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내 쿼리가로드 속도가 느려지는 이유에 대한 완벽한 설명이 있습니까?내 쿼리로드가 일반적인 쿼리보다 느린 이유
내 쿼리를 빠르게로드 할 수있는 재구성이 있습니까? 여기에 전체에서
SELECT IF(IMI.BRANCH_CODE IS NOT NULL AND IMI.PRODCODE IS NOT NULL AND IMI.POLNO IS NOT NULL,"Y","N") as STATUS,
NOW(),ICH.CLAIM_NO,ICH.BRANCH_CODE,
ICH.PRODUCT_TYPE,ICH.POLICY_NO,ICH.ASSURED_NAME,
ICH.AGENT_NO,ICH.INCEPTION_DT,ICH.EXPIRY_DT,
ICH.DT_REPORTED,IMI.BASIC_PREMIUM,ICH.CLAIM_STATUS,
IRPD.CLAIM_RESERVE,IRPD.TOTAL_AMT_RECOMMENDED,IRPD.DT_RECOMMENDED,
IMI.UW_YEAR,ICDO.PLATE_NO,ICDO.CHASSIS_NO,
ICDO.MOTOR_NO,IMI.LOCATION,IMI.RISKNO,IMI.SEQNO
FROM `ICATS_CLAIM_HEADER` ICH
LEFT JOIN `ICATS_CLAIM_DETAILS_OD` ICDO ON ICH.CLAIM_NO = ICDO.CLAIM_NO
LEFT JOIN `ICATS_MULTIPLE_LOSS` IML ON ICH.CLAIM_NO = IML.CLAIM_NO
LEFT JOIN (SELECT * FROM ICATS_RESERVE_PAYMENT_DETAILS
WHERE DATEDIFF(NOW(),DT_RECOMMENDED)=1 OR DATEDIFF(NOW(),RESERVE_DT)=1) IRPD
ON ICH.CLAIM_NO = IRPD.CLAIM_NO
LEFT JOIN (SELECT POLNO,PRODCODE,BRANCH_CODE,MAX(SEQNO)as SEQNO FROM IWRITE_MOTOR_INFO
GROUP BY POLNO,PRODCODE,BRANCH_CODE) IM
ON ICH.POLICY_NO = IM.POLNO AND ICH.BRANCH_CODE = IM.BRANCH_CODE AND ICH.PRODUCT_TYPE = IM.PRODCODE
JOIN IWRITE_MOTOR_INFO IMI
ON IM.POLNO = IMI.POLNO AND IM.PRODCODE = IMI.PRODCODE AND IM.BRANCH_CODE = IMI.BRANCH_CODE AND IM.SEQNO = IMI.SEQNO
WHERE (DATEDIFF(CURDATE(),ICH.CLAIM_STATUS_DT)=1
OR DATEDIFF(NOW(),ICDO.TRANSACTION_DT)=1
OR DATEDIFF(NOW(),IRPD.RESERVE_DT)=1
OR DATEDIFF(NOW(),IRPD.DT_RECOMMENDED)=1)
ORDER BY ICH.CLAIM_NO,IRPD.SEQUENCE_NO ASC
모든 datas를 확인하면서 내 쿼리를 삽입 할 사실 100secs에 느린로드 것으로 보인다 내 전체 query.Just입니다.
INSERT INTO `ICATS_IINSURE_CLAIM_HEADER`(IINSURE_EXIST,RECORD_CREATED_DT,CLAIM_NUMBER,BRANCH_CODE,PRODCODE,POLNO,ASSURED_NAME1,
AGENT_CODE,INCEPTION,EXPIRY,DATE_REPORTED,BASIC_PREMIUM,
CLAIM_STATUS,RESERVE_AMOUNT,CLAIMS_PAID_AMOUNT,
DATE_RECOMMEND_PAYMENT,UW_YEAR,PLATE_NUMBER,
CHASSIS,ENGINE,LOCATION,RISKNO,SEQ)
SELECT IF(IMI.BRANCH_CODE IS NOT NULL AND IMI.PRODCODE IS NOT NULL AND IMI.POLNO IS NOT NULL,"Y","N") as STATUS,
NOW(),ICH.CLAIM_NO,ICH.BRANCH_CODE,
ICH.PRODUCT_TYPE,ICH.POLICY_NO,ICH.ASSURED_NAME,
ICH.AGENT_NO,ICH.INCEPTION_DT,ICH.EXPIRY_DT,
ICH.DT_REPORTED,IMI.BASIC_PREMIUM,ICH.CLAIM_STATUS,
IRPD.CLAIM_RESERVE,IRPD.TOTAL_AMT_RECOMMENDED,IRPD.DT_RECOMMENDED,
IMI.UW_YEAR,ICDO.PLATE_NO,ICDO.CHASSIS_NO,
ICDO.MOTOR_NO,IMI.LOCATION,IMI.RISKNO,IMI.SEQNO
FROM `ICATS_CLAIM_HEADER` ICH
LEFT JOIN `ICATS_CLAIM_DETAILS_OD` ICDO ON ICH.CLAIM_NO = ICDO.CLAIM_NO
LEFT JOIN `ICATS_MULTIPLE_LOSS` IML ON ICH.CLAIM_NO = IML.CLAIM_NO
LEFT JOIN (SELECT * FROM ICATS_RESERVE_PAYMENT_DETAILS
WHERE DATEDIFF(NOW(),DT_RECOMMENDED)=1 OR DATEDIFF(NOW(),RESERVE_DT)=1) IRPD
ON ICH.CLAIM_NO = IRPD.CLAIM_NO
LEFT JOIN (SELECT POLNO,PRODCODE,BRANCH_CODE,MAX(SEQNO)as SEQNO FROM IWRITE_MOTOR_INFO
GROUP BY POLNO,PRODCODE,BRANCH_CODE) IM
ON ICH.POLICY_NO = IM.POLNO AND ICH.BRANCH_CODE = IM.BRANCH_CODE AND ICH.PRODUCT_TYPE = IM.PRODCODE
JOIN IWRITE_MOTOR_INFO IMI
ON IM.POLNO = IMI.POLNO AND IM.PRODCODE = IMI.PRODCODE AND IM.BRANCH_CODE = IMI.BRANCH_CODE AND IM.SEQNO = IMI.SEQNO
WHERE (DATEDIFF(CURDATE(),ICH.CLAIM_STATUS_DT)=1
OR DATEDIFF(NOW(),ICDO.TRANSACTION_DT)=1
OR DATEDIFF(NOW(),IRPD.RESERVE_DT)=1
OR DATEDIFF(NOW(),IRPD.DT_RECOMMENDED)=1)
ORDER BY ICH.CLAIM_NO,IRPD.SEQUENCE_NO ASC
내부 선택을 사용하지 마십시오. (왼쪽 조인에서 볼 수 있습니다) – SNpn
OR이 나쁜 성능으로 악명 높습니다. –
@SNpn, 실제 테이블 대신 하위 쿼리에서 선택하여 성능이 향상되는 것을 보았습니다. –