Search results
15 mar 2013 · 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. I hope this is a helpful alternative.
26 lip 2013 · You need to select one type or the other for the field, the field type can't vary by row. The simplest is to remove the ELSE '-' and let it implicitly get the value NULL instead for the second case.
The ISNULL () function returns a specified value if the expression is NULL. If the expression is NOT NULL, this function returns the expression.
3 wrz 2024 · If a literal NULL is provided as check_expression, ISNULL returns the data type of the replacement_value. If a literal NULL is provided as check_expression and no replacement_value is provided, ISNULL returns an int. Remarks. The value of check_expression is returned if it's not NULL.
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, sql-server
Therefore, if we want to retain the rows with null values, we can use ISNULL() to replace the null values with another value: SELECT STRING_AGG(ISNULL(TaskCode, 'N/A'), ', ') AS Result FROM Tasks;
1 paź 2012 · ISNULL(@VariableEqualToZero,1) use. CASE WHEN @VariableEqualToZero IS NULL OR @VariableEqualToZero = 0 THEN 1 ELSE @VariableEqualToZero END. COALESCE and ISNULL are essentially just shortcuts for a CASE statement. You can consult the help for the syntax of CASE.
