Newbie Question: Table Polling And Select Query In A Loop

Hi,



I am a newbie in SSIS.

Can anybody please help me in the following.



Here is the task that I want to achieve:



1. continously poll a db table every 1 minute,

if the value of a paticular cell in the table has changed since last poll,

then initiate the second task



2. do a select query that picks about 10,000 new rows off another db table,

the 10,000 rows should then be stored in a in-memory dataset.

Every time the poll initiates a new select query, it should insert the new rows to the existing in-memory dataset.

thus if the select runs for 2 times in 2 minutes, the the in-memory dataset would contain a maximum of 20,000 rows.



3. Then I want to apply a set of transformations on the dataset and then finally update some db tables, push some records to the ssas database. (push mode incremental processing)



which sub tasks can be achieved and which cannot.

if not, Is there a workaround?



Please do provide some specific links that accomplish some of these similar tasks.



I have tested some functionality, like

doing a full processing of a ssas database.

reading from a database table and inserting into a flat file.

I tired to use the ExecuteSQLTask, and i also assigned the resultant to an user:variable. the execution completed succesfully but I am not able to see the value of the variable change. also I am not able to use the variable to figure out a change in previous value and thus initiate a sql select. or use the variable to do anything.





Regards

Vijay R