Limitations on identifier length Identifier length limitationsThe following table lists limitations on identifier lengths in . Identifier Maximum number of characters allowed constraint name 128 correlation name 128 cursor name 128 data source column name 128 data source index name 128 data source name 128 savepoint name 128 schema name 128 unqualified column name 128 unqualified function name 128 unqualified index name 128 unqualified procedure name 128 parameter name 128 unqualified trigger name 128 unqualified table name, view name, stored procedure name 128