我创建一张桌子

create table if not exists gbpExchangeRates (
    date date
    , to_currency char(3)
    , rate float
    , index idx (date, to_currency)
);


然后添加然后尝试插入数据

INSERT INTO gbpExchangeRates ('date', 'to_currency', 'rate') VALUES ('2018-01-22', 'CAD', 1.7253437447) ;


但是我收到以下错误

SQL Error [1064] [42000]: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''date', 'to_currency', 'rate') VALUES ('2018-01-22', 'CAD', 1.7253437447)' at line 1


我尝试了以下操作,但仍收到错误消息:


ALTER TABLE gbpExchangeRates MODIFY to_currency char(10);
ALTER TABLE gbpExchangeRates MODIFY to_currency varchar(10);
ALTER TABLE gbpExchangeRates MODIFY rate double;
ALTER TABLE gbpExchangeRates MODIFY to_currency varchar(10);
INSERT INTO gbpExchangeRates ('date', 'to_currency', 'rate') VALUES ('2018-01-22', 'CAD', 1.72) ;
和变化


我的表和/或插入语句有什么问题?

最佳答案

INSERT INTO gbpExchangeRates (date, to_currency, rate) VALUES ('2018-01-22', 'CAD', 1.7253437447) ;


您不需要引号将字段插入

10-02 13:03