Oracle

Recently, I have installed a version of 11g on my machine because I want to learn oracle. But I didn't think that Oracle didn't give me a face at all. After the Enterprise Edition was installed, my machine was too slow. There is no way, so I have to

Currently, the project database is changed from sqlserver to Oracle. Therefore, all SQL statements in the project must be changed to the oralce-supported style. This table is updated during the process. After an afternoon, I finally got it done.

A recent Asp.net security vulnerability has causedCommunityThe blog also has a topic about ASP. NET padding Oracle Security Vulnerabilities. I posted a post on my blog yesterday.ArticleTemporary solutions to ASP. NET security risks. This article

After the client of oracle8 or later is installed, oledb for Oracle of ADO cannot be used. However, the client that used 8 and 8 I has never had this problem. The solution is finally found today. Cause: http://msdn.microsoft.com/en-us/library/ms15251

In general, there are not many chances to use fetch in batches, but we 'd better get familiar with this feature provided by Oracle, and maybe it will be used at any time.   Below isCodeFragment:DeclareCursor C1 is select * From

Today, I found a strange problem when I wrote an oracle statement. I had to find the cause for a long time. Ask Daniel for help. The problem is simplified as follows: Select seq, info, topic from system. Help where seq in (select distinct seq from

Some time ago, when I used Oracle 10 Gb for import, a very strange error occurred, and I found no cause or solution for a long time, After the system was re-installed, Oracle10g 2 was re-installed and the data was re-imported. However, this error

Summary of Oracle Database Management Methods We often encounter such problems during our daily use of Oracle databases. Here I will summarize and share my problems and solutions, hope to help you. The main content is as follows: I. archiving log

1. Define Variables Declare n integer;//Define a single variable//Define multiple variablesDeclare n integer; mm integer; 2. Assignment N: =12; Mm:=100; For statement Declaren integer; mm integer; Beginn:=12; Mm:=100;ForNIn

Oracle 10g listener ProgramCannot start normally?   Error message: Start tnslsnr: Please wait...TnslsnrFor32-bit windows: Version 10.2.0.3.0-ProductionThe system parameter file is D: \ app \ oracle \ product \ 10.2.0 \ db_1 \ Network \ admin \

When the data in the table is not required, delete the data and release the occupied space. To delete the data in the table, use the delete statement or the truncate statement. I. Delete statements (1) conditional Deletion Syntax format:Delete

Assume that the following vertical table exists. The first column is the ID of a business data, the second column is the type, and the third column is the value corresponding to the type, for example: As shown in the preceding table, there are

Database indexes store the column values of interest to users along with their row Identifiers (rowid ). Rowid contains the physical location of the table row storing the column value on the disk. Although indexes can improve the query

Function Index Select*From Demot WhereF7= 'F'; Select*From Demot Where Lower (F7) = 'F'; There was a bitmap index on F7, but after using the lower function, the whole table was scanned. Next, we will

I published an article in the garden a few days ago about Oracle batch insertion failure under NH. You can see the following address: http://www.cnblogs.com/shunderen/archive/2013/04/02/2994932.html This problem was also raised in the blog: http://q.

Often encounter problems where client-dependent tools such as PL/SQL developer cannot connect to the Oracle Database Server. So far, it has not been fully clarified. I will first post a summary of the current method, which will be improved in the

Where and having are both filtering the query results. The book points are the statements that set the conditions. The following describes the usage and similarities and differences. Note: The fields used in this article are the EMP table under

Alter any cluster modify the permission of any cluster alter any index modify the permission of any index alter any role modify the permission of any role alter any sequence modify the permission of any sequence alter any snapshot modify the

-- Create temporary tablespace Create temporary tablespace yhtemp Tempfile 'd: \ oracle \ oradata \ Oracle10g \ yhtemp. dbf' Size 50 m Autoextend on Next 50 m maxsize 20480 m Extent management local; -- Create a data table space Create

Create or replace procedure p_tx_getfaxdata()AsV_errorcode number; -- error codeV_errormsg varchar2 (200); -- error message displayV_currentuser varchar2 (8); -- Current Database UserV_information varchar2 (100); -- error information Begin // Do the