我在MySQL中有一个存储过程,应该更新表中的列。我跑的时候
CALL recalculate_city_ids();
从MySQL提示符中,更新正确的行数(几百个)。当我从PHP运行命令时,只更新了一行,我没有收到任何错误。
这是PHP:
$con = mysqli_connect('localhost', 'user', 'pass', 'dbname' );
$result = $con->query( 'call recalculate_city_ids()' );
mysql_close($con);
和sproc的SQL:
DROP PROCEDURE IF EXISTS recalculate_city_ids;
DELIMITER $$
CREATE PROCEDURE recalculate_city_ids()
READS SQL DATA
BEGIN
DECLARE o_id INT DEFAULT 0;
DECLARE o_latitude FLOAT;
DECLARE o_longitude FLOAT;
DECLARE done INT DEFAULT 0;
DECLARE cur_users CURSOR FOR SELECT id, latitude, longitude FROM user WHERE latitude IS NOT NULL ORDER BY fname;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done=1;
OPEN cur_users;
users: LOOP
FETCH cur_users INTO o_id, o_latitude, o_longitude;
IF done=1 THEN
LEAVE users;
END IF;
SELECT @closest_city_distance:=fn_distance_cosine(o_latitude, o_longitude, latitude, longitude) AS distance, @closest_city_id:=id AS id FROM category WHERE zone="city" AND active=1 ORDER BY distance LIMIT 1;
UPDATE user SET city_id = IF(@closest_city_distance<=30, @closest_city_id, 0) WHERE id=o_id;
END LOOP users;
CLOSE cur_users;
END
$$
我可以使用mysqli从PHP运行其他查询(也尝试过mysql对象)。我也无法从PHP创建存储过程(没有错误),也不能从MySQL提示符中创建该部分。
PHP和我的MySQL提示符使用相同的用户名。
答案 0 :(得分:0)
我认为当查询返回多个结果集时,PHP不喜欢它。我真的不需要返回任何东西,因为这只是一个荣耀的UPDATE
陈述,所以我改变了我的
SELECT @closest_city_distance:=fn_distance_cosine...
查询
SELECT fn_distance_cosine(o_latitude, o_longitude, latitude, longitude) as distance,id into closest_city_distance, closest_city_id FROM category WHERE zone="city" AND active=1 ORDER BY distance LIMIT 1;
由于这是返回结果集的唯一位置,因此删除返回的集会解决问题。