SQL语法错误＃1064

Question

我想运行这个sql语句，但我得到一个错误，是什么问题？我有一个名为'zips'的表格来获取所有符合条件的数据，我想要做的是铸造LAT，LONG从zips表格，它们是varchar类型。

SELECT * FROM zips 
     WHERE (
       CAST(LAT AS FLOAT) <= 41.009707145195 
       AND CAST(LAT AS FLOAT) >= 40.286092854805 
       AND CAST(LONG AS FLOAT) <= -73.307544588345 
       AND CAST(LONG AS FLOAT) >= -74.266455411655) 
       AND (
        CAST(LAT AS FLOAT) != 40.6479 
        AND CAST(LONG AS FLOAT) != -73.787 
        ) 
       ) 

，误差

#1064 - 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 'FLOAT) <= 41.009707145195 AND CAST(LAT AS FLOAT) >= 
40.286092854805 AND CAST(LON' at line 1 

Answer 1

试试这个：

SELECT * FROM zips 
WHERE (
     CAST(LAT AS DECIMAL(10,6)) <= 41.009707145195 
     AND CAST(LAT AS DECIMAL(10,6)) >= 40.286092854805 
     AND CAST(`LONG` AS DECIMAL(10,6)) <= -73.307544588345 
     AND CAST(`LONG` AS DECIMAL(10,6)) >= -74.266455411655 
    ) 
     AND 
    (
     CAST(LAT AS DECIMAL(10,6)) != 40.6479 
     AND CAST(`LONG` AS DECIMAL(10,6)) != -73.787 
    ) 

LONG是保留关键字，以便把那里面的backquotes。