Oracle

Step 1: Add a primary key for auto-growth in oracle step 1: www.2cto.com create sequence seq _ table name increment by 1 -- add a few start with 1 each time -- count NOMAXVALUE from 1 -- do not set the maximum value NOCYCLE -- always accumulate, do

Summary of Oracle and Linux Double quotation marks and single quotation marks in general, we usually use single quotation marks, but when the character set is inconsistent, double quotation marks and single quotation marks are quite different, when

Changing the archive mode in the RAC environment the archive mode switching is slightly different from that in a single instance, mainly because of the differences in shared storage. In this case, we can switch the RAC database to a non-cluster

Oracle audit lab audit queries what operations a user performs on a table, such as select, delete, insert and so on 1. Open the audit function www.2cto.com SQL> show parameter auditNAME TYPE VALUE =----------- audit audit_file_dest

Six minutes to learn how to create an Oracle tablespace. After a long time to learn how to create an Oracle tablespace, I would like to share it with you. After reading this article, you will certainly have a lot of GAINS. I hope this article will

Ubuntu has a rare problem when installing Oracle 11g XE in Configure. I can only say that I have solved this Configure problem, however, I suggest you confirm the input method when you press the Enter key. This is what I feel afterwards.

How to connect to the specified database using the tnsnames. ora file of the oracle database for the given server name, user name and password, for example: server name 192.168.0.20, user name and passwordAll are w_basketboy. The method to connect

SQL single-line functions in Oracle databases-character FunctionsThis learning is about character functions.Character FunctionsCharacter functions can also be divided into case-insensitive conversion functions and character processing functions.Case-

In Windows, configure Oracle 11gR2 Data Guard. I used to configure Data Guard when I was never in contact with Oracle. Paid download a detailed configuration document for data guard 11g in windows (requires a mailbox), but many of the parameters

Oracle trigger 4-database event trigger Oracle trigger 3-DDL trigger http://www.bkjia.com/database/201304/201421.html Create database event TRIGGER Syntax 1 CREATE [or replace] TRIGGER trigger_name2 {BEFORE | AFTER} {database_event} ON {DATABASE |

Once and for all, you can change the machine name and IP address of Oracle at any time for Windows Server only. Other systems are not tested, but the principle is the same and should be feasible. It is very troublesome for Oracle to change the

Oracle trigger 5-Instead of trigger Oracle trigger 4-database event trigger http://www.bkjia.com/database/201304/201423.html The Instead of trigger can be used to insert, update, delete, and merge tables in a view composed of more than one table.

Various database software for SQL support recently is learning the database course, although SQL has a unified standard, but each database software for SQL support is different, machine encountered a variety of problems, record it on this post. 1.

Oracle SQL * Loader Features analysis Features: SQL * Loader loads data from external files into tables of an Oracle database. it has a powerful data parsing engine that puts little limitation on the format of the data in the datafile. you can use

Oracle controlfile backup and recovery backup: alter database backup controlfile to 'xxxxxx' reuse; alter database bakcup controlfile to trace as 'xxxxxxxx'; RMAN backup control file recovery instance: 1. after the control file is corrupted, use the

To Merge multiple rows into one project, you must merge multiple rows into one project. The table structure is as follows: NAME Null Type ----------------------- ----- N_SEC_CODE not null char (6) C_RESEARCHER_CODE not null VARCHAR2 (20) This table

About ORA-01187: cannot read from file because it failed verification tests Handling Environment: OEL + Oracle 11.2.0.3 + physical standby Problem description: Ora-01187 error code displayed when querying dba_temp_files attempts; ORA-01187: cannot

[Oracle] methods for obtaining execution plans 1. estimate execution Plan-Explain plan Explain Plan uses an SQL statement as the input to obtain the execution plan of this SQL statement and store the execution Plan output to the schedule. First, add

[Oracle] undo corruption without backup. What should I do if undo corruption is unfortunately encountered in Oracle running? Of course, the best way is to recover completely, but if there is no backup, you can use an unconventional method (using

[Oracle] common tool set-SQL * Loader principle SQL * Loader is a tool provided by Oracle for data loading, it is suitable for business analysis databases (data warehouses) and can process flat files in multiple formats. batch data loading is more