how to manage database

Common exceptions:ORA-14025: Cannot specify partition for a solid view or a solid view logOra-14026:partition and cluster clauses repel each otherORA-14027: Only one partition clause can be specifiedORA-14028: Missing at or values

"Face question" redis-related the difference between 1.Redis and memorycache. Redis uses a single thread, while memcached is multi-threaded, Redis stores data in a way that uses on-site memory, and can configure virtual memory; memcached uses a pre-

In the first article of the MyBatis series, it is mentioned that there are many problems in the actual development of JDBC programming, and then there is no analysis after introducing MyBatis, mybatis How to solve the problem of JDBC. At the

Oracleenterprisemanager (Oracle Enterprise Manager, abbreviation OEM) provides management services for managing distributed environments through a set of Oracle programs. OEMs include a set of DBA tools, a repository, and a graphical display of the

For database administrators facing heavy management tasks every day, improvements in product performance, especially in management performance, may be the most leap to them. SQL Server 2008 Performance Promotion "Four Kings" are mission-critical

1. Check the listening status Lsnrctl status2. Start monitoring Lsnrctl start3. Turn off monitoring lsnrctl stop4. Log on as a database administrator Sqlplus/as Sysdba5. Manually start the database sql> STARTUP6. Close the database Sql>shutdown

1. What is MyBatis?MyBatis is an open source project for Apache Ibatis, which was migrated to Google code by the Apache Software Foundation in 2010 and renamed MyBatis. Migrated to GitHub in November 2013.The term ibatis is derived from the

Cpanel is a web-based Web-based control panel that simplifies many common system administration tasks, such as site creation, database deployment, and management. This guide shows you how to use the Cpanel user account to manage domains and

Database index processing is a bit of a problem, simply recordOracle rules that objects under the same schema cannot be named with the same name, typically creating index names with "table name _ Field name", so that you can quickly know which table

Linux operations must be MySQL Enterprise face questionsOld boy education operation and maintenance class all students MySQL will be enterprise face testThe most practical, the most meticulous, the most landing training base, the old boy education

TransactionsA set of business operations, either all successful or all unsuccessful.characteristics of----------------transactions--------------atomicity : A transaction is a whole, indivisible, and the operations in the transaction either succeed

It seems that some people still do not understand the true meaning of the schema, and now I have to tidy up a bit, I hope to be helpful to everyone.Let's start by looking at their definition:ASchemais a collection of the database objects (used by a

Oracle Default database userWhen a new database is created, Oracle automatically creates 3 database users for us.1.sys User: SYS user is a super User in Oracle. All data dictionaries and views in the database are stored in the SYS mode (what is the

related knowledge ( key content starting from title one ) Current mainstream databases are:SQL Server, MySQL, qracle, SQLite, Access, MS SQL Servers, etc., I am mainly talking about MySQL;Here are a few things to remember!!!SQL includes all

MySQL database knowledge points1. Manage Database statements:Working with databases:Use test;To add a database:Create database name;Create DATABASE test;To modify a database:ALTER DATABASE name;ALTER DATABASE test;To delete a database:drop database

Introduction to the Hbuilder integrated development environmentHbuilder is a web development IDE that supports HTML5 in Dcloud (Digital Paradise). Hbuilder is written in Java, C, Web, and Ruby. The main body of Hbuilder itself is written by Java. It

Temporal table Space ConceptsTemporary tablespaces are used to manage database sorting operations and temporary objects such as temporary tables, intermediate sort results, and so on, when the sort is needed in Oracle, and when the sort_area_size

What is a database connection poolOfficial explanation: The database connection pool is responsible for allocating, managing, and releasing database connections, allowing applications to reuse an existing database connection instead of

First, prefaceThe author of the Oracle database understanding, a long time to stay in the "illusion" of the state, you say do not understand it, and will use, a take it up, on some basic concepts and can not say a way to ~ if you want to go farther

Create a MySQL userUseradd mysql-m-s/bin/nologin && ID mysqlUnpack binary PackagesTar XF mysql-5.5.xx-linux2.6-x86_64.tar.gzCopy to the/application directory and renameMkdir-p/applicationMV mysql-5.5.xx .../aplication/mysql-xxxCreate a soft