oracle slides06 fp2005 ver 1.0

The version of Oracle database server•SELECT banner FROM v$version; – This statement will generate the following output: BANNER ---Oracle9i Enterprise Edition Release 9.0.1.1.1 - Product

New Features of Oracle

Oracle Day 6

 New features of Oracle 9i

 New features of Oracle 10g

The version of Oracle database server

•SELECT banner FROM v$version;

– This statement will generate the following output:

BANNER -Oracle9i Enterprise Edition Release 9.0.1.1.1 - Production PL/SQL Release 9.0.1.1.1 - Production

CORE 9.0.1.1.1 Production TNS for 32-bit Windows: Version 9.0.1.1.0 - Production NLSRTL Version 9.0.1.1.1 - Production

•In the following slides we are going to have a brief overview of the myriad new features and enhancements to performance, scalability, ease of use and management that have been made in Oracle9i and Oracle 10g.

New features of Oracle 9i – 1/4

• Renaming Columns

– Oracle allows to rename existing columns in a table Use the RENAME COLUMN clause of the ALTER TABLE statement to rename a column

– The following statement renames the q1 column of the scott.marks table.

SQL>ALTER TABLE scott.marks RENAME COLUMN q1 TO quiz1;

• Renaming Constraints

– The ALTER TABLE RENAME CONSTRAINT statement enables to rename any currently existing constraint for a table

– The new constraint name must not conflict with any existing constraint names for a user.

– The following statement renames the dname_ukey constraint for table dept:

SQL>ALTER TABLE dept RENAME CONSTRAINT dname_ukey TO dname_unikey;

New features of Oracle 9i – 2/4

• Constraint enhancements

– Enhancements to the USING INDEX clause of CREATE TABLE or ALTER TABLE allow to

specify the creation or use of a specific index when a unique or primary key constraint is created

or enabled

– Additionally, one can prevent the dropping of the index enforcing a unique or primary key

constraint when the constraint is dropped or disabled.

SQL>CREATE TABLE a ( a1 INT PRIMARY KEY USING INDEX

(create index ai on a (a1)));

• iSQL* Plus

– Oracle9i delivers a new, easy to use SQL*Plus tool called iSQL*Plus that is delivered through a web browser

– It generates output in nicely presented HTML tables

– To access it, type following URL in Web browser:

http://itl-lt-10027.ad.infosys.com/isqlplus where itl-lt-10027 is the Oracle server machine name and ad.infosys.com is the domain name

New features of Oracle 9i – 3/4

• Optimized PL/SQL

– Oracle9i has greatly improved the speed of PL/SQL execution, and most PL/SQL

applications will run faster

• New Dictionary Views

– The data dictionary has been enhanced to allow the DBA to see the execution plan

for SQL in the library cache with the new v$sql_plan view

• Automatic Undo Management

– Rather than having to define and manage rollback segments, one can simply define

an Undo tablespace and let Oracle9i take care of the rest

New features of Oracle 9i - 4/4

• Dynamic Memory Pools

– With Oracle9i, one can adjust the size of the memory pools (buffer pool, shared

pool, and large pool) without having to stop and restart the server

• XMLType

– This is a new datatype that lets you store native XML documents directly in the database

– XMLType eliminates the need to parse the documents coming into and out of the database

New features of Oracle 10g – 1/2

• Grid computing (g in Oracle 10g)

– The basic idea of grid computing is the notion of computing as a utility Its just like any electricity grid or a telephone network

– As a client of the grid one should not worry about the data or the place where

computation happen What one need is the right information at the right time

– From the server side of grid, its all about virtualization and provisioning One have

to pool his resources and provide them as and when business demands for them – Oracle 10g is the first integrated software infrastructure to power grid computing

New features of Oracle 10g – 2/2

• Usage of regular expression in SQL

– Improves one’s ability to search and manipulate character data This feature is a notation for describing textual patterns

– It has long been available in many programming languages and a number of UNIX utilities

• Data Pump utility

– Data pump utility is a replacement for the EXP and IMP utilities

• Flashback queries

– used to view old data, track data changes and recover from accidental data loss

• New features of Oracle 9i

• New features of Oracle 10g

Thank You!