Hi Sandeil, Hopefully I am understanding your question correctly- I do know that this tablespace is home for MTL_MATERIAL_TRANSACTIONS, CST_ITEM_COST_DETAILS and other transactions/items/shipping tables, (APPS_TS_TX_DATA) and their indexes, (APPS_TS_TX_IDX.) And if any of the workflow or Apps objects(start with WF_ or FND_) ended up in these tablespaces, which is a problem and no matter what anyone says, I think the workflow objects should NOT BE stored in the same tablespaces as the apps schema objects, such as PO, BOM or ITM! They are known hot spots that can become heavily fragmented if you support businesses with high quantity of transactions and shipping. The other reason for heavy tablespace growth is due to not setting of the data purging feature. It is extremely important to get a sign off from all management and finance before even looking into this, as it will remove all journal entries of any data that is purged! Here is a thread that points to all the documents you should need: http://forums.oracle.com/forums/thread.jspa?threadID=1004903 As the transaction tables in high quantity transaction and shipping environments can have high fragmentation in the indexes, a simple approach to controlling the index tablespace may be to rebuild the indexes on a certain schedule. I did have good success with this in earlier versions and since it was online, I was able to perform this task quarterly without an outage to any service. PO, ITM and the FND/WF indexes showed a large performance gain from this practice, but remember, this is an "old-school" solution to this kind of problem that not all DBA's agree with... Hope this helps, Kellyn Pedersen Multi-Platform DBA I-Behavior Inc. http://www.linkedin.com/in/kellynpedersen "Go away before I replace you with a very small and efficient shell script..." --- On Mon, 1/4/10, seekuel <sandeil_tenebro@xxxxxxxxx> wrote: From: seekuel <sandeil_tenebro@xxxxxxxxx> Subject: Tablespace To: "Oracle Application Group" <ora-apps-dba@xxxxxxxxxxxxx> Date: Monday, January 4, 2010, 6:12 PM Dear all, May I ask from what you have experience on the following tablespaces: - APPS_TS_TX_IDX - APPS_TS_TX_DATA On our side, the following tablespaces always gets full and what I did is to add datafiles. Is this proper or is there an alternative. May I also know on what these tablespaces does? We are using R12.1 with database 11gR1. Need your experiences on this. Thank you, Sandeil