Team Foundation Server.
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| Sno | Application | Cache |
| 1 | Life of Application objects are till the end of Application unless you destroy it. | Also provides application-wide scope but get destroyed by expiration mechanism. |
| 2 | You have Locking mechanism in Application object | Not available. |
| 3 | Not available. | Has a feature called SQL Cache dependency using which you can invalidate a cache object based on the changes to its source in the table |
| Sno | DataReader | DataAdapter |
| 1 | Works in Connected Mode | Works in Disconnected Mode |
| 2 | Can have only one record at a time | Can have more than 1 records. |
| 3 | Is ForwardOnly and Readonly | Can navigate front and back and editable |
| 4 | Faster | Slower |