SQL Server

I do the site basically have to use an infinite level of table of contents, used to organize various types of article information. This table has only three fields (Id,parentid,name), which has always been the case with no problems. It was not until

The basic theory of lock used in all kinds of large database is consistent, but it is different in concrete realization. SQL Server is more focused on managing locks by the system. When the user has the SQL request, the system analyzes the request,

This article explains why you should understand database consistency detection (DBCC), how to run DBCC, and the five extensions that apply to it. Database consistency Detection (DBCC) may be your most important tool in times of crisis. This article

I installed the SQL Server database on my computer yesterday, prompting the error "A previous program installation has created a pending file operation on the installed computer." You must restart your computer before running Setup because it is the

Microsoft's most-seen SQLServer2005 finally came on the market, bringing new features and changes that were different from previous versions. This article shows you how to deploy SQLServer2005. The installation process is quite different from the

A histogram is a statistical report that displays the frequency at which values in the rank or range of values between a minimum and maximum value appear. Let's take the students ' test results as an example to illustrate. It is assumed that 30

server| Recovery | data | database Author:david Euler Date:2004/10/16 email:de_euler-david@yahoo.com.cn Have any questions, please contact me: DB2 can enable the database to revert to a specified point in time, when the SQL Server database

The following are the referenced contents:void Restorebutton_click (object sender, System.EventArgs e){string path = Pathtextbox.text;String dbname = Dbdropdownlist.selectedvalue;String restoresql = "Use master;";Restoresql + + "RESTORE Database

Server There are two types of identifiers in SQL Server: One is the rule identifier (Regular identifer) and the other is the delimited identifier (delimited identifer). Where the rule identifier strictly adheres to the relevant format of the

server|sqlserver| Backup | compression SQLSERVER2000 Backup Example 1: (Backup) 1 Use Master 2 Declare @path = ' C:\aa\zy.bak ' 3 Backup Database Zy to 4 disk= @path with Noinit Description 1 Using System libraries 2 set the path and filename

4 levels of SQL code can be found Select menu_id,menu_name,father_id from Sys_menu where menu_id= ' or father_id=18 or--first level, level two father_id in (select M enu_id from Sys_menu a where menu_id= ' or father_id=18 ' or --level three

ASP (Active Server Pages) is a very early Web application solution from Microsoft, and a simpler programming environment that most developers of web sites are familiar with. With ASP, we can create powerful dynamic Web applications. Although the ASP

Some time ago, I sent such a problem on the Internet, now has been resolved, and now the code to share, I hope to help intranetmis enthusiasts The approach is simple: you need to nest an access connection in a SQL Server connection, and then write

Problem I'm often asked how to convert a database that resides on the physical server/sql instance to their corresponding application name. This need arises when you are ready to schedule server downtime notifications, but this is also valuable

This article explains how to use the search for left join, CROSS join, and identity values to improve the performance or scalability of a SQL Server based application. The phenomenon you will encounter: SQL queries in your application do not

I. Understanding the structure of an index The role of an index in a database is similar to the role of a directory in a book to improve the speed of finding information. Use the index to find the data, without having to scan the entire table to

As a network administrator, regardless of the size of its management networks is large or small, in the day-to-day management in addition to maintaining the smooth operation of the network, timely removal of network failures, protection of network

The OUTPUT clause in SQL Server 2005 allows you to return data to a table variable from the Modify statement (INSERT, UPDATE, delete). Useful scenarios for DML with results include cleanup and archiving, message processing applications, and other

This article illustrates the comparison of SQL Server with stored procedures from several perspectives. Why do ① use stored procedures? Because it executes faster than SQL statements. What is the ② stored procedure? With a bunch of SQL

This article first provides a complex method of compressing logs and database files. 1. Empty log: DUMP TRANSACTION library name with NO_LOG. 2. Truncate transaction log: BACKUP log database name with NO_LOG. 3. Shrink the database file (if not