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SQLite error code

SQLITE_CONSTRAINT_UNIQUE

SQLITE_CONSTRAINT_UNIQUE is SQLite result code 2067, an extended code of SQLITE_CONSTRAINT.

Result code2067
NameSQLITE_CONSTRAINT_UNIQUE
Primary codeSQLITE_CONSTRAINT

What it means

The SQLITE_CONSTRAINT_UNIQUE error code is an extended error code for SQLITE_CONSTRAINT indicating that a UNIQUE constraint failed.

Source: SQLite Result and Error Codes