Hi friends, this is sunny kumar.............
we have already discussed about database and oracle, but we have lefted some topics. now m going to covering all that topics here. thiis post is something like Backup post that related to older post.
Database: A database is a collection of interrelated data and typically stored in disk. A databsae has different types that is give here.
DBMS
HDBMS 1970s
NDBMS
RDBMS 1980s
ORDBMS 1990s
OODBMS
This level shows that innovation of Database in mannerd way.
* HDBMS and NDBMS is an outdated system that is not in use yet. Evey organization adopted RDBMS concept.
What is RDBMS ?
RDBMS stands for Relational Database Management. In RDBMS Data organized in table format. Dr. E.F CODD introduced RDBMS concept.he is also known as father of RDBMS. He purposed 12 rules. these rules is known as CODD rules. A DBMS satisfies all CODD rules is called pure RDBMS, but no one satisfies all CODD rules. Oracle satisfies highly 11 1/2.
