正确转义/格式化MySQL查询

Question

$query = "  SELECT *
            FROM Catalog
            INTO OUTFILE './catalog.csv'
            OPTIONALLY ENCLOSED BY '\"'
            FIELDS TERMINATED BY ','
            LINES TERMINATED BY '\r\n'";

我得到的错误是OPTIONALLY ENCLOSED BY '\"'

存在问题

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 'OPTIONALLY ENCLOSED BY '"'

我在过去一小时内尝试了很多不同的变体，例如在查询周围使用单引号然后修改查询中的转义/引用，但我无法提供正确的格式。

Answer 1

需要将FIELDS TERMINATED BY ','部分放在OPTIONALLY ENCLOSED BY '\"'之前。

$query = "  SELECT *
            FROM Catalog
            INTO OUTFILE './catalog.csv'
            FIELDS TERMINATED BY ','
            OPTIONALLY ENCLOSED BY '\"'
            LINES TERMINATED BY '\r\n'";

Answer 2

您的查询不对。应该是：

 "SELECT *
        FROM Catalog
        INTO OUTFILE '.\/catalog.csv'
         FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '\"'           
        LINES TERMINATED BY '\r\n'";