dba for beginners

I finally completed all the OCP DBA courses. Tired! In general, Oracle certification is worth the test. I have a ccnp and MCSE certificate, but after passing the DBA examination, I feel that I have not only deepened my understanding of modern databases, but also enriched the knowledge structure of computer science. In my opinion, Oracle databases even have some operating system functions. There are quite

The following articles mainly describe the Common commands of Oracle DBA through the code of the actual application. If you are a beginner in Oracle DBA, you can use the following articles to understand the specific operations or related functions. The following is an introduction to the text. Create temporary tablespace createtemporarytablespacezfmi_temp tempfile'D:\oracle\oradata\zfmi\zfmi_temp.d

If you want to succeed as an Oracle database DBA, you must have some questions about the relevant Oracle Database DBA. The following are some practical questions and answers, the Oracle Database DBA exam brings you some gains. 1. Explain the differences between cold backup and hot backup and their respective advantages Answer: Hot Backup is applicable to database

DBA, be careful what you do. Spring is coming, sitting in front of the computer for a few hours before continuing to work is more easy to head dizzy, as I have said, the last two weeks in the preparation of the Cape is always missing a semicolon or misspelled keywords; Yesterday before someone wanted me to ask for advice, because he used toad Delete all the tables, this is not intentional, but open a number of tabs or multiple windows, and

The level of DBA is not very strict. According to the database mastery, I simply divided into three levels: primary primary, Intermediate intermediate and advanced senior. The Junior DBA, also known as Dbbs, is the abbreviation for the English database Baby sitter. Junior DBAs are often part-time, and they are often programmers or other jobs. Junior DBAs tend to write personal resumes well and participate

space at the university and share them with you to prevent me from happening in the past, it takes a lot of time. The following are all recorded at that time: Today, I logged on to Oracle with SCOTT. When I edited the table, I found that I didn't have the corresponding permissions. So I wanted to log on to sys and grant the DBA role SCOTT as a DBA, however, I couldn't remember the password. The Oracle data

synchronization Configuration2. Mysql dual master Configuration3. Configure high-availability databases for Mysql dual master + cluster database + keepalivedClientAs a DBA, do not use various GUI tools. mysql comes with the command line client, which is your best weapon.Optional1. mysql partition configuration, because there are too many restrictions, the actual table sharding is performed by the program.2. High-Performance mysqlA). drizzleB). MariaD

Before the business system stress test, Oracle dba must complete the work in advance. oracledba This article is the original article, reproduced please indicate the source: http://blog.csdn.net/msdnchina/article/details/42376661 Before the business system stress test, the Oracle dba must complete the following work in advance: 1. If Oracle database software is not installed by

; Conn Test/test as Sysoper; is connected. Sql> Show User USER is "public" Sql> Conn Test/test as Sysdba is connected. Sql> Show User USER is "SYS" Sql> 3, the difference between DBA and SYSDBA DBA, Sysdba What's the difference between the two system roles, before I explain this, I need to talk about the Oracle service creation process • Create an instance • Startup instance • Create a database

ORACLE11G is a more generic version, trying to install Oracle 12c unfortunately failed, there is no wayThe following is the collation of information 1. Attached to the installation file Http://download.oracle.com/otn/linux/oracle11g/R2/linux.x64_11gR2_database_1of2.zip? authparam=1407205871_4259949f8bacf912168631692563a693Http://download.oracle.com/otn/linux/oracle11g/R2/linux.x64_11gR2_database_2of2.zip? Authparam=1407205876_ec394cc017d1815a8cce7cc31e0f0bb9 2. The concrete steps are as follo

Tags: adding to Oinstall and DBA user groupsUsermod-g oinstall-g dba-d/home/oracle Oracle-G is the Oinstall group for the specified user's primary group-G is the DBA group for the specified user's secondary group-D for the specified user's home directorystatement is defined in detail to designate the primary group of Oracle users as OinstallSecondary group specif

Label:The country's top SQL DBA team is hiring.4-Year DBA ExperienceWe want you to master1, skilled relational database principle, proficient in a scripting language (Python, PowerShell)2, the automation, data-interested.3, can build SQL Server cluster, services broker, Replication through the script.4, familiar with MySQL know MMM, MHAThe following is our database maintenance system of the iceberg, want to

Source: DBA Query Command Accumulation-constantly updatedOne, server configuration: 1, Compatibility level: The compatibility level only affects the behavior in the specified database, without affecting the behavior on the entire server.1.1. View the database compatibility level and change the compatibility level:SELECT compatibility_level from sys.databases WHERE name=db_name ()1.2. Change the compatibility level: Set some database behavior to be com

Tags: Oracle Video Tutorials Oracle Tutorial Oracle Database teach Oracle Getting Started learning Oracle Learning GuideOracle DBA Database Senior Engineer Training course is the wind brother alone research and development of the fine combat courses, the road map is mainly to let everyone fast employment, high-paying employment. The course focuses on Oracle company profile, Oracle Database Introduction, why do you want to learn Oracle database? , what

While Oracle DBAs are high-end jobs in the IT industry and demand is strong, it is essential to enter the industry to do a DBA interview. Oracle Training Center CUUG the most important Oracle DBA interview questions and answers for the Oracle DBA for reference after a trainee interview:Problem1. Explain the different points of cold and hot backup and their advant

SQL Injection for DBA permissions on the WAF web game main site (only two databases of the current database are viewed, with more than 2 million user information) Web game master site DBA permission SQL injection (tens of millions of user information, recharge records, novice card leakage) (involving well-known games such as the wild, storm, and Master) Web Game Web site: http://www.wa3.com/It says: Wow web

A dba questionNote: You can select and answer the following questions based on your own situation. You do not have to answer all the questions. You can also directly contact the interviewer to answer the questions without answering them. I. SQL tuning class1: List several table Connection MethodsHash join/merge join/nest loop (cluster join)/index join2: How to view SQL Execution plans without using third-party toolsSet autot onExplain plan set stateme

Currently, there are a lot of books on database technology, but there are few books on how DBAs plan their careers and how to grow quickly (many DBAs have written similar articles on the Internet ). This book does not focus on technical aspects, but mainly provides suggestions for DBA's career and how to grow to an excellent DBA step by step. Books can be downloaded for free. If you are interested, you can download them. Books are in English: How t

2YearSQL Server DBAOptimization Summary When I was a dBA for two years, I felt that some things needed to be shared and discussed with you. Book order 1. "in-depth analysis of SQL Server 2008 series" is the technical insider series of MSSQL 2005. I am also interested in version 2012. The technical insider series is my first book. It covers a large amount of content, but it's all just a few clicks. So many of them can be savedcarefully. 2. troubleshoot

: \ Users \ ZML> ------ scott user import ----------------- C: \ Users \ ZML> imp scott/zml file = 'd: \ zml. dmp 'Log = 'd: \ zml1.log' full = yImport: Release 11.2.0.1.0-Production on Monday April 21 21:57:40 2014 Copyright (c) 1982,200 9, Oracle and/or its affiliates. all rights reserved. connect to: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0-ProductionWith the Partitioning, OLAP, Data Mining and Real Application Te Sting options: the EXPORT file IMP-00013 created by using the