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ORA-01450: Maximum Key Length (6398) Exceeded When Creating a Materialized View (Doc ID 1072416.1)

Last updated on NOVEMBER 03, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 10.1.0.2 to 10.2.0.4 [Release 10.1 to 10.2]
Oracle Database - Enterprise Edition - Version 11.1.0.6 to 11.2.0.2 [Release 11.1 to 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

NOTE: In the images and/or the document content below, the user information and data used represents fictitious data from the Oracle sample schema(s) or Public Documentation delivered with an Oracle database product.  Any similarity to actual persons, living or dead, is purely coincidental and not intended in any manner.

When running the following create materialized view ( mview ) statement we see that the index coming from the master mview is causing the index key limit to be exceeded.

Offending create mview statement:

CREATE MATERIALIZED VIEW OWNER_SCHEMA.TEST_MVIEW
TABLESPACE TABLESPACE_NAME
NOCACHE
NOLOGGING
NOCOMPRESS
NOPARALLEL
BUILD DEFERRED
REFRESH COMPLETE ON DEMAND
WITH PRIMARY KEY
AS
SELECT regional_billing_function,
customer_region,
customer_name,
ssoref,
hlpcode,
hlpname,
bp_id,
billable_product,
bp_name,
bp_id_and_name,
bp_desc,
bp_is_swc,
bp_product_category_group,
bp_product_category_name,
bp_portfolio_name,
bp_business_name,
bp_organisation_name,
bp_programme_name,
bp_group,
bp_team_name,
swc_bcc,
pdu_name,
pdu_region,
pdu_business_area,
bp_it_owner,
bp_bus_sponsor,
bp_flagship_name,
bp_product_type_name,
customer_business_product,
customer_business_area,
customer_is_overhead,
cost_type,
bp_status,
latest_fcst_bp_status,
billable_service_code,
billable_service_name,
ito_type,
customer_currency,
billable_service_grouping,
billable_service_subgroup,
supplier_name,
bp_priority,
pdu_country,
pdu_cost_centre,
pdu_frm,
cust_rm,
cust_country,
cust_le_code,
cust_le_name,
cdu_name,
cdu_business_area,
cdu_region,
cdu_country,
pdu_group,
cdu_group,
consumption_type,
client,
cu_global_head,
pdu_area,
pdu_global_head,
system_name,
boulder_id,
boulder_description,
boulder_category,
boulder_owner,
boulder_currency,
allocation_percentage,
boulder_spend,
boulder_spend_usd,
supplier_type,
default_cost_centre,
customer_level_1,
customer_level_2,
customer_level_3,
last_billing_month,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 1 THEN local_cost ELSE 0 END) AS jan_act,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 2 THEN local_cost ELSE 0 END) AS feb_act,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 3 THEN local_cost ELSE 0 END) AS mar_act,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 4 THEN local_cost ELSE 0 END) AS apr_act,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 5 THEN local_cost ELSE 0 END) AS may_act,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 6 THEN local_cost ELSE 0 END) AS jun_act,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 7 THEN local_cost ELSE 0 END) AS jul_act,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 8 THEN local_cost ELSE 0 END) AS aug_act,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 9 THEN local_cost ELSE 0 END) AS sep_act,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 10 THEN local_cost ELSE 0 END) AS oct_act,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 11 THEN local_cost ELSE 0 END) AS nov_act,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 12 THEN local_cost ELSE 0 END) AS dec_act,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 1 THEN local_cost ELSE 0 END) AS jan_plan,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 2 THEN local_cost ELSE 0 END) AS feb_plan,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 3 THEN local_cost ELSE 0 END) AS mar_plan,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 4 THEN local_cost ELSE 0 END) AS apr_plan,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 5 THEN local_cost ELSE 0 END) AS may_plan,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 6 THEN local_cost ELSE 0 END) AS jun_plan,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 7 THEN local_cost ELSE 0 END) AS jul_plan,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 8 THEN local_cost ELSE 0 END) AS aug_plan,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 9 THEN local_cost ELSE 0 END) AS sep_plan,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 10 THEN local_cost ELSE 0 END) AS oct_plan,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 11 THEN local_cost ELSE 0 END) AS nov_plan,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 12 THEN local_cost ELSE 0 END) AS dec_plan,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 1 THEN local_cost ELSE 0 END) AS jan_fcst,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 2 THEN local_cost ELSE 0 END) AS feb_fcst,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 3 THEN local_cost ELSE 0 END) AS mar_fcst,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 4 THEN local_cost ELSE 0 END) AS apr_fcst,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 5 THEN local_cost ELSE 0 END) AS may_fcst,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 6 THEN local_cost ELSE 0 END) AS jun_fcst,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 7 THEN local_cost ELSE 0 END) AS jul_fcst,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 8 THEN local_cost ELSE 0 END) AS aug_fcst,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 9 THEN local_cost ELSE 0 END) AS sep_fcst,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 10 THEN local_cost ELSE 0 END) AS oct_fcst,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 11 THEN local_cost ELSE 0 END) AS nov_fcst,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 12 THEN local_cost ELSE 0 END) AS dec_fcst,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 1 THEN units ELSE 0 END) AS jan_act_units,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 2 THEN units ELSE 0 END) AS feb_act_units,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 3 THEN units ELSE 0 END) AS mar_act_units,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 4 THEN units ELSE 0 END) AS apr_act_units,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 5 THEN units ELSE 0 END) AS may_act_units,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 6 THEN units ELSE 0 END) AS jun_act_units,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 7 THEN units ELSE 0 END) AS jul_act_units,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 8 THEN units ELSE 0 END) AS aug_act_units,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 9 THEN units ELSE 0 END) AS sep_act_units,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 10 THEN units ELSE 0 END) AS oct_act_units,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 11 THEN units ELSE 0 END) AS nov_act_units,
SUM (CASE WHEN cycle_name = 'Actual' AND month_of_year = 12 THEN units ELSE 0 END) AS dec_act_units,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 1 THEN units ELSE 0 END) AS jan_plan_units,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 2 THEN units ELSE 0 END) AS feb_plan_units,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 3 THEN units ELSE 0 END) AS mar_plan_units,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 4 THEN units ELSE 0 END) AS apr_plan_units,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 5 THEN units ELSE 0 END) AS may_plan_units,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 6 THEN units ELSE 0 END) AS jun_plan_units,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 7 THEN units ELSE 0 END) AS jul_plan_units,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 8 THEN units ELSE 0 END) AS aug_plan_units,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 9 THEN units ELSE 0 END) AS sep_plan_units,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 10 THEN units ELSE 0 END) AS oct_plan_units,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 11 THEN units ELSE 0 END) AS nov_plan_units,
SUM (CASE WHEN cycle_name = 'Plan' AND month_of_year = 12 THEN units ELSE 0 END) AS dec_plan_units,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 1 THEN units ELSE 0 END) AS jan_fcst_units,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 2 THEN units ELSE 0 END) AS feb_fcst_units,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 3 THEN units ELSE 0 END) AS mar_fcst_units,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 4 THEN units ELSE 0 END) AS apr_fcst_units,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 5 THEN units ELSE 0 END) AS may_fcst_units,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 6 THEN units ELSE 0 END) AS jun_fcst_units,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 7 THEN units ELSE 0 END) AS jul_fcst_units,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 8 THEN units ELSE 0 END) AS aug_fcst_units,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 9 THEN units ELSE 0 END) AS sep_fcst_units,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 10 THEN units ELSE 0 END) AS oct_fcst_units,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 11 THEN units ELSE 0 END) AS nov_fcst_units,
SUM (CASE WHEN cycle_name = 'Forecast' AND month_of_year = 12 THEN units ELSE 0 END) AS dec_fcst_units
FROM ANOTHER_MVIEW              --   a nested mview, structure unknown
WHERE NOT (local_cost = 0 AND units = 0)
GROUP BY regional_billing_function,
customer_region,
customer_name,
ssoref,
hlpcode,
hlpname,
bp_id,
billable_product,
bp_name,
bp_id_and_name,
bp_desc,
bp_is_swc,
bp_product_category_group,
bp_product_category_name,
bp_portfolio_name,
bp_business_name,
bp_organisation_name,
bp_programme_name,
bp_group,
bp_team_name,
swc_bcc,
pdu_name,
pdu_region,
pdu_business_area,
bp_it_owner,
bp_bus_sponsor,
bp_flagship_name,
bp_product_type_name,
customer_business_product,
customer_business_area,
customer_is_overhead,
cost_type,
bp_status,
latest_fcst_bp_status,
billable_service_code,
billable_service_name,
ito_type,
customer_currency,
billable_service_grouping,
billable_service_subgroup,
supplier_name,
bp_priority,
pdu_country,
pdu_cost_centre,
pdu_frm,
cust_rm,
cust_country,
cust_le_code,
cust_le_name,
cdu_name,
cdu_business_area,
cdu_region,
cdu_country,
pdu_group,
cdu_group,
consumption_type,
client,
cu_global_head,
pdu_area,
pdu_global_head,
system_name,
boulder_id,
boulder_description,
boulder_category,
boulder_owner,
boulder_currency,
allocation_percentage,
boulder_spend,
boulder_spend_usd,
supplier_type,
default_cost_centre,
customer_level_1,
customer_level_2,
customer_level_3,
last_billing_month;


This gives the error:

ORA-01450: maximum key length (6398) exceeded while creating a materialized view

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution


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