Mysql database commands

MySQL Database command

mysql Overview of operation commands ：

mysql Database command ：

Login command

grammar ：

mysql -h host -u userName -p

-h： Database to connect to ip, If it is this machine, you can not fill

-u： Database user name

-p: Database password

Table operation command

Database table commands ：

• Add table fields
• Modify table fields
• Delete table fields

Add table fields

grammar ：

alter table tableName（ Table name ）
add( Field )

Modify table fields

grammar ：

alter table tableName（ Table name ）
modify  Field 

Delete table fields

grammar ：

alter table tableName（ Table name ）
drop column   Field 

Export import

export ：

• Database table structure and data export
• Database table structure export
• Table structure export
• Table structure and data export

Import ：

export

export ：

• Database table structure and data export
• Database table structure export
• Table structure export
• Table structure and data export

Database table structure and data export

Do not log in to the database , Just run the command directly in the window

#  grammar 
mysqldump -h  Target data ip -u  Database user name  -p  password （ Don't count , Enter after entering ）-d （ No data ）--add-drop-table( At every create Add one before drop table)  Database name  > xxx.sql

Database table structure export

#  grammar 
mysqldump -h  Target data ip -u  Database user name  -p  password （ Don't count , Enter after entering ）-d （ No data ）--add-drop-table( At every create Add one before drop table)  Database name  > xxx.sql

Table structure export

#  grammar 
mysqldump -h  Target data ip -u  Database user name  -p  password （ Don't count , Enter after entering ）-d （ No data ）--add-drop-table( At every create Add one before drop table)  Database name   Table name > xxx.sql

Table structure and data export

#  grammar 
mysqldump -h  Target data ip -u  Database user name  -p  password （ Don't count , Enter after entering ）-d （ No data ）--add-drop-table( At every create Add one before drop table)  Database name   Table name > xxx.sql