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Go to: http://bbs.chinaunix.net/archiver/tid-2331601.html[B] Using transactions (C # programming) in three layers of web development [/B] Many database operations require transactions. There are roughly three levels of transactions under Asp.net:(1)

Transactions are all about atomicity. The concept of Atomicity refers to the ability to treat things as a unit. From the database perspective, it refers to the minimum combination of one or more statements that should be executed or not executed at

2nd some database SQL language data manipulationlanguage (DML) data manipulation languages (DataManipulationLanguage, DML) include insert, delete, and update statements for adding, deleting, and modifying data. This article uses the following table

A special stored procedure that is automatically executed when a trigger inserts, updates, or deletes a table. Triggers are generally used for constraints with more complex check constraints. The difference between a trigger and a Common Stored

I. Simple Syntax of transactions used in Stored Procedures It is very important to use transactions in the stored procedure. Using data can maintain the integrity of the data association. It is also very easy to use transactions in the stored

The method of realizing transaction processing by using ASP Select the Blog from Applebbs The method of using ASP to implement transaction processing for keywords Source When developing Web applications, there is no exception to the need to access

Cursor 1. Prices for books below the current average price are up by 50% 2 prices are reduced by 25% for books above or equal to the current average price The code is as follows: DECLARE title_update cursor For select Title_id,price from titles

Many database operations on the web require transactions, and there are roughly 3 levels of transactions under ASP.net: (1) Transaction at the level of the stored procedure (2) Ado.net-level transactions (3) asp.net transaction at the page

SQL in the actual multi-user concurrent access to the production environment, we often have to keep the data consistent as much as possible. And the most typical example is that we read the data from the table, check the validation, modify the data,

Transaction processing in the development of Web applications, there is no exception to the need to access the database to complete the query, insert, UPDATE, delete and other operations. Influenced by the application logic, it is sometimes

A trigger is a special type of stored procedure that differs from the stored procedure we described earlier. Triggers are triggered primarily by an event that is automatically invoked to execute. The stored procedure can be called by the name of the

A trigger is a special type of stored procedure that differs from the stored procedure we described earlier. Triggers are triggered primarily by an event that is automatically invoked to execute. The stored procedure can be called by the name of the

SQL Server Transactions　　 Defined 　　　　A transaction (TRANSACTION) is a series of operations performed as a single logical unit of work and is an inseparable unit of work that is used as the smallest control unit when concurrent

SQL Server triggersA trigger is a special type of stored procedure that differs from the stored procedure we described earlier. Triggers are triggered primarily by an event that is automatically invoked to execute. The stored procedure can be called

A trigger is a special type of stored procedure that differs from the stored procedure we described earlier. Triggers are triggered primarily by an event that is automatically invoked to execute. The stored procedure can be called by the name of the

Transferred from: http://www.cnblogs.com/hoojo/archive/2011/07/19/2110325.htmlØ BusinessIn a database, it is sometimes necessary to run instructions from multiple steps as a whole that either succeeds or fails altogether, which requires a

Transferred from: http://www.cnblogs.com/hoojo/archive/2011/07/20/2111316.htmlA trigger is a special type of stored procedure that differs from the stored procedure we described earlier. Triggers are triggered primarily by an event that is

Triggers can do a lot of things, but it also brings a lot of problems. The right use is to use it at the right time and not to use it when it is inappropriate.Some common uses for triggers are as follows:[1] Elastic referential integrity: implements

Triggers can do a lot of things, but it also brings a lot of problems. The trick to using it is to use it at the right time, rather than using it at an inappropriate time.Some common uses for triggers are as follows: Elastic referential

Triggers can do a lot of things, but it also brings a lot of problems. The trick to using it is to use it at the right time, rather than using it at an inappropriate time.Some common uses for triggers are as follows: Elastic referential