Oracle

Oracle to achieve Chinese characters according to Pinyin, strokes and radical sort of some relevant information, are not very clear, they also studied the next, finally understand, hope to help. It should be explained that the following method

using Oracle parallel queries to play the power of multiple CPUs2006-07-05 07:00 Author: Source: BLOG Editor: Ark the installation of more CPUs in a separate server is a current trend. With symmetric multi-processor (SMP), it is not surprising that

Recently wrote an Oracle EXP auto export script, the individual execution can run normally, put in the crontab task cannot execute pull. Script 1:setenv.sh Export Oracle_base=/opt/oracle Export Oracle_home= $ORACLE _base/10.2.0 Export ORACLE_SID=

by Mark Rittman Using Bulk binds and ForAll Yesterday, I looked at collections, a evolution of pl/sql tables that allows us to manipulate many variables at once, as A unit. Collections, coupled with two new features introduced with Oracle 8i,

The following is from: http://lovexueer.itpub.net/post/5072/49241 December 26 (Monday) Test environment: Os:xp db:9201 This test tests the following conditions: A. Normal shutdown database, database (not) archive, rollback segment table space lost,

Oracle detects deadlock Sql:select SID, DECODE (block, 0, ' no ', ' Yes ') blocker, DECODE (request, 0, ' no ', ' yes ') waiter from V$lock WH ERE Request > 0 OR block > 0 ORDER by block DESC Select Bs.username "Blocking user", bs.username "DB user",

The Oracle temporary table space is used primarily for querying and storing buffer data. The primary reason for temporary table space consumption is the need to sort the intermediate results of a query. Restarting a database frees up temporary

Request Process: 1 Oracle executes your query. 2 Oracle fetches the "I" and calls it row number 1. 3 Have We gotten past row number meets the criteria? If no, then Oracle discards the row, if yes, then Oracle return the row. 4 Oracle fetches the

Recently encountered a problem in the test, research and development claimed to be normal in the development environment, and we in the test environment is often encountered, a few toss, found to be caused by Oracle bugs. However, even if the oracle

Case statementCase SelectorWhen value1 THEN Action1;When value2 THEN Action2;When Value3 THEN Action3;.....ELSE Actionn;End case; Case expressionsDECLARETemp VARCHAR2 (10);V_num number;BEGINV_num: = &i;Temp: = Case V_numWhen 0 THEN ' Zero 'When 1

First, IntroductionUltra-large systems are characterized by:1. The number of users to deal with is generally more than million, and some more than tens of millions of data, the database generally more than 1TB;2. The system must provide real-time

Lo Wan Small into Oracle to achieve self-growth column A sequence (Sequence) is a database object that can be used by more than one user to produce a series of unique numbers. Sequence definitions are stored in the data dictionary, simplifying

Initial contact Oracle database, FAQ and solution Just contact Oracle database and get used to the easy way to get started with SQL Server????????????????????? 1. Using the cmd login Sqlplus method > S qlplus sys/12345678@ordb1 as Sysdba O RDB1 is

Solutions to Oracle Exp-00003 problems the day before yesterday in the Guide data occurred in the Exp-00003 error, before also encountered such a problem, the solution is to the database server on the computer, the problem solved, but this is from

Often meet a friend asked Oracle learning difficult, how to become a master and so on, I would like to combine my personal experience simple to say a few: 1, lay a good foundation, from the Learn Oracle not to rush, hope to become a warrior one

RAC, Data Gurad, Stream are three tools in the Oracle High-availability system, each of which can be used independently or in conjunction with each other. Their respective emphasis is different, the application scenario is also different. RAC its

When you create a new connectionConnection name: Your own casual name (but preferably the same as the project name)User name:Password:Host name: The IP address of the DB file namePort: The port in the DB file nameThe name after the port in the

To create the user's syntax:Create user username identified by password default Tablespace table space quota size on table space;Note: While user names are written in lowercase when they are created, they are capitalized when stored in a data

Package Cn.xvl.test;import Java.sql.connection;import Java.sql.drivermanager;import java.sql.PreparedStatement; Import Java.sql.sqlexception;public class Test {public static void main (string[] args) throws ClassNotFoundException, SQL Exception

One, Data update operationDML syntax includes two main content: Query and update, update mainly include: Add data, modify data, delete data. These operations are inseparable from the query.1. Add DataSyntax: INSERT into table name [(Field name 1,