how many character enter with this varchar(50) datatype.

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Hello friends
i am confused with varchar datatype. what i have known is varchar()take 1 byte for each character + extra 2 byte.why it takes extra 2 bytes. How many character will be stored in varchar(50) datatype.

Posted 22-Jul-12 21:24pm

baskaran chellasamy

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Aarti Meswania · Accepted Answer · 2012-07-22T21:29:00

Solution 2

extra 2 bytes reserved for null character '\0'
and varchar(50) will allow to store 50 characters.
'null character' bytes are managed by SQL internally.

Posted 22-Jul-12 21:29pm

Aarti Meswania

OriginalGriff · Accepted Answer · 2012-07-22T21:29:00

The "var" bit means that the number of characters in the data is not fixed - it can be any number of bytes up to the maximum. The additional bytes are the count of the number of bytes currently used, generally.

So varchar(50) could hold 0 to 50 characters, and would take 52 bytes to store.