Indexing

Technical Article

RE: Selecting Values In One Table Using Another Table As Filter

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Right versuses left is nothing more than choice of table reference order and which needs all the data. In this case table 2s data should all be there but those from 1 elminated so only fee data is left. If this case becuase Steve followed name order for reference order RIGHT join applies, for LEFT you need to have […]

2004-01-08

Technical Article

RE: I post wrong place, no one answer??

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Our developer complain slow processes, then ask me restore whole db in local server(in our company datacenter) to test compare their application with our power cluster server which sit very long distince from here, developer using from EM show me return from same table only 136 rows from EM for both server , which local server […]

2004-01-06

Technical Article

RE: Sub-Select Wierdness

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Not quite what was meant. The original subquery evaluates to a (possibly repeated) set of all the code values from table1. Thus the condition "IN" always evaluates to true. The subquery does not itself evaluate to true. The change you propose would almost certainly fail as it would check for code values that are "IN" […]

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2004-01-03

Technical Article

RE: NOT NULL CONSTRAINT

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Thanks - But if I can't figure out how to name the CONSTRAINT in the first place, I won't be able to rename it either. If I list my constraints by name, I don't see any of the "NOT NULL" consraints I have created, so SQL must not really treat them as a constraint. &nbsp&nbspSELECT […]

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2003-12-23

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