alter database name mysql

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MySQL database ALTER command explanation, MySQL ALTER command explanation

MySQL database ALTER command explanation, MySQL ALTER command explanation MySQL is a Relational Database Management System. This so-called "Relational" can be understood as "tables". A Relational Database consists of one or more tables. When we need

MySQL database ALTER command description _ MySQL

MySQL is a relational database (RelationalDatabaseManagementSystem ). This article focuses on the alert commands of the mysql Database. This article is very detailed and has reference value. if you are interested, join us and learn that MySQL is a

MySQL alter command use detailed _mysql

ALTER TABLE allows you to modify the structure of an existing table. For example, you can add or delete columns, create or eliminate indexes, change the type of existing columns, or rename columns or the table itself. You can also change the

MySQL Common instructions, java,php programmers, database engineers must. Programmers Xiaoice Common Data collation

MySQL常用指令,java,php程序员,数据库工程师必备。程序员小冰常用资料整理MySQL common commands (for reference)The most common display commands are:1. Display the list of databases.show databases;2. Display the data table in the library:Use MySQL;Show tables;3, display the

Usage of the ALTER command in MySQL _ MySQL

This article mainly introduces how to use the ALTER command in MySQL, which is the basic knowledge in MySQL beginners. it is very useful for anyone who needs it to refer to the ALTER command in MySQL, if you want to change the table name, table

Detailed description of the use of the ALTER command in MySQL, mysqlalter

Detailed description of the use of the ALTER command in MySQL, mysqlalter MySQL's ALTER command is very useful when you want to change the table name, table fields, or if you want to add or delete columns in an existing table. Let's start to create

Detailed usage of ALTER command in Mysql _mysql

MySQL's alter command is very useful when you want to change the name of the table, the field of the table, or if you want to add or delete columns from an existing table. Let's start by creating a use case with a table named Testalter_tbl:

MySQL ALTER and mysqlalter

MySQL ALTER and mysqlalter When we need to modify the data table name or field, we need to use the MySQL ALTER command. Before starting this chapter, let's create a table named testalter_tbl. root@host# mysql -u root -p password;Enter password:******

Basic usage of ALTER TABLE command in MYSQL and speed-increasing optimization _mysql

First, basic usage 1. Add Column ALTER TABLE Tbl_name add col_name type For example, add a column of weight to the pet table, Mysql>alter table Pet Add weight int; 2. Delete Column ALTER TABLE Tbl_name drop col_

Mysql exercise Alter usage summary _ MySQL

Mysql exercise Alter usage summary bitsCN.com Mysql exercise Alter usage summary Alert usage summary: Alter database syntax Alter database is used to change the global features of a DATABASE. These features are stored in the db. opt file in the

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