Common tasks for MySQL

1. Copy Database db_name1 to db_name2 in same MySQL instance

 

1. mysqldump db_name1 -u root -pYourPassword | mysql db_name2 -u root -pYourPassword  

 

2. Backup Database

 

1. mysqldump -u root -pYourPassword --database db_name | gzip > db_name_140828.sql.gz   

 

3. Restore Database

 

1. gunzip < db_name_140828.sql.gz | mysql -u root -pYourPassword db_name  

 

4. Change the column position

 

1. ALTER TABLE table_name MODIFY password varchar(20) AFTER id  

 

5. Rename table

1. RENAME TABLE  tbl_name1 TO tbl_name2;  

 

6. Export Table and Import Table

1. mysqldump -u root -pYourPassword DBName TableName  > TableName.sql  

2. mysql -u root -pYourPassword DBName < TableName.sql