Oracle

How does delphi connect to Oracle (local server IP Address: 127.0.0.1)? Delphi/Windows SDK/API Http://www.delphi2007.net/DelphiDB/html/delphi_20061218083334247.html As the question. I found some remote server documents, but what's wrong? Sid:

I have paid a lot of effort to improve it ........ You only need to define the following basic variables in the batch processing to generate clone instances of any Sid to any directory. Set oracle_base = D: \ Oracle10g \ app \ oracle \ product \ 10

Oracle Database glossary Structured Query Language (Structured Query Language) --- Structured Query Language VPD (Virtual Private Database) --- virtual private database OAS (Oracle Application Server) --- Oracle application Program server

For a while, I was confused about Oracle multi-table queries. The reason is that Oracle's own syntax is mixed with SQL's international standard syntax. ThisArticleIt is only suitable for Oracle cainiao, and old birds fly directly... Multi-Table

Use and Maintenance of Lob fields in Oracle This document introduces the basic methods for using and maintaining the lob data type in Oracle databases through the dbms_lob package. Keywords: Oracle dbms_lob lob Maintenance Graph classification: TP31

Comparison:Select * from TTable1 for update locks all rows in the table and can only be read and cannot be written.2 select * from TTable1 where pkid = 1 for update only lock the row with pkid = 13 select * from Table1 a join Table2 B on a. pkid = B.

It may be necessary to switch to different databases frequently because of work requirements. Let's take a look at how to migrate MySQL Data to Oracle. It may be necessary to go through different database tutorials frequently because of work

This article describes how Oracle uses odu to verify rman backup to process command instances for truncate object backup. If you need rman backup, you can refer to this article. By Digging data files before and after rman backup through odu, we know

Software environment: 64-bit win7, 32-bit Oracle 10g, PL/SQL 9.0.4.1644 In the past, 32-bit systems were used for development and suddenly switched to 64-bit systems. The installation environment was a little troublesome, especially for PL/SQL,

There are three ways to throw an exception 1. Use the PL/SQL Runtime Engine2. Use the RAISE statement3. Call the Stored Procedure RAISE_APPLICATION_ERROR.When an error occurs during database or PL/SQL running, an exception is automatically thrown by

At the end of last year, a lot of system data migration was conducted. Most of the systems performed logical migration due to platform and version reasons. A few of them performed physical migration and some experiences were made, share with

Differences:1. Primary keys. Oracle cannot implement auto-increment, and mysql can implement auto-increment.Oracle new sequence, SEQ_USER_Id.nextval2. Index:Mysql index starts from 0 and Oracle starts from 1.3. Paging,Mysql: select * from user order

Union and Union ALL merge query result sets of SELECT. What are their differences?Union re-queries the query result set and removes the same rows. Disadvantages: Low Efficiency;Union ALL only merges the query result set and does not re-query. It is

The ora 12154 error is reported when plsql is connected to the oracle database.Today I encountered a problem that sqlplus can be used to connect to a remote database, but plsql cannot be used to connect, error "ORA-12154: TNS: Unable to parse the

Format:SELECT columnFROM table_nameStart with column = valueConnect by prior parent primary key = Child foreign keySelect lpad ('', 4 * (level-1) | name, job, id, super from empStart with super is nullConnect by prior id = superExample:Raw data:

Sys; // System Administrator with the highest PermissionsSystem; // local administrator with the next high permissionScott; // common user. The default password is tiger and is not unlocked by default.Sys; // System Administrator with the highest

Once the oracle database is successfully installed, the related database information is displayed: Global Database Name: oracleSystem identifier (SID): oracleServer parameter file name: c: \ oracle \ product \ 10.2.0 \ db_1/dbs/spfileoracle.

//************************************** *********************************// Function name: of_zy_yzfy for n_medicare_minihis// Function Description: Submit the doctor's advice when the doctor's advice is entered// Function parameters:// 1.

The ORACLE tutorial is: Oracle Database and application optimization Developer Network Oracle. Introduction: work in detail. The difference between a master and a cainiao is that the master knows everything and the cainiao knows something. Computer

The ORACLE tutorial is: Oracle-based high-performance dynamic SQL program development. Abstract: This article summarizes the development of dynamic SQL programs and provides several development skills based on the actual development experience of