MySQL 存储过程 定时任务

drop procedure if exists move_track_data;
delimiter //
create procedure move_track_data()
begin
    declare i int default 0;
    start transaction;
    set i = 1;
    case
        when i = 1 then
            select ‘is 1‘;
        when i = 2 then
            select ‘is 2‘;
        else
            select ‘is 3‘;
    end case;
    commit;
end;
//

call move_track_data();
delimiter ;
select * from score_driving_track where trackid in( select trackid from score_driving_track where trackid % 10 = 1);

insert into score_driving_track_0 select * from score_driving_track where trackid in( select trackid from score_driving_track where trackid % 10 =0);

####################################################################################################3

set time_zone = ‘+8:00‘;
set GLOBAL event_scheduler = 1;
use test;
drop event if exists upload_to_sdmp;
DELIMITER //
create event upload_to_sdmp
on schedule every 1 week starts timestamp ‘2015-10-12 02:00:00‘
do call move_score_driving_track_data();

drop procedure if exists move_score_driving_track_data;
delimiter //
create procedure move_score_driving_track_data()
begin
    declare i int default 0;
    declare t_error integer default 0;
    declare continue handler for sqlexception set t_error = 1;
    start transaction;
    set i = 0;
    while i < 10 do
        set @sqlTrackids = concat(‘select group_concat(distinct trackid) into @trackids  from score_driving_track where trackid % 10 = ‘, i);
        select @sqlTrackids;
        prepare sqlTrackidsNormal from @sqlTrackids;
        execute sqlTrackidsNormal;
        select @trackids;

        set @sqlInsert = concat(‘insert into score_driving_track_‘, i,  ‘ select * from score_driving_track where find_in_set(trackid, ‘‘‘, @trackids, ‘‘‘)‘);
        select @sqlInsert;
        prepare sqlInsertNormal from @sqlInsert;
        execute sqlInsertNormal;

        set @sqlDelete = concat(‘delete from score_driving_track‘, ‘ where find_in_set(trackid ,‘‘‘, @trackids, ‘‘‘)‘);
        select @sqlDelete;
        prepare sqlDeleteNormal from @sqlDelete;
        #execute sqlDeleteNormal;

        set i = i + 1;
    end while;
    if t_error = 1 then
       rollback;
    else
       commit;
    end if;
end;
//
call move_score_driving_track_data();
SELECT @@global.sort_buffer_size;

select * from score_driving_track where trackid >= 2270;
select * from score_driving_track_0;
select * from score_driving_track_1;
select * from score_driving_track_2;
select * from score_driving_track_3;
select * from score_driving_track_4;
select * from score_driving_track_5;
select * from score_driving_track_6;
select * from score_driving_track_7;
select * from score_driving_track_8;
select * from score_driving_track_9;

delete from score_driving_track_0;
delete from score_driving_track_1;
delete from score_driving_track_2;
delete from score_driving_track_3;
delete from score_driving_track_4;
delete from score_driving_track_5;
delete from score_driving_track_6;
delete from score_driving_track_7;
delete from score_driving_track_8;
delete from score_driving_track_9;

SET GLOBAL group_concat_max_len=1024000; 

show variables like "group_concat_max_len";
#####################################################################################

call move_score_driving_track_data();
SELECT @@global.sort_buffer_size;

SET GLOBAL group_concat_max_len=1024000; 

show variables like "group_concat_max_len"; 

select group_concat(distinct trackid)  from score_driving_track where trackid % 10 = 0;
SELECT @@global.group_concat_max_len;
show warnings;
#[mysqld]
#explicit_defaults_for_timestamp=true
#group_concat_max_len=102400
select distinct trackid  from score_driving_track where trackid % 10 = 0;

select group_concat(distinct trackid)  from score_driving_track where trackid % 10 = 0 and trackid < 50;

delimiter ;
select concat(‘score_driving_track_‘, 1);

select * from score_driving_track_0;

delete from score_driving_track_0;

##############################################################################
set time_zone = ‘+8:00‘;
set GLOBAL event_scheduler = 1;
use test;
drop event if exists upload_to_sdmp;
DELIMITER //
create event upload_to_sdmp
on schedule every 1 second #starts timestamp ‘2014-07-30 10:00:00‘
do
begin
    insert into b values(3,‘222‘);
    insert into b values(2,‘222‘);
end
//
DELIMITER ;  

select * from b;

select group_concat(trackid) into @temp  from score_driving_track where trackid < 100;
select @temp;
select * from score_driving_track where find_in_set(trackid, @temp);
select REPLACE(@temp,‘‘‘‘‘‘‘‘,‘‘);

select CHAR_LENGTH(@temp)-CHAR_LENGTH(REPLACE(@temp,‘‘,‘‘)) + 1;

select * from score_driving_track where trackid in (select group_concat(trackid)  from score_driving_track where trackid < 50);

select * from score_driving_track where find_in_set(trackid, (select group_concat(distinct trackid)  from score_driving_track where trackid < 50));

select * from users;