DBMS Concepts

DBMS Tutorial Components of DBMS. Applications of DBMS The difference between file system and DBMS. Types of DBMS DBMS Architecture DBMS Schema Three Schema Architecture. DBMS Languages.

DBMS ER Model

ER model: Entity Relationship Diagram (ERD) Components of ER Model. DBMS Generalization, Specialization and Aggregation.

DBMS Relational Model

Codd’s rule of DBMS Relational DBMS concepts Relational Integrity Constraints DBMS keys Convert ER model into Relational model Difference between DBMS and RDBMS Relational Algebra DBMS Joins

DBMS Normalization

Functional Dependency Inference Rules Multivalued Dependency Normalization in DBMS: 1NF, 2NF, 3NF, BCNF and 4NF

DBMS Transaction

What is Transaction? States of transaction ACID Properties in DBMS Concurrent execution and its problems DBMS schedule DBMS Serializability Conflict Serializability View Serializability Deadlock in DBMS Concurrency control Protocols

Difference

Difference between DFD and ERD

Misc

Advantages of DBMS Disadvantages of DBMS Data Models in DBMS Relational Algebra in DBMS Cardinality in DBMS Entity in DBMS Attributes in DBMS Data Independence in DBMS Primary Key in DBMS Foreign Key in DBMS Candidate Key in DBMS Super Key in DBMS Aggregation in DBMS Hashing in DBMS Generalization in DBMS Specialization in DBMS View in DBMS File Organization in DBMS What Is A Cloud Database What Is A Database Levels Of Locking In DBMS What is RDBMS Fragmentation in Distributed DBMS What is Advanced Database Management System Data Abstraction in DBMS Checkpoint In DBMS B Tree in DBMS BCNF in DBMS Advantages of Threaded Binary Tree in DBMS Advantages of Database Management System in DBMS Enforcing Integrity Constraints in DBMS B-Tree Insertion in DBMS B+ Tree in DBMS Advantages of B-Tree in DBMS Types of Data Abstraction in DBMS Levels of Abstraction in DBMS 3- Tier Architecture in DBMS Anomalies in Database Management System Atomicity in Database Management System Characteristics of DBMS DBMS Examples Difference between Relational and Non-Relational Databases Domain Constraints in DBMS Entity and Entity set in DBMS ER Diagram for Banking System in DBMS ER Diagram for Company Database in DBMS ER Diagram for School Management System in DBMS ER Diagram for Student Management System in DBMS ER Diagram for University Database in DBMS ER Diagram of Company Database in DBMS Er Diagram Symbols and Notations in DBMS How to draw ER-Diagram in DBMS Integrity Constraints in DBMS Red-Black Tree Deletion in DBMS Red-Black Tree Properties in DBMS Red-Black Tree Visualization in DBMS Redundancy in Database Management System Secondary Key in DBMS Structure of DBMS 2-Tier Architecture in DBMS Advantages and Disadvantages of Binary Search Tree Closure of Functional Dependency in DBMS Consistency in Database Management System Durability in Database Management System ER Diagram for Bank Management System in DBMS ER Diagram for College Management System in DBMS ER Diagram for Hotel Management System in DBMS ER Diagram for Online Shopping ER Diagram for Railway Reservation System ER Diagram for Student Management System in DBMS Isolation in DBMS Lossless Join and Dependency Preserving Decomposition in DBMS Non-Key Attributes in DBMS Data Security Requirements in DBMS DBMS functions and Components What is Homogeneous Database? DBMS Functions and Components Advantages and Disadvantages of Distributed Database Relational Database Schema in DBMS Relational Schema Transaction Processing in DBMS Discriminator in DBMS

Disadvantages of DBMS

Disadvantages of DBMS

With the vast list of advantages, there are some following disadvantages or limitations of the database management system.

1. High Cost

The high cost of software and hardware is the main disadvantage of the database management system.

Database users require a high-speed processor and huge memory size to use the database on the DBMS. Sometimes, users require costly machines for maintaining databases.

Organizations need a trained and highly paid technical database administrator for using and maintaining the large database systems. 

2. Huge Size

The size of the database is not big at the initial state, but when the user stores a large amount of data, then it creates many problems. Due to the huge data, database systems do not provide good results and do not run efficiently. That's why the size is another limitation of the database systems.

3. Database Failure

In the database systems, all the data or information of an organization is stored in one centralized database. If the database of that organization fails, then the data is lost, and the organization will collapse. So, database failure is a big problem with the database management system.    

4. Complexity

Database management system (DBMS) is so complex for non-technical users. So, it isn't easy to manage and maintain database systems. Therefore, training for the designers, users, and administrators is necessary to efficiently run the database systems.

5. Increased Staff Cost

DBMS requires an educated and skilled staff for managing and maintaining the databases. So, we need to spend a lot of money to get this level of trained and experienced staff.

6. Requirement of Technical Staff

A non-technical people can't understand the complexity of the database. So, the technical staff is required for maintaining and handling the database management system.

7. Cost of Data Conversion

It is one of the big disadvantages of the database management system because the cost of data conversion is very high. There is a requirement for trained, skilled, and experienced database administrators for converting the data smoothly.

8. Performance

Performance is another big disadvantage of database systems because the speed of the database systems for small firms and organizations is very slow. Hence, the performance of the database systems in small organizations is poor.