sql - Why error 'invalid object name' if tables are from same server different databases? -


with query below i'm trying join both tables :

select       a1.member_account,     substring(substring(a1.member_name, charindex('/', a1.member_name)  + 1, len(a1.member_name)), 0, charindex(' ', substring(a1.member_name, charindex('/', a1.member_name) + 1, len(a1.member_name)))) firstname,      substring(a1.member_name, 0, charindex('/', a1.member_name)) lastname,     a2.account, a2.priormonthrewardamount,     a2.currentmonthrewardamount, a2.rewarddate, a2.redemptionamount,      a2.redemptiondate, a1.member_email,      a1.member_rest_flag11, a1.member_rest_flag12      [nfcudw].[dbo].[member] a1 left join      [ims].[dbo].[rewardshistory] a2 on a2.account = a1.member_account  order      datepart(year, a2.rewarddate) desc,     datepart(month, a2.rewarddate) desc

these 2 tables in same server different databases , i'm trying join them.

i error:

msg 208, level 16, state 1, line 1
invalid object name 'ims.dbo.rewardshistory'.

i have access both tables, don't understand why error.

what tried @ first join these 2 queries:

select      *       rewardshistory      priormonthrewardamount > 0 order      datepart(year, rewarddate) desc,     datepart(month, rewarddate) desc   select       member_account,     substring(substring(member_name, charindex('/', member_name) + 1, len(member_name)), 0, charindex(' ', substring(member_name, charindex('/', member_name) + 1, len(member_name)))) firstname,      substring(member_name, 0, charindex('/', member_name)) lastname,     member_email, member_rest_flag11, member_rest_flag12      member

i totally wrong here, shot in dark, part of query declare alias 

as lastname,a2.account, a2.priormonthrewardamount,    a2.currentmonthrewardamount,a2.rewarddate,a2.redemptionamount,a2.redemptiondate,    a1.member_email,a1.member_rest_flag11,a1.member_rest_flag12

seems cause problems. looks confusing, aren't alias supposed single term or quoted string? you've included whole list.


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