SQL Server

This article supporting source code We have introduced three methods for merging data stream source and database data. That is, the data in Excel and the data in the database to synchronize, the existence of the data to update operations, do not

This article supporting source code We have implemented the import of data from Excel into the data flow target. That's the database, but we just simulate the data that's not duplicated, which is the data that doesn't exist at this time in the

Indeed, database maintenance is often given to professional database administrators, but as a developer, you may occasionally need to do this work temporarily. So, try these two SQL Server maintenance tips: Easily change the database owner,

When installing SQL2000, the system often prompts: the operation is suspended and requires the computer to be restarted, as shown in Figure 1: Figure 1 After restarting, the problem persists when you install again. Solution: 1: In the Start

All information about the SQL Server database is stored in its system table. I wonder if you've spent more time checking system forms because you're always busy with user forms. However, you may need to do something unusual occasionally, such as all

Another powerful new feature of SQL Server 2005 is database snapshots. A database snapshot is a read-only copy of a database that is a map of all data in a database, and determines its content by the point at which the snapshot is executed. These

Environment: Development of the Ide:jbuilderx Database used: MS SQL Server 2000 Database driver used: Jsql Driver (JDBC 3.0) Description 1. Hibernate explicitly "Microsoft Driver (not recommended!)" In the configuration file, so use Jsql Driver

Many times, when we plan for the space of the SQL Server database, or to the storage space, we need to estimate the size of the required database space, the simplest way to estimate the future is to look at the past trends, which is often the most

The author once interviewed the DBA, "Why is tempdb faster than any other database?" So that more than 95% of the candidates have a blank face. As an important feature of SQL Server, tempdb has all along been familiar and unfamiliar to it.

Mistaken idea #25: Several mistaken ideas about filling factor It's all wrong. 25a) filling factor is always present. No, through Books Online you can see (translator: I did not find this phrase in the new version of BOL): Important: The fill

SQL Server Data tools–business Intelligence for Visual Studio 2012 installation Prompts "The CPU architecture ..." solution For now, the rapid increase in CPU frequency and the rapid growth of the number of CPUs have not been able to promote the

To wrap the print statement inside the output, you can do this /* SQL newline tab char (9) newline character char (a) return char (+)/ print ' Test ' +char + ' Name ' print ' Test ' +char + ' age ' PRINT ' Test ' +char (9) + ' Tel '

Manually grow the log file, which is actually modifying the size of the log file in megabytes The log file size below is set to 2048MB ALTERDATABASE[GPOSDB] MODIFY FILE (name=gposdb_log,size=2048) EXEC sys. [sp_helpdb] @dbname =

Part of the database tuning effort involves troubleshooting IO issues, such as the speed of IO or the inability of RAID levels to respond to fast requests under high concurrency. The most common is to see the disk's response speed per read and write,

For a system administrator, to manage multiple database servers in a network at the same time or multiple database servers that are divided into different networks in the Internet, the problem of accessing these database servers at the same time is

Building a table To test this example you need a table with data (you can create it in your current library or create a new one), and here's the structure: 　　 Column Name　　 Datatype　　 Purpose　　 ID　　 Integer　　 identity column Primary key　　 IMGTITLE　

Create　function fun_getPY ( 　　@str nvarchar(4000) ) returns nvarchar(4000) as begin 　declare @word nchar(1),@PY nvarchar(4000) 　set @PY='' 　while len(@str)>0 　begin 　　set @word=left(@str,1) --If non-Chinese characters, return the original character

In the application system, especially in the online transaction processing system, the data query and processing speed has become the standard to measure the success or failure of the application system. And the use of index to speed up data

This paper introduces the storage mechanism and access method of MIS SQL Server for image data. Aiming at the VB development tool, this paper introduces a method of accessing the image data in MIS SQL server by using the GetChunk method of ADO Field

This article describes the two options for extending the database system outward to achieve higher scalability: horizontal data partitioning and vertical data partitioning. When I mention scaling out the database system, I'm actually just talking