mysql rename table column

Rename table syntaxRename table Tbl_name to New_tbl_name [, tbl_name2 to New_tbl_name2] ... Use this statement to rename one or more tables. The rename operation occurs automatically, which means that other threads cannot read any tables while

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

ALTER TABLE Syntax ALTER [IGNORE] TABLE tbl_name alter_spec [, Alter_spec ...] Alter_specification:ADD [COLUMN] create_definition [i | After column_name]or ADD [COLUMN] (create_definition, create_definition,...)or ADD INDEX [index_name] (Index_col_

This article mainly introduces the method of modifying the table structure in mysql, and analyzes in detail the methods and precautions for modifying the table structure in mysql in the form of instances, which has some reference value, for more

When creating a table, MySQL creates a. frm file to save the table and column definitions. Indexes are stored in a file with the. MYI (MYindex) Extension and data is stored in a file with the. MYD (MYData) extension. 1. Use the SHOW/DESCRIBE

MySQL creates a table and creates a . frm file to save the table and column definitions. The index is stored in one . MYI (Myindex) and the data is stored in the . MYD (MYData) file extension. First, using Show/describe statement to display the data

How to delete, modify, and rename a column bitsCN.com in SQLite Today, I added a column to the SQLite database. later I found that the column name was wrong. so I used an SQL statement to modify the column name, but it didn't work. First,

CREATE TABLE tab2 as (SELECT * from TAB1)The storage engine for this practice table also uses the server's default storage engine instead of the source table's storage engine, which copies the contents of the table together.CREATE talbe tab2

About MySQLMySQL is an open source small relational database management system, the developer of the Swedish MySQL AB company. MySQL is widely used in small and medium-sized websites on the internet. Because of its small size, fast speed, low total

The following articles mainly describe the actual operations of modifying the alter TABLE structure in MySQL. If you are interested in the actual operations of modifying the alter TABLE structure in MySQL, you can browse the following articles, the