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UPDATE TABLEA SET (b, c, d) = (SELECT b1, c1, d1 from TABLEB WHERE TABLEB.a1 = TABLEA.a and TABLEB.e1 > 40) WHERE EXISTS (SELECT 1 from TABLEB WHERE TABLEB.a1 = TABLEA.a and TABLEB.e1 > 40) update ( select a.fileld, b.fileld from TABLEA a, TABLE b where a.key = b.key) set fileld = fileld
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