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  1. uepjp

    Char Versus Varchar2

    Not strictly true. Varchar2(1) will use more space than char(1), since it is variable length Oracle will store the length in the row header in 3 bytes, instead of the 1 byte row header used by char(1). So varchar2 will be stored in minimum of 3 bytes, as apposed to the 2 used by char. However...

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