Page lock levels
The table in this section describes the page lock levels that are displayed by OMEGAMON® for DB2® PE.
| Lock type | Description | Explanation |
|---|---|---|
| S | Shared | The lock owner and any concurrent programs might read, but not change the locked data. |
| U | Update | The lock owner can read the data, and intends to change it. Concurrent programs can acquire S locks and read the data; no other program can acquire a U lock. |
| X | Exclusive | The lock owner can read or change the locked data. No other program can acquire any lock on the data, or access the locked data at all. |