MySQL Tutorial/Cast Functions Operators/BINARY

BINARY casts the string to a binary string

BINARY causes the comparison to be case sensitive.

BINARY also causes trailing spaces to be significant.

BINARY str is shorthand for CAST(str AS BINARY).

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mysql> mysql> SELECT "a" = "A"; +-----------+ | "a" = "A" | +-----------+ | 1 | +-----------+ 1 row in set (0.00 sec) mysql> SELECT BINARY "a" = "A"; +------------------+ | BINARY "a" = "A" | +------------------+ | 0 | +------------------+ 1 row in set (0.00 sec) mysql> SELECT "a" = "a "; +------------+ | "a" = "a " | +------------+ | 1 | +------------+ 1 row in set (0.00 sec) mysql> SELECT BINARY "a" = "a "; +-------------------+ | BINARY "a" = "a " | +-------------------+ | 0 | +-------------------+ 1 row in set (0.00 sec) mysql></source>