What is difference between NULL and Empty String in Mysql ?
How much storage space it will take ?
For Example .
In the user table
name : NULL – How much space its take
phone : -How much space its take
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What is difference between NULL and Empty String in Mysql ?
How much storage space it will take ?
For Example .
In the user table
name : NULL – How much space its take
phone : -How much space its take
There are valid reasons to use NULL, but saving space in row storage isn’t one. If you want a ‘don’t know’ placeholder use a NULL; if you simply want to store an empty string that behaves like an empty string, go ahead and store an empty string. If it’s a VARCHAR column (which it probably will be) then it’s hardly taking much space anyway.