Solved

Comparison between IBM DB2, Oracle 9i, and SQL Server 2000

Posted on 2006-10-26
4
587 Views
Last Modified: 2008-03-06
I need to know the difference between the 3 DBMSs (IBM DB2, Oracle 9i, and SQL Server 2000) in the following features:
1) Bitmap/hash index
2) Multimedia data types: binary large object (BLOB)
3) Can use multiple CPUs for intra-query parallelism
4) B-tree/clustered index types
5) Can run Enterprise JavaBeans in the database
6) Creates incremental/full backups
7) Left/right/full outer joins


Please help me as soon as possible.
0
Comment
Question by:ASKARIAM
  • 2
4 Comments
 
LVL 30

Expert Comment

by:nmcdermaid
Comment Utility
5) Can run Enterprise JavaBeans in the database

SQL Server can't do this but it does the rest.
0
 
LVL 4

Accepted Solution

by:
Sowmya_K earned 250 total points
Comment Utility
1) SQL Server's optimizer takes care of this functionality internally and dynamically. Bitmap filters are created automatically when processing the results of hash joins or parallel query results to drastically reduce the data volumes.
Oracle and DB2 have them and had them for a long time.on IBM and Oracle's web site they have benchmarks on how bitmap indices improve speed and performance on low cardinality rows.

2)IBM DB2, Oracle 9i, and SQL Server 2000 support BLOB

3) All three can use multiple CPUs for intra-query parallelism
www.microsoft.com/technet/prodtechnol/sql/70/maintain/sql7qp.mspx
www.oreilly.com/catalog/oraclepp/chapter/ch01.html
www.pdc.kth.se/doc/SP/manuals/db2-5.0/html/db2q0/db2q002.htm

4)
SQL Server
=========
B+-Tree data structure
Clustered indexes are sparse
Indexes maintained as updates/insertions/deletes are performed

DB2
====
B+-Tree data structure, spatial extender for R-tree
Clustered indexes are dense
Explicit command for index reorganization

Oracle
====
B+-tree, hash, bitmap, spatial extender for R-Tree
No clustered index until 10g
Index organized table (unique/clustered)
Clusters used when creating tables.

6)All three support full/incremental backup

7)
Oracle
====
SELECT S.SSN AS SSN,
FNAME, LNAME
FROM STUDENT_ADMIN.STUDENT S,
DEPT_ADMIN.CLASS C,
STUDENT_ADMIN.GRADE G
WHERE S.SSN = G.SSN(+)
AND G.CCODE = C.CCODE(+)

MSSQL
=====
SELECT S.SSN AS SSN,
FNAME, LNAME
FROM STUDENT_ADMIN.GRADE G
RIGHT OUTER JOIN
STUDENT_ADMIN.STUDENT S
ON G.SSN = S.SSN
LEFT OUTER JOIN
DEPT_ADMIN.CLASS C
ON G.CCODE = C.CCODE
0
 
LVL 4

Expert Comment

by:Sowmya_K
Comment Utility
0
 

Author Comment

by:ASKARIAM
Comment Utility
Thanks nmcdermaid ,
Thanks Sowmya K,

I really appreciate your cooperation and your help.

Thanks again,
0

Featured Post

Better Security Awareness With Threat Intelligence

See how one of the leading financial services organizations uses Recorded Future as part of a holistic threat intelligence program to promote security awareness and proactively and efficiently identify threats.

Join & Write a Comment

APEX (Application Express) is used to develop a web application from Oracle. SQL Workshop is one of the tools that comes with Oracle APEX to query or modify the database objects or to make any changes to the structure.
Never store passwords in plain text or just their hash: it seems a no-brainier, but there are still plenty of people doing that. I present the why and how on this subject, offering my own real life solution that you can implement right away, bringin…
Video by: Steve
Using examples as well as descriptions, step through each of the common simple join types, explaining differences in syntax, differences in expected outputs and showing how the queries run along with the actual outputs based upon a simple set of dem…
Polish reports in Access so they look terrific. Take yourself to another level. Equations, Back Color, Alternate Back Color. Write easy VBA Code. Tighten space to use less pages. Launch report from a menu, considering criteria only when it is filled…

763 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

14 Experts available now in Live!

Get 1:1 Help Now