How would it look like if I wanted to do it on SQL Server? I know I posted VFP syntax - but want to try it in SQL Server now.....


>You can use derived tables, e.g.
>
>

>
>SELECT cust.Customer_id, cust.Customer_name, v.visit_date,;
>v.location_id, v.Visits_id;
>FROM ;
>hpmg!Customer cust ;
>INNER JOIN hpmg!Visits v ;
>ON cust.Customer_id = v.Customer_id;
>inner join (select Customer_id, visit_date, location_id ;
>from  hpmg!Visits ;
>WHERE visit_date between  ?StartOfTheYear and ?EndOfTheYear ;
>GROUP BY Customer_id, visit_date, location_id ;
>HAVING COUNT(*) > 1 ) as MultipleVisits ON v.Customer_id = MultipleVisits.Customer_ID ;
>AND v.visit_date = MultipleVisits.visit_date and v.Location_id = MultipleVisits.Location_id;
>WHERE v.visit_date between  ?StartOfTheYear and ?EndOfTheYear 
>
>

>
>I also suggest to use date column as is if you have index on date column and not on year(date) (In the latter case use your original where).
>
>>I think I'm doing something dumb here - 3 select statements but seems like there should be a way to do this in just one????
>>
>>First table: Customer
>>customer_id
>>customer_name
>>
>>Second table: Visits
>>visits_id
>>customer_id
>>visit_date
>>location_id
>>
>>...what I want is customer_id, customer_name, visit_id, visit_date and location_id for all location_id's where a customer visited more than once on the same day for a particular year.
>>This is what I'm doing now - but like I said, seems like there should be a better way.
>>----------------------------------------------------------
>>
>>

>>SELECT Customer.Customer_id, Customer.Customer_name, Visits.visit_date,;
>>  Visits.location_id, Visits.Visits_id, 0 AS vcount;
>> FROM ;
>>     hpmg!Customer ;
>>    LEFT OUTER JOIN hpmg!Visits ;
>>   ON  Customer.Customer_id = Visits.Customer_id;
>> WHERE  YEAR(Visits.visit_date) = ( ?lnYear) INTO CURSOR curHold_1
>>

>>
>>

>> SELECT Customer.Customer_id, Visits.visit_date, Visits.location_id,;
>>  COUNT(*) AS vcount;
>> FROM ;
>>     hpmg!Customer ;
>>    LEFT OUTER JOIN hpmg!Visits ;
>>   ON  Customer.Customer_id = Visits.Customer_id;
>> WHERE  YEAR(Visits.visit_date) = ( 2015 );
>> GROUP BY Customer.Customer_id, Visits.visit_date, Visits.location_id;
>> HAVING  ( vcount ) > ( 1 ) INTO CURSOR curHold_2
>>

>>
>>

>> SELECT curHold_1.Customer_id, curHold_1.Customer_name, curHold_1.Visits_id,;
>>  curHold_1.visit_date, curHold_1.location_id;
>> FROM ;
>>     curHold_1 ;
>>    INNER JOIN curHold_2 ;
>>   ON  curHold_1.Customer_id = curHold_2.Customer_id;
>> WHERE (  curHold_1.Customer_id = curHold_2.Customer_id;
>>   AND  curHold_1.visit_date = curHold_2.visit_date );
>>   AND  curHold_1.location_id = curHold_2.location_id
>>

>>
>>...I suppose I could leave it this way but I'd really like a cleaner way to do it.