WebSphere Transformation Extender can be used to insert transformed data into a Database in this case I used DB2. Below is the steps to follow to do a DB2 Insert into WTX:
Step 1: Open WebSphere Transformation Extender Database Interface Designer. Select New to create a new Database Query File. Right Click on Databases to specify all the parameters to connect to your database, specify a data source and specify username and password of database:
Step 2: Right click on your newly created Data Source and Select: Generate Tree From -> Table
Step 3: Select the table you want to Generate a Type Tree for to do the insert
Step 4: Add this newly created Type Tree to your WTX Design Studio as an input card. Add the following tree called DB2load.mtt as your output Card.
Step 5: Complete your Output Card with all the necessary DB2 parameters and fields by dragging and dropping the from input card to output card:
Step 6: Run and compile your map, make sure all the database parameters are set and DB2 has started successfully.
Thys Michels Blog 
good post
Hi, I tried to do the same but im getting TARGET not found.
please advice
Hi,
Is there any possibility to get insert statements from the existing map?
I mean does WTX generate insert statements and store somewhere internally?
Thanks in advance