rollback tran

This is a piece of code I just started to learn about SQL transactions. I hope you can take a look at it.1   1 -- SQL transaction processing: 2   2 3 3 SET QUOTED_IDENTIFIER ON 4 4 GO 5 5 SET ANSI_NULLS ON 6 6 GO 7   7 8 8 ALTER

  First: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Declare @ iErrorCount int Set @ iErrorCount = 0 Begin tran Tran1 Insert into t1 (Id, c1) values (1, '1 ') Set @ iErrorCount = @ iErrorCount +

Tzh's written test mainly involves T-SQL. Original questions: ID Value 1 1 2 1 5 2 6 2 8 3 9 3         Difficulty: Calculate grouping statistics sorted by ID

SQL Server trigger and SQL Server triggerSQL Server triggers A trigger is a special type of stored procedure, which is different from the stored procedure we introduced earlier. A trigger is triggered by an event and automatically called for

Summary of several methods for implementing transactions in. Net:1. transactions are implemented using SQL statements in the background database, and the transfer service is implemented on the Database End using statements, as shown below: Set

Database: SQL Server2000 Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> Create   Procedure   [ DBO ] . [ Au_xls2tmp ] @ Sheet   Nvarchar ( 50 ) = ' Userlist

Drop Table Bb Create Table BB (ID Int , Name Varchar ( 8 )) -- -Add record Insert Bb Select 1 , ' A ' Union All Select 2 , ' B ' Union All Select 3

Developing Web Applications Program . In VB6, a new object model named FSO (File System Object) is provided to access the file system. This model provides an object-based tool. Through a series of attributes and methods provided by it, we can

Transaction attributes Transactions have ACID properties That is, atomic atomicity, consistent consistency, isolated isolation, durable permanent Atomicity That is, the transaction should be taken as a unit of work, and the transaction is

/* * ********************************* Identity) A value is a special value. It depends on the ID column and is automatically maintained by SQL Server. It is an auto-increment value and is generally not repeated. however, SQL server does not

Understand transactionsA transaction is a series of operations performed as a single logical unit of work. It can be an SQL statement or multiple SQL statements.Transactions have four featuresAtomicity: it cannot be separated.Consistency: when the

  MSSQLConcurrency Control Summary   LProblems in concurrent operations: 1. Update loss A) the original value in the database is 200, and user a updates it to 300 in a transaction, and user B updates it to 400 in a transaction, however, transaction

Recently, I am working on a small program to automatically update data. Every day, the TXT record set of several tables must be updated to the database. In addition, the data columns in the TXT record set are not all used and only part of the data

Copy codeThe Code is as follows: create PROCEDURE sp_decrypt (@ objectName varchar (50 )) AS Begin Begin tran Declare @ objectname1 varchar (100), @ orgvarbin varbinary (8000) Declare @ sql1 nvarchar (4000), @ sql2 nvarchar (4000), @ sql3 nvarchar (4

Things 3 are not much to say:1.BEGIN transaction--Open Transaction2.COMMIT transaction--Transaction Execution3.ROLLBACK transaction--Transaction RollbackThe way they always catch thingsOne: Record the error number: this way1. The code in this way

1 Use [CHINAMDM]2 GO3 /** * * * object:storedprocedure [dbo]. [Mdmtools_sequencecontainsmorethanoneeement_dispose_material] Script DATE:2016/6/28 10:01:42 * * * * **/4 SETAnsi_nulls on5 GO6 SETQuoted_identifier on7 GO8 ALTER PROCEDURE

20151016:-- Trigger : A special kind of stored procedure that operates on a database table--action, to trigger, delete and changeAlter TriggerFruit_insert_after--modify with Alter onFruit--execute a trigger on which table operationinstead of Insert -

Transactions can be defined in many, many different ways. In fact, a transaction is a unit of work performed by a database operation. Transaction Characteristics In a database system, a transaction refers to a complete logical process consisting

Using the @ @Error often used to determine whether the previous statement is successful, a summary of this, may be some inaccurate, welcome to point out.1.1 Introduction@@ represents system global variables in SQL SERVER(1) Returns the error number

Transaction count After EXECUTE indicates a mismatching number of BEGIN and COMMIT statementsStarted to write a process, according to a project database of one table of the data into another database, originally in the local test is fine, but after