More frequently changing attributes (such as size modification date and number of observations) are stored in [MPE_DATASTATUS_TABS](/mpe_datastatus_tabs).
To trigger a scan, see the instructions [here](https://docs.datacontroller.io/admin-services/#refresh-data-catalog)
## Columns
-`TX_FROM num`: SCD2 open datetime
- 🔑 `TX_TO num`: SCD2 close datetime
- 🔑 `LIBREF char(8)`: SAS Libref (8 chars)
- 🔑 `DSN char(64)`: The library member name
-`MEMTYPE char(8)`: The member type
-`DBMS_MEMTYPE char(32)`: The DBMS Member Type
-`MEMLABEL char(512)`: The Data Set Label
-`TYPEMEM char(8)`: The Data Set Type
-`NVAR num`: The number of variables
-`COMPRESS char(8)`: The compression routine
-`PK_FIELDS char(512)`: The list of primary key fields. These are deduced from the table constraints. A Primary key column is identified by being in a constraint (or index) that is both UNIQUE and NOT NULL.