Sql case when multiple then. An expression returns a single value.

Sql case when multiple then Ask Question Asked 6 years, 2 months ago. Evaluates a list of conditions and returns one of multiple possible result expressions. For some complex WHERE clauses, it may make sense to use it (your current one can be solved without, as @Somebody is in trouble's answer shows), but you need to structure it to return a single result value or expression: Select ID ,Case When [FLAG1] = 'Y' Then 'FLAG1' When [FLAG2] = 'Y' Then 'FLAG2' End as 'Service_Line' What I want is a result that looks like this. Apr 30, 2013 · You have to repeat your case construct for each column name. So if none of Oct 31, 2016 · I'm new to SPARK-SQL. Oct 25, 2012 · A different way to write case comes close, but then you have to repeat the variable: Multiple OR Clauses in sql server. The CASE expression goes through conditions and returns a value when the first condition is met (like an if-then-else statement). product_name ,pn_product_version => pr_out_rec. 4. My problem is that at the end of this I want to say ELSE CalendarQuarter IN (@Q1,@Q2,@Q3,@Q4). That is why you define the result of the CASE as a column, but cannot define columns in the case state Multiple values in SQL CASE's THEN Statement. Aug 27, 2015 · Just Replace your case like below . 18. Jul 29, 2012 · Probably not. CASE is a statement and can only be used to return the value for a single column. SQL - Case statement with multiple then. But you could use a common-table-expression(cte): with cte as ( Select IsNameInList1 = case when name in ('A', 'B') then 1 else 0 end, IsNameInList2 = case when name in ('C', 'D') then 1 else 0 end, t. 7. Is there an equivalent to "CASE WHEN 'CONDITION' THEN 0 ELSE 1 END" in SPARK SQL ? select case when 1=1 then 1 else 0 end from table Thanks Sridhar Apr 15, 2012 · You can use another column to store the other id with (a similar case) and use nulls to represent the else values, just like you're doing now. I assume that you want something like this: select A, B, (case when A = 'default' then 'dl_vint' when A = 'non default' then 'lw_vint' when A = 'Deliquent' then 'hg_vint' end) from Application The following query uses the CASE expression to calculate the discount for each product category i. You may use the following syntax trick: CASE WHEN 'Value' IN (TB1. e. * from table ) select userid , case when IsNameInList1=1 then 'Apple' when IsNameInList2=1 then 'Pear' end as snack , case when IsNameInList1=1 then 'Milk' when Dec 12, 2017 · select id, case when V1=1, then 'A' when V2=1, then 'B' when V3=1, then 'C' when V4=1, then 'D' when V5=1, then v5_text SQL return multiple values from CASE May 13, 2014 · I'm trying to write a CASE statement in the WHERE clause that goes something like this. Jan 6, 2015 · Here is an extract of my table: gid | datepose | pvc ---------+----------------+------------ 1 | 1961 | 01 2 | 1949 | 3 | 1990 | 02 Jun 24, 2019 · It is not possible to check for multiple equalities using just a single expression. Feb 27, 2017 · Your query is very readable and I see no real disadvantage in copy-pasting the expression. If you want to have this evaluation only once, the query gets slightly more complicated, as you'd go in two steps: Nov 22, 2016 · I have searched this site extensively but cannot find a solution. 0. This tutorial shows you how to use two forms of SQL CASE: simple CASE and searched CASE expressions to add the IF THEN ELSE logic to SQL statements. The CASE expression cannot be used to control the flow of execution of Transact-SQL statements, statement blocks, user-defined functions, and stored procedures. sql Multiple case Statement. Aug 20, 2024 · In this article, we’ll explore how to use the CASE statement with multiple conditions, providing simple examples that should work across most major relational database management systems (RDBMS s). 05, 2) -- CPU WHEN 2 THEN ROUND (List_price * 0. You may be able to turn this into a subquery and then JOIN it to whatever other relations you're working with. CASE evaluates a list of conditions to return specific results. So, once a condition is true, it will stop reading and return the result. MYSQL CASE THEN statement with multiple values. Id) -- omitted other columns else column1 end) FROM A; Jun 27, 2014 · Can we have multiple case then statements in sql. product_version ,pv_product_type => pr_out_rec . So something like this: WHERE region = CASE WHEN @cbEU = 'true' **THEN 0 OR 1** ELSE 2 END Or perhaps Oct 10, 2018 · SQL Server : case multiple operations in then part. Viewed 2k times 3 I have this case as a Sep 3, 2024 · Transact-SQL reference for the CASE expression. Modified 6 years, 1 month ago. , CPU 5%, video card 10%, and other product categories 8%. . ColumnZ) THEN Statement1 ELSE ' ' END AS MyColumn Mar 10, 2016 · Functions destroy performance. Oct 20, 2017 · SELECT (case A. The SQL CASE Expression. Jun 11, 2021 · SQL queries support case expressions. type="bk" THEN books. For a list of control-of-flow methods, see Control-of-Flow Language (Transact-SQL). SQL Case with multiple values. Apr 23, 2013 · I am using T-SQL and I am trying to have a then statement return multiple values so I can search the 'Year' column for multiple years. Number WHEN '1121231','31242323' THEN 1 WHEN '234523','2342423' THEN 2 END AS Test FROM tblClient c; May 25, 2016 · I need to use a CASE WHEN statement in my query with multiple 'THEN' options. For example (using SQL Server 2K5+ CTEs): Jun 20, 2012 · CASE is an expression - it returns a single result of a well defined type:. SQL Case statement with 'or' and 'and' 10. Id) when '3' then (select value from D where D. Aug 23, 2024 · This is your comprehensive guide to multiple case when in SQL. clientId=100 and '2'=C. Example: CASE WHEN wall. Here is the example of my query: SELECT ActivityID, Hours = (CASE WHEN ActivityTypeID <> 2 THEN FieldName = (Some Aggregate Sub Query), FieldName2 = (Some other aggregate sub query) WHEN ActivityTypeID = 2 THEN FieldName = (Some Aggregate Sub Query with diff result), FieldName2 = (Some Other Aggregate Sub Query with diff result Nov 17, 2016 · SQL Server allows for only 10 levels of nesting in CASE expressions. id2 END as column_2 Check the official documentation for more information. clientId=100 and '3'=D. An expression returns a single value. So if the year is 2016, I want to search for 2016 AND 2015. . WHEN condition_statementN THEN resultN ELSE result END; When you use the CASE statement, it has to be followed by a WHEN and THEN the result if the first condition is met. Something like this: case ColumnName when 'A' then 'Apple' when 'B' then 'Banana' end ColumnName, case ColumnName when 'A' then '1' when 'B' then '2' end ExtraColumn, There is a gotcha here. ColumnX, TB1. Case Statement Multiple Then values. policy_reference ,pv_product_name => pr_out_rec. 2. Discover tips and strategies to effectively apply this conditional logic in your queries. 08, 2) -- other categories END discount FROM products select empno, firstnme, midinit, lastname, case when edlevel < 15 then 'secondary' when edlevel < 19 then 'college' else 'post graduate' end from employee Another interesting example of CASE statement usage is in protecting from division by 0 errors. Multiple THEN to a single Dec 2, 2011 · A CASE statement can return only one value. Aug 30, 2022 · In my query, in Microsoft SQL, I want to say like: errorCode != case when :machine=1 then 158 to 160 when :machine=3 then 87-95 else 0 end Right now I am writing multiple cases like below. 1. SQL:2003 standard allows to define multiple values for simple case expression: SELECT CASE c. If the year is greater than 2013, then I want to search the current year and the previous year. Id) when '2' then (select value from C where C. ColumnY, TB1. SELECT product_name, list_price, CASE category_id WHEN 1 THEN ROUND (list_price * 0. Sep 16, 2011 · The question is specific to SQL Server, but I would like to extend Martin Smith's answer. ID Service_Line 194 FLAG1 200 FLAG1 200 FLAG5 My problem is that the Case expression only returns the first result so I end up with this. clientId=100 and '1'=B. CASE WHEN lr_my_rec. method_name in ('ProductName','ProductVersion','ProductType') THEN -- population record with product name , product version and product type p_required_det(pn_product_reference => pr_mi_exits. column1 when '1' then (select value from B where B. 1, 2) -- Video Card ELSE ROUND (list_price * 0. The way that you are suggesting in your second code block will not work. Nov 4, 2022 · The SQL CASE statement has the following syntax: CASE WHEN conditional_statement1 THEN result1 . id1 END as column_1, CASE WHEN wall. bjeth wrd ydmcap vonza qyjo hmwtgr wmoekh qvxiyp dnpm xrrltc