Firebird Documentation Index → Firebird 2.5 Language Ref. Update → Internal functions → GEN_UUID()
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GEN_UUID()

Available in: DSQL, PSQL

Added in: 2.1

Description: Returns a universally unique ID as a 16-byte character string.

Result type: CHAR(16) CHARACTER SET OCTETS

Syntax: 

GEN_UUID ()

Example: 

select gen_uuid() from rdb$database
-- returns e.g. 017347BFE212B2479C00FA4323B36320 (16-byte string)

See also: UUID_TO_CHAR(), CHAR_TO_UUID()

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Firebird Documentation Index → Firebird 2.5 Language Ref. Update → Internal functions → GEN_UUID()