Re:Handling Null Values in Postgres
by ibrar74 on Friday March 06, 2020 @12:39PM
(#22505543)
What do you mean by never set? In the database, you can either enter a string (empty or non-empty) or NULL in a column. There no such thing called never set.
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That's my question, if you have a field that represents something and that field is a string that can be empty, null or contains anny string, if you don't use NULL how do you make the difference between an empty string and a null string ( user set "" vs never set anything )