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pull data from table A and insert into the same table

Posted By:      Posted Date: August 30, 2010    Points: 0   Category :Sql Server
Hi All, When I pull data from one table and try to insert into the same table, is it possible for any erroneous data loading? ex:   Insert Into TableA Select Cat,Bank, City, Act From TableA A CROSS APPLY (SELECT COUNT(ACT) AS TOT from TableA ) B   Thanks        shamen

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