摘要:
BEFORE INSERT Trigger A BEFORE INSERT Trigger means that Oracle will fire this trigger before the INSERT operation is executed.The syntax for an BEFORE INSERT Trigger is:CREATE or REPLACE TRIGGER trig... 阅读全文
摘要:
In Oracle, you can create your own procedures.The syntax for a procedure is:CREATE [OR REPLACE] PROCEDURE procedure_name [ (parameter [,parameter]) ]IS [declaration_section]BEGIN executable_s... 阅读全文
摘要:
In Oracle, you can create your own functions.The syntax for a function is:CREATE [OR REPLACE] FUNCTION function_name [ (parameter [,parameter]) ] RETURN return_datatypeIS | AS [declaration_se... 阅读全文