Oracle

Reference:http://blog.itpub.net/26524307/viewspace-1063925/View version:[Email protected] yum.repos.d]# lsb_release-aLSB Version:: base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64: Graphics-4.0-noarch:printing-4.0-amd6

Oracle local services by default, the use of computer resources, affect the boot speed, each turn off more cumbersome, the following with bat one key implementation, right click, Run as Administrator@echo off for/f "skip=3 tokens=4"%%i in (' sc

CREATE table Spaces First in Plsql developer if you have created tablespaces and users, you need to delete/*--Deleting a table spaceDrop tablespace jhpt including contents and datafiles;--Delete UserDrop user JHPT cascade;*/Start execution--Create

Error when using Emctl start Dbconsole:environment variable oracle_unqname not defined. Please set Oracle_unqname to database unique nameWorkaround:Set environment variables: Export oracle_unqname= $ORACLE _sidIf not, remove the EM

OverviewIn daily life, our use of the for update is still relatively common, especially in the manual modification of data in the case of PL/SQL developer.It is only convenient at this point, and the true meaning of the for update lacks

Field CommentSELECT * from User_col_comments;Table notesSELECT * from User_tab_comments;Query field typeSelect Column_name,data_type,data_length from User_tab_columns where table_name= ' TableName ' and column_name in (' age_id ', ' month_id

Demand:There is a table in the project that probably has 7000多万条 data, causing the tablespace to be full and some data to be cleaned up to 30 million.2 B Procedure:Delete from table_name where ID > ' 40000000 ';Note: SELECT COUNT (1) from table_name

1, version-based redefinition function (only R2 version)2. Force option for CREATE TYPE (only R2 version)3. Function Result Cache4. Continue statement: Exit the current iteration and continue looping the next iteration5. A sequence in a PL/SQL

[Email protected] ~]# su-oracle[Email protected] ~]$ sqlplus "/as sysdba"Sql*plus:release 11.2.0.4.0 Production on Fri Apr 17 17:45:31 2015Copyright (c) 1982, Oracle. All rights reserved.Connected to:Oracle Database 11g Enterprise Edition Release 11.

Querying the user's indexSelect Index_name,table_name,tablespace_name,Index_type,uniqueness, statusFrom dba_indexes where owner= ' SCOTT ';Querying the user's indexed columnsSelect Index_name,table_name,column_name,Index_owner,table_ownerFrom

Oracle General pagination is written asSelect A.id,a.title,rownum as Rn,a.create_time from (select A.* to temp a order by create_time Desc) A Where rownumNote: I'm using create_time to sort the create_time with equalIn order to vary the score page

Oracle's processing of compressed data is based on database blocks, essentially by eliminating duplicate data in the database to achieve space savings.Specific practices:Compares all the fields or records contained in a block, where repeated data is

ORA-01157 & ORA-01110, ora01157ora01110 The test server after RMAN recovery, found that the alarm log file has the following error information ORA-01110: data file 206: '/u04/epps/oradata/temp02.dbf'   Errors in file

Uninstalling an Oracle database on Linux See the article Red Hat5 installing Oracle 11gR2 (http://www.bkjia.com/database/201410/346710.html. 1. Stop the Oracle database SQL> showdown immediate 2. Stop listening and EM [Oracle @ localhost ~] $

Check if the DISPLAY variable is set error for oracle Installation The graphic interface is not displayed when oracle12c is installed in linux7. Error: check if the DISPLAY variable is set. From the above content, lock the following error

Red Hat Enterprise Server 5.8 + oracle10g (Chinese interface) installation, Red Hat Enterprise Server 5.8 + oracle10g (Chinese interface) Installation   The above steps can be used to create a virtual machine.       Click

For linux/windows systems, the oracle Database supports simple cold backup synchronization and oracle cold backup Simple cold backup synchronization for oracle databases in linux/windows We have a financial system that focuses on the security of

Introduction to date addition and subtraction operation instances in ORACLE, oracle instances Both DATE and timestamp can be added or subtracted.You can add the current date to the year, month, day, hour, minute, second, and perform different time

Oracle number type Scale is 0, oraclescale Today I encountered a very interesting problem caused by NUMBER Scale. I will use a simple test case to demonstrate this case. Suppose there is a TEST table with a field type of NUMBER, And I insert the

Examples of importing and exporting Oracle databases in normal/Data Pump Mode in Windows/Linux Environments1 Linux normal export/import1.1 terminal ExportExp naricom/naricom@10.185.3.100/SGTMS owner = '('MW _ app, mw_sys, statdba, dictdba') 'file