sql server query

Oracle|server The T-SQL is the language engine of Plsql, while Oracle's language engine is the same. Both of these query languages extend the ANSI SQL-92 standard to provide additional support. Almost all of the applications you create use these

19.2.1 Understanding SQL Server Profiler SQL Server Profiler is a graphical real-time monitoring tool that helps system administrators monitor the behavior of databases and servers, such as the number of deadlocks, fatal errors, and the tracking of

I often hear people ask this question: "Should I use a DataReader class or a DataSet class in a ASP.net Web application?" "I often see this misconception in many articles and newsgroup postings that DataReader (SqlDataReader or OleDbDataReader

as the user's demand for enterprise-class high-performance databases grows, users often convert to a client-server environment in Microsoft SQL Server from the file-server environment of the Microsoft Access jet engine. Access Upsizing Wizard in

In a large database, performance has become one of the focus of attention, how to make the database efficient and efficient operation of the vast number of database managers and developers must consider the problem. Performance is a measure of

The day of the wrong beginner SQL, feel like just learning to walk, gait can be, stumbling. I fell a lot of ridiculous somersault. Take out everyone to entertain, also mention each other wake up, such a mistake we can try to avoid. Look at this

SQL Server has two types of backup, one is to use backup database to back up the file, the other is to directly copy the database file MDF and log file LDF way. In this article, we will mainly introduce the latter's backup and recovery. (This

In the database query, there is a complete query and fuzzy query points. SQL Fuzzy query, using the like comparison word, plus the wildcard characters in SQL, please refer to the following: 1, like ' mc% ' will search all strings (such as McBadden)

Things started very simply. Megaware's marketing department wants a new Web site to publish documents, and the development team feels that using a SQL Server 2000 database as a document storage repository makes things easier. Steve is Megaware's

access|server|sqlserver| Data | The database executes SQL statement implementations by using SQL Server's Query Analyzer: I. Import access data into SQL Server Executing the following statement in SQL Server enables you to import data from the B04

Q: I recently found that many of the entries in the sysindexes Index table were not created by myself. Listening to colleagues say that they are not real indexes, but rather statistics created automatically by the SQL Server query optimizer. How do

access|excel|server| Data | Conversion familiar to SQL Server 2000 database administrators know that its DTS can be exported for data import, in fact, we can also use Transact-SQL statements to import export operations. In Transact-SQL statements,

First, Introduction One of the major changes in Microsoft SQL Server 2005 is the inclusion of XML data types. This data type is the first class type, just like INT or VARCHAR, and SQL Server 2005 allows you to query and process this data type

Server The first thing to note is that the content of this article is not how to adjust SQL Server query performance (to write a book about this), but how to use set STATISTICS IO and set STATISTICS in the tuning of SQL Server query performance Time

Introduction The top part of the stack is the API or object library layer. The application is connected to the Microsoft®sql Server through API functions or interfaces exposed by the object library. Examples of APIs used to access SQL Server

Data | database | String---------SQL generation---------- A task is a multiple-condition query that uses in (X,y) when a user separates a query by commas, but an error occurs when the field corresponding to the database (ACCESS) is a character type,

SQL in use every query will generate a log, but if you do not go to clean up, it may be full of hard, the author encountered such a situation, the direct site backstage are not going to go. Let's learn how to clean this log together. SQL2005 Empty

Friday encountered the development of the request to assist in the data booking program in the single and other tables to retrieve data when retrieving the condition Mantissa is 9 of the data particularly slow. The first time to think of whether

server| View | index | performance What is an indexed view? For many years, Microsoft®sql Server™ has been providing the ability to create virtual tables, called views. In the past, these views have two main uses: Provides a security mechanism for

Recovery | data | Database If the database backed up has 2 files, respectively. LDF and. MDF, open Enterprise Manager, right-click on the instance---All Tasks-append database, then select that. MDF file, it's OK. Or, in Query Analyzer,