mysql show table columns

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

Development Log: Add comments for tables and columns when creating a table in mySQL, and view comments for tables and columns. Development Log: add notes for tables and columns when creating a mySQL table, and view the notes for tables and columns _

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

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

Show DATABASES: lists the DATABASES on the mysql Server. Show tables [FROM db_name]: Lists TABLES in a database. Show table status [FROM db_name]: lists the TABLE information of a database. Show columns from tbl_name [FROM db_name]: lists the column

MySQL adds, modifies, and deletes TABLE columns and constraints. TABLE definitions such as bitsCN. comALTER TABLE: adds, modifies, and deletes TABLE columns and constraints. View column: desc table name; Alter table t_book rename to bbb; Add column:

ALTER table: Add, modify, delete table columns, constraints, and other table definitions. View column: Desc table name; Modify table name: ALTER TABLE T_book Rename to BBB; Add column: ALTER TABLE name add column name varchar (30); Delete column:

Original source: MySQL 5.5 Reference ManualPart of the translation: "mysql_5.1 Chinese reference Manual"Reprint please specify the original link http://www.cnblogs.com/lenagt/archive/2012/06/06/2538201.html Thank you.---------------------------------

System LockShow processlistStatus entries in Show Processlist output: 5.1 None of the manuals, or the translation of the problem, are accompanied by 5.5 original description:After createThis occurs when the thread creates a table (including internal

mysql| Security | Security as a MySQL system administrator, you are responsible for maintaining the data security and integrity of your MySQL database system. This article mainly describes how to build a secure MySQL system, from the system internal