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#檢測事件是否開啟
show variables like 'event_scheduler';
#開啟事件(最好在my.init設置,因為重啟后還會變回默認值OFF)
set global event_scheduler = on;
#創建事件(從11月24號開始每天執行一次)
create EVENT eve_createTable ON SCHEDULE EVERY 1 DAY STARTS '2016-11-24 00:00:00' ON COMPLETION PRESERVE ENABLE DO CALL pro_createTable();
注:
1、ON
COMPLETION PRESERVE ENABLE 是創建此事件即開始自動執行
2、SCHEDULE EVERY 1 DAY STARTS '2016-11-24 00:00:00' 從指定時間開始每天執行一次
#創建存儲過程(動態表名)
CREATE PROCEDURE pro_createTable() BEGIN DECLARE str VARCHAR(20000); set str= CONCAT('CREATE TABLE member_network_',DATE_FORMAT(now(),'%Y%m%d'),'( `id` bigint(20) NOT NULL AUTO_INCREMENT , `member_id` bigint(20) NULL DEFAULT NULL , `host_ip` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL , `serv_crc` varchar(2000) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL , `app_crc` varchar(200) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL , `sync_time` timestamp NULL DEFAULT NULL , `online_time` datetime NULL DEFAULT NULL , `type` varchar(500) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL , `up_stream_flux` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL , `down_stream_flux` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL , `total_stream_flux` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL , `line_no` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL , `url` text CHARACTER SET utf8 COLLATE utf8_general_ci NULL , `action` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL , `sev_port` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL , `sor_port` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL , `protocol` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL , `regionCode` varchar(500) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `memo` varchar(500) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL , `policy` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL , `dns` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL , `name` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL , `idcard` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `client_name` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, PRIMARY KEY (`id`), INDEX `dept_type` (`regionCode`(255), `serv_crc`(255), `online_time`, `name`, `type`(255)) USING BTREE ) ENGINE=InnoDB DEFAULT CHARACTER SET=utf8 COLLATE=utf8_general_ci AUTO_INCREMENT=1 ROW_FORMAT=COMPACT '); SET @sqlstr=str; PREPARE stmt from @sqlstr; EXECUTE stmt; deallocate prepare stmt; END;
執行時報錯,因為CONCAT拼接超過最大值;
#sql語句查看該參數,修改并重啟mysql
show VARIABLES like '%max_allowed_packet%'; set global max_allowed_packet = 25600
mysql的前天、今天、后天
#2016-12-09 DATE_FORMAT(date_sub(curdate(),interval 1 day),'%Y%m%d') #2016-12-10 DATE_FORMAT(date_sub(curdate(),interval 0 day),'%Y%m%d') #2016-12-11 DATE_FORMAT(date_sub(curdate(),interval -1 day),'%Y%m%d')
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