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Can anyone help me fine tune this Query

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CREATE TABLE #TMPLOCALE(key_val NVARCHAR(255),value NVARCHAR(255),locale NVARCHAR(2000),source_value NVARCHAR(255),module NVARCHAR(255)) DECLARE @key NVARCHAR(255) DECLARE @value NVARCHAR(255) DECLARE @source_value NVARCHAR(255) DECLARE @module NVARCHAR(255) DECLARE C1 CURSOR LOCAL FAST_FORWARD FOR WITH cte AS ( SELECT key_value,value,ROW_NUMBER() OVER(PARTITION BY key_value ORDER BY VALUE DESC) slno,source_value,module FROM (SELECT DISTINCT key_value,CASE WHEN locale = 'en-us' THEN CAST(text_value AS NVARCHAR(2000)) ELSE NULL END AS VALUE,source_value,module FROM localization l1 (NOLOCK) WHERE l1.product = 'TC' AND l1.locale IN (SELECT DISTINCT REPLACE(iso_code,'_','-') FROM lang (NOLOCK) WHERE iso_code LIKE '%[_]%' AND iso_code NOT IN ('en_ca','en_in','en_za', 'en_au') UNION ALL SELECT 'ar' ) -- and l1.key_value = 'com.ceb.shl.shlonline.model.MessageFeeds.message.7' )tbl ) SELECT key_value,value,source_value,module FROM cte WHERE slno = 1 OPEN C1 FETCH NEXT FROM C1 INTO @key,@value,@source_value,@module WHILE @@FETCH_STATUS = 0 BEGIN INSERT INTO #TMPLOCALE(key_val,value,locale,source_value,module) select @key,@value, STUFF(( select ', ' + locale FROM(SELECT DISTINCT locale FROM localization (NOLOCK) WHERE locale IN (SELECT DISTINCT REPLACE(iso_code,'_','-') FROM lang (NOLOCK) WHERE iso_code LIKE '%[_]%' AND iso_code NOT IN ('en_ca','en_in','en_za', 'en_au') UNION ALL SELECT 'ar') AND product ='TC' EXCEPT SELECT locale FROM localization (NOLOCK) WHERE locale IN (SELECT DISTINCT REPLACE(iso_code,'_','-') FROM lang (NOLOCK) WHERE iso_code LIKE '%[_]%' AND iso_code NOT IN ('en_ca','en_in','en_za', 'en_au') UNION ALL SELECT 'ar' ) AND key_value = @key AND product ='TC' ) tbl ORDER BY locale FOR XML PATH('')),1,1,''),@source_value,@module FETCH NEXT FROM C1 INTO @key,@value,@source_value,@module END CLOSE C1 DEALLOCATE C1 SELECT * FROM #TMPLOCALE where locale IS NOT NULL

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