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SELECT a FLOAT with given precision in MySQL
You can use ROUND() function.
The syntax is as follows
SELECT ROUND(yourColumnName,yourPrecisionIntegerValue) from yourTableName;
To understand the concept, let us create a table. The query to create a table is as follows
mysql> create table givenPrecisionDemo -> ( -> Amount float -> ); Query OK, 0 rows affected (0.61 sec)
Insert some records in the table using insert command. The query is as follows −
mysql> insert into givenPrecisionDemo(Amount) values(45.678); Query OK, 1 row affected (0.12 sec) mysql> insert into givenPrecisionDemo(Amount) values(123.456); Query OK, 1 row affected (0.15 sec) mysql> insert into givenPrecisionDemo(Amount) values(245.890); Query OK, 1 row affected (0.20 sec) mysql> insert into givenPrecisionDemo(Amount) values(980.678); Query OK, 1 row affected (0.19 sec)
Display all records from the table using select statement. The query is as follows −
mysql> select *from givenPrecisionDemo;
The following is the output
+---------+ | Amount | +---------+ | 45.678 | | 123.456 | | 245.89 | | 980.678 | +---------+ 4 rows in set (0.00 sec)
Here is the query to SELECT a FLOAT with given precision
mysql> SELECT ROUND(Amount,2) from givenPrecisionDemo;
The following is the output
+-----------------+ | ROUND(Amount,2) | +-----------------+ | 45.68 | | 123.46 | | 245.89 | | 980.68 | +-----------------+ 4 rows in set (0.00 sec)
Updated on: 30-Jul-2019
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