SQL statements for HANA DB maintenance

Hello,

quite often it’s necessary to fix issues related to HANA model execution – e.g. defective views,  troubles with authorizations etc. There are some SQL statements that are quite handy for that purpose and I like to share those:

 

–Check invalid custom DB views
select * from “SYS”.”VIEWS”
where schema_name not like ‘SAP%’ and is_valid = ‘FALSE’;

–Check inactive custom DB objects
select * from “_SYS_REPO”.”INACTIVE_OBJECT”
where “PACKAGE_ID” not like ‘sap%’;

–Show custom settings within global.ini and indexserver.ini
select * from “SYS”.”M_INIFILE_CONTENTS”
where (“LAYER_NAME” = ‘SYSTEM’ or “HOST” <> ”) and (“FILE_NAME” = ‘global.ini’ or “FILE_NAME” = ‘indexserver.ini’);

–Check which SAP language settings are being used by current user
select session_context(‘LOCALE_SAP’), session_context(‘LOCALE’) from dummy;

–Search executed SQL statements, e.g. to find out who deleted a table
select * from “SYS”.”M_EXECUTED_STATEMENTS” where “STATEMENT_STRING” LIKE ‘DROP TABLE%’;

–Show details of users that have been logged-in
select * from “SYS”.”USERS”
where “LAST_SUCCESSFUL_CONNECT” is not null
order by 9 desc;

–Show assigned user roles
select * from “SYS”.”GRANTED_ROLES”
where “GRANTEE_TYPE” = ‘USER’;

–Show assigned repository privileges
select * from “SYS”.”GRANTED_PRIVILEGES”
where object_type = ‘REPO’;

–Show objects owned by non-system users
select * from “SYS”.”OWNERSHIP”
where owner_name not like ‘SAP%’ and owner_name not like ‘%SYS%’
order by 1,2;

–Analyze expensive statement trace
select
to_varchar(“STATEMENT_START_TIME”,’DD.MM.YYYY’) “EXEC_DATE”,
to_varchar(“STATEMENT_START_TIME”,’HH24:MI:SS’) “EXEC_TIME”,
to_int(“DURATION_MICROSEC”/1000000) “DURATION_S”,
to_decimal(“MEMORY_SIZE”/1073741824,10,1) “MEM_GB”,
“RECORDS”,
“DB_USER”,
“APP_USER”,
“APPLICATION_NAME”,
“STATEMENT_STRING”,
length(“STATEMENT_STRING”) “SQL_LENGTH”,
OCCURRENCES_REGEXPR(‘JOIN’ FLAG ‘i’ IN “STATEMENT_STRING”) “JOIN”,
OCCURRENCES_REGEXPR(‘CASE’ FLAG ‘i’ IN “STATEMENT_STRING”) “DISTINCT”,
“ERROR_TEXT”,
“PARAMETERS”
from “SYS”.”M_EXPENSIVE_STATEMENTS”
where “OPERATION” in (‘INSERT’,’SELECT’,’AGGREGATED_EXECUTION’) –exclude background activity
and “RECORDS” > 0
and to_varchar(“STATEMENT_START_TIME”, ‘YYYYMMDD’) = current_date
and to_int(to_varchar(“STATEMENT_START_TIME”,’HH24′)) between 8 and 17 –business hours
order by 3 desc;

 

Please feel free to modify to your requirements. I am looking forward to your comments, especially if you have similar SQL statements to share.

 

https://blogs.sap.com/2018/11/29/sql-statements-for-hana-db-maintenance/

 

Posted on Dezember 6, 2018 in BWBLOG

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