Shamil Salakhetdinov
shamil at smsconsulting.spb.ru
Fri Oct 29 12:43:38 CDT 2010
Hi All, Yes, the issue was with IN clause - here is the test solution: http://northwind.codeplex.com/releases/view/26600#DownloadId=162049 It has tow tests of the same join SQL with and without using IN clause. Below is the sample output of the test case using IN clause - it fails. When IN clause isn't used then it works OK. F:\Temp6\OleDbProviderTest\Bin>OleDbProviderTest.exe 1 + ******** OleDbConnection Test ********* + 1st arg = 1 - test case 2nd arg = 100 max cycles qty Test case #1: use IN '' clause Test case #2: DO NOT use IN '' clause + ************* TEST SQL **************** + SELECT Order.OrderID, Order.OrderDate, Customer.CompanyName, Employee.FirstName, Employee.LastName, Product.ProductName, OrderDetail.Quantity, Category.CategoryName FROM Customer INNER JOIN ((select * from Employee IN '' [;Database=F:\Temp6\OleDbProvider Test\Bin\Northwind.NET.mdb]) as Employee INNER JOIN (((select * from Category IN '' [;Database=F:\Temp6\OleDbProvide rTest\Bin\Northwind.NET.mdb]) as Category INNER JOIN (select * from Product IN '' [;Database=F:\Temp6\OleDbProviderTes t\Bin\Northwind.NET.mdb]) as Product ON Category.CategoryID = Product.CategoryID ) INNER JOIN ((select * from [Order] IN '' [;Database=F:\Temp6\OleDbProviderTe st\Bin\Northwind.NET.mdb]) as [Order] INNER JOIN (select * from OrderDetail IN '' [;Database=F:\Temp6\OleDbProvid erTest\Bin\Northwind.NET.mdb]) as OrderDetail ON Order.OrderID = OrderDetail.OrderID) ON Product.ProductID = OrderDetail.ProductID) ON Employee.EmployeeID = Order.EmployeeID) ON Customer.CustomerId = Order.CustomerId ORDER BY Order.OrderDate DESC - ************* TEST SQL **************** - 29/10/2010 21:36:31: 1. ThreadCount = 9 29/10/2010 21:36:32: 2. ThreadCount = 18 29/10/2010 21:36:32: 3. ThreadCount = 21 29/10/2010 21:36:33: 4. ThreadCount = 26 29/10/2010 21:36:33: 5. ThreadCount = 31 29/10/2010 21:36:33: 6. ThreadCount = 33 29/10/2010 21:36:34: 7. ThreadCount = 36 29/10/2010 21:36:34: 8. ThreadCount = 38 29/10/2010 21:36:34: 9. ThreadCount = 37 29/10/2010 21:36:35: 10. ThreadCount = 33 29/10/2010 21:36:35: 11. ThreadCount = 36 29/10/2010 21:36:36: 12. ThreadCount = 40 29/10/2010 21:36:36: 13. ThreadCount = 44 29/10/2010 21:36:36: 14. ThreadCount = 46 29/10/2010 21:36:37: 15. ThreadCount = 45 29/10/2010 21:36:37: 16. ThreadCount = 52 29/10/2010 21:36:37: 17. ThreadCount = 57 29/10/2010 21:36:38: 18. ThreadCount = 61 29/10/2010 21:36:38: 19. ThreadCount = 60 29/10/2010 21:36:38: 20. ThreadCount = 65 TestConnection.ERROR:Unspecified error TestConnection.ERROR:Unspecified error TestConnection.ERROR:Unspecified error TestConnection.ERROR:Cannot open any more databases. TestConnection.ERROR:Cannot open any more databases. 29/10/2010 21:36:39: 21. ThreadCount = 61 TestConnection.ERROR:Cannot open any more databases. 29/10/2010 21:36:39: 22. ThreadCount = 63 TestConnection.ERROR:Unspecified error 29/10/2010 21:36:39: 23. ThreadCount = 63 TestConnection.ERROR:Unspecified error TestConnection.ERROR:Unspecified error TestConnection.ERROR:Unspecified error TestConnection.ERROR:Cannot open any more databases. 29/10/2010 21:36:40: 24. ThreadCount = 62 TestConnection.ERROR:Cannot open any more databases. TestConnection.ERROR:Unspecified error TestConnection.ERROR:Cannot open any more databases. 29/10/2010 21:36:40: 25. ThreadCount = 62 TestConnection.ERROR:Cannot open any more databases. TestConnection.ERROR:Cannot open any more databases. TestConnection.ERROR:Unspecified error 29/10/2010 21:36:40: 26. ThreadCount = 63 TestConnection.ERROR:Unspecified error TestConnection.ERROR:Cannot open any more databases. TestConnection.ERROR:Cannot open any more databases. 29/10/2010 21:36:41: 27. ThreadCount = 61 29/10/2010 21:36:41: 28. ThreadCount = 64 TestConnection.ERROR:Unspecified error TestConnection.ERROR:Unspecified error TestConnection.ERROR:Unspecified error TestConnection.ERROR:Cannot open any more databases. TestConnection.ERROR:Cannot open any more databases. 29/10/2010 21:36:41: 29. ThreadCount = 62 TestConnection.ERROR:Unspecified error 29/10/2010 21:36:42: 30. ThreadCount = 63 TestConnection.ERROR:Unspecified error TestConnection.ERROR:Unspecified error TestConnection.ERROR:Cannot open any more databases. 29/10/2010 21:36:42: 31. ThreadCount = 62 TestConnection.ERROR:Cannot open any more databases. 29/10/2010 21:36:42: 32. ThreadCount = 55 TestConnection.ERROR:Cannot open any more databases. 29/10/2010 21:36:43: 33. ThreadCount = 56 StartTime = 29/10/2010 21:36:31, EndTime = 29/10/2010 21:36:43 OK, TotalCount = 297, ElapsedTime = 0.0032 hours, ErrCount = 31 Press any key to quit... TestConnection.ERROR:Cannot open any more databases. Thank you. -- Shamil <<< snip >>>