Using BINARY has the effect of causing [:lower:] and [:upper:] in regular expressions to act as you would expe : Binary « String « SQL / MySQL






  1. SQL / MySQL
  2. String
  3. Binary

Using BINARY has the effect of causing [:lower:] and [:upper:] in regular expressions to act as you would expe

       
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mysql>
mysql>
mysql> SELECT 'a' REGEXP '[[:upper:]]', BINARY 'a' REGEXP '[[:upper:]]';
+--------------------------+---------------------------------+
| 'a' REGEXP '[[:upper:]]' | BINARY 'a' REGEXP '[[:upper:]]' |
+--------------------------+---------------------------------+
|                        1 |                               0 |
+--------------------------+---------------------------------+
1 row in set (0.00 sec)

mysql>
mysql>








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