【show index from 表名】和【show keys from 表名】能获得一样的效果,能查看到有关索引的信息; 【show create table 表名】可以查看到有关表的完整信息; 删除表 删除表我们依然使用的是【DROP】命令,语法如下: DROP TABLE 表名 1. 运行结果: mysql> show tables; +———-+ | Tables_in_test | +—...
mysql> create table table1# 创建表-> ( -> name varchar(50), -> age integer -> ); Query OK,0rows affected (0.02sec) mysql> show tables;# 查看表是否创建成功+---+| Tables_in_test |+---+| table1 |+---+1rowinset (0.00sec) mysql> describe table1;# 查看表结构+---+---+--...
可以通过 CHECK TABLE REPAIR TABLE 语句进行检测或修复。 初步判断是第一种情况,有两种解决方案:优化sql语句,但是如果数据量确实大,而且对程序性能要求不高的情况下,有一种简单的解决方法就是设置CommandTimeOut属性。 MySqlCommand optcom = new MySqlCommand(strOpt, mysqlcon, trans); optcom.CommandTimeout = ...
Section B.3.2.2, “Can't connect to [local] MySQL server” Section 15.7.3.2, “CHECK TABLE Statement” Section 18.2.1, “MyISAM Startup Options” Section 7.4.6, “Server Log Maintenance” Section 9.6.5, “Setting Up a MyISAM Table Maintenance Schedule” Section 5.5, “Using mysql in ...
use mysql; show tables; 显示数据表的结构: describe 表名; 建库与删库: create database 库名; drop database 库名; 建表: use 库名; create table 表名(字段列表); drop table 表名; 清空表中记录: delete from 表名; 显示表中的记录:
mysql -Nse 'show tables' DATABASE_NAME | while read table; do mysql -e "drop table $table" DATABASE_NAME; done Truncate (i.e. empty tables) mysql -Nse 'show tables' DATABASE_NAME | while read table; do mysql -e "truncate table $table" DATABASE_NAME; done Share Improve this ...
We can write comment to create a table: create database `mytest`; use `mytest`; create table `mytest` ( /* mytest mytest */ `code` varchar(15) NOT NULL, `type` varchar(20) NOT NULL ); How can show the comment /* mytest mytest */ in create table command? show create...
MySQL 错误: select command denied to user<userid>@<ip-address>for table<table-name> 在MySQL数据库中,当某个用户尝试查询(查询语句)某个表格时,可能会出现“select command denied”(选择指令被拒绝)的错误提示。错误提示中还会显示拒绝查询的用户ID、IP地址和所查询的表格名称。
6.5.1.6 mysql Client Tipsmysql is a simple SQL shell with input line editing capabilities. It supports interactive and noninteractive use. When used interactively, query results are presented in an ASCII-table format. When used noninteractively (for example, as a filter), the result is presented...
{"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 'NULL := last_insert_id()' at line 1"}How to repeat:CREATE TABLE `customer` ( `Id` int(11) NOT NULL AUTO_INCREMENT, `Name` varchar(40) ...