mysql>mysql>mysql>mysql>mysql> SELECT 'AnB' REGEXP '^A$';+---------------------+| 'AnB' REGEXP '^A$' |+---------------------+| 0 |+---------------------+1 row in set (0.00 sec)mysql>mysql> SELECT 'AA' REGEXP '^A';+------------------+| 'AA' REGEXP '^A' |+------------------+| 1 |+------------------+1 row in set (0.00 sec)mysql>
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