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15 mar 2013 · CASE LEN(ISNULL(last_Name,'')) WHEN 0 THEN '' ELSE ' ' + last_name END AS newlastName LEN(ISNULL(last_Name,'')) measures the number of characters in that column, which will be zero whether it's empty, or NULL, therefore WHEN 0 THEN will evaluate to true and return the '' as expected.
26 lip 2013 · In this situation you can use ISNULL() function instead of CASE expression . ISNULL(B.[STAT], C.[EVENT DATE]+10) AS [DATE]
The SQL CASE Expression. 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.
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.
11 lip 2012 · You should be able to accomplish this with the statement below. isnull(nullif(isnull(ID,'Y'),ID),'N') –
17 maj 2013 · I settled on using the following approach: AND ((@BudgetFilter = 0 AND ISNULL(Project.Contribution, 0) >= 25000) OR (@BudgetFilter = 1 AND ISNULL(Project.Contribution, 0) < 25000) OR (@BudgetFilter = 2 AND ISNULL(Project.Contribution, 0) > 0))
3 wrz 2024 · CASE can be used in any statement or clause that allows a valid expression. For example, you can use CASE in statements such as SELECT, UPDATE, DELETE and SET, and in clauses such as <select_list> , IN, WHERE, ORDER BY, and HAVING.
