The Tables tab in the Tablespaces drilldown shows a list of all tables in the selected tablespace. The list provides the following information about each table in a grid format. Since you can choose to hide, display, or rearrange any column in the grid, some columns below might not appear in your current list view, or be in the order shown here.
|
Column |
Description |
| Schema | Schema name of a table. Only catalog and user tables use schema names. |
| Name | Name of the table. Only catalog and user tables have table names. |
| Rows Read | The number of rows read from this table since Spotlight on IBM® DB2® LUWconnected to the DB2 for LUW database or since statistics were reset. If this value is high, consider creating additional indexes on the table. |
| Rows Written | The total number of rows that were changed (inserted, deleted, or update) in the table since Spotlight connected to the database or since statistics were reset. If this value is high, consider executing the DB2 RUNSTATS utility on this table to keep its statistics up to date for efficient SQL access to the table data. |
| Index Pages | Name of the tablespace that holds all indexes created on the table. |
| Overflow Accesses |
The number of times that accesses to overflowed rows on this table were required since Spotlight connected to the database or since statistics were reset. An overflowed row is an updated row that no longer fits on the data page where the row was originally written. The overflow is usually the result of one of these events:
Overflowed rows indicate that data fragmentation has occurred. If the number overflowed row accesses for the table is high, consider reorganizing the table using the DB2 REORG utility to clean up the fragmentation. |
| Page Reorgs | Total number of page reorganizations for a table. |
| Data Pages |
Total number of pages used by data in this table. |
| Lob Pages | Total number of pages used by LOBS related to this table. |
| Long Pages |
Total number of pages used by long data in this table. |
| XML Pages |
Total number of XML pages from tablespace containers for regular and large spaces. |
| Data Partition ID |
Identifies the data partition for which information is returned. |
| Type | Identities the type of table for which information is returned. |
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