您可以借助 INFORMATION_SCHEMA.TABLES 来实现此目的。使用带间隔的 date_sub() 。语法如下 -
SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES
WHERE DATE_SUB(NOW(), INTERVAL -1HOUR) < ‘UPDATE_TIME’;现在您可以检查上面的语法。这是查找过去一小时内修改的表的查询 -
mysql> select table_name from `INFORMATION_SCHEMA`.`TABLES`
-> WHERE
-> DATE_SUB(NOW(), INTERVAL 1 HOUR) < `UPDATE_TIME`;输出
+---------------------+
| TABLE_NAME |
+---------------------+
| innodb_table_stats |
| innodb_index_stats |
| employeeinformation |
+---------------------+
3 rows in set (0.37 sec)以上查询仅选择表名。如果您想要表架构、表类型等信息，则需要使用以下查询。查询显示最近一小时内修改的表 -
mysql> SELECT *
-> FROM `INFORMATION_SCHEMA`.`TABLES`
-> WHERE
-> DATE_SUB(NOW(), INTERVAL 1 HOUR) < `UPDATE_TIME`;以下是显示最近一小时内修改的表信息的输出 -
+---------------+--------------+---------------------+------------+--------+---------+------------+------------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+------------+--------------------+----------+---------------------------------------+---------------+
| TABLE_CATALOG | TABLE_SCHEMA | TABLE_NAME | TABLE_TYPE | ENGINE | VERSION | ROW_FORMAT | TABLE_ROWS | AVG_ROW_LENGTH | DATA_LENGTH | MAX_DATA_LENGTH | INDEX_LENGTH | DATA_FREE | AUTO_INCREMENT | CREATE_TIME | UPDATE_TIME | CHECK_TIME | TABLE_COLLATION | CHECKSUM | CREATE_OPTIONS | TABLE_COMMENT |
+---------------+--------------+---------------------+------------+--------+---------+------------+------------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+------------+--------------------+----------+---------------------------------------+---------------+
| def | mysql | innodb_table_stats | BASE TABLE | InnoDB | 10 | Dynamic | 449 | 145 | 65536 | 0 | 0 | 4194304 | NULL | 2018-09-22 20:37:26 | 2018-12-24 15:13:41 | NULL | utf8_bin | NULL |
row_format=DYNAMIC stats_persistent=0 | |
| def | mysql | innodb_index_stats | BASE TABLE | InnoDB | 10 | Dynamic | 1413 | 243 | 344064 | 0 | 0 | 4194304 | NULL | 2018-09-22 20:37:26 | 2018-12-24 15:13:41 | NULL | utf8_bin | NULL |
row_format=DYNAMIC stats_persistent=0 | |
| def | test | employeeinformation | BASE TABLE | InnoDB | 10 | Dynamic | 6 | 2730 | 16384 | 0 | 0 | 0 | NULL | 2018-12-24 15:12:04 | 2018-12-24 15:14:00 | NULL | utf8mb4_0900_ai_ci | NULL | |
|
+---------------+--------------+---------------------+------------+--------+---------+------------+------------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+------------+--------------------+----------+---------------------------------------+---------------+
3 rows in set (43.72 sec)
