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

Available in: DSQL, PSQL

Added in: 2.1

Description: Returns a hash value for the input string. This function fully supports text BLOBs of any length and character set.

Result type: BIGINT

Syntax: 

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