Technical Articles
HANA – Most Common SQL Statements & Functions
Finding index and primary keys of tables
SELECT IFNULL(CONSTRAINT,'NUNIQUE'), INDEX_NAME,COLUMN_NAME FROM INDEX_COLUMNS WHERE SCHEMA_NAME = '%s' AND TABLE_NAME = '%s' ORDER BY INDEX_OID,POSITION
Show details of users that have been logged-in
select * from "SYS"."USERS" where "LAST_SUCCESSFUL_CONNECT" is not null order by 9 desc;
To get all Libraries
select to_char(definition) from public.libraries where schema_name='EXT';
To get all DDL
call get_object_definition('<SCHEMA>','<TABLENAME>');
ALTER TABLE schema.table ADD PRIMARY KEY (column1,column2)
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%';
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 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');
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;
Show Corresponding Tables referring to which Schema
SELECT BASE_SCHEMA_NAME, BASE_OBJECT_NAME,DEPENDENT_SCHEMA_NAME, DEPENDENT_OBJECT_NAME,DEPENDENT_OBJECT_TYPE FROM "SYS"."OBJECT_DEPENDENCIES" WHERE BASE_SCHEMA_NAME = 'TCMP' /* <== Schema Name */ AND BASE_OBJECT_NAME = 'CS_SALESORDER' /* <== Table Name */
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;
Most Common Functions used in Implementation
SELECT SESSION_USER "session user" FROM DUMMY; SELECT TO_DATE('2010-01-12', 'YYYY-MM-DD') "to date" FROM DUMMY; SELECT TRIM ('a' FROM 'aaa123456789aa') "trim both" FROM DUMMY; SELECT CURRENT_DATE "current date" FROM DUMMY; SELECT DAYS_BETWEEN (TO_DATE ('2009-12-05', 'YYYY-MM-DD'), TO_DATE('2010-01-05', 'YYYY-MM-DD')) "days between" FROM DUMMY; SELECT UPPER ('Ant') "uppercase" FROM DUMMY; SELECT CONCAT ('C', 'at') "concat" FROM DUMMY; SELECT FLOOR (14.5) "floor" FROM DUMMY; SELECT TO_DECIMAL(7654321.888888, 10, 3) "to decimal" FROM DUMMY; SELECT REPLACE ('DOWNGRADE DOWNWARD','DOWN', 'UP') "replace" FROM DUMMY; SELECT RTRIM ('endabAabbabab','ab') "rtrim" FROM DUMMY; SELECT RIGHT('HI0123456789', 20) "right" FROM DUMMY; SELECT WEEK ('2017-01-02') FROM DUMMY; SELECT LENGTH ('length in char') "length" FROM DUMMY; SELECT SUBSTRING ('1234567890',4,2) "substring" FROM DUMMY; SELECT WEEKDAY (TO_DATE ('2010-12-31', 'YYYY-MM-DD')) "week day" FROM DUMMY; SELECT TO_VARCHAR (TO_DATE('2009-12-31'), 'YYYY/MM/DD') "to varchar" FROM DUMMY; SELECT YEARS_BETWEEN(TO_DATE('2001-01-01'), TO_DATE('2003-03-14')) "years_between" FROM DUMMY; SELECT YEAR (TO_DATE ('2011-05-30', 'YYYY-MM-DD')) "year" FROM DUMMY; SELECT MONTH ('2011-05-30') "month" FROM DUMMY; SELECT NOW () "now" FROM DUMMY; SELECT LAST_DAY (TO_DATE('2010-01-04', 'YYYY-MM-DD')) "last day" FROM DUMMY; SELECT DAYOFYEAR ('2021-05-30') "dayofyear" FROM DUMMY;
SET SCHEMA "SAPABC"; CREATE TABLE MY_DATES (FCID NVARCHAR(2), STARTDATE DATE, ENDDATE DATE); INSERT INTO MY_DATES VALUES ('01', '2014-01-01', '2014-02-14'); INSERT INTO MY_DATES VALUES ('01', '2014-04-01', '2014-05-14'); INSERT INTO MY_DATES VALUES ('01', '2014-07-01', '2014-08-05'); INSERT INTO MY_DATES VALUES ('01', '2014-10-01', '2014-10-30'); SELECT WORKDAYS_BETWEEN(FCID, STARTDATE, ENDDATE) "production duration" FROM MY_DATES;

Reference
https://help.sap.com/viewer/7c78579ce9b14a669c1f3295b0d8ca16/Cloud/en-US/20a61f29751910149f99f0300dd95cd9.html
This list of statements looks rather arbitrary to me.
Why would you always use the SYS views/tables when there are PUBLIC synonyms/versions for it?
And why would one use the column number in the ORDER BY clause? That’s just lazy writing (as Deadpool would call it)...
Rather than dropping SQL statements why don’t do write about how you used some of those statements to find something out in your HANA system? Something interesting and relevant for your situation. That’ll be interesting to read then as well.
Hi Lars Breddemann,
Thanks for reading the article!
Thanks for providing your feedback for making the suggestion. The above SQL statements are at a high level for Consultants implementing the SAP Commission project since I have tagged to global HANA. I welcome to make the changes to your points mentioned.
Very helpful article Yoga (Harvey) 🙂
Thanks Mike ( Teja Thogaru )!
Keep sharing this to your friends.
Thank you! Yoga for sharing. Very helpful. 🙂
Thanks Vijaya Rayapudi !
Keep sharing to your friends
Yoga, your sharing is very helpfull.
Thank you 🙂
Thank you Fabrice MAFOUANA-DUMOND !