摘要：27-Feb-13Trigger syntaxcreate [or replace] trigger [schema .] trigger_identifier{ before | after | instead of }{ dml_event_clause| { ddl_event [or ddl_event]... | database_event [or database_event]... } on { [schema .] schema | database }}[when ( condition ) ]{ pl/sql_block | call_procedure_state... 阅读全文

摘要：close examination combined with patience, and you will become an expert in the field.Oracle database 11g architecture------ 阅读全文