您好我们正在使用以下SP，它占用100％的CPU利用率，需要很长时间才能执行SP， 如何改进此存储过程
此过程有许多连接和内部连接
CREATE DEFINER=`root`@`%` PROCEDURE `get_tp`(
IN loggedInUser varchar(100),IN mName varchar(100),
IN meName varchar(200), IN deviceType varchar(50),
IN deviceName varchar(50),IN pS varchar(100),
IN lp varchar(100), IN segtype varchar(100),
IN PT varchar(100), IN CID varchar(50),
IN FID varchar(50), IN clliCodeIn varchar(500),
IN startIndex INT, IN endIndex INT,
IN columnindex INT, IN sortorder INT,
OUT rowcount INT)
BEGIN
DECLARE ccount INT;
DECLARE ecount INT;
DECLARE mcount1 INT;
DECLARE mcount2 INT;
DECLARE MTID INT;
IF startIndex IS NULL THEN
SET startIndex = 0;
END IF;
IF endIndex IS NULL THEN
SET endIndex = 10;
END IF;
IF meName IS NULL THEN
set meName = '';
END IF;
IF pS IS NULL THEN
set pS = '%';
END IF;
IF PT IS NULL THEN
set PT = '';
END IF;
IF deviceName IS NULL THEN
set deviceName = '%';
END IF;
IF lp IS NULL THEN
set lp = '%';
END IF;
IF deviceType IS NULL THEN
set deviceType = '%';
END IF;
IF FID IS NULL || FID = '' THEN
set FID = '%';
ELSE
set FID = CONCAT('%',FID,'%');
END IF;
IF clliCodeIn IS NULL OR '' THEN
SET clliCodeIn = '%';
END IF;
SELECT id INTO MTID from m_desc where m_name =mName;
SET segtype = '%';
SELECT distinct me.elementName, tp.elementName, dtp.device_type, dtp.device_name,
tpt.maxBw,IF(STRCMP(tpt.CKT_used,'null'),tpt.CKT_used,'0'),
IF(STRCMP(tpt.CKT_res,'null'),tpt.CKT_res,'0'),
IF(STRCMP(tpt.PKT_use,'null'),tpt.PKT_use,'0'),
IF(STRCMP(tpt.packet_reservedbw,'null'),tpt.PKT_res,'0'),tp.type,
G_M_E_T(me.elementName) as segmentType, tpt.niType,dtp.id,get_derived_managed_element_type(me.elementName),mtc.cllicode
FROM metro_detail md
INNER JOIN me1 me ON md.node_clli = me.elementName
INNER JOIN t_p1 tp ON tp.id_M_Ele = me.id_M_Ele
INNER JOIN esystem ON esystem.idesystem = me.idesystem and esystem.type LIKE CONCAT(segtype)
LEFT JOIN t_p_a tpt ON tp.elementName = tpt.tpName AND me.elementName = tpt.neName
LEFT OUTER JOIN d_t_m dtp ON dtp.me1 = me.elementName AND dtp.ter_pt = tp.elementName
LEFT JOIN m_e_tp_cl mtc ON (mtc.idChassis = tp.chassisId AND mtc.idm_e_tp_cl = tp.id_M_Ele)
WHERE tpt.maxBW > 0 AND
tpt.provisionableState = 1 AND
CONCAT(me.elementName,tp.elementName) NOT IN (SELECT CONCAT(exit_node,exit_node_tp)
FROM m_tp_i
WHERE met_id = MTID) AND
CONCAT(me.elementName,tp.elementName) NOT IN (SELECT CONCAT(entry_node,entry_node_tp)
FROM m_tp_i
WHERE met_id = MTID) AND
CONCAT(me.elementName,tp.elementName) NOT IN (SELECT CONCAT(a_ne_m1,a_end_m1)
FROM e_s
WHERE product = 'PROD_H') AND
CONCAT(tp.elementName,me.elementName) NOT IN (SELECT CONCAT(ev.a_end, ev.a_ne)
FROM e_seg ev
INNER JOIN e_s e ON e.CirID=ev.CirID
WHERE tpt.niType = "TP_U" AND e.cust_id!=CID) AND
CONCAT(tp.elementName,me.elementName) NOT IN (SELECT CONCAT(ev.z_end, ev.z_ne)
FROM e_seg ev
INNER JOIN e_s e ON e.CirID=ev.CirID
WHERE tpt.niType = "TP_U" and e.cust_id!=CID) AND
md.met_id = MTID AND
tp.type != 'TPT_CTP' AND
me.elementName COLLATE latin1_general_cs LIKE CONCAT('%',meName,'%') AND
tpt.maxBw COLLATE latin1_general_cs LIKE CONCAT(pS) AND
tpt.niType COLLATE latin1_general_cs LIKE CONCAT ('%',PT,'%') AND
tp.type COLLATE latin1_general_cs LIKE CONCAT(lp) AND
IF(STRCMP(deviceName,'%'),dtp.device_name COLLATE latin1_general_cs
LIKE CONCAT(deviceName),dtp.device_name IS NULL OR dtp.device_name IS NOT NULL) AND
IF(STRCMP(deviceType,'%'),dtp.device_type COLLATE latin1_general_cs
LIKE CONCAT(deviceType),dtp.device_type IS NULL OR dtp.device_type IS NOT NULL) AND
IF(STRCMP(FID,'%'),dtp.id COLLATE latin1_general_cs
LIKE CONCAT(FID),dtp.id IS NULL OR dtp.id IS NOT NULL) AND
IF(STRCMP(clliCodeIn,'%'),mtc.cllicode COLLATE latin1_general_cs
LIKE CONCAT('%',clliCodeIn,'%'),mtc.cllicode IS NULL OR mtc.cllicode IS NOT NULL)
ORDER BY tpt.niType DESC, me.elementName
LIMIT startIndex, endIndex;
SELECT count(*) INTO rowcount
FROM metro_detail md
INNER JOIN me1 me ON md.node_clli = me.elementName
INNER JOIN t_p1 tp ON tp.id_M_Ele = me.id_M_Ele
INNER JOIN esystem ON esystem.idesystem = me.idesystem AND esystem.type LIKE CONCAT(segtype)
LEFT JOIN t_p_a tpt ON tp.elementName = tpt.tpName AND me.elementName = tpt.neName
LEFT OUTER JOIN d_t_m dtp ON dtp.me1 = me.elementName AND dtp.ter_pt = tp.elementName
LEFT JOIN m_e_tp_cl mtc ON (mtc.idChassis = tp.chassisId AND mtc.idm_e_tp_cl = tp.id_M_Ele)
WHERE tpt.maxBW > 0 AND
tpt.provisionableState = 1 AND
CONCAT(me.elementName,tp.elementName) NOT IN (SELECT CONCAT(exit_node,exit_node_tp)
FROM m_tp_i
WHERE met_id = MTID) AND
CONCAT(me.elementName,tp.elementName) NOT IN (SELECT CONCAT(entry_node,entry_node_tp)
FROM m_tp_i
WHERE met_id = MTID) AND
CONCAT(me.elementName,tp.elementName) NOT IN (SELECT CONCAT(a_ne_m1,a_end_m1)
FROM e_s
WHERE product = 'PROD_H') AND
CONCAT(tp.elementName,me.elementName) NOT IN (SELECT CONCAT(ev.a_end, ev.a_ne)
FROM e_seg ev
INNER JOIN e_s e ON e.CirID=ev.CirID
WHERE tpt.niType = "TP_U" AND e.cust_id!=CID) AND
CONCAT(tp.elementName,me.elementName) NOT IN (SELECT CONCAT(ev.z_end, ev.z_ne)
FROM e_seg ev
INNER JOIN e_s e ON e.CirID=ev.CirID
WHERE tpt.niType = "TP_U" AND e.cust_id!=CID) AND
md.met_id = MTID AND
tp.type != 'TPT_CTP' AND
me.elementName COLLATE latin1_general_cs LIKE CONCAT('%',meName,'%') AND
tpt.maxBw COLLATE latin1_general_cs LIKE CONCAT(pS) AND
tpt.niType COLLATE latin1_general_cs LIKE CONCAT ('%',PT,'%') AND
tp.type COLLATE latin1_general_cs LIKE CONCAT(lp) AND
IF(STRCMP(deviceName,'%'),dtp.device_name COLLATE latin1_general_cs
LIKE CONCAT(deviceName),dtp.device_name IS NULL OR dtp.device_name IS NOT NULL) AND
IF(STRCMP(deviceType,'%'),dtp.device_type COLLATE latin1_general_cs
LIKE CONCAT(deviceType),dtp.device_type IS NULL OR dtp.device_type IS NOT NULL) AND
IF(STRCMP(FID,'%'),dtp.id COLLATE latin1_general_cs
LIKE CONCAT(FID),dtp.id IS NULL OR dtp.id IS NOT NULL) AND
IF(STRCMP(clliCodeIn,'%'),mtc.cllicode COLLATE latin1_general_cs
LIKE CONCAT('%',clliCodeIn,'%'),mtc.cllicode IS NULL OR mtc.cllicode IS NOT NULL) ;
CREATE TABLE `me1` (
`id_M_Ele` int(11) NOT NULL AUTO_INCREMENT,
'idesystem' int(11) DEFAULT NULL,
`elementName` varchar(200) DEFAULT NULL,
`productName` varchar(200) DEFAULT NULL,
PRIMARY KEY (`id_M_Ele`),
UNIQUE KEY `idesystem_elementName_UNIQUE` (`idesystem`,`elementName`),
KEY `fk_me_ems` (`idesystem`),
KEY `index_ME` (`idesystem`,`id_M_Ele`,`elementName`,`productName`),
CONSTRAINT `fk_me_ems` FOREIGN KEY (`idesystem`)
REFERENCES `esystem` (`idesystem`) ON DELETE CASCADE ON UPDATE NO ACTION
) ENGINE=InnoDB AUTO_INCREMENT=45706 DEFAULT CHARSET=latin1
CREATE TABLE `t_p1` (
`idtp` int(11) NOT NULL AUTO_INCREMENT,
`id_M_Ele` int(11) DEFAULT NULL,
`chassisId` int(11) NOT NULL,
`elementName` varchar(200) DEFAULT NULL,
`ctpName` varchar(255) DEFAULT NULL,
`type` enum(''TPT_PTP'',''TPT_CTP'',''TPT_FTP''),
`provisionableState` tinyint(1) DEFAULT NULL,
`niType` enum(''TPT_UNI'',''TPT_NNI'') DEFAULT NULL,
PRIMARY KEY (`idtp`),
UNIQUE KEY `id_M_Ele_elementName_ctpValue_UNIQUE` (`id_M_Ele`,`elementName`,`ctpName`),
KEY `fk_tp_me_tp` (`id_M_Ele`),
KEY `index_TP` (`elementName`,`chassisId`,`id_M_Ele`),
CONSTRAINT `fk_tp_me_tp` FOREIGN KEY (`id_M_Ele`)
REFERENCES `me1` (`id_M_Ele`) ON DELETE CASCADE ON UPDATE NO ACTION
) AUTO_INCREMENT=8690591 DEFAULT CHARSET=latin1
'CREATE TABLE `t_p_a` (
`idesystem` int(11) NOT NULL,
`neName` varchar(200) NOT NULL,
`tpName` varchar(200) NOT NULL,
`provisionableState` tinyint(1) DEFAULT NULL,
`niType` enum(''TP_U'',''TP_N'') DEFAULT NULL,
`maxBW` bigint(20) DEFAULT NULL,
`CKT_use` bigint(20) DEFAULT NULL,
`CKT_res` bigint(20) DEFAULT NULL,
`PKT_use` bigint(20) DEFAULT NULL,
`PKT_res` bigint(20) DEFAULT NULL,
PRIMARY KEY (`idesystem`,`neName`,`tpName`),
KEY `index_TPA` (`tpName`,`neName`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1'
'CREATE TABLE `d_t_m` (
`id` varchar(255) NOT NULL,
`me1` varchar(200) NOT NULL,
`ter_pt` varchar(200) NOT NULL,
`device_type` varchar(25) NOT NULL,
`device_name` varchar(50) NOT NULL,
`device_id` int(11) unsigned NOT NULL,
PRIMARY KEY (`id`),
KEY `FK_d_t_m_1` (`device_id`,`device_type`),
KEY `index_DTP` (`me1`,`ter_pt`),
CONSTRAINT `FK_d_t_m_1` FOREIGN KEY (`device_id`, `device_type`)
REFERENCES `device_type` (`id`, `device_type`)
ON DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC'
CREATE TABLE `m_e_tp_cl` (
`idm_e_tp_cl` int(11) NOT NULL,
`idChassis` int(11) NOT NULL,
`cllicode` varchar(255) NOT NULL,
PRIMARY KEY (`idm_e_tp_cl`,`idChassis`),
KEY `fk_id_managed_element` (`idm_e_tp_cl`),
CONSTRAINT `fk_id_managed_element` FOREIGN KEY (`idm_e_tp_cl`)
REFERENCES `me1` (`id_M_Ele`) ON DELETE CASCADE ON UPDATE NO ACTION
) ENGINE=InnoDB DEFAULT CHARSET=latin1
CREATE TABLE `m_tp_i` (
`id` int(10) NOT NULL AUTO_INCREMENT,
`met_id` int(11) DEFAULT NULL,
`exit_node` varchar(200) DEFAULT NULL,
`entry_node` varchar(200) DEFAULT NULL,
`exit_node_tp` varchar(200) DEFAULT NULL,
`entry_node_tp` varchar(200) DEFAULT NULL,
`link_name` varchar(45) NOT NULL,
PRIMARY KEY (`id`,`link_name`),
KEY `FK_metro_terminationpoint_info_1` (`met_id`),
CONSTRAINT `FK_metro_terminationpoint_info_1` FOREIGN KEY (`met_id`)
REFERENCES `metro_description` (`id`)
ON DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
CREATE TABLE `e_s` (
`CirID` varchar(255) NOT NULL,
`bkp_copy` tinyint(4) NOT NULL DEFAULT ''0'',
`last_order_number` varchar(35) NOT NULL,
`product` varchar(35) NOT NULL,
`cust_id` varchar(35) DEFAULT NULL,
`a_end_m1` varchar(200) DEFAULT NULL,
`z_end_m1` varchar(200) DEFAULT NULL,
`a_ne_m1` varchar(200) DEFAULT NULL,
`z_ne_m1` varchar(200) DEFAULT NULL,
`a_end_m2` varchar(200) DEFAULT NULL,
`z_end_m2` varchar(200) DEFAULT NULL,
`a_ne_m2` varchar(200) DEFAULT NULL,
`z_ne_m2` varchar(200) DEFAULT NULL,
PRIMARY KEY (`CirID`,`bkp_copy`),
UNIQUE KEY `CirID_index1` (`CirID`,`bkp_copy`),
KEY `fk_e_s_order` (`last_order_number`),
KEY `index_en` (`CirID`,`cust_id`),
CONSTRAINT `fk_e_s_order` FOREIGN KEY (`last_order_number`)
REFERENCES `order` (`order_number`) ON DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB DEFAULT CHARSET=latin1 PACK_KEYS=1
CREATE TABLE `e_seg` (
`CirID` varchar(255) NOT NULL,
`bkp_copy` tinyint(4) NOT NULL DEFAULT ''0'',
`segmentid` tinyint(4) NOT NULL,
`a_end` varchar(200) NOT NULL,
`z_end` varchar(200) NOT NULL,
`a_ne` varchar(200) DEFAULT NULL,
`z_ne` varchar(200) DEFAULT NULL,
PRIMARY KEY (`CirID`,`bkp_copy`,`segmentid`),
KEY `fk_e_seg_e_s` (`CirID`,`bkp_copy`),
KEY `index_ev` (`CirID`),
CONSTRAINT `fk_e_seg_e_s` FOREIGN KEY (`CirID`, `bkp_copy`)
REFERENCES `e_s` (`CirID`, `bkp_copy`) ON DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB DEFAULT CHARSET=latin1
此sp返回Count和值以在java UI中列出
答案 0 :(得分：1)
如何优化存储过程？首先测试碎片，看看哪一个是最慢的。
在这种情况下很容易看出：NOT IN ( SELECT ... )非常低效，至少在旧版本的MySQL中（包括5.5; 5.6有一些改进）。将它们变成LEFT JOIN ... WHERE ... IS NULL。
并且不要比较CONCATs，这完全消除了使用任何索引的变化。而是使用像
me.elementName = exit_mode AND tp.elementName = exit_node_tp
然后有一个综合索引：
INDEX(exit_node, exit_node_tp)
谨防混合COUNT(*)和JOIN。 JOIN 可能会夸大中间表中的行数，然后COUNT会抓取膨胀的数量。
dtp.device_name COLLATE latin1_general_cs也消除了索引的使用。解决方案使用该排序规则声明dtp.device_name（如果可能）？
可能还有其他一些建议。处理上述建议，然后再回来寻求更多建议/滥用。包含SHOW CREATE TABLE和EXPLAIN SELECT ...的大SELECT。