Database Administrator

MySQL is called one of the most widely used open-source databases in the industry, and the pluggable storage engine is one of its most important features, understanding and applying the storage engine will make it easier to use the enterprise-level

There are many ways to install MongoDB. you can install MongoDB in source code or in CentOS using yum source. Because MongoDB is updated fast, I prefer the yum source installation method. The installation steps for 64-bit Centos are as follows: 1.

SQL Profile provides other information except system statistics and object (table and index) statistics for an SQL statement, such as the running environment and more accurate statistics, to help the optimizer select a more suitable execution plan

MySQL Workbench is a visual database design tool recently released by MySQL AB. This tool is a dedicated tool for designing MySQL databases.The physical data model you created in MySQL Workbench is called. A physical data model is a data model for a

1. Introduction SQLite is an open-source embedded Relational Database Engine for SQL database with self-contained, zero configuration, and transaction support. It is highly portable, easy to use, compact, efficient, and reliable. Unlike other

This article is sponsored by the men's family and first launched in the dark world. Yesterday, I introduced the permissions after Server-u ftp is integrated with Windows users. Today I will introduce it again. Integration of Server-u ftp with Mysql

During database initialization, an actual problem that administrators need to face is how to import large amounts of data into the database system. Some large-capacity data import and export tools are provided in the SQL Server database for the

This document describes how to create a SQL Server Analysis Service Project, a data source, and a data source view. 1) Basic BI concepts One BIBusiness intelligence) system can have up to five layers: 1. A data source layer), which consists of

Introduction: In Step-by-Step design of your database 3, we discuss the components and semantics of the basic object link model. These concepts are very important and are the basis of today's lecture. Before starting this article, we suggest you

The Informix Dynamic Server provides two levels of access privileges to ensure database security. Database privileges control the access to the database and the right to create tables and indexes on the database. TABLE privileges specify the actions

Informix Dynamic Server is also called multipart storage. Its principle is to distribute the records or indexes in a data table in different disk regions according to rules, to store data on multiple disks, we can improve database efficiency by

Before creating an SQL Server 2000 failover cluster, you must Configure Microsoft cluster service (MSC) and use the Cluster Administrator in Microsoft Windows NT4.0 or Windows 2000 to create at least one cluster disk resource. Before running the SQL

The interconnection of different database platforms is generally called the heterogeneous service of databases. Currently, all major databases can achieve such Heterogeneous Interconnection, but the specific implementation technologies of different

The internal replication function of MySQL is implemented between two or more servers by setting the master-slave relationship between them. One of them serves as the master server and the other as the slave server. I will discuss in detail how to

The advantage of parallel query is that it can process query jobs through multiple threads, thus improving the query efficiency. The SQL Server database provides the parallel query function for database servers with multiple CPUs to optimize the

To allow automatic database management, the administrator needs to pre-define predictable management tasks and conditions for sending these tasks. When the specified conditions are met, the database automatically runs the operations specified by the

As the amount of data is constantly increasing, the CPU is constantly strong, and the dual-core and quad-core features are constantly changing, a time-to-space optimization technology should become increasingly popular. Therefore, Data Compression

When using a report, you need to add parameters to narrow the report scope for better analysis. You will often see that you need more than one parameter. The second parameter may depend on the first parameter. Generally, you are required to update

OLAP options in Oracle9 I Database Release 2 introduce the analysis workspace and truly integrate the relational and multidimensional data types in the same Database. So far, the only way for developers and DBAs to use the analytic workspace is to

MySQL database performance optimization is the main core of this article, from database optimization design to specific operations. Good optimization can greatly improve the server performance. I hope this article will help you. 1. MySQL performance