Oracle

The following two clone types are from 12.2 to 12.21 clone pdb into current CDB:CDB under execution:Alter session set pdb_file_name_convert= ' AAA ', ' BBB ';Create pluggable database BBB from AAA;Alter pluggable database BBB open instances=all;Give

A lot of friends have encountered in the operation of the database mistakenly delete some important data, if the database is not backed up and the data is very important how to do to retrieve the data mistakenly deleted? I am here to introduce

Task one: The project run log is automatically backed up and processed into MongoDB.Difficulty: string cutting, date-time format processing, Linux timed tasksProcess: Log processing No outside of the valid fields from the unstructured log text

Today I found the database connection is very slow, even can not connect, want me to check to see#su - oracle$ lsnrctl statusLSNRCTL for Linux: Version 11.2.0.1.0 - Production on 17-MAY-2018 12:29:11Copyright (c) 1991, 2009, Oracle. All rights

SELECT * from v$access O WHERE o.type like ' procedure% 'Create materialized views and refresh periodicallyCreate materialized view Mv_name Refresh Force on demand start with Sysdate next Sysdate + 1Create materialized view Mv_name Refresh Force on

1, the phenomenon:Double-click Setup.exe, the Black cmd window appears, the conditions are met, but it is directly disappeared; Oui.exe also ran but did not report any error messages will disappear ...2. Try:Setup.exe and Oui.exe are both run in a

The purpose of modifying name is only to manage it clearly and not to repeat it in the future. I am lazy, memory is poor, so I put down1. Check the current nameSql> Show Parameter nameNAME TYPE VALUE------------------------------------ ----------- --

The traditional way to connect to a remote database is to install an Oracle locally. Then use the Network configuration Assistant. Then connect with PL/SQL Dev. It is not very convenient because the database needs to be installed locally?The second

After we install the Orabbix plug-in, look at the Tablespaces monitoring item is the hair item value is None, the first reaction is not monitoring success, not actually.1, we open the path of the ORABBIX monitoring key parameter, the following is

Oracle Exports DMP Files:1, fully export database Oracle, export to C:\daochu.dmpExp User/[email protected] file=c:\xxx.dmp full=y or exp user/[email PROTECTED]:1521/ORCL file=e:\xxx.dmp2, export the tables of RfD users and JYZGCX users in the

Original: https://www.cnblogs.com/soar-gh/p/5949158.html1. Enter Sqlplus modeSqlplus/as Sysdba;2. Check the validity period of the user password (the default configuration file is defaulted)SELECT * from Dba_profiles WHERE profile= ' DEFAULT ' and

First explain the environment of my machine:1, Win10-64bit2, Navicat Premium_11.2.7-64bit3. Oracle database not installed (including client not installed)Workaround:1. Download Instant Client Package"Note: Many of the network posts are said that

1. Simple connectionBasic Connection Syntax:SELECT [all| Distinct]column_name[,expression ...]From Table1_name[,table2_name,view_name,...][WHERE condition][GROUP by Column_name1[,column_name2,...][Having Group_condition]][ORDER by Column_name2 [asc|

Note: This article is from the shenzhen gg java How to pass a list to Oracle stored procedure One: a PL/SQL array is built on the database side. 1 CREATE OR REPLACE TYPE Tables_array as Varray (+) of VARCHAR2 (+); 2 3 drop table test purge;

First, OEM knowledge points1. OEM IntroductionOEMs are a toolset that uses an intuitive and easy-to-use graphical interface to control and manage Oracle databases, and it contains a number of tools that are useful to DBAs. In Oracle, database

v$ OpeningV$database Database InformationV$datafile Data File InformationV$controlfile Control File InformationV$logfile Redo Log InformationV$instance DB Instance InformationV$log Log Group InformationV$loghist Log History informationV$SGA Database

11. Create a tableCrate table Tab1 (f_id number not null,f_a varchar2 (7) Does null,f_b number (6,2) not NULL);Primary key: field cannot be empty, uniqueness;External: can be repeated, but is the primary key of another table;Index: An index is a

Tablespace: This space is used for data storage (tables, function, stored procedures, etc.), so is the actual physical storage area.Temporal tablespace: The primary purpose is to sort operations on the database [such as creating indexes, order by

--1, Open ArchiveStepsA. Conformance shutdown database (shutdown [immediate | transactional |normal])B. Boot to mount stage (startup Mount)C. Switch to archive mode (ALTER DATABASE archivelog[manual])d. Switch to the open stage (ALTER DATABASE

ORACLE Exception Handling tutorial, oracle tutorial The main content of this article is as follows: 5.1 exception handling concepts 5.1.1 pre-defined exception handling 5.1.2 non-predefined Exception Handling 5.1.3 user-defined exception handling 5.