MySQL Data Types | asadmukhtar.info

MySQL Data Types | asadmukhtar.info

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1. Numeric Data Types

INT: Used to store integer values.
DECIMAL: Used for exact numeric values with a fixed number of decimal places.

2. String Data Types

VARCHAR: Used to store variable-length strings.
TEXT: Used to store long text strings.

3. Date and Time Data Types

DATE: Used to store dates (YYYY-MM-DD).
DATETIME: Stores both date and time (YYYY-MM-DD HH:MM:SS).

4. Example: Using Data Types in a Table

To demonstrate how data types work in MySQL, here's an example of creating a products table with various data types:

CREATE TABLE products (
    product_id INT AUTO_INCREMENT PRIMARY KEY,
    product_name VARCHAR(100),
    price DECIMAL(10, 2),
    release_date DATE
);

In this example:

product_id is of type INT to store integer values.
product_name is of type VARCHAR to store variable-length strings.
price is of type DECIMAL(10, 2) to store precise monetary values with two decimal places.
release_date is of type DATE to store the product's release date

Conclusion

Choosing the right data type for each column is crucial for optimizing storage and ensuring data integrity. By understanding the different MySQL data types, you can define your tables more effectively and manage data in a way that supports your application's needs.