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From: --CELKO-- on 26 Apr 2010 22:56 Please post DDL, so that people do not have to guess what the keys, constraints, Declarative Referential Integrity, data types, etc. in your schema are. If you know how, follow ISO-11179 data element naming conventions and formatting rules. Temporal data should use ISO-8601 formats. Code should be in Standard SQL as much as possible and not local dialect. Sample data is also a good idea, along with clear specifications. It is very hard to debug code when you do not let us see it. If you want to learn how to ask a question on a Newsgroup, look at: http://www.catb.org/~esr/faqs/smart-questions.html But the real question is why such a pair of tables, loaded with redundant data, exist at all!! Just make a VIEW on the larger table to get the trimmed table for whatever reason you need it. |