DECLARE @Count INT CREATE TABLE #LCDelete (Survey_Key char(16) COLLATE SQL_Latin1_General_CP1_CI_AS, Survey_Event_key char(16) COLLATE SQL_Latin1_General_CP1_CI_AS, Sample_Key char(16) COLLATE SQL_Latin1_General_CP1_CI_AS, Taxon_Occurrence_key char(16) COLLATE SQL_Latin1_General_CP1_CI_AS, Biotope_Occurrence_key char(16) COLLATE SQL_Latin1_General_CP1_CI_AS ) INSERT INTO #LCDelete (Survey_Event_Key) SELECT DISTINCT SE.Survey_Event_Key FROM Survey_Event SE WHERE NOT EXISTS (SELECT * FROM SAMPLE S WHERE SE.Survey_Event_Key = S.Survey_Event_Key) SET @COUNT = @@rowcount + @COUNT set rowcount 3000 WHILE 1 =1 BEGIN DELETE FROM SSC FROM SURVEY_EVENT_SOURCES SSC INNER JOIN #LCDELETE #LCD ON #LCD.SURVEY_EVENT_KEY = SSC.SURVEY_EVENT_KEY IF @@rowcount < 3000 BREAK END set rowcount 3000 WHILE 1 =1 BEGIN DELETE FROM SEREC FROM SURVEY_EVENT_RECORDER SEREC INNER JOIN #LCDELETE #LCD ON #LCD.SURVEY_EVENT_KEY = SEREC.SURVEY_EVENT_KEY IF @@rowcount < 3000 BREAK END set rowcount 3000 WHILE 1 =1 BEGIN DELETE FROM SEO FROM SURVEY_EVENT_OWNER SEO INNER JOIN #LCDELETE #LCD ON #LCD.SURVEY_EVENT_KEY = SEO.SURVEY_EVENT_KEY IF @@rowcount < 3000 BREAK END set rowcount 3000 WHILE 1 =1 BEGIN DELETE FROM SE FROM SURVEY_EVENT SE INNER JOIN #LCDELETE #LCD ON #LCD.SURVEY_EVENT_KEY = SE.SURVEY_EVENT_KEY IF @@rowcount < 3000 BREAK END set rowcount 0 SELECT @Count AS COUNT DROP TABLE #LCDELETE