muttley91 muttley91 - 6 months ago 14
SQL Question

Set value to NULL in MySQL

I want a value to be set to

NULL
if nothing is put into the text box in the form I'm submitting. How can I make this happen?
I've tried inserting
'NULL'
but this just adds the word
NULL
into the field.

I'm not sure what code I should provide for this, I'm just writing an UPDATE query.

Answer

Don't put NULL inside quotes in your update statement. This should work:

UPDATE table SET field = NULL WHERE something = something
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