SQL Server

We all know that SQL server log files are used to record transaction logs. However, the SQL Server database engine divides each physical log file into multiple virtual log files for management. In addition, the number of backlogs affects the

DBCC commands are very easy to use, but there are a lot of syntax for commands. How can we quickly remember them? Whether or not all data needs to be backed up. Actually, you don't need to. You only need to know the role of each command and remember

We once encountered a problem where our database was of a higher version, but the developers said their software was not good at supporting the database of a later version. At that time, I asked them if they were using any special features, such

Today, I want to write a function to get the student's admission year, and the function needs to get the current year's academic year, getdate () is required, but an error occurs during the CREATE FUNCTION;I would like to share my experience with

I believe many people are using ASP. NET 2.0 + sql2005 + aspnetdb (membership and other functions) This problem occurs: "An error occurred while starting the process of the user instance, resulting in the failure to generate a user instance of SQL

Reference http://bbs.chinaunix.net/thread-3838790-1-1.html-- BelowCodeThe length of the generated serial number is 12. The first six digits are the date information. The format is yymmdd, And the last six digits are the serial numbers.-- Create a

In. NET development, the SQL Server Stored Procedure is automatically generated: For example, add/delete/update/getsinglerow My recommended method: Advanced T-SQL: automate the generation of stored procedures for your

This is a new method. It is actually a technology that has been used for a long time! In. net, you know that you can use system. Web. Mail to send emails. Verification is supported in Framework 1.1. Private void page_load (Object sender, system.

Many people have encountered the following problems: 1. Using Log shipping, how can applications be forwarded to the secondary server if the primary server has a problem? 2. If I want to migrate the database to another server, I don't want to

Hash is used in many system designs, including OS and SQL Server, to greatly improve the system performance. In fact, we can also use the hash function of SQL Server to achieve the same effect. For example, you can create a hash index for text with

Microsoft provides some uninitialized ented trace flags to let us know a lot about backup and Restoration Information. Through the output, we can clearly see what backup/restore has done. Because these are unreceivented, Microsoft's advice is to use

I was asked recently about replication with different versions of SQL Server I. e. multiple versions of SQL Server in a replication topology. generally, Microsoft supports replication back to two previous versions. we just need to know the rules.

I have a question on the internet today: Does the SQL Server Computing column occupy space? In fact, you can find out the result by checking the msdn or Bol. When creating a calculated column, you can specify persisted as a parameter. You can use

SQL Server extended events is a newly added event processing system in SQL Server 2008. It is used to replace the original SQL trace tracking mechanism of SQL Server. Debugging is critical to troubleshooting a complex server system. Compared with

We usually need to query the total number of rows in a table. Many people prefer to use select count (*) from table. if the table data is very large, such queries are time-consuming and resource-consuming.   In fact, there are two ways to quickly

Many people have encountered blocking problems. When querying, they will see the waiting resources. What do they mean?   Compile Format Example  Table Databaseid: objectid: indexid Tab: 5: 261575970: 1In this case,

SQL Server Profiler templates http://msdn.microsoft.com/zh-cn/library/ms190176.aspx You can use SQL Server Profiler to create a template and define the event classes and data columns to be included in the trail. After defining and saving the

The SQL Server developer T-SQL functions interview questions Written by: Jeremy kadlec From: Http://www.mssqltips.com/tip.asp? Tip = 1588 ProblemIn the latest installment of the mssqltipsInterview question series we are going to cover questions on T-

  Index type Description Other information Aggregation Clustered indexes sort and store data rows in tables or views in sequence based on the clustered index key. Clustered indexes are implemented based on the B-tree

Transaction log file is a file used to record database updates with the extension LDF.In SQL Server 7.0 and SQL Server 2000, if the automatic growth function is set, the transaction log file is automatically expanded.Generally, when the maximum