Mysql database large table archiving operation

Since a certain system data sheet of the company exceeds 100 million, considering the pressure of the data sheet. So according to a certain point in time the data table is archived. The following operation is to create a new table in the current database to store historical data, and then perform a cleanup operation on the production table. Archived data can be placed on a new database server if possible. (The specific table name and time node can be modified according to your needs)

 

Archive sql:

 Method 1: Copy the table and insert data according to the conditions (this method does not include other indexes except the primary key index)

 

[sql]  view plain copy  

 

1. CREATE TABLE lime_survey_549656_20151001 as select * from lime_survey_549656  where submitdate < "2015-10-01 00:00:00";  
2.    
3. ALTER TABLE lime_survey_549656_20151001 change id id int primary key auto_increment;  
4.    
5. CREATE TABLE lime_survey_186194_20151001 as select * from lime_survey_186194 where submitdate < "2015-10-01 00:00:00";  
6.    
7. ALTER TABLE lime_survey_186194_20151001 change id id int primary key auto_increment;  
8.    
9. CREATE TABLE lime_survey_279575_20151001 as select * from lime_survey_279575 where submitdate < "2015-10-01 00:00:00";  
10.    
11. ALTER TABLE lime_survey_279575_20151001 change id id int primary key auto_increment;  

 

Method 2: Create an empty table with the same structure and index as the original table

 

[sql]  view plain copy  

 

1. create table lime_survey_549656_20151001 like lime_survey_549656;   
2. INSERT INTO lime_survey_549656_20151001 select * from lime_survey_549656  where submitdate < "2015-10-01 00:00:00";  
3.   
4. create table lime_survey_186194_20151001 like lime_survey_186194;   
5. INSERT INTO lime_survey_186194_20151001 select * from lime_survey_186194  where submitdate < "2015-10-01 00:00:00";  
6.   
7. create table lime_survey_279575_20151001 like lime_survey_279575;   
8. INSERT INTO lime_survey_279575_20151001 select * from lime_survey_279575  where submitdate < "2015-10-01 00:00:00";  

 

After the data is archived successfully, clean up the data sql:

[sql]  view plain copy  

 

1. delete from lime_survey_549656  where submitdate < "2015-10-0100:00:00";  
2.    
3. delete from lime_survey_186194  where submitdate < "2015-10-0100:00:00";  
4.    
5. delete from lime_survey_279575  where submitdate < "2015-10-0100:00:00";  

 

Copyright statement: This article is an original article by the blogger and may not be reproduced without the blogger's permission. https://blog.csdn.net/bluestarf/article/details/49641047