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you can do this<br />
<br />
select workstations.w_id, workstations.w_name, workstations.w_clientversi<wbr />on,<br />
case workstations.w_clientversi<wbr />on when 1 then (select max(s_started) from [stats])<br />
&nbsp; &nbsp; &nbsp;else (select max(s_started) from [statindex]) end as latestdate<br />
from workstations<br />

</div>


you can do this

select workstations.w_id, workstations.w_name, workstations.w_clientversion,
case workstations.w_clientversion when 1 then (select max(s_started) from [stats])
     else (select max(s_started) from [statindex]) end as latestdate
from workstations


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thank's for answers.<br />
<br />
Both works fine
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<div class="content wysiwyg-content">
My purpose is select w_id and w_name -fields from workstations table<br />
and the latest date (s_started) from stat -table if workstations.w_clientversi<wbr />on=1 or statindex-table<br />
if workstations.w_clientversi<wbr />on = 3.<br />
Both tables (stat and statindex) have same structure.<br />
<br />
I tried to run following select-clause :<br />
<br />
select workstations.w_id,workstat<wbr />ions.w_nam<wbr />e,workstat<wbr />ions.w_cli<wbr />entversion<wbr />,<br />
(select max(s_started) from (<br />
case workstations.w_clientversi<wbr />on<br />
when 1 then [stats] else [statindex] end)) as latestdate<br />
from workstations<br />
<br />
but i got an following error message: <br />
'Msg 156, Level 15, State 1, Line 2<br />
Incorrect syntax near the keyword 'case'.'<br />
<br />
Is it anyhow possible to constitute conditional from -clause using case when structure?
</div>
</div>


My purpose is select w_id and w_name -fields from workstations table
and the latest date (s_started) from stat -table if workstations.w_clientversion=1 or statindex-table
if workstations.w_clientversion = 3.
Both tables (stat and statindex) have same structure.

I tried to run following select-clause :

select workstations.w_id,workstations.w_name,workstations.w_clientversion,
(select max(s_started) from (
case workstations.w_clientversion
when 1 then [stats] else [statindex] end)) as latestdate
from workstations

but i got an following error message: 
'Msg 156, Level 15, State 1, Line 2
Incorrect syntax near the keyword 'case'.'

Is it anyhow possible to constitute conditional from -clause using case when structure?

conditional From statemetn

Microsoft SQL Server 2005 is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning. It includes support for managing XML data and allows a database server to be exposed over web services using Tabular Data Stream (TDS) packets encapsulated within SOAP (protocol) requests.