錯誤的參數數量SQL MSACCESS

Question

運行以下查詢時出現錯誤，指示錯誤的參數數量：

SELECT
population_postcodes.*, 
target_postcodes.*, 
SQR( EXP(population_postcodes.longitude- target_postcodes.longitude, 2) + EXP(population_postcodes.latitude-target_postcodes.latitude, 2) ) as distance
FROM population_postcodes INNER JOIN target_postcodes on Population_postcodes.Population_postcode = Target_postcodes.Target_postcode;

有人可以建議我如何解決此問題嗎？

我還嘗試了以下代碼：

SELECT Population_postcodes.*, Target_postcodes.* 

FROM population_postcodes
INNER JOIN target_postcodes
ON Population_postcodes.Population_postcode = Target_postcodes.Target_postcode
SQR( (population_postcodes.longitude- target_postcodes.longitude)^2 + (population_postcodes.latitude-target_postcodes.latitude)^2 ) as distance;

這段代碼：

     SELECT Population_postcodes.*, Target_postcodes.*, SQR( (population_postcodes.longitude- target_postcodes.longitude)^2 + (population_postcodes.latitude-target_postcodes.latitude)^2 ) as distance
FROM population_postcodes
INNER JOIN target_postcodes
ON Population_postcodes.Population_postcode = Target_postcodes.Target_postcode;

Answer 1

Exp需要一個參數，您需要兩個。

舊版： EXP(population_postcodes.longitude- target_postcodes.longitude, 2)

新增內容： (population_postcodes.longitude- target_postcodes.longitude)*(population_postcodes.longitude- target_postcodes.longitude)

Answer 2

嘗試更換...

EXP(<expression>, 2)

...至...

<expression>^2

在Access中，EXP函數將e（自然對數的底數）返回為冪。 要將表達式提升為冪，請使用^運算符。

根據您的情況，請小心在表達式兩邊加上方括號，例如...

(population_postcodes.longitude- target_postcodes.longitude)^2

...強制使用最后的電源。 默認情況下，^運算符在-運算符之前進行求值。