create trigger for insert update delete sql server
create trigger for insert update delete sql server
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(SELECT * from INSERTED) and is EXISTS (SELECT * from DELETED)----Insertbeginset @acti on= ' INSERT ' endelse IF not EXISTS (SELECT * from INSERTED) and EXISTS (SELECT * from DELETED)----Deletebegin SET @actio n= ' DELETE ' endelse IF EXISTS (SELECT * from INSERTED) and EXISTS (SELECT * from DELETED)-----updatebegin SET @action = ' UPDATE ' Endselect row_number
1. Update the view. In addition to single tables, update, insert, and delete can also be applied to views and subqueries, but there are various restrictions. Restrictions on the www.2cto.com view (subquery:1. No set operators (sum, difference, and intersection); 2. No DISTINCT operators; 3. No aggregate or analysis fun
null denotes no LIMIT clause. ( limit the number of records that are returned, not limited by the empty one )
Returns
A Cursor object, which is positioned before the first entry. Note Cursor that S is not a synchronized, see the documentation for more details.
示例:ContentValues cv =newContentValues();String[] args = {String.valueOf("a")};query("user", new String[] {"username","password"},"username=?",args, null,null, null, null);2、SQLiteDataBase对象的
Oracle + Mybatis implements batch insert, update, and delete sample code, and mybatis sample code
Preface
Mybatis is a commonly used data persistence framework in web engineering development. Through this framework, we can easily add, delete, modify, and query databases. When a database connection commits a transaction
' whereSno= the
Go
Delete fromStudent--CREATE TRIGGER Trigger name
--On table name
--(For/alter/instead of) + action (insert/delete/update/)
-- as
--Stored Procedure Content
--Go
--Fo
Tags: VC + + Visual Studio-Access database Database operation methodMicrosoft Office Access is made up of Microsoft published by relational database management system . Access database is often used in small software systems, such as: production management , Sales Management , Inventory management and other types of enterprise management software, its greatest advantage is: easy to learn, flexible use. Below we combined with examples to detail, in VC + + MFC, how to use Access database files for
* FROM test where ID =2 and (SELECT COUNT (*) from test) =3 MySQL Time blind Note: #select * FROM test where ID =2 and if (ASCII (substring (user ())) =114,benchmark (10000000,SHA1 (1)), 0)#select * FROM test where ID =2 and if (ASCII (substring (user ())) =114,sleep (1), 0) #select * FROM test where ID =2 and if (substring (user (), () = ' R ', Sleep (5), 0)#select * FROM test where ID =2 and if (substring (user (), =char), Sleep (5), 0) Resources: 1. mysql Error injection principle analysi
This tutorial is an introductory tutorial for ASP access, which is mainly about the simple use of ASP, insert Update Delete Oh, OK. Let's write them down in a function and then give an example.
Function add_del_update (tablename,str,id) Select Case str case "Insert": sql
cannot trigger any delete triggers. 5You cannot grant anyone permission to empty another's table. 6when the table is emptied, the index of the table and table is reset to the initial size, and delete does not. 7) cannot empty the parent table. There are foreign keys in table a B c,b C that refer to a table field. First TRUNCATE TABLE B C (sub-table-Foreign key t
SSIS Implementation Update,delete,insert
In the database ETL, ETL has two types of data table extraction: All source extraction, which can not identify the changed or new records, incremental extraction, where only new records and changed records.Here I will briefly explain how to use SQL
ORA-06547: INSERT, UPDATE, or DELETE statements must use the RETURNING clause
ORA-06547: INSERT, UPDATE, or DELETE statements must use the RETURNING clause
ORA-06547: INSERT,
Tags: trigger DDL triggerSQL Server DDL triggers (Trigger)--IntroductionTriggers (Trigger) are used only on specific objects, such as data tables. When the INSERT, Delete, update syntax
Tags: highlight batch tor add ORM Framework official test results own wayTransferred from: http://blog.csdn.net/starywx/article/details/23268465 Some time ago because the project was in a hurry.performance issues in the development process, the process of optimizing some of the code has found that in the case of large amounts of data, the operation of the data seems to be slow, the thought of database DML operations in bulk operations.
It also reminds me that you don't ask questions about bulk o
It is very convenient to use the trigger in SQL Server for the first time today. This article will briefly introduce the trigger in SQL Server and its simple use. I will describe the definition, principle, and usage of this docume
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