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Each row in the SYSVIEW system view describes a view in the database. Additional information about views can also be found in the SYSTAB system view. The underlying system table for this view is ISYSVIEW.
You can also use the sa_materialized_view_info system procedure for a more readable format of the information for materialized views. See sa_materialized_view_info system procedure.
| Column name | Column type | Column constraint |
|---|---|---|
| view_object_id | UNSIGNED BIGINT | NOT NULL |
| view_def | LONG VARCHAR | NOT NULL |
| mv_build_type | TINYINT | |
| mv_refresh_type | TINYINT | |
| mv_use_in_optimization | TINYINT | |
| mv_last_refreshed_at | TIMESTAMP | |
| mv_known_stale_at | TIMESTAMP |
view_object_id The object ID of the view.
view_def The definition (query specification) of the view.
mv_build_type Currently unused.
mv_refresh_type Currently unused.
mv_use_in_optimization This column is for materialized views only, and indicates whether the materialized view can be used during query optimization (0=cannot be used in optimization, 1=can be used in optimization). See Enabling and disabling optimizer use of a materialized view.
mv_last_refreshed_at This column is for materialized views only, and indicates the date and time of the last refresh.
mv_known_stale_at This column is for materialized views only, and indicates the time at which the materialized view became known as stale. This value corresponds to the time at which one of the underlying base tables was detected as having changed. A value of 0 indicates that the view is either fresh, or that it has become stale but the database server has not marked it as such because the view has not been used since it became stale. Use the sa_materialized_view_info system procedure to determine the status of a materialized view. See sa_materialized_view_info system procedure.
PRIMARY KEY (view_object_id)
FOREIGN KEY (view_object_id) references SYS.ISYSOBJECT (object_id) MATCH UNIQUE FULL