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| Firebird Documentation Index → Firebird 2.5 Language Ref. Update → Operators and predicates → NEXT VALUE FOR |
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Available in: DSQL, PSQL
Added in: 2.0
Description: Returns the next value in a sequence. SEQUENCE is the SQL-compliant term for what InterBase and Firebird have always called a generator. NEXT VALUE FOR is fully equivalent to GEN_ID(..., 1) and is the recommended syntax from Firebird 2.0 onward.
Syntax:
NEXT VALUE FORsequence-name
Example:
new.cust_id = next value for custseq;
NEXT VALUE FOR doesn't support increment values other than 1. If you absolutely need other step values, use the legacy GEN_ID function.
See also: CREATE SEQUENCE, GEN_ID()
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| Firebird Documentation Index → Firebird 2.5 Language Ref. Update → Operators and predicates → NEXT VALUE FOR |