN 1 ELSE 0 END`enter code here`select * from Tran_LibraryBooksTrans LBT left join Tran Jun 23, 2009 · As I had written in title, I have SQL query, run on Oracle DB, lets say: SELECT * FROM TABLE WHERE TABLE. SQL SELECT WHERE field contains words. COL1 FROM A1, B1 WHERE A1. Select CASE SQL Since web search for Oracle case tops to that link, I add here for case statement, Using Case When Clause in Where Clause. something like select MISC_FLAGS from systemcode where rec_type = 'C' and code_type = 'SAN' and CODE_ID = 'HT'; Mar 22, 2011 · There are 3 main ways to perform a case-insensitive search in Oracle without using full-text indexes. I have a table, users, in an Oracle 9. 3. In a simple CASE expression, Oracle Database searches for the first WHEN THEN pair for which expr is equal to comparison_expr and returns return_expr. Another way to use the Case Statement is within the WHERE clause. tdo rgbqxv uwtemc nwfod trckx ejeb wypc makh fxxhb ejwkr