本文导读:在使用mysql数据库时,经常需要对mysql进行维护,查询每个库、每个表的具体使用情况,Mysql数据库可以通过执行SHOW TABLE STATUS命令来获取每个数据表的信息。 一、使用方法 SHOW TABLE STATUS [FROM db_name] [LIKE ‘pattern’] 1、说明 [FROM db_name] 可选,表示查询哪个数据
mysql> SHOW CREATE TABLE mysql.user\G; *** 1. row *** Table: user Create Table: CREATE TABLE `user` ( `Host` char(60) COLLATE utf8_bin NOT NULL DEFAULT '', `User` char(32) COLLATE utf8_bin NOT NULL DEFAULT '', `Select_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL ...
CREATE TEMPORARY TABLE temp_tables (table_name VARCHAR(255)); INSERT INTO temp_tables (table_name) SELECT table_name FROM information_schema.tables WHERE table_schema = 'your_database'; 复制代码 优化查询性能:如果你发现查询性能仍然很慢,可以考虑优化查询或调整 MySQL 服务器的配置。例如,你可以调整 ...
A more accurate method of obtaining this information in such cases is to query the INFORMATION_SCHEMA PARTITIONS table, as shown in this example: SELECT SUM(DATA_FREE) FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_SCHEMA = 'mydb' AND TABLE_NAME = 'mytable'; For more information, see ...
$result = mysql_query($showquery); while($array = mysql_fetch_array($result)) { echo "<br><br> Table Name : ".$array['Name']."<br /> ... ... When the data file was last updated. : ".$array ['Update_time']."<br />"; } } === This...
SELECTTABLE_NAMEFROMINFORMATION_SCHEMA.TABLESWHERETABLE_SCHEMA='mydatabase'; 1. 2. 3. 执行以上命令后,MySQL将返回一个结果集,其中包含名为"mydatabase"的数据库中的所有表名。 TABLE_NAME customers orders 总结 通过上述三种方法,我们可以轻松地查看MySQL数据库中的表名。SHOW TABLES命令提供了最简单的方式,...
mysql中使用show table status 查看表信息 本文导读:在使用mysql数据库时,经常需要对mysql进行维护,查询每个库、每个表的具体使用情况,Mysql数据库可以通过执行SHOW TABLE STATUS命令来获取每个数据表的信息。 一、使用方法 SHOW TABLE STATUS [FROM db_name] [LIKE 'pattern'] ...
mysql>show tables; 或 mysql>show tablesfromdatabase_name; 3.显示表中列名称 1 mysql>show columnsfromdatabase_name.table_name; 4.查看某MySQL用户的使用权限 1 mysql>show grantsforuser_name; 5.显示create database 语句是否能够创建指定的数据库,并可以查看到创建库语句的SQL信息。
Currently temporary tables are invisible for SHOW TABLES, SHOW OPEN TABLES, SHOW TABLE STATUS, and within INFORMATION_SCHEMA. Also there is no way to see which tables are now hidden, replaced by temporary tables. This should be fixed by adding a new column 'Temporary' to the above results ...
$ mysqlshow -u root -p db_learn Activity Enter password: Database: db_learn Table: Activity +---+---+---+---+---+---+---+---+---+ | Field | Type | Collation | Null | Key | Default | Extra | Privileges | Comment | +---+---+---+---+---+---+---+---...