Database Administrator

Requirement Description Because the LOGRETAIN = ON database configuration is used, the database log files will not be automatically deleted or recycled by the database from the active log directory, and more log files will be stored in the active

1. log on to Windows NT as Administrator. You need the Administrator permission to create, start, and stop services. 2. Open the command prompt. 3. Use the dbsvc utility to create a service. The restrictions are as follows: You must use the-a switch

I. Database Name It is the name of the database you created when installing the oracle software, or the data you created after installation. It is mainly used to install multiple databases in an oracle database, The distinction between them. A

After the installation of Active Perl5.10 is downloaded from the official website, a simple Perl script is written. Only one file copy module is referenced. When the Perl interpreter is called to run the program, A bunch of errors are reported.

Sybase adaptive server enterprise 1500 FOR WINDOWS Prerequisites: windows classic theme. If you have installed sybase incorrectly before, uninstall the sybase folder and related registry keys !) Run setup.exe for installation. If you need to use

In many cases, we will set a field in the database table: ID, which is an IDENTITY, that is, an auto-increment ID. When the concurrency is large and this field is not the primary key, it may repeat this value; or in some cases, for example, an error

I have been engaged in enterprise system development for many years. In system workflow analysis, I have to analyze SQL statements. When the system accumulates to a certain scale, the database tables involved will grow exponentially, therefore, we

First of all, I am talking about the conversion between ACCESS2000 and SQL2000, and I have not tried any other products yet. I hope you can experiment more and there is definitely a solution. Conversion Method 1. Open "database source" in

I. Partitioning Based on actual experience, the vast majority of data space in a large database is occupied by a small number of tables. To simplify the management of large databases and improve the query performance of applications, you can use

Many Internet applications provide full-text search functions. Users can use a word or word segment as a query item to locate matching records. In the background, these programs use the LIKE statement in a SELECT query to execute this query.

If you are creating a Microsoft. NET network and the backend is running an Oracle database, you should migrate the backend to SQL Server. The core of this issue is not to compare the performance of databases, but to find the most suitable tool for

1. Install oracle 10g r2 Software 2. Install the latest oracle 10g patch. I used the patch to upgrade to 10.2.0.2. 3. Run Pre-Upgrade Information Tool. It is used to analyze the operations you need to perform before upgrading to 10 Gb, such as the

I. Necessity With the development of database technology in recent years, Informix Dynamic Server represented by Unix platform and ms SQL Server represented by NT platform have been widely used. In a public environment, there are a large number of

Oracle 9i is newly installed today. After Tomcat is started, the relevant oracle page is displayed at http: // localhost: 8080, management tools-Shut down the http service of oracle in the service and start tomcat again. It seems that there is a

Problem:The website cannot be accessed. After the host is restarted, the website runs normally. Solution: The database is deadlocked. Cause of deadlock: Extracting and querying the corresponding data and modifying the Stat table are all operations

If you have some creative thinking on some special business issues, you will often design solutions in SQL. For example, the company can select one of the following two methods to make the requested fee consistent with the paid fee. The first method

Distributed databases were generated in the middle of the 1970s s when enterprises, groups, and organizations were more widely used in databases and database technologies and computer networks developed and matured. Because distributed databases

Who can connect from there? You can allow a user to connect from a specific host or a series of hosts. There is one extreme. If you want to connect only from one host, you can limit the permissions to a single host: GRANT ALL ON samp_db.*

SQLSERVER's table value function is a new feature of SQLSERVER 2005. It is easy to use, just like a separate table, and is widely used in our system. There is an SQL Server Table value function for obtaining customer data. If you log on as an

Summary What is client data storage? Simply put, data is stored on a specific client, reducing the number of requests to the server. Why is client data storage required? In the response time, the time taken by the http request response cannot be