rollback tran

Source Document Http://wenku.baidu.com/link?url=yUH8Yhb8isIvJb8A7c0Hv_ ktfslt-jtvrqd2e2tgmfwzwgwqkjffb1txv5zr1fmp52s9cpxuhn7b6fmwybz28wryg-4-awobj3z7mkiwf6gA Transaction definition: A transaction is the smallest unit of work for SQL Server, and each

SQL Server transactions and SQL Server transactions 1. What is a transaction:A transaction is an inseparable logical unit of work. It is used as the smallest control unit to execute concurrent operations on the database system. All the database

Special SQL statements (learning notes), which are returned in XML, are used to add and convert large batches of data. Special SQL statements (learning notes), which are returned in XML, are used to add and convert large batches of data. [1]

Sqldatabase DB =   New Sqldatabase ( @" Server =. \ sql2008, uid = SA, Pwd = 123456, database = dbtest " ); Using (Dbconnection connection = DB. createconnection ()){ // Open Link Connection. open (); // Create a

-- If exists (select * From DBO. sysobjects where id = object_id (n' [DBO]. [icstockbill_insert] ') and objectproperty (ID, n' istrigger') = 1) -- drop trigger [icstockbill_insert] -- go /******************************* ******************************

· If only the inserted table has data, the current operation is insert;· When both the inserted and deleted tables have data, the current operation is update;· The current operation is delete only when the deleted table has data.CREATE TRIGGER The

When dynamically creating a database table field, if the "empty" attribute of this field is not empty, and the table is associated with other tables, deleting the column dynamically may fail. The error is reported because one or more objects access

Overview Transactions must be atomic, consistent, isolated, and persistent. Although acronyms are easy to remember, the meaning of each word is not obvious. The following is a brief description.● Atomicity: Atomicity ensures that either all updates

Today, I re-read chapter 7 of "asp.net advanced programming design version 4". I didn't care much about asp.net's transaction processing, however, it is really appropriate to say that: Let's know new things. Today, there are not many content, and

I used to get a similar method to remove the same information. I cannot find it now, but today I have spent some time to get it out and record it. I used to get a similar method to remove the same information. I cannot find it now, but today I have

Name of the stored procedure execsp_decrypt Decrypting a specified Stored Procedure exec sp_decrypt 'stored procedure name' The Code is as follows: Create PROCEDURE sp_decrypt (@ objectName varchar (50 )) AS Begin Begin tran Declare @ objectname1

1Replication-replicationdistributionsubsystemagentnullfailed.thepublicationXXXdoesnotexist can be seen literally that the current subscription has not been published, but the corresponding distribution agent has not been deleted for some reason.

When updating multiple tables, an execution fails. Transaction rollback is required to maintain data integrity.Display set transactions The code is as follows:Copy code Begin tryBegin transactionInsert into shiwu (asd) values ('aasdasda

This tutorial is about SQL Server transactions, exceptions, and cursors. I hope it will help you.1. Features of transactionsA transaction consists of several T-SQL commands, and all the commands are submitted to the database tutorial system one

A transaction (Transaction) is the basic unit of concurrency control. The so-called transaction, which is a sequence of operations that are either executed or not executed, is an inseparable unit of work. For example, a bank transfer job: Debit from

1. Introduction to the connection environment1.1. Characteristics of the connected environment? A connected environment is where the user always maintains a connection to the data source in this environment? Advantages– Easy to implement safety

A transaction (Transaction) is the basic unit of concurrency control. The so-called transaction, which is a sequence of operations that are either executed or not executed, is an inseparable unit of work. For example, a bank transfer job: Debit from

Cardinality table-Used to store number prefixes and typesThe following tables are builtCREATE TABLE [dbo]. [Serialno] ([SCode] [varchar] () not NULL,[SName] [varchar] (+) NULL,[SQZ] [varchar] () NULL,[Svalue] [varchar] () NULL,CONSTRAINT

Whether intentionally or unintentionally, if a transaction remains open in the database, it blocks other processes from manipulating the modified data. Similarly, backing up the transaction log only truncates the part of the transaction log for

The origin of 11.4.1 Affairs When you update a database with the delete command or the update command, you can only manipulate one table at a time, which can cause data inconsistencies in the database. For example: The enterprise cancels the