DATE_PART in MySQL

Introduction

DATE_PART is a built-in function in MySQL that allows programmers to extract specific parts of a date or time value. It returns the specified part of a date or time as a number.

Syntax

The syntax of the DATE_PART function is as follows:

DATE_PART(part, date)

• part: Specifies the part of the date or time to extract. It can be one of the following values:
  • 'YEAR': Extracts the year from the date or time.
  • 'MONTH': Extracts the month from the date or time.
  • 'DAY': Extracts the day from the date or time.
  • 'HOUR': Extracts the hour from the date or time.
  • 'MINUTE': Extracts the minute from the date or time.
  • 'SECOND': Extracts the second from the date or time.
• date: Specifies the date or time value from which to extract the specified part.

Example

Let's see some examples of using the DATE_PART function:

1. Extracting the year from a date:

SELECT DATE_PART('YEAR', '2022-01-31');

Output:

2022

2. Extracting the month from a date:

SELECT DATE_PART('MONTH', '2022-01-31');

Output:

1

3. Extracting the day from a date:

SELECT DATE_PART('DAY', '2022-01-31');

Output:

31

4. Extracting the hour from a time:

SELECT DATE_PART('HOUR', '12:45:23');

Output:

12

5. Extracting the minute from a time:

SELECT DATE_PART('MINUTE', '12:45:23');

Output:

45

6. Extracting the second from a time:

SELECT DATE_PART('SECOND', '12:45:23');

Output:

23

Conclusion

In conclusion, the DATE_PART function in MySQL is useful for extracting specific parts of dates or times. It provides flexibility in retrieving desired information from a given date or time value.