多项选择题
A. Bind Variable Peeking B. SQL Plan Baselines C. Adaptive Cursor Sharing D. Bind variable used in a SQL statement E. Literals in a SQL statement
A. Missing or stale histogram statistics B. Undersized shared pool C. High clustering factor for the indexes D. High value for the DB_FILE_MULTIBLOCK_READ_COUNT parameter E. Oversized buffer cache
A. The PDB must be open in read-only mode. B. The PDB must be in mount state. C. The PDB must be unplugged. D. The PDB data files are always removed from disk. E. A dropped PDB can never be plugged back into a multitenant container database (CDB).