Oracle

1. Nls_lang parameter compositionThe Nls_lang parameter consists of the following sections:Nls_lang=_. The meaning of each part of the Nls_lang is as follows:Language specify:Language used by-oracle messages-month and day display in dateTerritory

The most recent deletion of users in Oracle is always an error, and the message is: ORA-00604: Recursive SQL Layer 1 error occurred ORA-00942: Table or view does not exist According to the online solution found that the following test method is

Recently downloaded a set of Oracle database exercises (no answer), I practice the answer on Oracle, if the wrong place, please do not take it amiss. Save to the blog to facilitate their own later lookup. Related tables: /* Student table /CREATE

Create the following in the Sqlplus:1, Package Create or Replace package types as type CursorType is REF CURSOR; End / The package has been created. 2. functionCreate or Replace function sp_listemp return types.cursortype as L_cursor

Sql> Select COUNT (*) from V$session #当前的连接数Sql> Select Count (*) from v$session where status= ' ACTIVE ' #并发连接数Sql> Select value from v$parameter where name = ' processes '--maximum number of connections allowed by databaseSql> Show parameter

Why use the job:A job allows a user to schedule and schedule a task in advance, allowing it to be automatically executed one or more times during a specified time or time period, and is highly efficient because the task is executed in the

The background: My new entry company less than two months, our project using the Tomcat Profile link Project WebApp, while the Tomcat management data source (that is, in the Tomcat directory Conf\catalina\localhost configuration project path and

My present date format is, to be changed into English needs to enter the command: ALTER session SET Nls_date_language=american;Changed to: If you want to change English to Chinese, you can use the command: Alter session set nls_date_language= '

First, cold backup The process by which the database completes copies of all physical system files in the shutdown state, also known as offline backup Suitable for non-archive mode, the database is in a consistent state Second, the steps First you

OracelAnalysis function: You can remove the first (last) data in the group First_value () over (partition by ...) Last_value () over (partition by ...) Create TableAtem ( CO1 VARCHAR2(10), CO2 INTEGER ) Insert intoAtem (CO1,CO2) Values(' A ', 1);

1. Nls_lang parameter composition The Nls_lang parameter consists of the following sections: Nls_lang=_. The meaning of each part of the Nls_lang is as follows:Language specify:Language used by-oracle messages-month and day display in dateTerritory

http://welcomyou.javaeye.com/blog/371189 Ja16sjistilde Japanese_japan. Ja16sjistilde Oracle Nls_lang Summary Keyword: Oracle Nls_lang character Set character set to get a database from the customer, the client's database server is Ja16sjis, and

http://junmail.javaeye.com/blog/137996 1. Nls_lang parameter compositionThe Nls_lang parameter consists of the following sections:Nls_lang=_. The meaning of each part of the Nls_lang is as follows:Language specify:Language used by-oracle

Install exception: Info: Oracle Database Configuration Assistant failed Log:c:\program Files\oracle\inventory\logs\installactions2014-10-24_10-56-40pm.log My solution:Skip this step in accordance, you can ignore the first, after installing the

Steps: (1) Create job (2) Create job Dbms_job.submit (); Submit (Jobno out Binary_ineger,What in Varchar2,Next_date in Date,Interval in varchar2,No_parse in Booean:=false)　　The Jobno parameter is the Binary_ineger returned by the submit () procedure.

First, locate the database failure reason. The reason for positioning can be divided into three steps: 1, if there is an Oracle error number or alert log detailed error information, you can locate the reasons for the database failure; 2, if not, you

Nested cursor loops   Create or replace procedure xh_number_186_diff_p is  begin    declare    in Oracle stored procedures ;  -Query out a set    www.2cto.com       CURSOR c_number is        SELECT Numbe r186, money186          from xh_number_186

/* Login/* c:>sqlplus/nolog; ... Sql> conn/as sysdba (Local database) sql> conn user/passwd ; (Switch User) /* Create an empty table with the same table column name and type as already exists. CREATE TABLE Table_bak As SELECT * FROM table

A Getting Started section 1. Create a table spaceCreate tablespace schooltbs datafile ' D:\oracle\datasource\schooltbs.dbf ' size 10M autoextend on; 2. Delete a table spaceDrop tablespace schooltbs[including contents and datafiles]; 3. Query table

OracelAnalysis function: You can remove the first (last) data in the group First_value () over (partition by ...) Last_value () over (partition by ...) Create TableAtem ( CO1 VARCHAR2(10), CO2 INTEGER ) Insert intoAtem (CO1,CO2) Values(' A ', 1);