Oracle

Oracle database is a database system leader, compared to MySQL, SQL Server, DB2 and other advantages are in large enterprises, banks, securities sector. Oracle database powerful capabilities also correspond to the large "size" of this Oracle

1. Modify APT's source informationvim/etc/apt/sources.list.d/java-8-debian.list2. Add source informationDeb http://ppa.launchpad.net/webupd8team/java/ubuntu trusty maindeb-src http:// Ppa.launchpad.net/webupd8team/java/ubuntu Trusty main3. Add GPG

A table that was mistakenly deleted by the Oracle database and the recovery of records in the tableOne, the table restores the mistake to delete the table, as long as does not use the Purge permanent deletion option, then recovers from the flash

ORACLE 11G Password Expiration issue:1. Use the Oracle user to enter the SQL Editor to execute the Change password (original password, remain unchanged) commandSql>alter user username identified by "password";2, the view user's proifle is that,

1First open the Plsql, login the database you need to access. 2Click Tools on the toolbar. 3Select Export User Object in the drop-down box. 4A window pops up where you can select the table you want to export, and hold down CTRL to make

Encountered this problem "in the number of parameters in Oracle Limit", which is recorded here,There is a limit to the number of arguments in the parentheses, and the number of Oracle 9i cannot exceed 1000 256,oracle 10g.When the number of in is

1. Build a Windows Server or virtual machine, where you need to handle it:1) Turn off the firewall (test environment use)2) Update the necessary security patches (processing when not connected to the network)3) Open remote access.4) Modify the power

Oracle additions and deletions--the increase1. Create new database user and set password create user username identified by password2. Authorize DBA Grant DBA to user name for new user;3, login authentication Feiyu user conn Feiyu;4, CREATE TABLE

Oracle ArchitectureOracle architecture is mainly used to analyze the composition, working process and principle of the database, as well as the organization and management mechanism of the data in the database.Oracle DatabaseThe Oracle database is a

Due to business needs, these two days in learning Oracle, found in Oracle's date it will give you into a very unaccustomed format, so think about how to get it into adulthood, month, day format to display, check information, look at the document,

In Oracle, there are often situations in which a table space is too large due to misoperation. The Delete method does not clear the high watermark, after using truncate, although the high watermark has been cleared, but the expanded table space does

shutdown->nomount->mount->open;1, Shutdown: Database shutdown2, Nomount:1) $ORACLE _home/dbs to find the initialization parameter fileA.spfile.oraB.spfile.oraC.init.oraD.init.ora2) Launch instance3) Start the background process4) Open the alarm log

The cause analysis and solution of stored procedure or function failure in Oracle production:Error message:Cause Analysis:1. When we compile a stored procedure or function, all Oracle objects referenced by the procedure or function are recorded in

This article refers to the link: http://blog.sina.com.cn/s/blog_8604ca230100vro9.htmlTo explore a query statement:--Paging parameters: size = page = 2--No query for order BY-nested subqueries, two filters (recommended)--select *--from (SELECT ROWNUM

When I was working on a project recently, the customer had a need to fill in a few columns of the data queried from the database with a specific content, and use the NVL function to implement this functionThe following is transferred from:

is still a 32-bit and 64-bit problem, the solution is to ensure that the generator is a 32-bit program and Oracle Client access using 32-bit.Environment is win10+ vs2017+oracle 11G 32 client +orcle unknown version databaseSeveral places were mainly

Tip: Article written in 2018/04/24 daily notes generally just as a note, will not do too much is explainedNotes Main content: Oracle simple structure diagram, create database table space User Basic authorizationNotes purpose: Prepare a basic Oracle

[Email protected] ~]$ cat/home/oracle/jy_sj.sh#!/bin/bashSource/home/oracle/.bash_profilesdate=$ (Date +%y%m)tdate=$ (date-d "-1 month" +%y%m)Spname= "P" ${sdate}Tpname= "P" ${tdate}#@/home/oracle/truncate.sqlSqlplus/as sysdba >/home/oracle/sj_par_ '

First, ORALCE system structure1. OverviewOracle's architecture is the composition of the database, the work process, and the organization and management of the data in the database, to understand the architecture of the Oracle database, you must

0. What are the advantages and disadvantages of binding variables and what are the use cases respectively?Pros: The ability to avoid hard parsing of SQL and associated overhead (SQL syntax, semantic analysis, logical analysis, generating better