Oracle

Four ways to modify the Oracle-nls_date_format time format change the display of the time display format in Oracle-nls_date_format in the following ways:1.可以在用户环境变量中指定（LINUX)。在用户的.bash_profile中增加两句：export NLS_LANG=AMERICAN      

In the work sometimes through the Plsql connection database name is the same, but on different IP hosts, so, how to differentiate the connection by plsql? Such as:See the picture, you will find that there are three different hosts are called ORCLBJ

Http://www.linuxidc.com/Linux/2012-07/66212.htmI used to summarize some of the questions about NULL in Oracle, and I happened to see another one in the process of reading today that we didn't notice before, which is the problem of using NULL in

Oracle create user, grant permissions, and delete user create user Oracle to tablespace users without permission alter user username quota unlimited on users;Creating a temporary tablespace create temporary tablespace test_temp tempfile '

This article describes an example of creating a parameter view in an Oracle database, with the need for a friend reference.How do I create a view with parameters in Oracle?In an Oracle database, views are not like stored procedures and functions,

Today, using Navicat to connect to the Oracle database, the following error was reported: "ORA-12737 Instant Client light:unsupported server character Set ZHS16GBK"From this error, it can be known that the client does not support the server-side

2012 using a little Oracle, at that time actually did not really understand the database, it is to use Toad to do some simple management, and then moved to SQL Server began to have some knowledge of the database this thing. Using SQL Server for more

　 major updates to the DATAUML Design1.5 version include:：1, optimize the database login interface;2, Query Analyzer smart tips;3, optimize the database browsing plug-in, database login components, support history cache;4, Support no Oracle client

This document is based on the relevant data collated, summarized, mainly on the Oracle database, to obtain the most authoritative and correct method of SQL statement execution plan, and also explained in detail the meaning of the options available

Sqlplus How to connect to a database1> cmd input: sqlplus user name/password @ DB instancesuch as: Sqlplus System/[email protected],Sqlplus Sys/admin as Sysdba2> Open Sqlplus Enter your username and password directly3> use command: Connect sys/admin

4. Business4.1 Concept of the businessStarting with the first DML statement, either rollback or commit is the closing tag, and all previous DML operations (Insert,update,delete) are within the scope of the transaction.4.2 Commit operations for a

Install Oracle, there is always a warning two error error, the description is: OUI-18001: OS ' Windows Vista version 6.1 ' is not supported, find for a long time, finally found the reason, because Oracle does not support the WIN7 operating

Haha, just said the last one, idle bored and got a test.Environment:Os:redhat 5.8Db:oracle 10.2.0.5 Raw DeviceWe should develop the habit of often backing up OCR and Votedisk. However, OCR and Votedisk are not backed up and can be rebuilt. Just like

IndexAn index is an object in a relational database that is used to hold each record, and the main purpose is to speed up the reading speed and integrity checks of the data. Indexing is a highly technical and demanding task. Generally in the

one, user sys;//system administrator, with the highest authority system;//Local Administrator, sub-high privilege Scott;//Normal user, password default to Tiger, default unlockedSecond, landingSqlplus/ asSysdba//Login sys account sqlplus sys

Due to development needs, install the XP system in the virtual machine and install Oracle, install Oracle client and PLSQL developer in the host to simulate remote operation of Oracle database.The first thing to do is to install the Oracle database

SQL Server, MySQL, Oracle's respective default port numberSQL Server default port number is: 1433URL: "Jdbc:microsoft:sqlserver://localhost:1433;databasename=dbname"DriverName: "Com.microsoft.jdbc.sqlserver.SQLServerDriver";MySQL default port number

After the successful installation of the Oracle database, the first use of the following problem occurs,Here are just 3 ways to do this:L Sql*plusL OEM Control consoleL Windows Console1. Take the Windows console as an exampleA. Run the cmd command

(To) Oracle service usage After Oracle10g is installed, there are usually the following services: 1. OracleCSService The OracleCSService manages cluster configurations by controlling cluster node members and notifying these Members when to join and

Meaning of =) in oracle function parameters Today we see an MD5 encryption problem. Many languages provide encryption functions. oracle also provides MD5 encryption functions. I searched the internet and the encryption function is: