Mysql-timed call of stored procedures, mysql-stored procedures

Mysql-timed call of stored procedures, mysql-stored procedures

Mysql regularly calls the stored procedure to back up the table structure.

Stored Procedure instance:

CREATE PROCEDURE backUpSms()BEGINDECLARE tname varchar(64);set @tname = CONCAT('sms_accpet',DATE_FORMAT(NOW(),'%Y%m'));set @rname = CONCAT('create table ',@tname,' select * from sms_accpet');PREPARE create_table from @rname;EXECUTE create_table;delete from sms_accpet;

Timer instance

CREATE EVENT EVENT_SMS    ON SCHEDULE EVERY 1 MONTH STARTS DATE_ADD(DATE_ADD(DATE_SUB(CURDATE(),INTERVAL DAY(CURDATE())-1 DAY), INTERVAL 1 MONTH),INTERVAL 1 HOUR)  ON COMPLETION PRESERVE ENABLE  DO CALL backUpSms();

Reference website:

Stored Procedure:

Http://blog.csdn.net/youngqj/article/details/6936632
Http://blog.csdn.net/sun886/article/details/7992935

Timer:

Http://www.cnblogs.com/gaizai/archive/2012/12/24/2831315.html

Http://lobert.iteye.com/blog/1953827

1. copy the TABLE structure and data to the new table create table new table select * FROM old TABLE 2. only copy the TABLE structure to the new table create table new table select * FROM old table where 1 = 2 that is: Make the WHERE condition not true. method 2: (mysql of earlier versions is not supported, mysql 4.0.25 is not supported, and mysql 5 is supported) create table new table like old TABLE 3. copy the data FROM the old table to the new table (assuming the two tables have the same structure) insert into the new table SELECT * FROM the old table 4. copy the data from the old table to the new table (assuming the two tables have different structures) insert into the new table (Field 1, Field 2 ,.......) SELECT Field 1, Field 2 ,...... FROM old table

Sample extraction

Execute create event event_call_defer on schedule every 1 day starts date_add (date (curdate () + 1), interval 3 hour) on completion preserve enable do begin call test every three o'clock. warn (); end: Execute create event EVENT2 on schedule every 1 month starts DATE_ADD (DATE_SUB (CURDATE (), interval day (CURDATE () at each MONTH ()) -1 DAY), INTERVAL 1 MONTH), INTERVAL 1 HOUR) on completion preserve enable do begin call stat (); END execute create event TOTAL_SEASON_EVENT on schedule every 1 quarter starts DATE_ADD (DATE (CONCAT (YEAR (CURDATE ()),'-', ELT (QUARTER (CURDATE (),), '-', 1), INTERVAL 1 QUARTER), INTERVAL 2 HOUR) on completion preserve enable do begin call SEASON_STAT (); END execute create event TOTAL_YEAR_EVENT on schedule every 1 year starts DATE_ADD (DATE (CONCAT (YEAR (CURDATE () at ON January 1, January 1 EVERY YEAR ()) + 1, '-', 1, '-', 1), INTERVAL 4 HOUR) on completion preserve enable do begin call YEAR_STAT (); END