Oracle

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

First, the preparatory workTo create a table space:Create temporary tablespace yangwen_tempTempfile ' D:\oracle\oradata\orcl\yangwen_temp.dbf 'Size 50mAutoextend onNext 50m maxsize 20480mExtent management Local;Create Tablespace

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

#!/bin/sh# Get HostnameHostname= ' HOSTNAME 'Logfile=xunjian_ ' Date +%y%m%d '. LogHostinfodir=/home/oracle/xunjianif [[!-D $hostinfodir]]ThenMkdir-p $hostinfodirFiDate >> $hostinfodir/$logfileecho "hostname" >> $hostinfodir/$logfileHostname >>

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, check the user's proifle is which, is generally default:SQL>SELECT from Dba_users;2. View the password expiration settings for the specified profile (such as default):SQL>SELECT*fromWHERE s.profile='DEFAULT ' and

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

Start monitoring: Lsnrctl startView monitoring: Lsnrctl statusStop listening: Lsnrctl stop1. Oracle data Server includes: instance process and database;Instance processes include: Memory structure (SGA) and background process (Pmon (process

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

(1) The concept of table space and partitioned tableTable Space:is a collection of one or more data files, all of which are stored in the specified table space, but are primarily tables, so called table spaces.Partition table:When the amount of data

The data used for the test is the EMP table in Scott/tiger mode:We use the job and sal two column tests:The above statement refers to the job placement group (partition by job) and then ranks within each group by salary (SAL). Notice the

Why do I have to turn on additional logs when goldengate is in use? People think, if I do update on the source side, how does the target know what row of data I am modifying? So what do we use to identify this line of data that we've modified? ROWID?

To modify the maximum number of Oracle connections1. Ways to modify the maximum number of connections for OracleA, landing in SYSDBA status of PL/SQL or WorksheetB, query the current number of connectionsShow parameter processes;C, change the number

ORA-02049: Timeout: Distributed Transaction Processing wait lock Simulation I want to simulate this error and see what the problem is. Create a table on Database B: create table TEST(A NUMBER,B DATE);insert into test (A, B) values (2, to_date('16-04-

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 ~] $

The setting of INITIAL Parameter causes the truncate table to fail to reduce the case of the high water level line, and the truncate water level line Using the following SQL statement in a database, I found a batch of tables that need to reduce the

Oracle converts score rows into columns 1. The table contains the following data: Name Subject January February March Zhang San Chinese 30 40 50 Zhang San Mathematics 56 65 78

Oracle expdp and impdp commands-- Create a remote data connectionCreate database link DB_MZDB11 connect to YTMZTWO identified by YTMZTWO909 using 'mzdb11 ';-- Create a local directoryCreate directory db_mz as 'C :';-- Authorize the user to read and

How does a function return a result set in Oracle? In Oracle, function return result sets are sometimes used. The following is a demo: create or replace type t_test as object(id integer,create_time date,object_name varchar2(60));create or replace