Database Administrator

In the DB2 database, cataloguing catalog) is difficult to understand. I often do not understand this word when I was learning DB2, until now, I personally feel that the term catalog in DB2 is not very well used. Specifically, cataloguing includes

Because it is mainly used to manage the database platform, it has had a lot of dealings with the relevant technical staff of various departments of the company. Then, I learned a lot about the concept of the database from the daily communication, if

You need to query the content of the uploaded file as required by the project. By using MSDN, we learned that the Windows Index Service can retrieve the full text of a file and query it through SQL Server. The project combines the two to achieve

When designing a database application, you may feel that the database connection type is not important. If so, you are wrong, the following lists some reasons why the connection type is so important: ◆ Compared with other tasks executed by database

Writing SQL statements is inferior to writing. NET programs. There are no smart prompts. You need to remember keywords, functions, or constantly Copy table field names, user-defined functions, stored procedures, and so on. However, in VS2010, we can

The question of 'how MySQL connects to a remote SQL 'has been considered for more than half a month, previously, I had been struggling to find a direct method similar to how I made 'SQL connection to remote mysql' and find a suitable

In this article, I will introduce how to write your code to improve the reuse of cache plans. Understand the impact of a cache plan or reusing an existing plan space time and comment, which will help you reduce the number of your application cache

BKJIA exclusive Article] I recently upgraded MySQL from an earlier version of MySQL 5.0 to Percona Server 5.1. This is a classic upgrade scenario. Some exceptions may occur during the upgrade process. The master server and several slave servers must

BKJIA: Do you understand the value of time? I mean, really understand the value of time. Time is definitely your most valuable asset. Once time passes, it will never come back. As a DBADatabase Administrator: Database Administrator), your skills,

During team development, generally, each person in the team only needs to install a client. There is no need to install an Oracle database server, and the database server is shared. At this time, we need to configure the client. The client

Basic Principles 1. Use the DBMS_JOB package to submit the primary processing stored procedure as a task to the task queue. 2. The main processing and storage process puts the processing situation in the pipeline through the DBMS_PIPE package

The principle of user authentication is simple: first, you need to enter the user name and password on the page. Of course, users who are not registered must first register. Then, you can call the database to search for users. If yes, confirm it. If

1. What is a secure system? Security construction is a long-term and excellent job. As a standard enterprise system, we believe that the tax system should have the following security features: ◆ High Availability◆ Access control for sensitive data.◆

Oracle introduced special triggers starting with Oracle8i. These triggers are not DML events associated with special DML events, such as INSERT, UPDATE, and DELETE ). These system-level triggers include database start triggers, DDL triggers, and end-

In Oracle databases, DBAs can observe tables or views to understand the usage of the current space and make possible adjustments. I. Free Space for tablespace By observing the free space of a table space, you can determine whether the space

The lifecycle of a database system can be divided into three stages: design, development, and product. The lowest cost and maximum benefit of database performance optimization during the design phase. In the final stage, database performance

1. Introduction Today's IT environment is experiencing dramatic changes, and companies that rely on a single relational database management system (RDBMS) to manage data are gradually decreasing. Analysts report that more than 90% of companies today

With MySQL, you can choose between the three basic database tables. When creating a table, you can tell MySQL which table type it should use for the table. MySQL will always create a. frm file to save the table and column definitions. Indexes and

The following is an example of backing up a database: 1. Tables involved in pre-Backup read locks Mysql> lock tables tbl1 READ, tbl1 READ ,...If you use the -- lock-tables option in the mysqldump utility, you do not need to use the preceding SQL

BKJIA quick translation] in order to achieve a successful success, I will take some preparatory steps and they will be required to check what happened, these steps include running the plustrce SQL script, creating an "EXPLAIN_PLAN" table, granting