Oracle

In the Windows enterprise operating system, uninstall Oracle 9i: 1. Stop all Oracle services 2. Delete All Oracle items in the Registry (1) Delete the Oracle directory under HKEY_LOCAL_MACHINE \ Software (2) Delete All Oracle items under

After oracle is installed, there will be many default users. How can this problem be solved? Anonymous, ctxsys, Dbsnmp, HR, MDSYS, ODM, middleware, Oe, olaosys, ordplugins, ordsys, outln, PM, pblic, QS, qs_adm, qs_cb, qs_es, qs_ OS, qs_ws, RMAN,

The following are number examples forTo_charFunction. To_char (1210.73, '192. 9 ') Wocould return '192. 7' To_char (1210.73, '123 ') Wocould return '000000' To_char (1210.73, '$9,999.00 ') Wocould

This article is about Oracle Database debugging and optimization. It mainly introduces hit rate issues in Oracle databases, including performance comparison between different algorithms. Computing of various hit rates in Oracle and related Tuning 1)

Analyze table tablename compute statistics; Analyze index indexname compute statistics; It is very beneficial to use CBO, and more reliable table information can be used, so that the execution plan can be more accurate. In 10 Gb, analyze is

There are several startup methods: 1. startup nomount Non-installation startup. In this mode, you can execute: re-build the control file and re-build the database. Read the init. ora file and start the instance, that is, start the SGA and background

DBA-Oracle.com is a well-known foreign Oracle expert service company (pythian.com is another), let's take a look at their Oracle service charges: Transferred from http://www.anysql.net/dba/oracle_consult_price.html: The service is becoming more

Create a temporary Oracle table CREATE GLOBAL TEMPORARY TABLE TABLENAME (COL1 VARCHAR2(10),COL2 NUMBER) ON COMMIT PRESERVE(DELETE) ROWS ;   This temporary table does not occupy the tablespace, and the data of the other table cannot be seen between

I want to use the Oracle database to update data when I was building an ASP. NET Website. The fields in the table include int, string, and date. net front-end controls always encounter problems when binding updates. I checked a lot of things online

We often use Oracle to create and delete users. The following describes the implementation process of Oracle to create and delete users in the form of instances. We hope this will help you. Create a user instance in Oracle: First, use the Sys user

SQL ************************************* **********Create Table AA(A_id number (10) primary key,A_name varchar2 (50 ),A_sex varchar2 (4 ),A_date date,A_money number (8, 2))-- Check whether the operation is successful.Select * from AA;-- Create a

Add formOpen the template, change it to the name you want, delete blockname and detailblock in data blacks, delete blockname in canvases, delete blockname in windows, and add your own windows, canvases, and dateblacks, in form-level PRE-FORM, change

Oracle8 Select a. *, B. * from a, B where a. ID (+) = B. ID -- equivalent to right join Select a. *, B. * from a, B where a. ID = B. ID (+) -- equivalent to left join Oracle9Supports the above writing, and also adds leftjoin, right join,

Source: CCID The initialization parameters that affect Oracle system performance are as follows:: SGA (system global zone)The system global zone (SGA) is a memory segment allocated to the database containing an oracle instance.1. It mainly includes

1. Remove the power of the priv network switch. rac2 reboot and Rac1 work normally. [Oracle @ mesdb01 ~] $ Crs_stat-T Name type target State host ------------------------------------------------------------ Ora. Mes. DB application online

1. Cannot connect to the Database. "invalid username or password" Following are the probable causes for this error message: A. the ADI sign on (security) has not been set up correctly (check this onlyIf this is a fresh install). Check the 3 cones

The combined arrays of PL/SQL are used here. I want to insert a group of records separated by '_' into the database. Of course, this is just to facilitate batch insertion from Java calling the stored procedure.   First define the array type and a

1. Create a New tablespace:Create tablespace newxxt Datafile '/Oradata/dduyoung/newxxt1.dbf' size 200 m autoextend on next 10 m maxsize unlimited, '/Oradata/dduyoung/newxxt2.dbf' size 200 m autoextend on next 10 m maxsize Unlimited Extent management

Original article: http://xace.javaeye.com/blog/434537 /* In actual use of SQL, the value of a column is always displayed in the title, that is, the conversion or interchange of the rows and columns.For example, the following data is available:ID

  I sorted out the DB hang issue during the shutdown process yesterday. For details, refer: Dbhang solution during oracleshutdown Http://blog.csdn.net/tianlesoftware/article/details/7407587   Today, my colleague modified the stored procedure, which