?

mysql> use test;
Database changed
mysql> select @@version;  
+-----------+
| @@version |
+-----------+
| 5.5.15    |
+-----------+
1 row in set (0.00 sec)

mysql> select @@sql_mode;
+----------------------------+
| @@sql_mode                                                     |
+----------------------------+
| STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION |
+----------------------------+
1 row in set (0.00 sec)

mysql> show column from mytable;
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 'column from mytable' at line 1
mysql> show columns from mytable;
+-------+----------+------+-----+---------+-------+
| Field | Type     | Null | Key | Default | Extra |
+-------+----------+------+-----+---------+-------+
| a     | int(11)  | NO   | PRI | NULL    |       |
| b     | char(18) | NO   |     | NULL    |       |
+-------+----------+------+-----+---------+-------+
2 rows in set (0.01 sec)

mysql> use mysql;
Database changed
mysql> show index from db;
+-------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment |
+-------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| db    |          0 | PRIMARY  |            1 | Host        | A         |        NULL |     NULL | NULL   |      | BTREE      |         |               |
| db    |          0 | PRIMARY  |            2 | Db          | A         |        NULL |     NULL | NULL   |      | BTREE      |         |               |
| db    |          0 | PRIMARY  |            3 | User        | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| db    |          1 | User     |            1 | User        | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
+-------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
4 rows in set (0.00 sec)

mysql> show privilges;
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 'privilges' at line 1
mysql> show create table user;
+-------+---------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------
| Table | Create Table


                                                                                                                                       |
+-------+------