打开命令提示符, 输入:mysql -D samp_db -u root -p < createtable.sql (提示: 1.如果连接远程主机请加上 -h 指令; 2. createtable.sql 文件若不在当前工作目录下需指定文件的完整路径。) 语句解说: create table tablename(columns) 为创建数据库表的命令, 列的名称以及该列的数据类型将在括号内完成;...
1,在创建表之后添加 alter table 子表名 add foreign key(列名) references 主表名(主键名) 子表就是添加连接的那个表,主表就是被插入的那个表。 2,在创建表的时候添加的外键 create table 表名( id int primary key auto_increment, 字段名 类型varchar(20), 字段名 类型int, 主表名_id int, foreign...
mysql>showvariableslike'%lower_case%';+---+---+|Variable_name|Value|+---+---+|lower_case_file_system|OFF||lower_case_table_names|1|+---+---+2rowsinset(0.03sec)mysql>createdatabaseUSER_DB;QueryOK,1rowaffected(0.01sec)mysql>createdatabaseuser_db;ERROR1007(HY000):Cantcreatedatabase'...
Anyone can give on how to create a table on MySQL database information_schema? use information_schema; CREATE TEMPORARY TABLE `TEST` ( `TEST_DESC` varchar(512) NOT NULL DEFAULT '', `TEST_CREATE_TIME` datetime DEFAULT NULL, `TEST_UPDATE_TIME` datetime DEFAULT NULL, `TEST_CHECK_...
MySQL improves security, scalablity, developer productivity and performance for web, mobile, embedded and Cloud applications.MySQL delivers:Transactional Data Dictionary implemented as a set of SQL tables stored in a single InnoDB tablespace. Common Table Expressions also known as WITH queries. Window ...
WHERE TABLE_SCHEMA = 'sxey' AND TABLE_NAME in ('prescription_medicine','prescription_medicine_new','DEPT_INFO'); -- 创建执行函数 DROP PROCEDURE IF EXISTS exe_query_queue; delimiter $$ CREATE PROCEDURE exe_query_queue(IN tbName varchar(100),IN colNameId varchar(100),IN colNameExe varchar...
在mysql中,create table和create database关系是什么?精慕HU 浏览1027回答3 3回答 米琪卡哇伊 1、建立一个表,不是建立一个数据库原因:(1)用处不同:表用来存储数据,数据库用来存储表;数据库可只含一个表;也可含多表。(2)创建命令不同:create table(创建表的命令);create database(创建数据库的命令)。(3)...
Show table indexes. --login-path=name Command-Line Format --login-path=name Type String Read options from the named login path in the .mylogin.cnf login path file. A “login path” is an option group containing options that specify which MySQL server to connect to and which account to...
Table of Contents How To Create a Database? How to Create a User? How to Assign a User to a Database? How to manage user privileges to a MySQL database? This tutorial explains how to create a new MySQL user and database. Video tutorial: How To Create a Database? Go to Site ...
MySQL delivers: Transactional Data Dictionaryimplemented as a set of SQL tables stored in a single InnoDB tablespace. Common Table Expressionsalso known as WITH queries. Window Functionsto reduce code complexity and help developers be more productive. ...