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ORACLE Schemas and Schema Objects

A schema is a collection of schema objects, and each database user corresponds to a schema.

Dec 15, 2016 am 10:25 AM

How to analyze ORACLE faults

How to analyze ORACLE faults. When system queries are interrupted or slowed down, system hangs, system downtime and other faults occur, the analysis process is as follows:

Dec 15, 2016 am 10:23 AM

The most basic function of awk is to browse and extract information based on specified rules in a file or string. It is used to divide a line into several "fields" for processing. Suitable for processing small data.

Dec 15, 2016 am 10:21 AM

awk command

ORACLE process

The processes during the interaction between ORACLE client and server are divided into user processes and ORACLE processes.

Dec 15, 2016 am 10:21 AM

ORACLE database model overview

An ORACLE database is a collection of data that is processed into a unit. Each ORACLE database has a physical structure and a logical structure.

Dec 15, 2016 am 10:18 AM

Linux awk command

AWK is a language for processing text files and a powerful text analysis tool. The reason why it is called AWK is because it takes the first characters of the family names of its three founders, Alfred Aho, Peter Weinberger, and Brian Kernighan.

Dec 15, 2016 am 10:18 AM

ORACLE user management

Each ORACLE database has many legal users. These users can log in to the database according to their user name and password, and use SQL language to access data.

Dec 15, 2016 am 10:16 AM

ORACLE permission management

Dec 15, 2016 am 10:14 AM

How to dump and pour text data in ORACLE

Dec 15, 2016 am 10:10 AM

ORACLE database system global zone

Dec 15, 2016 am 10:08 AM

Logical structure in ORACLE database

The logical structure of ORACLE is composed of one or more table spaces. A database is divided into one or more logical units, which are called table spaces.

Dec 15, 2016 am 10:07 AM

Detailed explanation of linux awk command

Awk is a powerful text analysis tool. Compared with grep search and sed editing, awk is particularly powerful when it analyzes data and generates reports. To put it simply, awk reads the file line by line, slices each line using spaces as the default delimiter, and then performs various analysis and processing on the cut parts. There are 3 different versions of awk: awk, nawk and gawk. Without special explanation, it generally refers to gawk. Gawk is the GNU version of AWK. Awk's name comes from the first letters of the surnames of its founders, Alfred Aho, Peter Weinberger and Brian Kernighan. Actually AWK's

Dec 15, 2016 am 10:05 AM

Detailed explanation of Netstat command

(netstat -na command), this article mainly talks about the netstat tool under Linux, and then explains in detail the various network connection statuses.

Dec 15, 2016 am 09:59 AM

Network basics and Linux network configuration one Detailed explanation of ifconfig, route, netstat commands

OSI model and TCP/IP protocol cluster 1. First of all, TCP/IP is a protocol cluster; OSI (Open Systems Interconnection) is a model, and TCP/IP was developed before OSI. 2. TCP/IP is a hierarchical protocol made of some interactive modules, each of which provides specific functions; OSI specifies which function belongs to which layer.

Dec 15, 2016 am 09:56 AM