ALTER TABLE [schema .] table { alter_table_clauses | alter_table_partitioning | alter_column_clauses | alter_constraint_clauses | alter_column_properties | alter_external_table_clause | move_table_clause } [{ enable_disable_clause | { ENABLE | DISABLE } { TABLE LOCK | ALL TRIGGERS } } [ enable_disable_clause | { ENABLE | DISABLE } { TABLE LOCK | ALL TRIGGERS } ]... ] ;
For information on the symbols and conventions of Backus-Naur Form (BNF) syntax, see Appendix A.