MYSQL使用.frm恢复数据表结构的实现方法

复制代码 代码如下:

mysql> USE innodb;
mysql> DATABASE changed
mysql> SHOW CREATE TABLE innodb;
ERROR 1146 (42S02): TABLE 'innodb.innodb' doesn't exist

复制代码 代码如下:

mysql> CREATE DATABASE tmp;
mysql> CREATE TABLE innodb (`id` int(11) NOT NULL) ) ENGINE=InnoDB
DEFAULT CHARSET=utf8;

复制代码 代码如下:

mysql> SHOW CREATE TABLE innodb /G;
*************************** 1. row **********
TABLE: innodb
CREATE TABLE: CREATE TABLE `innodb` (
`dd` varchar(1) NOT NULL,
`cc` varchar(1) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8
1 row IN SET (0.00 sec)
ERROR:
No query specified
mysql> INSERT INTO innodb (dd,cc) value (1,2);
mysql> Query OK, 1 row affected (0.00 sec)
mysql> SELECT * FROM innodb;
ERROR 2013 (HY000): Lost connection TO MySQL server during query

复制代码 代码如下:

mysql> USE tmp;
mysql> SHOW CREATE TABLE test;
ERROR 1017 (HY000): Can't find file: 'test' (errno: 2)

复制代码 代码如下:

mysql> repair TABLE test USE_FRM;
+------------------+--------+----------+----------+
| TABLE | Op | Msg_type | Msg_text |
+------------------+--------+----------+----------+
| test.test_myisam | repair | STATUS | OK |
+------------------+--------+----------+----------+
1 row IN SET (0.00 sec)

mysql> SHOW CREATE TABLE test /G;
*************************** 1. row **********
TABLE: test
CREATE TABLE: CREATE TABLE `test` (
`dd` varchar(1) NOT NULL,
`cc` varchar(1) NOT NULL
) ENGINE=myisam DEFAULT CHARSET=utf8
1 row IN SET (0.00 sec)
ERROR:
No query specified
mysql> INSERT INTO test (dd,cc) value(1,2);
Query OK, 1 row affected (0.00 sec)
mysql> SELECT * FROM test;
+------+
| dd | cc
+------+
| 1 |2
+------+
1 row IN SET (0.00 sec)