The SYSSTATISTICS table describes the statistics within the current database.
The following table shows the contents of the SYSSTATISTICS system table.
Column Name | Type | Length | Nullable | Contents |
---|---|---|---|---|
STATID | CHAR | 36 | false | Unique identifier for the statistic |
REFERENCEID | CHAR | 36 | false | The conglomerate for which the statistic was created (join with SYSCONGLOMERATES. CONGLOMERATEID) |
TABLEID | CHAR | 36 | false | The table for which the information is collected |
CREATIONTIMESTAMP | TIMESTAMP | 29 | false | Time when this statistic was created or updated |
TYPE | CHAR | 1 | false | Type of statistics |
VALID | BOOLEAN | 1 | false | Whether the statistic is still valid |
COLCOUNT | INTEGER | 10 | false | Number of columns in the statistic |
STATISTICS | org.apache.derby.
catalog.Statistics This class is not part of the public API. |
2,147,483,647 | true | Statistics information |