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Statistical Information
The statistical information includes:
- the total number of rows in each base table, stored in the column TABLE_CARD in the table's row in SYSTEM.TABLES
- the number of distinct values in each column of a table, stored in the column COLUMN_CARD in the column's row in SYSTEM.COLUMNS
- the number of non-NULL values in each column of a table, stored in the column COLUMN_CARD_NONULL in the column's row in SYSTEM.COLUMNS
- the lowest and highest values in each column of a table, stored in the columns COLUMN_LOW_VALUE and COLUMN_HIGH_VALUE in the column's row in SYSTEM.COLUMNS
 Upright Database Technology AB Voice: +46 18 780 92 00 Fax: +46 18 780 92 40 dbtechnology@upright.se |
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