Aug 04, 2020 · Often we find it useful to group data by some characteristic of the group, such as department or division, or benefit level, so that summary statistics about the group (totals, averages, etc.) can be calculated. For example, to calculate average departmental salaries, the user could group the salaries of all employees by department.
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ZERO_DIVIDE Exception 24.14.6. When the exception occurs, program control passes to the EXCEPTION block where the WHEN clause is examined for a matching exception.
Apr 05, 2012 · Even if you think you will never encounter this with your result set, it’s advisable to guard against it because when divide by zero is encountered, an error is thrown. The best method I’ve found to overcome this is by using the NULLIF function. This function takes two parameters and if they are equal, a NULL value is returned.
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In the first example above, if you were using a catch-all exception clause and a user presses Ctrl-C, generating a KeyboardInterrupt, you don't want the program to print "divide by zero". However, there are some situations where it's best to catch all errors.
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Jun 28, 2019 · You can use NULLIF or CASE. NULLIF: SELECT @Value1/NULLIF(@Value2,0); CASE: SELECT CASE WHEN @Value2 = 0 THEN NULL ELSE @Value1/@Value2 . The return is NULL for this operations.