Join in SQL SERVER 2012

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Hello

I have two table as A,B .Table A holds my category names and table B holds
my fk_tbl_A ,time ,machine name.

I want to calculate the time ,which I have used for each machine and grouped by fk_abl_A
I wrote the below code in SQL 2012:

SQL

select sum(cast(a.during_time as int)) from dbo.sabt_bazdid as a
join dbo.ability as b
on a.fk_operator_ability = b.id
Group by a.fk_operator_ability

The code working well here but when I want to show the names of the category in table A ,
Sql shows error.

SQL

select b.name , sum(cast(a.during_time as int)) from dbo.sabt_bazdid as a
join dbo.ability as b
on a.fk_operator_ability = b.id
Group by a.fk_operator_ability

Please help me to solve problem
Thanks.

Posted 26-Jan-14 3:42am

sorosh04

Updated 26-Jan-14 7:55am

Mike Meinz

v2

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Comments

Peter Leow 26-Jan-14 10:00am

Not clear. Can you show full schema of tables A and B.

sorosh04 26-Jan-14 10:17am

Table B :
[em_number]
,[fk_applier_id]
,[fk_ability_id]
,[fk_machine_id]
,[start_date]
,[start_time]
,[end_date]
,[end_time]
,[during_time]
,[fault_reason]
,[result]
,[description]

Table A:
[id]
,[description]
,[category_id]
,[name]

sorosh04 26-Jan-14 10:18am

I want to calculate the during_time from tbl B for each name from tble A and group by fk_ability_id

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Peter Leow · Answer 1 · 2014-01-26T04:51:00

Solution 1

You would have encountered error like this:

Column 'b.name' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause

Try change this:

Group by a.fk_operator_ability

to

Group by a.fk_operator_ability, b.name

Hope it helps.

Posted 26-Jan-14 4:51am

Peter Leow

Updated 26-Jan-14 4:54am

v3