insert ...在选择错误中选择除运算符？

Question

创建表，如果不是XY（      x INT NOT NULL，      y FLOAT NULL，     主要关键（x）     ）

INSERT INTO XY (x,y)
(select 1 as x ,(1/7) as y);

错误

Error code 1064, SQL state 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 'INSERT INTO XY (x,y)
(select 1 as x ,(1/7) as y)' at line 7
Line 1, column 1

任何想法？

Answer 1

您应该在CREATE TABLE语句之后（或INSERT语句之前）添加; 。您正在尝试执行2个不带分隔符的不同查询。

CREATE TABLE IF NOT EXISTS XY (
x INT NOT NULL ,
y FLOAT NULL ,
PRIMARY KEY(x)
);  # !!! Originally, you missed ;

INSERT INTO XY (x,y)
(select 1 as x ,(1/7) as y);

Answer 2

你需要围绕select语句的括号

INSERT INTO XY (x,y)
select 1 as x ,(1/7) as y;