BINARY
Casts the input to a binary datatype.
There is usually no visible effect on the printed value; what changes is the rules for comparison and sorting.
Syntax
BINARY( input )
Return Type
A binary object.
Examples
SELECT 'ohai' = 'OHAI', BINARY('ohai') = 'OHAI';
****
+-----------------+-------------------------+
| 'ohai' = 'OHAI' | BINARY('ohai') = 'OHAI' |
+-----------------+-------------------------+
| 1 | 0 |
+-----------------+-------------------------+