Oracle

C # Use System. Data. oracleclient to connect to the Oracle database. Previously running normally on WINXPProgramAfter porting to Windows 2008 x64, the database cannot be connected. The error message is as follows: Badimagefomatexception is thrown

View the default tablespace of the current user SQL> select username, default_tablespace from user_users; View the role of the current userSQL> select * From user_role_privs; View the system and table-level permissions of the current userSQL>

The sys user logs in as a DBA under cmd: Run sqlplus/nolog in cmd. ThenConn/As sysdba Note: 1. If it is enabled in tools such as PL/SQL, directly modify the followingCodeMedium[Italic bold Section]Run 2. Make sure the path exists,For

1.Query all tables under a user Select table_name from all_tables where owner = 'Scott '; query all tables belonging to the Scott user   2.QueryEMPAll fields (columns) in the table) Select * From all_tab_columns where table_name = 'emp ';  

View the default tablespace of the current user SQL> select username, default_tablespace from user_users; View Current User role China SQL> select * From user_role_privs;   View the current user's system permissions and table-level

The built-in Oracle functions sqlcode and sqlerrm are especially used in the others processor to return Oracle errors respectively. CodeAnd error messages.   Others processor should be the final exception processor in the exception

Two days ago, Oracle10g was successfully installed in Linux. Every time you start the Oracle database, you log in with an oracle user and execute dbstart to start the database. An error is reported at each startup. Failed to auto-start Oracle Net

How to change the location of the configuration file in recent days has finally succeeded! It can be said that it took 9 cows and 2 tigers! I used Oracle 10.2 as a reference for several books, and the tree said it was very simple, but I could not

Alter any cluster: modify the permissions of any clusterAlter any indexAlter any role Modify permissions of any roleAlter any sequenceAlter any SnapshotAlter any tableAlter any triggerAlter cluster Modify permissions on clustersAlter Database:

FAQs about Oracle Development SQL Server and Oracle are the most common databases in daily project development, but more beginners may be more familiar with SQL Server, because Microsoft is easy to use, it is silly. However, Oracle's position in

This article from http://www.blogjava.net/reeve/archive/2007/08/01/133759.html   Recently, due to work relations, I began to contact GIS and developed it using open-source geoserver, geotools, and mapbuilder. The database uses Oracle spataral,

The like keyword is queried in Oracle. When I use like to perform a fuzzy search, I find that the data volume is incorrect. The table structure is as follows: -- Create Table Create Table Neoerp (ID Number ( 22 ) Not Null , Productname

Install Oracle 11gr2 on fedora 12 This articleArticleThe installation tutorial for Oracle-base is mainly translated. However, due to the awkward translation of the English language into Chinese, there are still some imperfections in his article.

Statement of Oracle row-to-column conversion (posting ): Row-to-Column Create Table t_row_colSelect ID, 'c1 'cn, C1 CVFrom t_col_rowUnion allSelect ID, 'c2 'cn, C2 CVFrom t_col_rowUnion allSelect ID, 'c3' CN, C3 CV from t_col_row; Select *

To_date ("string to be converted", "format to be converted") The format of the two parameters must match. Otherwise, an error is returned. That is, the first parameter is interpreted according to the format of the second parameter. To_char (date,

C # Use instantclient to connect to Oracle 10 GB 1. Download instantclient-odbc-win32-10.2.0.3.zip from the oracle.com. 2. decompress the package to the instantclient directory. 32.16double-hit odbc_install.exe 4. Control Panel->

Some netizens have raised some very basic questions, such as whether a function has implemented a certain function, what is a function used for, and what is the format, at the same time, I also felt my lack of knowledge about Oracle functions, So I

For installation of Oracle 10 Gb, see the previous article.ArticleNow, test the connection effect after installation. Using system;Using system. Collections. Generic;Using system. componentmodel;Using system. Data;Using system. drawing;Using

1. Modify the field data type Syntax:Alter table name MODIFY (column name data type );Eg1:Alter table emp modify (column1 VARCHAR (10 )); When modifying the length of a column, you can only edit a longer length than the existing field actually

Contract-related table SELECT Okv. Variable_ValueFROM Okc_Bus_Variables_Tl Obt,Okc_k_Art_Variables Okv,Okc_k_Articles_ B Oka WHERE Oka. Id = Okv. Cat_IdAND Okv. Variable_Code = Obt. Variable_CodeAND Oka. Document_Type = p_Document_TypeAND Oka.