Oracle

Windows7 installation of oracle11g, 10G, will prompt the following informationChecking operating system requirements ...Required result: one of the 5.0,5.1,5.2,6.0Actual results: 6.1Check complete. The overall result of this check is: Failure Issue:

In order to facilitate learning and testing, all examples are created under the Oracle's own user Scott.CREATE TABLE EMP (  empno    number (4) Not null,  ename   VARCHAR2 (Ten),  job   &NB Sp VARCHAR2 (9),  Mgr      number (4),  hiredate date,  sal

The approach to group by is no longer burdensome, as is the case in advanced mode.Reference teacher article: http://blog.csdn.net/fu0208/article/details/7183258, pay tribute to the teacher, hardIn order to facilitate learning and testing, all of the

Create a separate DB instanceDatabase 1 Database 2ORCL Law------RDBMS (Service)| |-----------------------Installing the Database software (DBMS)Create a separate Rdbms--law[Email protected] ~]# Xhost +Access control disabled, clients can connect

Isqlplus Tool Description: When maintenance is used to query the view or to perform DML use, the interface is intuitive, but can not execute commands, such as the start and shutdown of Oracle1. Start the service[[email protected] ~]$ isqlplusctl

Original works, from the "Blue Blog" blog, Welcome to reprint, please be sure to indicate the following sources, otherwise, the legal responsibility to pursue copyright. Deep Blue Blog:First step: Catalog-- Database Files directory$ cd $ORACLE _base/

Requirements: There is a column name, VARCHAR2 type, the content is as followsThe above is sorted by the order by name, but not the result we wantNow you need to sort by numbers onlyFirst step: Extracting numbersSince the number has a two-bit one,

A missing pdksh-5.2.14 package was encountered while installing 11.2.0.4 on Oracle Linux 7From:Missing pdksh-5.2.14 Package during Oracle database 11.2.0.4 Install on Oracle Linux 7 (document ID 1962046.1)Suitable for:Oracle database-enterprise

Summarize:1. Three configuration files are placed in the $oracle_home\network\admin directory.2.sqlnet.ora Determining the parsing mode3.listener.ora on Sid_name, typically used for JDBC access, with a corresponding error code of 125054.tnsnames.ora

Both the Windows environment and the UNIX environment enable automatic database startupIn the Windows environment:The experimental method is relatively simple, by modifying the registry or by using the Oradim command:Oradim-edit -startmode

From:Oracle 12CR1 relink Error: "Ld.so.1:skgxpinfo:fatal:libons.so:open failed:no such file or directory" (document ID 1957810.1 )Suitable for:Oracle database-enterprise edition-version 12.1.0.1 and laterGeneric UNIXSymptoms:Throw an error when

When the NFS server goes down, the Oracle database freezes and there are no errors in the alert fileTranslated from MoS article: when NFS server was down, Oracle server freezes with No Errors in Alert Log File (document ID 1316251.1)Suitable

Look at the contents of the table you are using firstSELECT * from YHB;Desired effectConcatenate strings for the isdropout column of times 1Isdropout TimesYes, no, it's 1.1. Using the Wmsys.wm_concat (EXP1) functionThe SQL statements are as

1. User-Createdsql> CREATE USER rusking2 identified by rusking3 Default Tablespace users-specifies that the defaults table space is users. If you use the system default Tablespace, you can actually do so without specifying it.4 QUOTA 10M on the

In an SQL statement, you can define a variable before you use it, and you can use that variable multiple times in the same SQL statement. You can use the Define or accept command to define variables, and you can use the undefine command to delete

The SGA size for Oracle 10g library startup is determined by Sga_target and Sga_max_size and is discussed in the following three scenariosSga_target=sga_max_sizeParameter file specified value*.sga_target=599785472StartSQL> startupORACLE instance

--1. Create TABLE SpaceDROPTablespace flhis including CONTENTS anddatafiles;CREATEtablespace flhis datafile'F:\app\oracle\oradata\orcl\flhis.dbf'SIZE 200M Autoextend on NEXT2M MAXSIZE unlimitedloggingonlinePERMANENTEXTENT MANAGEMENT LOCAL

Oracle's unsafe factors and several points As an outstanding representative of Object Relational Database Service, Oracle is undoubtedly the most powerful. Oracle is much better than SYBASE and Informix in terms of database scale, multimedia data

How to set the oracle primary key Primary key: 1. primary key constraint: A table can have only one primary key constraint. The primary key can be a single field or multiple fields. In either case, all the fields are not null.2. Unique constraint: A

How do I determine whether the connection mode of the oracle database is dedicated or shared? This problem is related to the shared_servers and dispatchers parameters, as well as the TNSname. ora file on the server and client. The shared_servers