Indexes do not always take effect, such as the following, which will invalidate the index :
If there is an or in the condition, it will not be used even if there is a conditional index ( which is why the use of or is minimized )
Note: If you want to use or, and you want the index to take effect, you can only
protocol is based on the HTTP protocol, and SOAP is based on XML and XSD, and XML is the data encoding method of soap. A metaphor: HTTP is the normal highway, XML is the middle of the green barrier and both sides of the fence, soap is
Tags: blog http io ar os using SP for strongpartition table in SQL Server 2005 (a): What is a partitioned table? Why use partitioned tables? How do I create a partitioned table? Category: SQL Server2009-12-03 10:17 15325 People read comments (+) Favorites report SQL Server Database 2010schemefunctionnullIf the data
The blade is a Low-cost server platform for HAHD (high availability height density, highly available high-density) designed specifically for special application industries and high-density computer environments, where each "blade" is actually a system motherboard, Similar to a separate server.
In this mode, each mothe
What is a proxy server
A Web proxy server is an intermediary entity of a network. The agent sits between the Web client and the Web server and acts as a "middleman" role.
The proxy server
At present, the server CPU still according to the CPU instruction system to differentiate, usually divides into the CISC type CPU and the RISC type CPU two kinds, later appeared a 64 bit vlim (Very long instruction Word Ultra long instruction set schema) instruction system's CPU.
First, CISC type CPU
CISC is an abbreviation for the English "Complex instruction set Computer", which means "complex inst
What is Active Server Pages?
Active Server Pages actually extend some additional features to standard HTML files, and Active Server Pages contains HTML objects like standard HTML files and is interpreted and displayed on a browser
What is DNS? The Chinese interpretation of DNS is the domain name resolution service, which is the abbreviation for Domain Name service. The primary role of the DNS server is to provide resolution between the domain name and the I
1. Cluster (Cluster): A group of independent computer systems that form a loosely coupled multiprocessor system that communicates between processes through the network. Applications can communicate over a network of shared memory to implement distributed computers.
2. Load balancing (Load Balance): Start with the cluster, the cluster is a group of connected computers, from the outside to see it is a system
a data table. 2, sale is the data table name. 3, () is the field in the table, there is no difference between the content and the creation of a normal data table, the only thing to note is that you can no longer create a clustered index. The simple truth is that clustered i
If the data in one of the tables in your database meets the following criteria, you should consider creating a partitioned table.1. There is a lot of data in a table in the database. What are many concepts? 10,000 lines? 20,000 lines? Or 100,000 or 1 million? This, I think is the question of the benevolent see and the beholder. Of course, when the data in the dat
What mail server is better for linux-Linux Enterprise Application-Linux server application information, the following is a detailed description. Recently I want to learn about the mail server in LINUX, but I don't know
What is the website Verification Code generally placed on the server? Why? Are the website verification codes of javaphp.net stored in the same place? What is the website Verification Code generally placed on the server? Why? Are
and maintaining and managing it on behalf of you can effectively prevent disputes, improve the sharing success rate, ensure the standardized and orderly sharing behavior, and ensure the continuous integrity of contracts, to maximize the protection of the rights of all tenants.
What is the difference between a shared server and a virtual host?
In the form of oper
What is CACHESTORES often seen in SQL Server? When we execute the following SQL statement in SSMS to clear the SQL Server cache, we will see some information in SQLERRORLOG DBCCFREEPROCCACHE. You can see the terms cachestore, objectplans, sqlplan, boundtress, and other terms cachest.
I often see cache stores in SQL
If the data in one of the tables in your database meets the following criteria, you should consider creating a partitioned table.1. There is a lot of data in a table in the database. What are many concepts? 10,000 lines? 20,000 lines? Or 100,000 or 1 million? This, I think is the question of the benevolent see and the beholder. Of course, when the data in the dat
WIN 2008 various versions What is the difference between versions of Windows Server 2008 (Standard Edition) Features: for SMBs, supporting Windows Server 2008 features in the environment is the longest deployed version, unlike other versions a, 32-bit editions support up
What is the common use of Linux server systems for PHP? Are there many Ubuntu servers or red hats ??? What is the common use of Linux server systems for PHP? Are there many Ubuntu servers or red hats ???
Reply content:
1, the computer printer error, the printer appears RPC server is not how to do.
2, open the control surface version, find services.
3, the list of services found print spooler, found this did not start (not running).
4, right key point to start (automatic) on it, generally this can be printed (or enter the property can be more settings).
5, th
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