The solutions to the four most common errors in SQL Server connection are as follows:
1. "SQL server does not exist or access is denied"This is the most complex. There are many causes of errors and there are many aspects to check.
Generally,
If you carefully track the login process of the SQL Server database server, you will find that password computing is actually very fragile. The weak password of the SQL Server database reflects two aspects:
1. Password Encryption during network
Ms SQL Server provides many database repair commands that can be attempted when the database challenges or some cannot complete the read. 1. After DBCC checkdb restarts the server and does not perform any operations, run the following SQL statement
1. UseProgramTo minimize the number of accesses to the database. By searching for parameters, You can minimize the number of rows accessed to the table and the result set, thus reducing the network burden; separate operations should be processed
Check whether the IP address of the ping server can be pinged.
This is to see whether the physical connection to the remote SQL Server 2000 Server exists. If not, check the network and check the configuration. Make sure that the IP address of the
The default datetime format of the Chinese version of SQL Server is yyyy-mm-dd thh: mm: Ss. Mmm. For example: Select getdate () 11:06:08. 177 This is inconvenient for people who want to migrate data between different databases or get used to
Delete stored procedure
You can delete stored procedures when they are no longer needed. If another stored procedure calls a deleted stored procedure, Microsoft SQL Server 2000 displays an error message when executing the call procedure. However,
SQL Server service broker-
Message Queue Service broker is a message service integrated in SQL Server 2005/2008, allowing database applications
Program One-way or two-way message exchange is easy. Two important advantages of service broker are: (1
Drop procedure propageset
Go
Create procedure propageset@ TB varchar (50), -- table name@ Col varchar (50), -- pagination by this column (it must be a unique character, such as the identification seed)@ Colorder varchar (50), -- the field to be
Sometimes, in order to make the application
Program It runs faster, and all the work is to make small adjustments here or there. Ah, but the key is to determine how to adjust it! Sooner or later, you will encounter this situation: the SQL query in
How to locate the target user is a very important topic in any business unit, especially in the case of limited budgets, how to get the maximum benefits of the activity, target User positioning is an important means.
This article describes how to
After I wrote "select between SQL Server express and compact", some friends in the garden asked SQL Server Lite version (sqlce) does not support ASP. NET? At that time, I was not sure. I did not test it myself, but I felt strange and could not
Find all columns with the same column name (regardless of type and accuracy) from different tables. Note that the number 3 in the last column is the number of tables to be queried.
Select a. Name, count (1) as TT from syscolumns A, sysobjects B
Original address: http://www.aspnetlibrary.com/articledetails.aspx? Article = Using-CLR-to-access-. NET-functions-in-SQL-Server
[Translation] Using CLR to call. NET methods in SQL Server
Original article released on: 2007.05.17Author: Mark
Today, my colleague asked me a question about SQL Server's internal storage structure, so I wrote this blog and summarized it. The problem is as follows:
First, we create two tables. The column length of one table is 4039 bytes, and the length of
SQL Server Index Structure and usage (4)Author: freedk
I. An in-depth understanding of the index structureIi. Improve SQL statementsIii. General paging display and storage process for small data volumes and massive data
Importance of clustered index
Vi/etc/freetds. conf
Copy codeThe Code is as follows: [global]
# TDS protocol version
Tds version = 8.0
Client charset = UTF-8
# A typical Microsoft server
[Server55]
Host = 192.168.1.55
Port = 1433
Tds version = 8.0
Vi/etc/odbc.
1.1.1 Summary
If we want to optimize the database, we can optimize the database system using the following five methods.
1. Computer hardware optimization2. Application Optimization3. Database INDEX OPTIMIZATION4. SQL statement Optimization5.
However, Microsoft SQL server has an important defect in processing such indexes, that is, the operations that should have been compiled into index seek are compiled into index scanning, which may cause serious performance degradation.
For example,
However, before SQL server 2005, SQL SERVER 2000 did not provide this direct function for us to use. The same is true for ACCESS.
The following describes the implementation process of data ranking in two cases. The test data is as follows:
The
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