在SSIS或SQL命令中合并多个表

Question

I'm facing a problem with fetching data from multiple sources. It would be great if you can provide your ideas to design the SQL query. I have to take data from two tables and INSERT it into a third table.

INPUT

TABLE 1
- TaskOrderNumer
- MemberID

TABLE 2
- ReferenceID
- MemberID

OUTPUT

TABLE 3
- TaskRefID
- PatID

My input table has TaskOrderNumber and MemberID . Right now I'm joining TABLE1 and TABLE2 based on MemberID . I'm getting the corresponding ReferenceID from TABLE2 and mapping it into PatID of TABLE3 . The TaskOrder Number in TABLE1 = TaskRefID in TABLE3 .

I'm currently doing this using SSIS components. I want to make sure that the correct data is MERGED. I'm not able to map the TaskOrderNumber to TaskRefID . Can you please help me design the solution.

Answer 1

You can simply query the information you are trying to display. I am not sure I would even bother with SSIS here unless your sources aren't SQL.

select t1.TaskOrderID as TaskRefID
   ,t2.ReferenceID as PatID
into Table3 --Added this as edit.
from Table1 t1
join Table2 t2 on t1.MemberID=t2.MemberID