- DBMS Tutorial
- What is Database Management System (DBMS)?
- Components of DBMS
- Applications of DBMS
- Three Schema DBMS Architecture
- Difference between DBMS and RDBMS?
- Difference between File Oriented System and DBMS
- Types of Data Models
- DBMS Schema and Instances
- Data Independence and Data Abstraction
- Database Users and Administrator
- DBMS Languages and Interfaces
DBMS ER Model
DBMS Relational Data Model
What is DBMS?
A database-management system (DBMS) is a group of interrelated facts and a set of applications to create those data. This is a group of associated data with an implicit meaning and hence is a database. The group of data, commonly called as the database includes records relevant to an enterprise. The main objective of a DBMS is to support a method to save and retrieve database records that is both convenient and efficient.
What is RDBMS?
RDBMS stands for Relational Database Management System. RDBMS information is structured in database tables, fields, and records. Each RDBMS table includes database table rows. Each database table row contains one or more database table fields. RDBMS saves the document into a group of tables, which may be associated with general fields (database table columns).
RDBMS also supports relational operators to manipulate the record saved into the database tables. Most RDBMS utilizes SQL as a database query language.
The most famous RDBMS is MS SQL Server, DB2, Oracle, and MySQL.
DBMS vs RDBMS
|In DBMS relationship between two tables or data are maintained programmatically.||In RDBMS, the relationship between two tables or files is specified at the time of table creation.|
|DBMS does not support client/server architecture.||Most of the RDBMS supports client/server architecture.|
|DBMS does not support distributed databases.||Most of the RDBMS support distributed databases.|
|In DBMS, there is no close security of information.||In RDBMS, there are various levels of security.
|Each table is given an extension in DBMS.||Many tables are grouped into one database in RDBMS.|
|DBMS may satisfies less than 7 to 8 Codd’s rules.||RDBMS usually satisfies more than 7 to 8 Codd’s rules.|
|The speed of the function is very slow.||The speed of the function is very fast.|
|DOS Platform is used||Platforms used can be any DOS, UNIX, VAX, VMS, etc.|
|Normalization is not available in DBMS.||Normalization is available in RDBMS.|
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