Description Paragraph
This article aims to provide a comprehensive guide on CRUD operations, focusing on the key concepts and practical tasks involved in working with databases using REST APIs. The article will cover the fundamental aspects of CREATE, READ, UPDATE, and DELETE operations, along with step-by-step instructions and hands-on tasks for the readers to apply the concepts discussed.
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Key Concepts Explanation
In this section, we will delve into the essential concepts related to CRUD operations, breaking down each operation with code examples.
CREATE
The CREATE operation involves inserting new data into the database. Here is an example of inserting a new record using SQL:
INSERT INTO table_name (column1, column2, column3) VALUES (value1, value2, value3);
READ
The READ operation is used to retrieve data from the database. Here is an example of a simple SELECT query in SQL:
SELECT * FROM table_name;
UPDATE
The UPDATE operation is used to modify existing data in the database. Here is an example of updating a record based on a specific condition in SQL:
UPDATE table_name SET column1 = new_value WHERE condition;
DELETE
The DELETE operation is used to remove data from the database. Here is an example of deleting a record based on a specific condition in SQL:
DELETE FROM table_name WHERE condition;
Hands-On Tasks
In this section, we will provide hands-on tasks for the readers to practice CRUD operations using REST APIs:
- Create a new record in the database using a POST request.
- Retrieve and display all records from the database using a GET request.
- Update an existing record in the database using a PUT request.
- Delete a specific record from the database using a DELETE request.
Conclusion
To sum up, this article has covered the key concepts and practical aspects of CRUD operations, essential for database management and application development. We encourage the readers to practice these operations using REST APIs and engage with the community for further learning.
CRUD Operations
Let us get an overview of CRUD Operations. They are nothing but DML and queries to read the data while performing database operations.
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CRUD is widely used from an application development perspective.
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C - CREATE (INSERT)
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R - READ (READ)
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U - UPDATE (UPDATE)
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D - DELETE (DELETE)
As part of the application development process, we perform CRUD Operations using REST APIs.