Error while using DBMS_MVIEW

Question

All,
I am facing an error while running the below utility .
DB Version : 10.1.0.3.0
begin
dbms_mview.EXPLAIN_REWRITE( query => 'SELECT one_voice_industry ,quarter, SUM(license_revenue) FROM rep037_fin_iot WHERE 1 = 1 GROUP BY one_voice_industry,quarter',
mv => 'GSRT_INDUSTRY_SUMMARY_MV',
statement_id => 'pvyasara' );
end;
begin
ERROR at line 1:
ORA-00947: not enough values
ORA-06512: at "SYS.DBMS_XRWMV", line 94
ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2790
ORA-06512: at line 3
I have already created REWRITE_TABLE table in the same schema.
FYI : MV Script :
CREATE MATERIALIZED VIEW gsrt_industry_summary_mv
PCTFREE 0
BUILD IMMEDIATE
REFRESH COMPLETE
ENABLE QUERY REWRITE
AS
SELECT one_voice_industry ,
quarter ,
country,
region,
SUM(license_revenue) Revenue
FROM rep037_fin_iot
WHERE 1 = 1
GROUP BY one_voice_industry, quarter,country,region;
Thanks & Regards
Pramoda

Answer 1

Daniel,
I gathered stats on the table as well as MV.
exec dbms_stats.gather_table_stats(ownname => user,tabname => 'rep037_fin_iot',method_opt => 'FOR ALL INDEXED COLUMNS SIZE 254');
exec dbms_stats.gather_table_stats(ownname => user,tabname => 'gsrt_industry_summary_mv');
10053 trace level 1 output ,
Peeked values of the binds in SQL statement
PARAMETERS USED BY THE OPTIMIZER
PARAMETERS WITH ALTERED VALUES
db_file_multiblock_read_count = 16
PARAMETERS WITH DEFAULT VALUES
optimizer_mode_hinted = false
optimizer_features_hinted = 0.0.0
parallel_execution_enabled = true
parallel_query_forced_dop = 0
parallel_dml_forced_dop = 0
parallel_ddl_forced_degree = 0
parallel_ddl_forced_instances = 0
queryrewrite_fudge = 90
optimizer_features_enable = 10.1.0.3
optimizersearch_limit = 5
cpu_count = 2
active_instance_count = 1
parallel_threads_per_cpu = 2
hash_area_size = 131072
bitmap_merge_area_size = 1048576
sort_area_size = 65536
sort_area_retained_size = 0
sortelimination_cost_ratio = 0
optimizerblock_size = 8192
sortmultiblock_read_count = 2
hashmultiblock_io_count = 0
optimizermax_permutations = 2000
pga_aggregate_target = 92160 KB
pgamax_size = 204800 KB
sortspace_for_write_buffers = 1
queryrewrite_maxdisjunct = 257
smmauto_min_io_size = 56 KB
smmauto_max_io_size = 248 KB
smmmin_size = 128 KB
smmmax_size = 4608 KB
smmpx_max_size = 27648 KB
cputo_io = 0
optimizerundo_cost_change = 10.1.0.3
parallel_query_mode = enabled
parallel_dml_mode = disabled
parallel_ddl_mode = enabled
optimizer_mode = all_rows
sqlstat_enabled = false
optimizerpercent_parallel = 101
alwaysanti_join = choose
alwayssemi_join = choose
optimizermode_force = true
partitionview_enabled = true
alwaysstar_transformation = false
queryrewrite_or_error = false
hashjoin_enabled = true
cursor_sharing = exact
btree_bitmap_plans = true
star_transformation_enabled = false
optimizercost_model = choose
newsort_cost_estimate = true
complexview_merging = true
unnestsubquery = true
eliminatecommon_subexpr = true
predmove_around = true
convertset_to_join = false
pushjoin_predicate = true
pushjoin_union_view = true
fastfull_scan_enabled = true
optimenhance_nnull_detection = true
parallelbroadcast_enabled = true
pxbroadcast_fudge_factor = 100
orderednested_loop = true
noor_expansion = false
optimizer_index_cost_adj = 100
optimizer_index_caching = 0
systemindex_caching = 0
disabledatalayer_sampling = false
query_rewrite_enabled = true
query_rewrite_integrity = enforced
querycost_rewrite = true
queryrewrite_2 = true
queryrewrite_1 = true
queryrewrite_expression = true
queryrewrite_jgmigrate = true
queryrewrite_fpc = true
queryrewrite_drj = true
fullpwise_join_enabled = true
partialpwise_join_enabled = true
leftnested_loops_random = true
improvedrow_length_enabled = true
indexjoin_enabled = true
enabletype_dep_selectivity = true
improvedouterjoin_card = true
optimizeradjust_for_nulls = true
optimizerdegree = 0
usecolumn_stats_for_function = true
subquerypruning_enabled = true
subquerypruning_mv_enabled = false
orexpand_nvl_predicate = true
likewith_bind_as_equality = false
tablescan_cost_plus_one = true
costequality_semi_join = true
defaultnon_equality_sel_check = true
newinitial_join_orders = true
onesidecolstat_for_equijoins = true
optimpeek_user_binds = true
minimalstats_aggregation = true
forcetemptables_for_gsets = false
workarea_size_policy = auto
smmauto_cost_enabled = true
gsanti_semi_join_allowed = true
optimnew_default_join_sel = true
optimizer_dynamic_sampling = 2
prerewrite_push_pred = true
optimizernew_join_card_computation = true
unionrewrite_for_gs = yes_gset_mvs
generalizedpruning_enabled = true
optimadjust_for_part_skews = true
forcedatefold_trunc = false
statistics_level = typical
optimizersystem_stats_usage = true
skip_unusable_indexes = true
removeaggr_subquery = true
optimizerpush_down_distinct = 0
dmlmonitoring_enabled = true
optimizerundo_changes = false
predicateelimination_enabled = true
nestedloop_fudge = 100
projectview_columns = true
localcommunication_costing_enabled = true
localcommunication_ratio = 50
queryrewrite_vop_cleanup = true
slavemapping_enabled = true
optimizercost_based_transformation = linear
optimizermjc_enabled = true
rightouter_hash_enable = true
sprpush_pred_refspr = true
optimizercache_stats = false
optimizercbqt_factor = 50
optimizersqu_bottomup = true
ficarea_size = 131072
optimizerskip_scan_enabled = true
optimizercost_filter_pred = false
optimizersortmerge_join_enabled = true
optimizerjoin_sel_sanity_check = true
mmvquery_rewrite_enabled = false
btmmv_query_rewrite_enabled = true
addstale_mv_to_dependency_list = true
distinctview_unnesting = false
optimizerdim_subq_join_sel = true
optimizerdisable_strans_sanity_checks = 0
optimizercompute_index_stats = true
pushjoin_union_view2 = true
optimizerignore_hints = false
optimizerrandom_plan = 0
queryrewrite_setopgrw_enable = true
optimizercorrect_sq_selectivity = true
disablefunction_based_index = false
optimizerjoin_order_control = 3
optimizerpush_pred_cost_based = true
Column Usage Monitoring is ON: tracking level = 1
QUERY BLOCK SIGNATURE
qb name was generated
signature (optimizer): qb_name=SEL$1 nbfros=1 flg=0
fro(0): flg=0 objn=140994 hint_alias="REP037_FIN_IOT"@"SEL$1"
BASE STATISTICAL INFORMATION
Table stats Table: REP037_FIN_IOT Alias: REP037_FIN_IOT
TOTAL :: CDN: 1777280 NBLKS: 87853 AVG_ROW_LEN: 347
Index stats
Index: IOT_OVI_IDX COL#: 6
TOTAL :: LVLS: 2 #LB: 6020 #DK: 22 LB/K: 273 DB/K: 18372 CLUF: 404200
Index: IOT_OVS_IDX COL#: 7
TOTAL :: LVLS: 2 #LB: 6291 #DK: 76 LB/K: 82 DB/K: 6279 CLUF: 477229
OPTIMIZERPERCENT_PARALLEL = 0
COLUMN: ONE_VOICE_(VARCHAR2) Col#: 6 Table: REP037_FIN_IOT Alias: REP037_FIN_IOT
Size: 17 NDV: 22 Nulls: 0 Density: 2.8133e-07
Frequency Histogram: #BKT: 22
(5613 uncompressed buckets and 22 endpoint values)
COLUMN: QUARTER(VARCHAR2) Col#: 15 Table: REP037_FIN_IOT Alias: REP037_FIN_IOT
Size: 8 NDV: 14 Nulls: 0 Density: 7.1429e-02
No Histogram: #BKT: 1
(1 uncompressed buckets and 2 endpoint values)
SINGLE TABLE ACCESS PATH
TABLE: REP037_FIN_IOT Alias: REP037_FIN_IOT
Original Card: 1777280 Rounded: 1777280 Computed: 1777280.00 Non Adjusted: 1777280.00
Access Path: table-scan Resc: 19419 Resp: 19419
BEST_CST: 19419.12 PATH: 2 Degree: 1
Grouping column cardinality [ONE_VOICE_] 22
Grouping column cardinality [   QUARTER] 14
OPTIMIZER STATISTICS AND COMPUTATIONS
GENERAL PLANS
Join order[1]: REP037_FIN_IOT[REP037_FIN_IOT]#0
GROUP BY sort
GROUP BY cardinality: 218.00, TABLE cardinality: 1777280.00
SORT resource Sort statistics
Sort width: 25 Area size: 131072 Max Area size: 4718592
Degree: 1
Blocks to Sort: 9357 Row size: 43 Total Rows: 1777280
Initial runs: 1 Merge passes: 0 IO Cost / pass: 0
Total IO sort cost: 0 Total CPU sort cost: 1666749921
Total Temp space used: 0
Best so far: TABLE#: 0 CST: 19807 CDN: 1777280 BYTES: 53318400
(newjo-stop-1) k:0, spcnt:0, perm:1, maxperm:80000
GROUP BY cardinality: 218.00, TABLE cardinality: 1777280.00
SORT resource Sort statistics
Sort width: 25 Area size: 131072 Max Area size: 4718592
Degree: 1
Blocks to Sort: 9357 Row size: 43 Total Rows: 1777280
Initial runs: 1 Merge passes: 0 IO Cost / pass: 0
Total IO sort cost: 0 Total CPU sort cost: 1666749921
Total Temp space used: 0
Final - All Rows Plan:
JOIN ORDER: 1
CST: 19807 CDN: 1777280 RSC: 19807 RSP: 19807 BYTES: 53318400
IO-RSC: 19220 IO-RSP: 19220 CPU-RSC: 2523436190 CPU-RSP: 2523436190
QUERY
SELECT one_voice_industry ,quarter, SUM(license_revenue) FROM rep037_fin_iot WHERE 1 = 1 GROUP BY one_voice_industry,quarter
Looks like CBO is not even looking at MV as an alternative ,any thoughts?
Thanks & Regards
Pramoda