SQL Server

What is an index The Table of Contents page (index) of the Chinese Dictionary: just as the Chinese characters are stored in a page, the data records in SQL Server are stored on the page, typically 4K per page. In order to speed up the speed of

These days in the course of the SQL Server 2008, the first day of today, because the organizers prepared the environment is to use the same virtual machine, and then distributed to many experimental machines, with Sysprepare This tool, modified the

I. Demand In managing a database, we often need to control the access of a user to a database, such as the right to access a table for that user, even the crud permissions, and, to a lesser extent, access to a few fields. Writing this article is a

First, design instructions The purpose of this automation is to use a fixed number of partitions (partition number 01~05) to save data alternately and repeatedly, and when the last partition is full, we will empty out the partition of the oldest

For a variety of reasons, people who make security settings often do not understand the true value of the data, so they cannot properly protect the data. It is important for a database administrator to limit your data to the people you need to

Rea Hat provides a similar tool for SQL Storage Compress, and boasts a compression ratio of up to 90%. The SQL Storage Compress provides a 14-day usage version, and the installation starts the Hyperbac control Service after downloading. This service

Method One In general, the contraction of the SQL database does not greatly reduce the size of the database, its primary role is to shrink the log size, you should do this periodically to avoid the database log too large 1, set the database mode

Analysis Management Objects (AMO) is the object Model Library of SQL Server SSAS, which allows easy access to and control over objects in SSAS, including Cube,datasource, DataSourceView, Partition, Measure, Dimension, Assembly, role, and DataMining

The original database has many types of data default values are null values, for later in the actual development process with a lot of unchanged. This null is actually good, I think can save the database space, in the new data can also improve the

Cursor Concepts In database operations, we often encounter situations where one record is read from one result set to another. So how do you solve this problem? Cursors provide us with a very good solution. A cursor (cursor) is a data buffer that

Strictly speaking, having does not require a child table, but having no child table has no practical significance. If you only need a table, then you can use the WHERE clause to achieve all of your goals. For practice, having presupposes at least

SELECT @ @SERVERNAME, serverproperty (' SERVERNAME ')--default instance Use masterGo --Set two variablesDECLARE @serverproperty_servername varchar (@servername), varchar (100) --Obtains the Windows NT server and the instance information

Call the SQL statement to implement a backup restore of SQL Server, including full and differential backups, because it takes a certain amount of time to perform a backup restore, so you need to set the CommandTimeout parameter. BACKUP DATABASE

Link Database Code Import java.sql.*; public class Connect { Static Connection Conn; static Statement SQL; Static ResultSet Res; Static String drivername= "Com.microsoft.sqlserver.jdbc.SQLServerDriver";

Reference Original: http://www.cnblogs.com/tjy9999/p/4494662.html1. Nonclustered indexesSET STATISTICSIo on SET STATISTICSTime on --1. No index (logical reads 568)SELECTFirstName, LastName fromDbo. ContactWHERELastName like 's%' --To create a

How to handle large transaction operations in SQL Server transactional replicationWorking mechanism of transactional replicationTransactional replication is implemented by the SQL Server Snapshot Agent, the Log Reader Agent, and the Distribution

A plugin was used in a recent project where the connection database was configured with JDBC and the port number was used to enter the URL. The impression in the use of SQL Server does not seem to mention the port number, on the Internet to read a

SELECT (total_elapsed_time/execution_count)/1000 n ' Average time ms ' , total_elapsed_time/1000 n ' Total time spent MS ' , total_worker_time/1000 n ' Total CPU time MS ' , total_physical_reads n ' total physical reads ' ,

SQL Server Stored ProceduresA stored procedure in Transact-SQL, very similar to a method in the Java language, can be called repeatedly. After the stored procedure executes once, the statement can be cached so that the statements in the cache are

CREATE TABLE Mytable_yq (Document varbinary (max), Yq varchar (20))--select @xmlFileName = ' C:\TestXml.xml 'INSERT into myTable (Document)SELECT * FROMOPENROWSET (BULK N ' E:\20110330110932_61311.jpg ', Single_blob) as XMLDATAINSERT into myTable