Oracle

A problem occurred when connecting oracle. My machine is installed with the oracle9.2 client. When when using the data access component (called system, ProgramThe error "system. Exception: system. Data. oracleclient requires Oracle client software

1. in Oracle 9i, the client is a database front-end application.ProgramBy using the client environment, you can connect to any Oracle database server in the network to access the database. Net configuration assistant is a product that sets the

In addition to sysaux's neglected damage to the database during the National Day upgrade, some problems have been found, which are roughly divided into the following points:1. EXP/expdp is not available because many packages and functions are not

When oracle is commonly used, it will be uninstalled: Write down the steps yourself: Disable all Oracle services andProgram Select Start | program | Oracle Installation products command to run universal Installer. The welcome dialog box is

During many software development processes, you do not need to properly plan indexes. As a result, a table has more than N indexes, which may cause troubles for subsequent maintenance and optimization. Therefore, you sometimes need to monitor

Enterprise Manager can be created by using dbca, manually, or using templates. When dbca is used to create a database, "Use Enterprise Manager to configure a Database" is not selected ", if you want to use EM later, you must manually configure em to

We all know that the controlfile records information about each archivelog. Of course, after deleting these physical files in the OSThe archivelog information is still recorded in the controlfile. the logs are displayed visually in the Oracle OEM

  All versions of Oracle 9i/10gr2 (Please download them with download tools such as thunder ): Bytes ---------------------------------------------------------------------------------------------------Oracle 9i Oracle9i Database Release 2

We know that in the Oracle database, a process can be terminated by kill session. The basic syntax structure is as follows: Alter system kill session'Sid, serial #';   The kill session will be marked as killed, and Oracle will clear the process

Auto-increment primary key in Oracle (trigger) -- Create Table Create Table t_users (Userid number not null,Username varchar2 (20)) -- Create SequenceCreate sequence t_user_seqMinvalue 1Max value 9999999999999999999999999999Start with

I. Index Introduction 1.1 index creation Syntax: Create uniuqe | bitmap index . On . (| ASC | DESC, | ASC | DESC ,...)Tablespace Storage Logging | nologgingCompute statisticsNocompress | compress Nosort | reversePartition | global partition

SQL _text: The first 1000 characters of SQL text Sharable_mem: size of the occupied shared memory (unit: byte) Persistent_mem: Fixed memory size during the life cycle (unit: byte) Runtime_mem: Fixed memory size during the execution period Sorts:

To_date formatDay:Dd number 12Dy abbreviated FriDay spelled out FridayDdspth spelled out, ordinal twelfthMonth:MM number 03Mon abbreviated MARMonth spelled out MarchYear:YY two digits 98Yyyy four digits 1998 The time range in the 24-hour format is: 0

The following are all Oracle database connection strings. The summary is very detailed, but I did not summarize them. I just learned from Oracle. Paste it out. First, it is convenient for you to search for it later, and second, it also provides

The company uses Oracle databases (one table has million records and MB of records need to be added every day ),On this basis, I developed the. net B/S system and accumulated a little experience to share with you: 1. How to Avoid garbled

Try to connect to Oracle and use the oraclecommand to read records in the database, which is displayed on the console: 1 using system; 2 using system. Data; 3 using system. Data. oracleclient; 4 5. Public class mainclass 6 { 7 static void main () 8 {

Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Procedure tform1.btn1click (Sender: tobject );VaRI: integer;Begin// PreprocessingWith orastoredproc1 doBeginAutocommit: = false;Fetchall: =

Http://www.cublog.cn/opera/showart.php? Blogid = 14788 & id = 141763 Quote: [Q] how to convert rows and columns[A]1. Column and column conversion with fixed columnsFor exampleStudent subject grade---------------------------Student1

The logical standby architecture was completed yesterday and runs in the maximum performance mode of the default mode. When trying to change to the maximum available mode today, the primary database reports the following error. No answer was found

At this morning, a telephone bell woke me up. My colleagues at night shift made a mistake again. As a result, my colleagues told me that the database could not be connected and the production line could not be refreshed. Open your computer and