Arrays

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Arrays in SQL that Avoid Repeated Groups

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It is certainly possible to fake an Array in SQL, but there are only a few occasions when it would be the best design. Most often, the wish for an array in SQL is a sign of a forlorn struggle against poorly-normalised data. One of the worst sins against Codd is the repeating group, as Joe Celko explains.

2011-07-20

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Identities and Sequences V

When thinking about the identity property and sequence objects, which of these can generate values before an insert statement is executed?

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