未找到存儲的MySQL函數

Question

嘗試運行此腳本時出現此錯誤。我在調用它之前創建函數，所以我不確定爲什麼它會返回它不存在的事實。

錯誤：

FUNCTION db.fn_distance_cosine does not exist[]

而且，相同的腳本罰款本地運行但我有另一臺機器上這個問題。

想法？

謝謝！

<?php 

$con = mysql_connect("localhost","username","password") or die ('Error connecting to mysql'); //remote 
$db_selected = mysql_select_db('db', $con); //remote 

if (!$db_selected) { 
    die ('Can\'t use selected database : ' . mysql_error()); 
} 

$lat = $_GET["lat"]; 
$lon = $_GET["lon"]; 
$rows = array(); 

$establishFunction = mysql_query("DROP FUNCTION IF EXISTS fn_distance_cosine; 
CREATE FUNCTION fn_distance_cosine (
    latitude_1 DOUBLE, 
    longitude_1 DOUBLE, 
    latitude_2 DOUBLE, 
    longitude_2 DOUBLE 
) 
RETURNS DOUBLE 
DETERMINISTIC 
SQL SECURITY INVOKER 
RETURN ACOS(
     SIN(RADIANS(latitude_1)) * SIN(RADIANS(latitude_2)) 
     + COS(RADIANS(latitude_1)) * COS(RADIANS(latitude_2)) 
     * COS(RADIANS(longitude_2 - longitude_1)) 
    ) * 3956.547; 
"); 

mysql_query("SET @input_lat :=" . $lat . ";"); 
mysql_query("SET @input_lon :=" . $lon . ";"); 

mysql_query("SET @max_latitude := @input_lat + DEGREES(50.0/3956.547);"); 
mysql_query("SET @min_latitude := @input_lat - DEGREES(50.0/3956.547);"); 
mysql_query("SET @max_longitude := @input_lon + DEGREES(50.0/3956.547/COS(RADIANS(@input_lat)));"); 
mysql_query("SET @min_longitude := @input_lon - DEGREES(50.0/3956.547/COS(RADIANS(@input_lat)));"); 

if($result = mysql_query("SELECT 
     *, 
     fn_distance_cosine(lat, lon, @input_lat, @input_lon) AS distance_in_miles, 
     COUNT(*) AS store_number_count 
    FROM stores 
    JOIN items_stores 
    ON stores.store_number=items_stores.store_number 
    WHERE `lat` BETWEEN @min_latitude AND @max_latitude 
     AND `lon` BETWEEN @min_longitude AND @max_longitude 
    GROUP BY stores.store_code 
    HAVING store_code_count > 1 
    ORDER BY distance_in_miles 
    LIMIT 10; 
    ")){ 
     while ($r = mysql_fetch_assoc($result)){ 
     $rows[] = $r; 
    } 
}else{ 
    //failed. 
    echo (mysql_error()); 
} 

print json_encode($rows); 

mysql_close($con); 

?> 

Answer 1

我的db用戶沒有正確的權限來存儲過程。