How do we know that NULL value has been selected for a nullable column

a.Check if equal to NULL
b.Use null indicator, 0 indicates null
c.Use null indicator, -1 indicates null
d.Use null indicator, -2 indicates null
e.None of the above.
Use null indicator, -1 indicates null

Questions by radibioinfo   answers by radibioinfo

Showing Answers 1 - 3 of 3 Answers


  • Aug 12th, 2014

0:- Not Null
-1:- Null Value
-2:- Null value because of some conversion error


  • Feb 13th, 2015

Place a null indicator variable in front of the host variable for the nullable column in the query, A value of -1 inidcator null value retrieved

  Was this answer useful?  Yes

Give your answer:

If you think the above answer is not correct, Please select a reason and add your answer below.


Related Answered Questions


Related Open Questions