Oracle

Udisk database migration1. Create the tablespace used by udisk users-- Create user tablespaceCreate tablespace udisk datafile 'e: \ oracle92 \ oradata \ udisk. dbf'size 100 mUniform size 10 m; 2. Create a udisk user and set the initialization

How to Use PLSQL developer to import and export data from an Oracle database There are three ways to export table data using PL/SQL developer: Oracle export, SQL insert, PL/SQL developer The table structure and index structure remain unchanged

Select a. Month, nvl (B. amount, 0) Amount-- Decode (B. amount, '', 0)From (select to_char (sysdate, 'yyyy') | lpad (level, 2, 0) monthFrom dualConnect by level (Select to_char (sum (T. txn_amt) + sum (T. coupon_amt)/100 ),'Fm999, 100')

[Sqlserver ]: Sqlserver considers null to be the smallest. Sort in ascending order: The null value is ranked first by default. Order by case when col is null then 1 else 0 end, Col Sort in descending order: The null value is ranked last by

When the character set in Oracle on the local machine is inconsistent with the character set on the server, non-English characters will become garbled. the following solutions are available: 1. view the character set of the server and the local

ProblemAfter ASP. NET and Oracle9i clients are installed, the following information is received when you access the Oracle database using system. Data. oracleclient: System. Data. oracleclient requires Oracle client software version 8.1.7 or

Problem description: SetOracleThe table structure of all user tables in the database is exported and storedExcelShows the storage information in the table: Select a. table_name, A. Comments, B. column_name, B. Comments from user_tab_comments A, user_

Create user test identified by "test" -- create a test user Default tablespace users Temporary tablespace temp Profile default; Grant connect, create view, resource to test; Grant unlimited tablespace to test;     -- Administrator

For beginners, there are always the following questions about the connection between client tools and database servers: Do I have to install the Oracle database on a local machine? If I have installed an Oracle database locally, why is it so

Problem description: Use PL/SQL developer 9.0.6 on Windows 7 (32-bit) to remotely connect to the Oracle 10.2.0 database in Linux (64-bit. The Oracle client used on Windows is a instantclient-basic-win32-10.2.0.3-20061115 and

Document directory Question 1: Question 2: Question 3 Question 4: self-starting Question 1: Dbstart error: failed to auto-start Oracle Net listene using/Ade/vikrkuma_new/Oracle/bin/tnslsnr After successfully installing Oracle10g in Linux,

Condition branch statement• If statement:-If-then-end if-then-else-end if-IF-THEN-ELSIF-END if-case statement :• Loop statement- Loop Syntax: If condition then statements; [elsif condition then statements;] [else statements;] end if; Condition

• Composite variables are also called composite variables. Composite variables include multiple internal components, and each component can store values separately,Therefore, a composite variable can store multiple values.• The composite variable

Import Java. SQL. connection; Import Java. SQL. drivermanager; Import Java. SQL. resultset; Import Java. SQL. sqlexception; Import Java. SQL. statement; public class testjdbc { Public static void main (string [] ARGs) { connection conn = NULL;

The following describes how to configure Sun Java in Ubuntu 10.04. Install the open-jdk-6, sudo apt-Get install open-jdk-6 (I don't know why this doesn't run Java and javac commands !!!) Go to Oracle official website to download

It took me a long time, First, if you have the permission to change the database settings, the problem does not exist. However, in most cases, the database settings cannot be changed, because other programs may also be retrieving data from this

Create a stored procedure under Scott in Oracle: (Note: Starting from 9i, sys_refcursor is available. In earlier Oracle versions, you must use ref cursor and put it in a package) Create or replace procedure sp_getdept (Result out

Preparation: Environment: PL/SQL + Oracle9i + vs2008 Create Table test: Create Table Test(ID number, // numberName varchar2 (10), // nameSex varchar2 (2), // genderAge number, // ageAddress varchar2 (200) // address) 1. Execute the Oracle stored

Stored Procedure  I. Multi-table join query and updating stored procedures SQL stored procedureAlter procedure [DBO]. [getevent]@ Scswid nvarchar (20) = NULL,@ Todate datetime,@ Fromdate datetimeAsSelect notes. note_id,Notes. Note,Scsw_calendar.date_

MySQL: Add a single column: Alter table table name Add column Name Data Type Add multiple columns:Alter table table name Add column name 1 Data Type 1, add column name 2 data type 2 Modify the Data Type of a single column:Alter table table name