[rdbms] What is the difference between DBMS and RDBMS?

After reading some answers on different websites I am confused now. So, it would be helpful to mention the key difference between DBMS and RDBMS and any relation between them.

Every RDBMS is a DBMS, but the opposite is not true: RDBMS is a DBMS which is based on the relational model, but not every DBMS must be relational.

However, since RDBMS are most common, sometimes the term DBMS is used to denote a DBMS which is NOT relational. It depends on the context.

From Wikipedia,

A database management system (DBMS) is a computer software application that interacts with the user, other applications, and the database itself to capture and analyze data. A general-purpose DBMS is designed to allow the definition, creation, querying, update, and administration of databases.

There are different types of DBMS products: relational, network and hierarchical. The most widely commonly used type of DBMS today is the Relational Database Management Systems (RDBMS)

DBMS:

• A DBMS is a storage area that persist the data in files.
• There are limitations to store records in a single database file.
• DBMS allows the relations to be established between 2 files.
• Data is stored in flat files with metadata.
• DBMS does not support client / server architecture.
• DBMS does not follow normalization. Only single user can access the data.
• DBMS does not impose integrity constraints.
• ACID properties of database must be implemented by the user or the developer

RDBMS:

• RDBMS stores the data in tabular form.
• It has additional condition for supporting tabular structure or data that enforces relationships among tables.
• RDBMS supports client/server architecture.
• RDBMS follows normalization.
• RDBMS allows simultaneous access of users to data tables.
• RDBMS imposes integrity constraints.
• ACID properties of the database are defined in the integrity constraints.

Have a look at this article for more details.

DBMS : Data Base Management System ..... for storage of data and efficient retrieval of data. Eg: Foxpro

1)A DBMS has to be persistent (it should be accessible when the program created the data donot exist or even the application that created the data restarted).

2) DBMS has to provide some uniform methods independent of a specific application for accessing the information that is stored.

3)DBMS does not impose any constraints or security with regard to data manipulation. It is user or the programmer responsibility to ensure the ACID PROPERTY of the database

4)In DBMS Normalization process will not be present

5)In dbms no relationship concept

6)It supports Single User only

7)It treats Data as Files internally

8)It supports 3 rules of E.F.CODD out off 12 rules

9)It requires low Software and Hardware Requirements.

FoxPro, IMS are Examples

RDBMS: Relational Data Base Management System

.....the database which is used by relations(tables) to acquire information retrieval Eg: oracle, SQL..,

1)RDBMS is based on relational model, in which data is represented in the form of relations, with enforced relationships between the tables.

2)RDBMS defines the integrity constraint for the purpose of holding ACID PROPERTY.

3)In RDBMS, normalization process will be present to check the database table cosistency

4)RDBMS helps in recovery of the database in case of loss of data

5)It is used to establish the relationship concept between two database objects, i.e, tables

6)It supports multiple users

7)It treats data as Tables internally

8)It supports minimum 6 rules of E.F.CODD

9)It requires High software and hardware

DBMS stands for "Database Management Systems" it includes all Databases. RDBMS are a special Type of DMBS . R in RDBMS implies that the database uses the Relational model. a collection of related tables in the relational model makes up a database.DBMS is used for simple and small application while RDBMS is used for applications with a huge database.DBMS are for smaller organizations where security is not concerned(i.e. DBMS does not impose any constraints) while RDBMS is quitely opposite( RDBMS define the integrity constraint for the purpose of holding ACID PROPERTY).

DBMS is the software program that is used to manage all the database that are stored on the network or system hard disk. whereas RDBMS is the database system in which the relationship among different tables are maintained.

DBMS: is a software system that allows Defining, Creation, Querying, Update, and Administration of data stored in data files.

Features:

• Normal book keeping system, Flat files, MS Excel, FoxPRO, XML, etc.
• Less or No provision for: Constraints, Security, ACID rules, users, etc.

RDBMS: is a DBMS that is based on Relational model that stores data in tabular form.

• SQL Server, Sybase, Oracle, MySQL, IBM DB2, MS Access, etc.

Features:

• Database, with Tables having relations maintained by FK
• DDL, DML
• Data Integrity & ACID rules
• Multiple User Access
• Backup & Restore
• Database Administration

A DBMS is used for storage of data in files. In DBMS relationships can be established between two files. Data is stored in flat files with metadata whereas RDBMS stores the data in tabular form with additional condition of data that enforces relationships among the tables. Unlike RDBMS, DBMS does not support client server architecture. RDBMS imposes integrity constraints and also follows normalization which is not supported in DBMS.

There are other database systems, such as document stores, key value stores, columnar stores, object oriented databases. These are databases too but they are not based on relations (relational theory) ie they are not relational database systems.

So there are lot of differences. Database management system is the name for all databases.