Oracle

The concept of online analytical processing (OLAP) was first proposed by the father of the relational database, E.f.codd, in 1993, and he also presented 12 guidelines on OLAP. OLAP has aroused a great deal of response, OLAP as a class of products

1 Problem Description: Recently, according to the corresponding script on the Internet, the following problems were encountered when testing the Oracle control script on the virtual machine: After you have created the Oracle control script, execute

The problem is encountered in standby database using Rman to restore the read-only table space on the main library exclude. Database recovery completed, but recovery was not possible when restoring a read-only tablespace that was exclude by the

First, the implementation of the preparatory work 1.1 Server Installation Operating system 1.2 Oracle installation media 1.3 Shared storage Planning 1.4 Network Specification Assignment Second, pre-installation preparation

Oracle Database 11g Release 2 standard Edition and Enterprise Edition software DownloadsOracle Database 11g 2nd Edition Standard Edition,Software download for Enterprise EditionMicrosoft Windows (32-bit) Disc 1, Disc 2 (2GB) 1Microsoft Windows (x64)

Problems with file transfer scenarios Is it a loss or worse situation that exposes the partner's sensitive files and affects the business? Large files block the system, making critical business processes slow to run? Does the

Query all columns and their properties for a table:Select From User_tab_columns t,user_col_comments Cwhere t.table_name = c.table_name and T.column_name = c.column_name and t.table_name = women;To find the primary key for a table:Find the foreign

Copy the daily EXPDP export file of an Oracle database to a remote server using shell scriptingZhao Full Text Network name: GuestartWe have a production environment Oracle database, although the daily Rman backup, but also overwhelmed by the

Using PL/SQL developer to manage Oracle in the past has found it inconvenient to use. Open very card, and the upper left corner of the interface is always more out of that box, how can not be set by default hidden away.The only thing that is worth

DirectoryFirst, hardware requirementsSecond, the softwareThird, System installation noteIv. System Readiness prior to Oracle installationV. Install Oracle and set up the settingsSix, upgrade Oracle to Patchset 10.2.0.4Vii. using Rlwrap to invoke the

We recommend a BI tool: Talend Open Studio. I also just contact, know not much, feel more magical I would like to recommend you ...Because of the company project, touch the BI tool Talend, feel very powerful, can synchronize a variety of databases,

One, the Oracle 11g database download, installation:Download:Then, based on this hyperlink build your own user, database.Http://wenku.baidu.com/view/caa21c1a650e52ea551898e2.htmlSecond, Navicat Premium connect Oracle1. Review the Tnsnames.ora file

The table size has two meanings. One is the number of physical spaces allocated to a table, regardless of whether the space is used or not. You can query the number of bytes as follows: Select segment_name, bytesFrom user_segmentsWhere

I. Problem Description Install RAC of 11.2.0.1 on Oracle Linux 6.1 and run the root. Sh script when installing grid. The error is as follows:   [Root @ Rac1 bin] #/u01/APP/11.2.0/GRID/root. Sh Running Oracle 11g root. Sh script...   The following

The following problems are frequently encountered during data migration: 1. If the exported file is not valid, the header verification fails; 2. EXP-00056: Oracle error 6550ORA-06550: Line 1, column 41:PLS-00302: component 'set _ no_outlines 'must

Mathematical functions 1. Absolute Value S: Select ABS (-1) Value O: Select ABS (-1) value from dual 2. INTEGER (large) S: Select ceiling (-1.001) Value O: Select Ceil (-1.001) value from dual 3. Round (small) S: Select floor (-1.001) Value O:

Explain Oracle query operations (add, delete, modify, query, pseudo table, advanced query) and oracle Advanced Query SQL query operation: add, delete, modify, and queryI,SQL Operator Arithmetic Operator + -*/ Comparison operator =! = <> = ......

PL/SQL Developer connects to the Oracle (64Bit) diagram installed on Windows 7. Thanks to the continuous update of hardware technology, Windows 7 has gradually become the mainstream and the computer memory has gradually increased, to make full use

The Oracle dedicated server and the Shared Server connect to the Oracle server to process requests. These two methods are dedicated server connection and shared server connection. Dedicated server www.2cto.com: Oracle will always create a new thread

Import/export is the oldest two surviving ORACLE command line tools. In fact, I never think Exp/Imp is a good backup method, the correct statement is that Exp/Imp can only be a good dump tool, especially in small database dump, tablespace migration,