To Get the Best Results To achieve the best compression ratio:
{"Image DocumentName": "To Get the Best Results To achieve the best compression ratio:", "Image ImageDescription": "Analyze the table to get column statistics SELECT COLUMN_NAME, NUM_DISTINCT, NUM_NULLS, AVG_COL_LEN FROM DBA_TAB_COLUMNS ; Identify best candidate columns for sorting as columns with. Lowest number of distinct values (low NUM_DISTINCT) Least amount of null values (low NUM_NULLS) Longest average length (high AVG_COL_LEN) CTAS compress and use order by candidate_column.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}