尝试将三个表连接在一起并获得语法错误

Question

我正在尝试编写一个将三个表连接在一起的postgres查询。我相信我有一切正确，但当我运行查询时，我得到一个语法错误：

select
cwd_user.id,
cwd_user.user_name username,
cwd_user.email_address emailaddress,
cwd_user.active active
cwd_user.created_date created
cwd_membership.child_id 
cwd_membership.parent_name groupname
licenserolesgroup.id
licenserolesgroup.license_role_name application
from
cwd_user
inner join cwd_membership on cwd_membership.child_id = cwd_user.id
inner join licenserolesgroup on cwd_membership.child_id =         licenserolesgroup.id;

查询应该能够输出：

• 用户ID
• 的userName
• EMAILADDRESS
• 活性
• createdDate
• childID（用于匹配组表）
• 组名
• licenseID
• 应用

对此有任何帮助将不胜感激。加入时我没有做太多。我猜是试着火！

Answer 1

你错过了一堆尾随逗号。请尝试改为：

select
cwd_user.id,
cwd_user.user_name username,
cwd_user.email_address emailaddress,
cwd_user.active active,
cwd_user.created_date created,
cwd_membership.child_id,
cwd_membership.parent_name groupname,
licenserolesgroup.id,
licenserolesgroup.license_role_name application
from
cwd_user
inner join cwd_membership on cwd_membership.child_id = cwd_user.id
inner join licenserolesgroup on cwd_membership.child_id = licenserolesgroup.id;

Answer 2

我在帖子中没有看到任何错误消息。我认为这是因为缺少＆＃39;，＆＃39;每个字段末尾的（逗号）字符？

select
cwd_user.id,
cwd_user.user_name username,
cwd_user.email_address emailaddress,
cwd_user.active active,
cwd_user.created_date created,
cwd_membership.child_id, 
cwd_membership.parent_name groupname,
licenserolesgroup.id,
licenserolesgroup.license_role_name application
from
cwd_user
inner join cwd_membership on cwd_membership.child_id = cwd_user.id
inner join licenserolesgroup on cwd_membership.child_id = licenserolesgroup.id;