用户有一个查询，在运行时锁定数据库中的所有其他内容。 我运行了一个配置文件，它返回了很多记录，但我真的不知道如何处理它。 有人可能更有效地编码吗？它运行了很长一段时间。
SELECT
CLAIMS.LINE_GROUPING1
,CLAIMS.LOSS_DATE
,(CASE WHEN CLAIMS.POLICY_STATE=14 THEN 'IA'
WHEN CLAIMS.POLICY_STATE=12 THEN 'IL'
WHEN CLAIMS.POLICY_STATE=22 THEN 'MN'
WHEN CLAIMS.POLICY_STATE=26 THEN 'NE'
WHEN CLAIMS.POLICY_STATE=40 THEN 'SD'
WHEN CLAIMS.POLICY_STATE=48 THEN 'WI'
ELSE 'NA' END) AS POLICY_STATE
,CLAIMS.CLAIM_ZIPCODE
,CLAIMS.DIRECT_CASE_INC
,CLAIMS.OCC_CNT
,CLAIMS.DIRECT_CASE_INC*
(CASE WHEN CLAIMS.ACCIDENT_YEAR IN(2013)
THEN 1.00
WHEN CLAIMS.LINE_GROUPING1='PERSONAL AUTO' AND CLAIMS.ACCIDENT_YEAR < 2013
THEN COALESCE(COALESCE(TREND.TREND,AUTO_AVG.AVG_TREND),1.00)
WHEN CLAIMS.LINE_GROUPING1='HOMEOWNERS' AND CLAIMS.ACCIDENT_YEAR BETWEEN 2007 AND (2013-1)
THEN COALESCE(COALESCE(TREND.TREND,HOME_AVG.AVG_TREND),1.00)
WHEN CLAIMS.LINE_GROUPING1='HOMEOWNERS' AND CLAIMS.ACCIDENT_YEAR =2006
THEN COALESCE(COALESCE(TREND_HOME_2007.TREND,HOME_AVG_2007.AVG_TREND),1.00)
ELSE 1.00 END)
AS EXP_ADJ_CASE_INC
FROM mva.CLAIMS_STORM_LOSSES_TEMP AS CLAIMS
LEFT OUTER JOIN mva.CLAIMS_Exposures_Trending AS TREND
ON CLAIMS.LINE_GROUPING1 = TREND.LINE_GROUPING1
AND CLAIMS.ACCIDENT_YEAR = TREND.ACCIDENT_YEAR
AND CLAIMS.POLICY_STATE = TREND.STATE
AND CLAIMS.CLAIM_ZIPCODE = TREND.ZIPCODE
LEFT OUTER JOIN mva.CLAIMS_Exposures_Trending AS TREND_HOME_2007 #DONT HAVE A 2006 TREND FACTOR
ON CLAIMS.LINE_GROUPING1 = TREND_HOME_2007.LINE_GROUPING1
AND TREND_HOME_2007.ACCIDENT_YEAR=2007
AND CLAIMS.POLICY_STATE = TREND_HOME_2007.STATE
AND CLAIMS.CLAIM_ZIPCODE = TREND_HOME_2007.ZIPCODE
LEFT OUTER JOIN mva.CLAIMS_Exposures_Auto_AVG_TREND AS AUTO_AVG
ON AUTO_AVG.ACCIDENT_YEAR = CLAIMS.ACCIDENT_YEAR
AND AUTO_AVG.STATE = CLAIMS.POLICY_STATE
LEFT OUTER JOIN mva.CLAIMS_Exposures_Home_AVG_TREND AS HOME_AVG
ON HOME_AVG.STATE = CLAIMS.POLICY_STATE
AND HOME_AVG.ACCIDENT_YEAR = CLAIMS.ACCIDENT_YEAR
LEFT OUTER JOIN mva.CLAIMS_Exposures_Home_AVG_TREND AS HOME_AVG_2007 #DONT HAVE A 2006 TREND FACTOR
ON HOME_AVG_2007.STATE = CLAIMS.POLICY_STATE
AND HOME_AVG_2007.ACCIDENT_YEAR = CLAIMS.ACCIDENT_YEAR
AND HOME_AVG_2007.ACCIDENT_YEAR=2007;
答案 0 :(得分：0)