Oracle

First, the questionToday there is a magical problem-there is data in the table, but the result of select COUNT (*) is 0.The initial manifestation of the problem is that the query report has no paging.At first, I thought it was a Java-side problem.

The following is an introduction to rownum.======================================3. Use of rownum and row_number () over ()Rownum is a pseudo column provided by Oracle starting from 8. It numbers the SQL results and starts from 1. It is commonly

Fine-grained auditing (FGA) is introduced in Oracle 9i. It can record SCN numbers and row-level changes to recreate old data,However, they can only be used for select statements, but not for DML, such as update, insert, and delete

The Roundtable summations: 11 Views on Java's biggest challengesIndustry already ists set the agenda for Java directions in the year aheadBy Dan rub   Http://www.ftponline.com/javapro/2003_06/online/roundtable_03_06_25/   AT the close of the 20

  Oracle client installation path \ product \ 11.2.0 \ client_1 \ Network \ admin \ tnsnames. ora has the following content: # tnsnames. ora network configuration file: e: \ Oracle11g-client2-manager \ product \ 11.2.0 \ client_1 \ Network \ admin \

Normal 0 7.8 磅 0 2 false false false MicrosoftInternetExplorer4 The default data type of the adf bc is string. The basic data types provided in Oracle. JDO. domain and Oracle. Ord. Im

Oracle DML Statement (insert, update, delete) rollback Estimation 1. Introduction to Oracle dml SQL rollback Logic Database transactions consist of one or more DML (insert, update, delete) SQL statements. We know that the Oracle database uses the

Five methods for JDBC to read the Sequence Value of the newly inserted Oracle Database Oracle's sequence implementation is very flexible, so it also brings about some usability issues. How to obtain the sequence value generated by the new inserted

[Oracle entry series] Chapter 2 _ Functions -- v512 studio Editor: Xuan Yu Function Nvl () function Count () function Case expression   My blog Date type Nvl2 () function Dedode () function Having clause

As an Oracle DBA, we sometimes need to track the accidental deletion of data or malicious user operations. In this case, we not only need to find the database account that executes these operations, you also need to know which client (IP address,

[51cto.com exclusive Article] in the face of panic customers and widely-questioned media, Oracle has finally published an advertisement titled "Sun MERs, Oracle plans. Oracle is about to increase investment in both the world's host and Solaris

Oracle 11g real-time SQL monitoring Oracle,In-depth analysis of Oracle,Reading Notes April 9 th, 2010Author: dbtan | [indicate the source and author information in hyperlink form during reprinting] Link:

The first time Oracle 11g R2 Active Data guard is configured today, after physical standby database is created with rman,The following error occurs when you try to open standby in read only mode: SQL> alter database open read only;Alter database

Oracle data type description-date type Oracle data types seem very simple, but many knowledge points will be found in use. This article is my summary of Oracle date data types, all of which are getting started with development. share with you:Note:

In the Oracle ERP method system, the application implementation method belongs to the implementation management category. From the aim process, we can see that the system timeline is divided into six phases: ◆ Definition stage)◆ Operations Analysis)◆

Integrity constraints Integrity constraints are used to enhance data integrity. Oracle provides five integrity constraints: CheckNot nullUniquePrimaryForeign key Integrity constraints are a rule that does not occupy any database space. Integrity

  After Windows 7 is installed, an error occurred while installing oracle11g. Windows 7 is incompatible with Oracle 11g. modify OracleYou can continue to install the configuration file. The details are as follows: Decompress the Oracle 11g

-- The following is a summary of the startup command: LSNRCTL [Start | stop | status] -- start the listener, stop the listener, and view the listener status; Net [Start | stop] oracleserviceorcl   1. Independent startup: Microsoft Windows 2000

Problem description:When installing Oracle 10 Gb, the first condition detection will appear"Checking Network Configuration Requirements... the check is complete. The overall result of this check is: not executed Proposal: Oracle supports

If you have installed another version of Oracle, uninstall it first. For the uninstall steps, see: Http://blog.csdn.net/DavidHsing/archive/2010/09/15/5885700.aspx     Installation Steps   Decompress the oralce 10g installation image to the hard