How to parse MYSQL display table information

When using mysql (show tables), you sometimes need to view the table and field information (whether the table and a field exist .)~~ PHP provides such related functions, such as mysql_list_dbs () and mysql_list_fields (), but the mysql_list_fields () functions are outdated. Therefore, you must use the show... SQL command to search for them.

SHOW command (optional in)
# Display names of all databases in mysql
Show databases;
# Display related tables in mysql
Show tables [from db_name]
# Display the table status information of a data table
Show table status
# Viewing the Stored Procedure status
Show procedure status
# List complete table field attributes
Show full fields from tbl_name
# Show the column names in the table
Show columns from table_name [from database_name]; or show columns from database_name.table_name;
# Display the permissions of a user. The result is similar to the grant command.
Show grants for user_name;
# List table Indexes
Show index from tbl_name
# Display table Indexes
Show index from table_name
# Display information about specific system resources, such as the number of running threads
Show status [from db_name]
# Display the name and value of the system variable
Show [global] variables
# Display all processes running in the system, that is, the query currently being executed. Most users can view their own processes, but if they have the process permission, they can view all processes, including Password
Show processlist
# Display the information of each table in the currently used or specified database, including the table type and the latest update time of the table
Show table status
# Display different permissions supported by the server
Show privileges
# Whether the create database statement can create a specified database
Show create database database_name
# Whether the create database statement can create a specified database
Show create table table_name
# Display available storage engines and default engines after installation
Show engies
# Display the innoDB Storage engine status
Show innodb status
# Display BDB storage engine logs
Show logs ----- This is abandoned
# Display errors, warnings, and notifications generated by the last executed statement
Show warnings
# Only display Errors generated by the last statement.
Show errors
# Display available storage engines and default engines after installation
Show [storage] engines;
========================================================== ================================
Mysqlshow. This command only displays information about databases, tables, and columns.
For example, mysqlshow-uroot-pXXXX mysql # displays mysql database information
For example, mysqlshow-uroot-pXXXX mysql user # displays the user table information in the mysql database.
For example, mysqlshow-uroot-pXXXX mysql user # displays information about the user column in the user table of the mysql database.