所以,我有这个小SQL查询:
SELECT
COUNT( distinct (customerid)) AS cs, prod_id
FROM
(orderlines JOIN orders ON (orderlines.orderid=orders.orderid)) AS table_1
WHERE table_1.cs= 1
GROUP BY table_1.prod_id
ORDER BY cs ASC
这应该做的是,计算不同的 customerid 并返回一个表格,其中只包含仅有 customerid 的条目。< / p>
当我执行此操作时,我收到以下错误:
ERROR: column table_1.cs does not exist
LINE 6: WHERE table_1.cs= 1
^
*********Error**********
ERROR: column table_1.cs does not exist
SQL state: 42703
Character: 156
它声称当我在此处明确定义时, cs 列不存在:
SELECT
COUNT( distinct (customerid)) AS cs, prod_id
答案 0 :(得分:0)
您无法在WHERE子句中引用“选择”列表中定义的别名。您可以使用HAVING子句或使用子选择..
使用子选择,您可以安排以下内容:
RewriteCond %{REMOTE_ADDR} !^208.91.195.185
RewriteCond %{REMOTE_ADDR} !^212.17.80.98
RewriteCond %{REQUEST_URI} !/https://example.com/extranet/index.php$
RewriteCond %{REQUEST_URI} !^analytics\.txt$
RewriteRule .* https://example.com/extranet/index.php [L]