Compare DBMS and RDBMS. What are integrity constraints? Discuss different types of integrity constraints. Also, discuss the SQL CRUD statements used to perform database related activities by using PYTHON and SQLLITE. Give an example code for each statement.

A Database Management System (DBMS) is a software system that provides a way to store, retrieve, and manage data. It allows users to define, create, manage, and manipulate databases. DBMS enables users to interact with databases by providing an interface that simplifies operations such as data storage, query processing, and transaction management.

An RDBMS (Relational Database Management System) is a more advanced type of DBMS where data is organized in tables, and relationships between the tables are maintained using foreign keys. The primary distinction between DBMS and RDBMS is that RDBMS enforces rules related to the relational model, which organizes data into rows and columns. Furthermore, RDBMS systems support SQL (Structured Query Language) as a standard for database interaction, while DBMS systems can use different approaches to query data.

Here are some key differences between DBMS and RDBMS:

1. Data Storage:

   • DBMS: Data is stored in files and can be in different formats such as flat files or hierarchical.

   • RDBMS: Data is stored in tables with rows and columns, and tables can be linked through relationships.

2. Normalization:

   • DBMS: Does not support normalization, leading to possible data redundancy.

   • RDBMS: Supports normalization, which eliminates data redundancy and ensures data integrity.

3. Relationships:

   • DBMS: Relationships are either not supported or are complex to implement.

   • RDBMS: Supports relationships between tables using keys (primary, foreign).

4. Data Integrity:

   • DBMS: Data integrity mechanisms are not as strict.

   • RDBMS: Enforces data integrity constraints such as entity integrity, referential integrity, and domain integrity.

5. Support for ACID Properties:

   • DBMS: May not support full ACID properties (Atomicity, Consistency, Isolation, Durability).

   • RDBMS: Fully supports ACID properties, ensuring reliable transactions.

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