sql server audit table changes

Sometimes, we need to monitor the changes of a table in an important period, including insertion, update, and deletion. For example, when we export data to an external system, we want to export all the data, and it is best to export the changed data after the last export.As a DBA, we can use traditional trigger operations to build a metadata table or a timestamp

, DELETE AS BEGIN IF (object_id ('dbo. checksumtest') is not null) UPDATE dbo. TableAuditSummary SET LastUpdate = GETDATE () WHERE TableName = 'dbo. checksumtest' END GO -- Make an Update UPDATE dbo. CheckSumTest SET vc1 = 'B', vc2 = 'A' WHERE id = 1 UPDATE dbo. CheckSumTest SET vc1 = 'A', vc2 = 'B' WHERE id = 2 -- Check Meta-Data SELECT * FROM dbo. TableAuditSummary WHERE LastUpdate> LastExport -- When we have Exported the data, we run the following to reset MetaData UPDATE dbo. TableAuditSumma

Tags: www class div utility best important find traditional creatSource: Statistics in SQL Server histogram for no coverage of predicate predictions and changes in the estimation strategy (SQL2012--GT;SQL2014--GT;SQL2016) The source of this article: http://www.cnblogs.com/wy123/p/6770258.html Statistics have written a few related articles, feeling or not enjoyab

The solution to the error of SQL Server 2008 "to prevent saving requests for recreating a table" is the one we are going to introduce in this article: when we have finished building the table with SQL Server 2008, when we insert o

(column_values);Merge rows: ExampleInserts or updates a row in the Copy_emp3 table that matches the employees.Merge into Copy_emp3 CUsing (SELECT * FROM Employees) EOn (c.employee_id = e.employee_id)When matched thenUpdate setC.first_name = E.first_name,C.last_name = E.last_name,...Delete where (e.commission_pct is not null)When isn't matched thenInsert VALUES (e.employee_id, E.first_name, E.last_name,E.email, E.phone_number, E.hire_date, e.job_id,E.

Tags: SQL Server does not allow you to save changes to a workaround When you design a SQL Server database, there are times when you are not allowed to save changes. This is a protection mechanism for

Manual repair of fields added in the release and subscription for replication of SQL Server against schema changes Due to previous requirements, the replication architecture changes are prohibited, and even adding a field to the release will not be synchronized to the subscription. Now, a field with the same name is ad

Tags: style blog http io ar os using SP strongOriginal: SQL Server 2008|2012 block save changes requiring re-creation of tablesIt is not very understandable why the option to block saving changes that require re-creation of tables is included in SQL

deleted record. Only the update operation will record both the original value and the updated value. (according to Microsoft's internal data, the previous version, three operations will record the value before the operation and the value after the operation) Redesign tempdb files are balanced written in a way that reduces competition for system resources. A balanced write means that each tempdb file (assuming there are multiple files) is written at the same time. Therefore, if each physical fil

! (just forget, will not go back to change) Note here that the first 8 columns get the initial byte substring (@bitmap, 1, 1), each column corresponds to a bit, 5th column 00010000, 16. Notice to change here. (More references in-depth understanding of columns_updated functions in SQL Server 2005) Publish Object Changes complete! ~ Now to test, in the publishi

It is not very understandable why the option to block saving changes that require re-creation of tables is included in SQL Server 2008 and later versions. It is too troublesome to be "blocked" every time the table structure is modified. It's not convenient.　　Problem Description:The solution to the error of

Tags: LAN card service SDN view name parameter CSDN hrefOriginal: SQL Server prevents schema changes from being manually fixed in replication to synchronize fields that are added separately in the publication and subscriptionAs a result of previous needs, the replication schema change was forbidden, and a field was added to the publication and not synced to the s

SQL Server database table writing operations (database creation, table creation, and statement modification), SQL Server database creation Learning points: SQL-

SQL Server System table and SQL Server System Table Stores all the system information of SQL. Stores metadata related to database services (for example, user databases on the data

SQL Server tree query single table instance code, SQL Server single table -- TREE SQL query WITH TREE AS (-- create a virtual table SELECT

There has recently been a need to use triggers to make changes to a column of the inserted data, thus collating the trigger notation of Oracle and SQL Server for such requirements, and this article only mentions insert triggers.First we create a table:--Creating Test Table C

SQL server to determine whether a table or temporary table exists, SQL server 1. Determine whether a data table exists Method 1: Use yourdb; goif object_id (N 'tablename', N 'U') is not

Everyone's favorite direct on the code is over, say I met a few pits:The first is the beginning do not know why can only add a number, even the English alphabet can not be added, and then through the View Code of the SQL command found in the English language where there is no "surround it;"The second is every time the Chinese added after the garbled, and then know that there is nvarchar this thing, and then add a place in Chinese before adding a

Previously, PL/SQL was used as a database management tool. All executed changes must be committed to the database by pressing the submit button. Later, SQL Server Management studio was used, it is a method of automatic submission, especially in the production environment. It is always like a thin ice, worrying about an

Tags: server settings connection onchange text namespace ipad write real-time consoleSQL Server settings:ALTER database SqlDependency feature Using System;Using System.Data;Using System.Data.SqlClient;Using System.Windows.Forms; Namespace WindowsFormsApplication1{public partial class Form1:form{Public Form1 (){InitializeComponent ();} private static String conn = "database connection statement";static Sql