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mysql> select * from b;
+------+------+-------+
| id | name | bumen |
+------+------+-------+
| 2400 | a | 1 |
| 2300 | b | 1 |
| 2200 | a | 2 |
| 2200 | b | 2 |
+------+------+-------+
4 rows in set (0.00 sec)
mysql> select top 2 * from b order by id;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use near '2 * f
rom b order by id' at line 1
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