Oracle

Garbled characters in Oracle Chinese:When querying a remote database, sometimes the query results are displayed in all the fields displayed in Chinese ?? The Chinese characters are garbled.Causes of Chinese garbled characters:The Oracle database

Differences between sys and system users[System] You can only log on to Em as normal.[Sys] a user has the "sysdba" or "sysoper" permissions. the user can only log on to Em using these two identities and cannot use normal."Sysoper" permission, that

1. Find out which tables have incorrect tablespaces.   Select * From dba_tables where tablespace_name = 'tdb ';     2. Move the tablespace in TDB to tdb2009. Syntax: alter table table_name move tablespace tablespace_name;   Alter table tdb200

The SQL statement is as follows: Select bu. deptno, count (BU. hiredate) startmonthcount from userinfo Bu, DEPT d Where bu. deptno = D. deptno and BU. hiredate JavaProgramPstmt. setstring (1, firstday ); The following exception occurs: Java.

SQL> set linesize 400sql> set pagesize 400sql> select * From user_tab_privs where grantee = 'xiaye '; grantee owner table_name grantor privilege gra HIE has been created before --- xiaye sys ships sys update no noxiaye sys ships sys select no

New background processes in 10g Tip: Click Help for a detailed explanation of this page.Bookmark go to end Subject: New background processes in 10gDoc ID: Notes: 268197.1 type: howtoLast revision date: 03-oct-2008 status: published In this

Author: Yi Wenjun Email: yiwenjun@126.com   First, you must enable the Oracle listener and service. Open the ODBC data source configuration interface, select system DSN, add, and select Oracle driverProgram The key is the following parameter

I. Table Restoration If the purge permanent deletion option is not used for accidentally deleted tables, it is expected to be restored from the flash back area. The general steps are as follows: 1. query the deleted table from flash back.

These methods can also be used to import data in other formats to Oracle. Here, we only use Excel as an example. Method 1: use SQL * Loader This is a lot of methods, as long as the target table already exists in Oracle Data.The general steps are as

Today, we are working on a curd web application to build a backend for the subsequent use of extjs. Since Oracle databases have not yet been used, Oracle databases are also used as backend databases, and Oracle is also used in practice. However,

Summary: In a large number of businesses DataYou can consider Using Partitioned Tables to improve the performance and convenience of the application system. DataManagement, this article describes in detail the use of partition tables. For large

Oracle is being studied. There are many reasons for the impact on Oracle performance, which can be divided into four aspects: 1. hardware environment CPU, memory, and network transmission conditions all affect Oracle performance. The hardware

PL/SQL is a structured programming language, blocks are the most basic structure in PL/SQL programs, and all PL/SQL programs are composed of blocks.PL/SQL consists of three parts: Variable description, program code, and exception handling

Oracle horizontal and vertical tables   I learned something about it some time ago. I am free to write it down today ~ Let's talk about the concept of horizontal table and vertical table. Let's take a look at the two figures below: The first

Run CMD in start -- run -- and then enter the sqlplus sys/password as sysdbaLog in with the Sys permissionThen you can perform the following operations ,:Create user test indentified by test;In this way, a user named test is created.However, at this

Turn: http://jzhua.javaeye.com/blog/182767 Last night, I went back and made a good arrangement about "Oracle database provides several different database start and close parties Then, I wrote an example. One problem occurs: ORA-12528: TNS: Listener:

Oracle export steps:1. Click "start"-"run"-Enter "cmd" and press Enter.2. Enter "exp" and press Enter.3. Enter "xxx/YYY @ xlpt239" and press ENTER // here XXX is the user name to export the database, YYY is the user password to export the database,

1. Description of the current situation: There are two databases: Oracle10g (ORA) and SQL Anywhere 9.0 (ASA ). The structures of these two databases are identical from the corresponding perspective, that is, all user information, table information,

Table sample: SQL> desc orders ; Name Null? Type ----------------------------------------- -------- ---------------------------- ORDER_ID NOT NULL NUMBER(12) ORDER_DATE

This is actually a fairly common question and not one that is often addressed adequately. the following is the, slightly edited text of a reply sent by Howard Rogers www.dizwell.com to someone who asked this exact question. the post is so good, that