What should I do? Select int as currency or convert int to currency format in MySql?

To convert int to current format, use CONCAT() with FORMAT() function from MySQL.

The syntax is as follows −

SELECT CONCAT(‘CurrencySymbol’,FORMAT(yourColumnName,valueAfterDecimal)) as AnyVariableName from yourTableName;

To understand the above syntax, let us create a table. The query to create a table −

mysql> create table AddingCurrencySymbolDemo
   −> (
   −> Amount int
   −> );
Query OK, 0 rows affected (1.50 sec)

Insert records in the table using insert command. The query is as follows −

mysql> insert into AddingCurrencySymbolDemo values(250);
Query OK, 1 row affected (0.22 sec)

mysql> insert into AddingCurrencySymbolDemo values(500);
Query OK, 1 row affected (0.22 sec)

mysql> insert into AddingCurrencySymbolDemo values(1000);
Query OK, 1 row affected (0.16 sec)

mysql> insert into AddingCurrencySymbolDemo values(750);
Query OK, 1 row affected (0.18 sec)

Display all records from the table using select statement. The query is as follows −

mysql> select *from AddingCurrencySymbolDemo;

The following is the output −

+--------+
| Amount |
+--------+
|    250 |
|    500 |
|   1000 |
|    750 |
+--------+
4 rows in set (0.00 sec)

Here is the query to convert int to currency format. The query is as follows −

mysql> select concat('$',format(Amount,0)) as AddedCurrency from AddingCurrencySymbolDemo;

The following is the output displaying current format −

+---------------+
| AddedCurrency |
+---------------+
| $250          |
| $500          |
| $1,000        |
| $750          |
+---------------+
4 rows in set (0.00 sec).