If I set varchar (250) say on charset latin1 when I add a value say ‘abc’ characters does it means that the data allocated for it is 251bytes or 4bytes? Would it be the same way for other data types? Please advise?
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If I set varchar (250) say on charset latin1 when I add a value say ‘abc’ characters does it means that the data allocated for it is 251bytes or 4bytes? Would it be the same way for other data types? Please advise?
When you have a varchar(250) and you add ‘abc’ then 3 bytes/characters are allocated.
If you had user char(250) then 250 bytes/characters would have been allocated.
Note that for VARCHAR a minimal storage overhead is used internally to represent the datatype.