MySQL FORMAT() function

FORMAT() function

MySQL FORMAT() converts a number to a format like ‘#,###,###.##’ which is rounded upto the number of decimal places specified (in the second argument) and returns the result as a string. There is no decimal point if the decimal place is defined as 0.

This function is useful in -

• Number formatting: Use it to format numerical values with decimal places and thousands separators.
• Currency display: FORMAT() can be used to format numeric values as currency amounts.

Syntax:

FORMAT (N, D)

Arguments:

MySQL Version: 8.0

Pictorial Presentation:

Example : MySQL FORMAT() function

The following MySQL statement calculates up to 3 decimal places of 12324.2573, so it returns 12,324.257.

Code:

SELECT FORMAT(12324.2573,3);

Output:

mysql> SELECT FORMAT(12324.2573,3);
+----------------------+
| FORMAT(12324.2573,3) |
+----------------------+
| 12,324.257           | 
+----------------------+
1 row in set (0.02 sec)

Example of MySQL format() function using where clause

The following statement will return those books from the book_mast table, whose prices are more than 150. The price is returned up to 4 decimal places as specified in the argument.

Code:

SELECT book_name,FORMAT(book_price,4) 
FROM book_mast
WHERE book_price>150;

Sample table: book_mast

+---------+-------------------------------------+-------------+---------+--------+--------+------------+----------+---------+------------+
| book_id | book_name                           | isbn_no     | cate_id | aut_id | pub_id | dt_of_pub  | pub_lang | no_page | book_price |
+---------+-------------------------------------+-------------+---------+--------+--------+------------+----------+---------+------------+
| BK001   | Introduction to Electrodynamics     | 0000979001  | CA001   | AUT001 | P003   | 2001-05-08 | English  |     201 |      85.00 |
| BK002   | Understanding of Steel Construction | 0000979002  | CA002   | AUT002 | P001   | 2003-07-15 | English  |     300 |     105.50 |
| BK003   | Guide to Networking                 | 0000979003  | CA003   | AUT003 | P002   | 2002-09-10 | Hindi    |     510 |     200.00 |
| BK004   | Transfer  of Heat and Mass          | 0000979004  | CA002   | AUT004 | P004   | 2004-02-16 | English  |     600 |     250.00 |
| BK005   | Conceptual Physics                  | 0000979005  | CA001   | AUT005 | P006   | 2003-07-16 | NULL     |     345 |     145.00 |
| BK006   | Fundamentals of Heat                | 0000979006  | CA001   | AUT006 | P005   | 2003-08-10 | German   |     247 |     112.00 |
| BK007   | Advanced 3d Graphics                | 0000979007  | CA003   | AUT007 | P002   | 2004-02-16 | Hindi    |     165 |      56.00 |
| BK008   | Human Anatomy                       | 0000979008  | CA005   | AUT008 | P006   | 2001-05-17 | German   |      88 |      50.50 |
| BK009   | Mental Health Nursing               | 0000979009  | CA005   | AUT009 | P007   | 2004-02-10 | English  |     350 |     145.00 |
| BK010   | Fundamentals of Thermodynamics      | 0000979010  | CA002   | AUT010 | P007   | 2002-10-14 | English  |     400 |     225.00 |
... ... ...
+---------+-------------------------------------+-------------+---------+--------+--------+------------+----------+---------+------------+

View the table

Output:

mysql> SELECT book_name,FORMAT(book_price,4) 
    -> FROM book_mast
    -> WHERE book_price>150;
+--------------------------------+----------------------+
| book_name                      | FORMAT(book_price,4) |
+--------------------------------+----------------------+
| Guide to Networking            | 200.0000             | 
| Transfer  of Heat and Mass     | 250.0000             | 
| Fundamentals of Thermodynamics | 225.0000             | 
| Concepts in Health             | 180.0000             | 
+--------------------------------+----------------------+
4 rows in set (0.05 sec)

Video Presentation:

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