mysql> drop database test;
Query OK, 1 row affected (0.10 sec)
mysql> create database test;
Query OK, 1 row affected (0.00 sec)
mysql> use test;
Database changed
mysql> create table t(price decimal(16,2));
Query OK, 0 rows affected (0.16 sec)
mysql> insert into t values('2004.74');
Query OK, 1 row affected (0.03 sec)
mysql> select * from t;
+---------+
| price |
+---------+
| 2004.74 |
+---------+
1 row in set (0.00 sec)
mysql> update t set price = price + '0.09';
Query OK, 1 row affected (0.05 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> update t set price = price + '0.09';
Query OK, 1 row affected, 1 warning (0.03 sec)
Rows matched: 1 Changed: 1 Warnings: 1
mysql> show warnings;
+-------+------+--------------------------------------------+
| Level | Code | Message |
+-------+------+--------------------------------------------+
| Note | 1265 | Data truncated for column 'price' at row 1 |
+-------+------+--------------------------------------------+
1 row in set (0.00 sec)
mysql> select * from t;
+---------+
| price |
+---------+
| 2004.92 |
+---------+
1 row in set (0.00 sec)
decimal 컬럼에 기록이지만 경고가 발생하므로 변환하여 기록해야합니다.
update t set price = price + cast(0.091 as decimal(16,2));