Useful Data Dictionary Views
| Database Storage | |
|---|---|
| Data Dictionary View | Used to Obtain Information About |
| DBA_TABLESPACES | Tablespaces |
| DBA_ROLLBACK_SEGS | Rollback segments |
| DBA_EXTENTS | Extents that comprise a segment |
| DBA_FREE_SPACE | Free extents in a database segment |
| DBA_TS_QUOTAS | Tablespace quotas for the various users |
| DBA_SEGMENTS | Database segments |
| DBA_DATA_FILES | Database files |
| Database objects | |
|---|---|
| Data Dictionary View | Used to Obtain Information About |
| DBA_TRIGGERS | Database triggers |
| DBA_OBJECT_SIZE | Size of various PL/SQL objects |
| DBA_OBJECTS | Database objects such as tables and views |
| DBA_SOURCE | Source of all database objects |
| DBA_ERRORS | Errors in the database objects |
| DBA_DEPENDENCIES | Dependencies between the various database objects |
| Database Security | |
|---|---|
| Data Dictionary View | Used to Obtain Information ... |
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