outer join or subquery
If you are using SQL SERVER 2008, Following is the easy and fast approach: MERGE Table1 T USING (SELECT ridFROM Table2 ) AS S ON T.rid = S.ridWHENNOT MATCHED BY TARGET THENINSERT ( table1id, rid, name,...
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There may well be no difference, the query optimizer may generate the same plan for both of these queries.If you are on SQL 2008 or later, I would use the MERGE command merge into table1 using table2on...
View Articleouter join or subquery
outer join is usually expensive and if you can get the job done with subquery, i will recommend that you go ahead with that. Joins help get cross multiplied views and that is not your requirement here.
View Articleouter join or subquery
hello ,i have two tables, e.g.table1 --- table1id, rid, name, add, city, state, country ....table2 --- table2id, rid, name, ......note: rid column is common in both tablenow i want to insert...
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