Question

In my query I need to return distinct fields for my search. However the txt_note field returns info even if there is none.

SELECT DISTINCT T_ORDER_DETAIL.TXT_ORDER_NUMBER, 
                T_ORDER_DETAIL.CUSTOMER_PRODUCT_ID, 
                T_VENDOR.VENDOR_ID, 
                T_CUSTOMER_ACCOUNT.CUSTOMER_ID, 
                T_EMPLOYEE.TXT_EMAIL, 
                T_ORDER_ASSIGNMENT.TXT_NOTE 
FROM   T_VENDOR_EMPLOYEE 
       INNER JOIN T_VENDOR WITH(nolock) 
               ON T_VENDOR_EMPLOYEE.VENDOR_ID = T_VENDOR.VENDOR_ID 
       INNER JOIN T_CUSTOMER_ACCOUNT WITH(nolock) 
                  INNER JOIN T_ORDER_DETAIL WITH(nolock) 
                             INNER JOIN T_CUSTOMER_PRODUCT WITH(nolock) 
                                     ON T_ORDER_DETAIL.CUSTOMER_PRODUCT_ID = 
                                        T_CUSTOMER_PRODUCT.CUSTOMER_PRODUCT_ID 
                          ON T_CUSTOMER_ACCOUNT.CUSTOMER_ACCOUNT_ID = 
                             T_CUSTOMER_PRODUCT.CUSTOMER_ACCOUNT_ID 
               ON T_VENDOR_EMPLOYEE.VENDOR_EMPLOYEE_ID = 
                  T_ORDER_DETAIL.VENDOR_EMPLOYEE_ID 
       INNER JOIN T_EMPLOYEE WITH(nolock) 
               ON T_VENDOR_EMPLOYEE.EMPLOYEE_ID = T_EMPLOYEE.EMPLOYEE_ID 
       INNER JOIN T_ORDER_DETAIL_REJECTION_REASON WITH(nolock) 
               ON T_ORDER_DETAIL.ORDER_DETAIL_ID = 
                  T_ORDER_DETAIL_REJECTION_REASON.ORDER_DETAIL_ID 
       INNER JOIN T_ORDER_ASSIGNMENT WITH(nolock) 
               ON T_VENDOR_EMPLOYEE.VENDOR_EMPLOYEE_ID = 
                  T_ORDER_ASSIGNMENT.VENDOR_EMPLOYEE_ID 
WHERE  T_ORDER_ASSIGNMENT.INT_ACCEPTED = 4 
       AND T_ORDER_ASSIGNMENT.TXT_NOTE <> '' 

Even though it returns info, when you look at the actual order that field is blank.

txt_Order_Number    Customer_Product_ID vendor_ID   customer_id txt_email   txt_Note
260247648   555 134242  650 [e-mail]  Out of office
260498186   2783    134242  429 [e-mail]  Out of office
261108453b  1485    134242  206 [e-mail]  Out of office
261240252b  4429    134242  206 [e-mail]  Out of office
270158583b  4429    134242  206 [e-mail]  Out of office
270877727   3190    134242  724 [e-mail]  Out of office
271239690b  4817    134242  486 [e-mail]  Out of office
280162866b  5378    134242  721 [e-mail]  Out of office
280968017b  1485    134242  206 [e-mail]  Out of office
290702640   9361    134242  120 [e-mail]  Out of office
291294922-50    9972    134242  977 [e-mail]  Out of office
300453305-25    3648    134242  206 [e-mail]  Out of office
301297011-50    1922    134242  206 [e-mail]  Out of office

only one of the txt_not actually has out of office in it and the rest are blank.

any help is greatly appreciated.

Thanks

Answer 1

I would try simplifying the query, starting with as few inner joins as possible. Ie:

SELECT * 
FROM t_Vendor_Employee 
INNER JOIN t_Order_Assignment ON t_Vendor_Employee.vendor_employee_id = t_Order_Assignment.vendor_employee_id 
WHERE t_Order_Assignment.int_Accepted = 4 and t_Order_Assignment.txt_Note <> '' 

If this gives the expected result, add more inner joins until you get your error – then look at the data and see if you can identify the cause.

---

Also, are you aware that your use of WITH (NOLOCK) might cause you to miss committed rows?

http://blogs.msdn.com/sqlcat/archive/2007/02/01/previously-committed-rows-might-be-missed-if-nolock-hint-is-used.aspx