sql server auditing best practices

Misunderstanding #4: DDL triggers (introduced after SQL Server 2005) are INSTEAD triggers This is wrong The implementation principle of DDL triggers is actually an AFTER trigger. This means that a DDL operation is performed first, and then the trigger captures the operation (of course, if you write Rollback in the trigger, it may also be rolled back ). Rollback also means that the trigger is not as li

Myth #4: DDL triggers (introduced after SQL Server 2005) are instead OF triggers This is wrong. The implementation principle of DDL triggers is actually an after trigger. This means that the DDL operation occurs first, and then the trigger catches the action (of course, if you write a rollback in the trigger, it can be rolled back). The presence of rollback also means that the trigger is not as ligh

Tags: audit auditing SQL ServerSQL ServerAudit (Audit)--audit access to database objects Task 1: Create a login account and grant the appropriate permissions Step 1 : Open SSMs, enter the following statement, create a login account Ultrasql, grant access to Person.person and Person.password permissions to the ADVENTUREWORKS2012 database.Use mastergo--create login ultrasqlcreate login ultrasqlwith password=n

SQL Server 2014 new features-buffer pool extension (Extension)Supported versionsBuffer pool Extension This feature is available only for 64-bit SQL Server enterprise/business intelligence/standard versions.Terminology interpretationBufferIn SQL

. Disk Configuration/Best practices: In general, you should keep log files and data files separate for better performance. I/O characteristics for heavily loaded data files (including tempdb) are random reads. For log files, sequential access is required, unless the transaction needs to be rolled back. The built-in disks can only be used for database log files because they have good performance for sequential I/O, but low on random I/O performance.

What does SQL Server non-clustered index bring to us? SQL Server Profiler is used to track the execution of SQL statements when a page is accessed. Because the application is very simple, three SQL statements are detected during

Not long ago, I suddenly saw a colleague still using SP _ to start the stored procedure on SQL Server. So I gave him the msdn link, which is a typical example. A long time ago, I helped a company with a stored procedure. It was said that it would take many seconds to execute that stored procedure, and that stored procedure was written in a temporary table using an endless loop, then, you can use a comple

Regardless of your professional level, it is often helpful to learn new skills and best practices from other IT experts. This article contains some advanced SQL Server development skills I have encountered. I hope some of these skills will be helpful for your database development and management. Make sure that the data type in the Code is consistent with the colu

Regardless of your professional level, IT is often helpful to learn new skills and best practices from other IT experts. This article contains the advanced SQL Server development skills I have encountered. I hope some of these skills will be helpful for your database development and management. Regardless of your professional level, IT is often helpful to learn n

Label:In auditing, it is sometimes necessary to modify the table structure of Oracle and then create the table structure in SQL Server, and then import the data into SQL Server, in the process of modifying the table structure. Manual modification, the most stupid method, or

and recommendations provided in optimizing tempdb performance. How to monitor tempdb usage? RunningOut of disk space in tempdbCanCause significant disruptionsIn the SQL Server production environment and can prevent applications that are running from completing operations. You can useSYS. dm_db_file_space_usageDynamic management view to monitor the disk space that is used by these features in the tempd

analysis and prediction of various queries. Only by correctly combining the index with the program can the best optimization solution be produced. This article analyzes and practices the performance of SQL Server indexes. I. Use of clustered indexes A clustered index sorts the actual data on a disk by the values of one or more specified columns. Because the inde

all the indexes that do not match the existing one. Although it is quite risky for running systems. However, you can perform a critical test. 　　 The specific solution is as follows: First, regularly capture the cache execution plan on the Hot Standby Database Server (I originally wanted to capture the SQL and found that some SQL statements are really not support

capture the cache execution plan on the Hot Standby Database Server (I originally wanted to capture the SQL and found that some SQL statements are really not supported, and there is no possibility of automatic resolution ), then, together with the execution times of the execution, that is, the statistical information of the table, it is down to the data table of

What happens in SQL Server that causes its execution plan to turn from index lookup to index Scan (index Scan)? The following from a few aspects of context-specific scenarios to do the next test, summary, induction. 1: An implicit conversion causes the execution plan to change from index lookup to index Scan (index Scan) Implicit conversion would cause index scan instead of index seek. While implicit conv

In normal project development, the paging stored procedure uses a large number of stored procedures. top is often used in the SQL Server paging stored procedure, and RowNum is often used in Oracle. Now, there is a UserInfo table, where one field is UserId and the other is UserName, where UserId increases automatically and step size is 1. there are 30 data records in the table, and the UserId value is not ne

In normal project development, the paging stored procedure uses a large number of stored procedures. Top is often used in the SQL Server paging stored procedure, and rownum is often used in Oracle. Now, there is a userinfo table, where one field is userid and the other is username, where userid increases automatically and step size is 1. there are 30 data records in the table, and the userid value is not ne

the cache execution plan on the Hot Standby Database Server (I originally wanted to capture the SQL and found that some SQL statements are really not supported, and there is no possibility of automatic resolution ), then, together with the execution times of the execution, that is, the statistical information of the table, it is down to the data table of a backu

, and the above operations are reversed when the temporary table is deleted. once the index is created/destroyed in a large amount of concurrency, internal competition will arise. although the cache policy of tempdb can alleviate the IAM, data page allocation, SQL Server tempdb principle-Cache Mechanism parsing practices, the competition remains. We can see that

I recently saw a small example of SQL Server, and found that it can be used as an introductory question for SQL server. The questions are as follows: For example, there is a Contract Table Contract Id Name Total Buget 1 Contract name 100 2 Contract name