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SELECT column_name FROM table_name WHERE TRIM(column_name) IS NULL The problem there is that an index on COLUMN_NAME would not be used. You would need to have a function-based index on TRIM(column_name) if that is a selective condition.
4 dni temu · If a CASE statement needs to distinguish a NULL value, then the alternate CASE syntax should be used. expr and expr_to_match can be any type. They must be implicitly coercible to a common...
11 lip 2012 · Is there any better way to write the lines below in SQL Server 2005? CASE WHEN (ID IS NULL) THEN 'YES' WHEN (ID IS NOT NULL) THEN 'NO' END AS ID_Value,
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:
1 sie 2017 · I have a WHERE clause that I want to use a CASE expression in. However, my CASE expression needs to check if a field IS NULL. If the @UserRole variable value = 'Analyst', then the SupervisorApprovedBy column value must be NULL. Otherwise, I am saying return all data i.e. SupervisorApprovedBy = SupervisorApprovedBy.
15 mar 2013 · What I want to do is to unite first_name and last_name, but if last_name is null the whole name becomes null: SELECT first_name + CASE last_name WHEN null THEN '' ELSE ' ' + last_name END AS Name FROM dbo.person
15 lip 2020 · This help content & information General Help Center experience. Search. Clear search
