Internally SQL Server converts the statement into the CASE statement and executes. We can check it using the actual execution plan of a query. Execute the query from Example 6 with an Actual execution plan. In the actual execution plan, look at the properties of Compute Scalar. You can see...
SQL Копирај SELECT [Result] = IIF( 45 > 30, NULL, NULL ); The result of this statement is an error.C. IIF with NULL parametersSQL Копирај DECLARE @P INT = NULL, @S INT = NULL; SELECT [Result] = IIF( 45 > 30, @P, @S ); Here's the result set....
For more information, see IIF Function Query Hints in SQL Server Analysis Services 2008 and Execution Plans and Plan Hints for MDX IIF Function and CASE Statement. Examples The following query shows a simple use of IIF inside a calculated measure to return one of two different string values whe...
但不知何故，Microsoft query不会接受以下语句：派生表就是一个由查询结果生成的临时表。他是在外部查询...
SQL DECLARE@aINT=45, @bINT=40;SELECT[Result] =IIF( @a > @b,'TRUE','FALSE'); Here's the result set. Result --- TRUE B. IIF with NULL constants SQL SELECT[Result] =IIF(45>30,NULL,NULL); The result of this statement is an error. C. IIF...
EAGER and STRICT are mutually exclusive in the hint; they can be used in the same IIF(,,) over different expressions. For more information, seeIIF Function Query Hints in SQL Server Analysis Services 2008andExecution Plans and Plan Hints for MDX IIF Function and CASE Statement. ...
SQL DECLARE@aINT=45, @bINT=40;SELECT[Result] =IIF( @a > @b,'TRUE','FALSE'); Here's the result set. Result --- TRUE B. IIF with NULL constants SQL SELECT[Result] =IIF(45>30,NULL,NULL); The result of this statement is an error. C. IIF...
Now, we put that into our query, and we get: SELECT {columns} FROM {tables} WHERE datecolumn >= dateadd(month, datediff(month, 0, getdate()) - 1, 0) -- beginning of last month AND datecolumn < dateadd(month, datediff(month, 0, getdate()), 0) -- beginning of this month (no...
Hi all, I m unable to get my iif statement right.I have a table Dec 22 in which 2 columns are SO and Description. Say if I want a True if the values in...
box (we'll call it Text1). When the query is run, I want is to use all the records from a file where BALBOOK is equal to Text1. However, if Text1 is blank (or null) I want the query to use all the records. I don't know how to write the IIf statement. It would look so...