The MON_GET_TABLE table function returns monitor metrics for one or more tables.
None
List the activity on all tables accessed since the database was activated, aggregated across all database members, ordered by highest number of reads.
SELECT varchar(tabschema,20) as tabschema,
varchar(tabname,20) as tabname,
sum(rows_read) as total_rows_read,
sum(rows_inserted) as total_rows_inserted,
sum(rows_updated) as total_rows_updated,
sum(rows_deleted) as total_rows_deleted
FROM TABLE(MON_GET_TABLE('','',-2)) AS t
GROUP BY tabschema, tabname
ORDER BY total_rows_read DESC
The following is an example of output from this query.
TABSCHEMA TABNAME TOTAL_ROWS_READ ...
-------------------- -------------------- -------------------- ...
SYSIBM SYSHISTO 113 ...
SYSIBM SYSWORKL 22 ...
SYSIBM SYSROUTI 13 ...
SYSIBM SYSSERVI 13 ...
SYSIBM SYSTHRES 6 ...
SYSIBM SYSTABLE 3 ...
SYSIBM SYSCONTE 2 ...
SYSIBM SYSDBAUT 2 ...
SYSIBM SYSEVENT 2 ...
SYSIBM SYSPLAN 1 ...
SYSIBM SYSSURRO 1 ...
SYSIBM SYSVERSI 1 ...
SYSIBM SYSXMLST 1 ...
SYSIBM SYSAUDIT 0 ...
SYSIBM SYSROLEA 0 ...
SYSIBM SYSROLES 0 ...
SYSIBM SYSTASKS 0 ...
SYSIBM SYSWORKA 0 ...
SYSIBM SYSXMLPA 0 ...
19 record(s) selected.
Output for query (continued).
... TOTAL_ROWS_INSERTED TOTAL_ROWS_UPDATED TOTAL_ROWS_DELETED
... -------------------- -------------------- --------------------
... 0 0 0
... 0 0 0
... 0 0 0
... 0 0 0
... 0 0 0
... 0 0 0
... 0 0 0
... 0 0 0
... 0 0 0
... 0 0 0
... 0 0 0
... 0 0 0
... 0 0 0
... 0 0 0
... 0 0 0
... 0 0 0
... 0 0 0
... 0 0 0
... 0 0 0
The MON_GET_TABLE table function returns one row of data per database table and per database member. If range-partitioned tables are being used, one row is returned for each table partition per database member. No aggregation across database members is performed. However, aggregation can be achieved through SQL queries as shown in the example.
Metrics are returned only for tables accessed since the database was activated.
The metrics returned by this function are collected at two levels. Some metrics are always collected, while the collection of other metrics is controlled at the database level using the mon_obj_metrics configuration parameter. Refer to the descriptions provided in the following table to determine if any settings must be active for data to be collected for a particular metric.