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Reference for unit 'sqldb' (#fcl)

TSQLSequenceApplyEvent

When to fetch a new sequence number

Declaration

Source position: sqldb.pp line 421

`type TSQLSequenceApplyEvent = (`
`saeOnNewRecord,`		Fetch an ID when a new record is appended to a dataset
`saeOnPost`		Fetch an ID when a new record is posted in the dataset
`);`

TSQLSequenceApplyEvent enumerates the moments when a new ID must be fetched for a sequence field.

TSQLSequence		Support for applying sequences to fields
TSQLConnection.GetSequenceNames		Return a list of sequence names
TSQLConnection.GetNextValue		Get next value for a sequence