Audit mviews which are used by query rewrite

Question

Hi all,
on of our main customers want to find out which MVIEWS are used after an automated query rewrite.
Example:
select * from OP_SUM_BACKLOG_DAY_SAP_001;
select * from dba_audit_trail
where timestamp > trunc(sysdate)
and username = 'SMITH'
and obj_name = 'OP_SUM_BACKLOG_DAY_SAP_001'
This following statement is using the same MVIEW because of aggregations and the use of query rewrite:
  SELECT fbld_ddat_sales_month,
         SUM (fbld_dummy_zero) fbld_dummy_zero,
         SUM (fbld_dummy_null_number) fbld_dummy_null_number,
         SUM (fbld_oab_quantity) fbld_oab_quantity
    FROM op_fct_backlog_day_sap
GROUP BY fbld_ddat_sales_month;
This query is never listed in dba_audit_trail!!!
Plan
3 SELECT STATEMENT ALL_ROWS Cost: 291 Bytes: 52 Cardinality: 2 CPU Cost: 0 IO Cost: 0 Time: 00:00:00 Partition #: 0
2 HASH GROUP BY Projection: (#keys=1) "OP_SUM_BACKLOG_DAY_SAP_001"."FBLD_DDAT_SALES_MONTH"[VARCHAR2,6], SUM("OP_SUM_BACKLOG_DAY_SAP_001"."FBLD_OAB_QUANTITY")[22], SUM("OP_SUM_BACKLOG_DAY_SAP_001"."FBLD_DUMMY_NULL_NUMBER")[22], SUM("OP_SUM_BACKLOG_DAY_SAP_001"."FBLD_DUMMY_ZERO")[22] Cost: 291 Bytes: 52 Cardinality: 2 CPU Cost: 0 IO Cost: 0 Time: 00:00:00 Partition #: 0
1 MAT_VIEW REWRITE ACCESS FULL DWHOP.OP_SUM_BACKLOG_DAY_SAP_001 [Analyzed] Projection: "OP_SUM_BACKLOG_DAY_SAP_001"."FBLD_DDAT_SALES_MONTH"[VARCHAR2,6], "OP_SUM_BACKLOG_DAY_SAP_001"."FBLD_DUMMY_ZERO"[NUMBER,22], "OP_SUM_BACKLOG_DAY_SAP_001"."FBLD_DUMMY_NULL_NUMBER"[NUMBER,22], "OP_SUM_BACKLOG_DAY_SAP_001"."FBLD_OAB_QUANTITY"[NUMBER,22] Cost: 290 Bytes: 1.016.600 Cardinality: 39.100 CPU Cost: 0 IO Cost: 0 Time: 00:00:00 Partition #: 0
Any ideas how to audit this access???
Regards
Stephan

Answer 1

Hi,
Get the UID of your query from the query designer (select query in the properties window, goto Advanced tab).
Pass it to table RSZELTXREF (pass query UID to field SELTUID and 'VAR' to field LAYTP). This gives the list of variables used in the query. Now got to table RSZGLOBV, pass all the variable IDs (field values for TELTUID from table RSZELTXREF) to the field VARUNIID and restrict VPROCTP to '6'. This gives a list of all the auth variables used in a query.
Regards,
Murali.