SQL Server

Most people know that OLE DB is used to read data to a dataset, but how to deal with a dataset after reading is strange. Many people use loops to splice SQL, which is not only error-prone but inefficient, System.Data.SqlClient.SqlBulkCopy is still

In most cases, upgrading your database to SQL Server 2008 can improve query performance. However, if you have mission-critical queries that have been carefully optimized for performance, it is a good idea to create a planning guide for each query

Upward expansion and plane expansion Optimize the application before scaling up or scaling out. Optimize your application before you have an upward expansion and plane expansion. You can reduce invalid locks, use parameterized queries, add

JDBC is already included in a later version of JDK1.1 and can be used for access to the database. for accessing MSSQL. After an ODBC data source is established, JDBC is used to implement access to the database. The main related classes are in the

In a Java file, when you connect to a SQL Server database, you need a driver file to connect to the database. Copy a file Jtds-0.6.jar in the Lib folder under the path where you install the JDK, and set the classpath in the environment variable,

It's written in front. This series of articles is divided into four parts: 1. CLR Overview. 2. Perform CLR integration programming in Visual Studio and deploy to SQL Server, including stored procedures, triggers, custom functions, custom types,

"DBA Common management Tools" SSMS, BIDS, SQL serverprofiler ... One, SQL Server common management tools 1. SQL Server Management Studio Used to access, control, manage, and develop all of the components of SQL Server, such as editing and

First, the preface See a document about SQL Server table partitioning on MSDN: Special guidelines for partitioned indexes, it's harder to understand the meaning of a document if you don't have actual experience with the table partition. Here I will

This article is also suitable for Oracle DBA and MySQL DBA Reading Bare devices apply to Linux and Windows In Oracle and MySQL is also supporting the bare devices!! Introduced Everybody sees this title must be confused, bare equipment?? A nude

Scene: A recent DB server occasional CPU alarm, my email alarm threshold (Please read yù) value set is 15%, the beginning is not the case, thinking is what the statistical category of inquiries, and then more frequent. Explore: I decided to check

Brief introduction After SQL Server 2012, the window functions have been greatly enhanced, but for many developers, the window function is not well understood, resulting in such a powerful function is wasted, so this article mainly discusses the

The 16 and 10 transformations encountered in recent industrial control projects are easier to implement in. NET, where no direct conversions are found in SQL Server, especially long numbers that are out of range, that is, unsigned 64-bit integers

In database-related projects, such as database maintenance, performance alerts, program error alerts, or notifications, you will use the ability to configure email messages in SQL Server. In a BI project, this functionality is also used more. For

Sybase SQL Server is an RDBMS of a multiple-library architecture, which is broadly structured as follows: 1. Database A database used by the server itself, or a database of Management servers and user databases. Sybase created four system

How do you improve the performance of your SQL Server database? The author thinks that we should follow the order from outside to inside to improve the running performance of the database. The following figure: First layer: network environment.

Problem: The actual size of the database is 600MB, the actual size of the log file is 33MB, but the log files occupy space for 2.8gb! tried a variety of ways, shirnk DATABASE, TRUNCATE log file, there is no way to reduce the files. Anyway, this

The first is to load the SQL Server 2008 RC0 Media, if it is MSDN or TechNet subscribers can download directly in the subscription site, if there is no subscription account can go to Microsoft's download site to download, address is

Environment: SQL Server 2008 R2 Problem: Output information at query time Solve: One: Use the print function. Such as: print ' HelloWorld '; Of course, the print function will not only be able to print strings, but also print integer data or

The Data warehouse is usually the largest database within the enterprise. Building and managing systems is a big task that can quickly become unmanageable because of the incompatible input that many users provide. Improving the system's query

When we want to count the total number of records in a datasheet, we use the T-SQL function count (*). If this function is executed in a large table containing millions of rows, it can take a long time to return the total number of records in the