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Re: SQL vs Perl table comparing

by FamousLongAgo (Friar)
on Nov 07, 2002 at 18:42 UTC ( [id://211178]=note: print w/replies, xml ) Need Help??

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  1. or download this
    1 SELECT t1.* FROM t1 LEFT JOIN t2 ON t1.key = t2.key WHERE t2.key IS NULL
  2. or download this
    2 SELECT t2.* FROM t1 LEFT JOIN t2 ON t2.key = t1.key WHERE t1.key IS NULL
  3. or download this
    3SELECT t1.* FROM t1, t2 WHERE t1.key = t2.key AND NOT t1.content = t2.content
  4. or download this
    4 SELECT t1.* FROM t1, t2 WHERE t1.key = t2.key AND t1.field1 = t2.field1 AND...
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