存储过程(Stored Procedure)是一组为了完成特定功能的SQL语句集,经编译后存储在数据库中,用户通过指定存储过程的名字并给定参数(如果该存储过程带有参数)来调用执行它。外部程序可以直接调用数据库里面定义好的存储过程,另外数据库内部的触发器(trigger)、或者其他存储过程也可以调用它。 存储过程的优点 (1)执行速度快:...
Requirements: Microsoft SQL Server 2000 or later You can use the INFORMATION_SCHEMA.ROUTINES view to retrieve information about stored procedures. This view contains one row for each stored procedure accessible to the current user in the current database. For example, the following query returns own...
如果您使用 SQL Server Management Studio (SSMS) 进行数据库管理,您可以直接在 SSMS 中查看 Stored Procedure 的定义。在 SSMS 的对象资源管理器中找到相应的 Stored Procedure,右键点击并选择 “脚本存储过程为”,然后选择 “创建到” 或 “更改到”,即可生成包含 Stored Procedure 定义的 SQL 脚本。 3. 示例 ...
One of the common questions that I face while reviewing the applications at customer site is if SQL Server caches and reuses the plan then where is the difference in stored procedure vs. SQL Query. There is no single answer; recommend to read Batch Compilation, Recompilation, and Plan ...
The return value should give me back the number of records found. How can I achieve this. -1 nothing found 0 query ok 1 ...n foundes records Can I define the name of the return myself? If yes, how? 164270-test-script-sql.txt How do I query this correctly in C#...
假设你使用 Teradata 的 .NET 数据提供程序访问 Microsoft SQL Server 2012 Integration Services (SSIS 2012)或 SQL Server 2014 Integration Services (SSIS 2014)中的 Teradata。 当你尝试执行在 SSIS 程序包中将 IsQueryStoredProcedure 属性设置为 True 的 SQL 任务时,你可能会收到以下错误消息: ...
孙卫琴的《精通JPA与Hibernate》的读书笔记: 通过JPA API中的StoredProcedureQuery接口调用存储过程,以下SQL代码定义了一个名为findCustomers的存储过程,p_age为输入参数,p_count为输出参数:delimiter//createprocedurefindCustomers(inp_ageinteger,outp_countinteger)
I've tried using this SQL query on an a Stored Procedure on this mode SET tyear = YEAR(CURDATE()); SET @tbl = CONCAT(DATE_FORMAT(CURRENT_TIMESTAMP(), '%Y%m%d%H'),'_',tyear); SET tablename = CONCAT('t_contents_',@tbl,''); SET @GetName = CONCAT(' SELECT GROUP_CONCAT(DIS...
数据库小技能:存储过程(stored procedure) 引言 过程(procedure)又叫存储过程(stored procedure),是一个有名称的PL/SQL程序块 。 过程相当于java中的方法, 它注重的是实现某种业务功能 。 函数(function)也相当于java中的方法,它 注重计算并且总是有返回结果 。
A stored procedure is a prepared SQL code that you can save, so the code can be reused over and over again.So if you have an SQL query that you write over and over again, save it as a stored procedure, and then just call it to execute it....