Nonexistent LOB value
LOB 定位器指向数据库中不存在的 LOB 值。LOB 数据可能已被删除或定位器已过时。
SELECT table_name, column_name, segment_name FROM dba_lobs WHERE table_name = 'TABLE_NAME';SELECT segment_name, bytes/1024/1024 mb, extents FROM dba_segments WHERE segment_name IN (SELECT segment_name FROM dba_lobs WHERE table_name = 'TABLE_NAME');