Database Administrator

Goodbye to MongoDB, hello PostgreSQL Olery was founded almost five years ago. It started with the single product (Olery Reputation) developed by Ruby proxy. Over time, we began to work on a series of different products and applications. Today, our

Redis for beginners (3) -- using Redis as the cache of Mysql database, redismysql After the Mysql result set is cached in the Redis string or hash structure, we are faced with a new problem, such as what these strings or hash names are, that is, how

[Test] database system principle (II)-detailed explanation (database design and ER Model), database system principle er Everything has a lifecycle. Of course, the database system is no exception! The database design and ER model chapter mainly

PL/SQL Developer double-click table name query, pldeveloper Double-click a table. The default value is Expand/Collapse. To Expand/Collapse a table, you need to view the table data quickly. If you write select * from tab, it will be troublesome,

Manually uninstall Oracle in Windows and oracle in windows There is a problem with uninstalling the Oracle Al Installer that comes with Oracle: it is not clean, not complete, and there are some residual registries, which will affect subsequent

SQL: The Role of views; SQL views [Database] ☆★SQL: The Role of views When complicated services are involved in the actual development process of a project, we need to use an intermediate table for data connection. Some people will say, can I use

Oracle Exadata All-in-One and cloud computing applications (III), oracleexadata4. Oracle cloud Solution 4.1 Oracle cloud computing Cloud computing is the development and integration of various technical trends that have been promoting the

BI business intelligence training series-(3) Introduction to SSAS and business intelligence ssasIntroduction: A client tool provides the ability to design, create, and manage multidimensional datasets from a data warehouse, and access the OLAP data

Big environment MySQL5.6 source code Installation Practice step by step teach you CentOS6.5 _ 64bit under the compilation and installation of MySQL-5.6.23 @ guoyJoe, centos6.5mysql5.6 L reprint please indicate the source:

Windows 11gR2 installation error: "PRKN-1019: Failed to create directory", 11gr2prkn-1019 Source:11gR2 Installation on Windows fails with "PRKN-1019: Failed to create directory" (Document ID 1669683.1) Applicable:Oracle Database-Enterprise

4. Basic Redis commands-list, basic redis-list1. The list type is implemented using a double linked list. Therefore, if you want to add elements to both ends, the time complexity is O (1 ), the faster the element gets closer to the two ends. However,

Redis Research (11)-data persistence, redis Research DataRedis's strong performance is largely due to the fact that it stores all the data in the memory. In order to ensure that Redis will not lose data after the restart, data needs to be

What is the close method of java. SQL. Connection? (take MySQL as an example), connectionclose Reprinted please indicate the source:Http://blog.csdn.net/aheeoheehahee/article/details/42641601 I would like to send this article to a programmer who has

Qt Hotel Management System and qt Hotel Management System In the past few days, the school has arranged a course and the selected subject is the hotel management system. It's quite easy to get it. It's not just a simple person to stay in. Is it

Explore Oracle Database Upgrade 7 11gR2 to 12c after the upgrade is complete, insert PDB, 11gr2pdb Explore Oracle Database Upgrade 7Insert PDB after 11gR2 to 12c upgrade is complete Preface: Since Oracle 12c, the concept of container database has

[Translated from mos] Use config. sh/config. bat to configure or re-configure GI,From How to Configure or Re-configure Grid Infrastructure With config. sh/config. bat (Document ID 1354258.1)Applicable:Oracle Database-Enterprise Edition-Version 11.2.0

Internet connection to intranet mssql and intranet connection to intranet mssql Reference: http://www.nat123.com/Pages_8_266.jsp The method in this article is as follows: (1) install and enable nat123 on the Intranet, add ing, and use other

[MongoDB] mongodb sharded cluster (iii) on windows platform, mongodb Cluster In the previous two blogs, we elaborated on the working principle and building process of the sharded cluster. In this blog, we will analyze the testing results of the

MySql processes databases and tables, and MySql processes databases. View Database It is usually useful to obtain the Database List on the server. Run the show databases command. Mysql> show databases; Create a database Mysql> create database

Auto-configuration database_console version Restore database, Database Console Error message: Configuration: Cause: the database name "5" is not the actual logical name of the database backup file named "Sdzn" View the actual logical name of the