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26 lip 2013 · In this situation you can use ISNULL() function instead of CASE expression . ISNULL(B.[STAT], C.[EVENT DATE]+10) AS [DATE]
1 sie 2017 · You can check if a field or variable is equal to NULL because all comparisons to NULL return NULL (which in a CASE or IF predicate is taken as meaning false), so WHEN <FieldOrVariable> = NULL THEN <output> and WHEN <FieldOrVariable> <> NULL THEN <output> will never match.
The CASEexpression goes through conditions and returns a value when the first condition is met (like an if-then-else statement). So, once a condition is true, it will stop reading and return the result. If no conditions are true, it returns the value in the ELSEclause.
11 lip 2012 · Yes - I did try CASE WHEN (ID IS NULL) THEN 'YES' ELSE 'NO' END AS ID_Value But I am looking for some other better approach something like IF(ID IS NULL, 'YES', 'NO') AS ID_Value in the Ms Sql, so that everything can be in a single line. Any suggestions please
19 kwi 2016 · 1) : select a.Id, case when b.Id is not null then convert (bit,1) else convert (bit,0) end IsActive from A a left join B b on a.Id = b.Id; 2) : select a.Id, iif (exists (select top 1 1 from B where Id = a.Id), convert (bit,1), convert (bit,0) ) IsActive from A a;
7 sie 2018 · However, this would return null instead of error, if you want to display 0 instead then you need to use isnull() (MS SQL Specific) or coalesce() (SQL Standard). So, you can express it : select . . . , isnull(GROSS_SALES / nullif(GROSS_SF, 0), 0) from table t;
There are 3 possible ways to deal with nulls in expressions: using IsNull, Coalesce or CASE. I've explained these under separate headings below! The ISNULL Function. This function substitutes a given value when a column is null. The syntax is:
