スナップショット

CREATE SNAPSHOT A_BIG_EUC_SNAP PCTFREE 10 PCTUSED 80 TABLESPACE EUC_TSP REFRESH COMPLETE START WITH TRUNC(SYSDATE) + 19/24 NEXT SYSDATE + 1/24 AS SELECT * FROM A_BIG_EUC_V /

DBMS_SNAPSHOT.REFRESH('TSSK_EUC_CHUZAN_SUMMARY_SNAP', 'C');