Index name '%1' is ambiguous

Item Value
SQLCODE -678
Constant SQLE_AMBIGUOUS_INDEX_NAME
SQLSTATE 52W40
Sybase error code 1921
ODBC 2 State S0011
ODBC 3 State 42S11
Parameter 1 Name of the ambiguous index.

Probable cause 

A statement has referred to an index name which is not unique. Preface the index name by a table and/or owner name.