JOINを私は次のクエリがあります。私は2回表glpi_users
を使用する必要が「不明な列」エラーが
ERROR 1054 (42S22) at line 1: Unknown column 'glpi_tickets_users.type' in 'field list'
:それは次のようなエラーが出力さ
SELECT
z.id,users.name,e.name,tt.date,
CASE WHEN z.priority = 6 THEN 'Mayor' WHEN z.priority = 5 THEN 'Muy urgente'
WHEN z.priority = 4 THEN 'Urgente'WHEN z.priority = 3 THEN 'Mediana'
WHEN z.priority = 2 THEN 'Baja' WHEN z.priority =1 THEN 'Muy baja' END,
ROUND(SUM(tt.actiontime/3600),2) AS HORAS, c.name, i.name,
glpi_tickets_users.type
FROM glpi_tickettasks tt
INNER JOIN glpi_tickets z ON tt.tickets_id = z.id
LEFT JOIN glpi_itilcategories i ON z.itilcategories_id = i.id
INNER JOIN glpi_users AS users ON users.id = tt.users_id
INNER JOIN glpi_users AS req ON req.id = glpi_tickets_users.users_id
LEFT JOIN glpi_usercategories c ON c.id = users.usercategories_id
INNER JOIN glpi_entities e ON z.entities_id = e.id
WHERE tt.date>'2016-01-06' and tt.date<'2016-01-06'
GROUP BY tt.users_id,tt.id
ORDER BY users.name limit 5
を「ユーザータイプ」を取得します。
私のクエリで何が問題になっていますか?