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Writing an SQL statement when two files have the same name

There are two physical files named aa and bb. Both have the same fields: TOY# & PART#. Besides these, to file aa, there is a field COMM. And to file bb, there is a field CATE. Now I'd like to update aa.COMM when aa.TOY#=bb.TOY# and aa.PART#=bb.PART# and bb.CATE='60'. Would you please tell how to write the SQL statement?

Assuming you want set AA.COMM equal to bb.CATE, the SQL Update statment would look something like this:

 (SELECT bb.CATE FROM bb WHERE aa.TOY#=bb.TOY# and aa.PART#=bb.PART# and

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This was first published in April 2003

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