今天简单总结一下SQL中PROCEDUR,TRIGGER,FUNCTION的简单应用。 一.简单PROCEDURE 1.不带参数 create proc PROC_Test as select 字段名 from 表名 2.带输入,输出参数 create proc PROC_TESTParamer @ID varchar(16), @username varchar(20) output as sel
概述 存储过程(Stored Procedure) 是一组完成特定功能的Transact- SQL语句的集合,即将一些固定的操作集中起来由SQL Server服务器来完成,应用程序只需调用它就可以实现某个特定的任务。 存储过程是可以通过用户、其他存储过程或触发器来调用执行。SQL Serve 201
how to call more than one table from result procedure in mvc controller How to call MySql stored procedure with input, output parameters in entity framework database first approach how to call the button click event in partial view ,action required in parent view How to call viewbag value i...
CREATE EVENT TRIGGER name ON event [ WHEN filter_variable IN (filter_value [, ... ]) [ AND ... ] ] EXECUTE { FUNCTION | PROCEDURE } function_name() event 表示触发事件,目前仅支持ddl_command_start、ddl_command_end、table_rewrite 和 sql_drop WHEN filter_variable 用于过滤部分事件,当前仅...
Before creating a trigger, one must create the function or procedure that is to be run. Once that is in place, use the CREATE TRIGGER statement to attach the trigger to its table and specify when it should be run. Stored procedures are SQL program modules that are invoked by an ...
SQL triggers are a special type of stored procedure that are executed when a data change takes place on a table. When they are declared, triggers are associated with a specific table and with a SQL data modification operation such as INSERT, UPDATE, or DELETE. Triggers can be implemented ...
A USE database statement is not allowed in a procedure, function or trigger. A week this year Against a week this time last year in SQL (NOT MDX) A WITH keyword and parenthesis are now required Accent Sensitivity Access Code - DELETE Statement with DISTINCTROW and T-SQL Access Now() vs...
觸發程式事件述詞可以在 CREATE TRIGGER 陳述式的觸發動作中任何地方使用複合 SQL (已編譯) 陳述式作為SQL-procedure-statement。 WHEN (search-condition) 指定true、false 或 unknown 的條件。search-condition可讓您判斷是否應該執行特定觸發動作。 只有在指定的搜尋條件評估為 true 時,才會執行相關聯的動作。 如果省...
これは、対応するパラメーターが、 CREATE PROCEDURE ステートメントの中で、IN、INOUT、または OUT として定義されたかどうかには関係ありません。 table-locator-reference エレメントに関する考慮事項: table-locator-reference は、トリガー本体の中で指定してはなりません。 暗黙的な非表示列に...
DELETE | UPDATE [OF column [, column …]]}[OR {INSERT | DELETE | UPDATE [OF column [, column …]]}...]ON [schema.]table_name | [schema.]view_name[REFERENCING {OLD [AS] old | NEW [AS] new| PARENT as parent}][FOR EACH ROW ][WHEN condition]PL/SQL_BLOCK | CALL procedure_...