Hello Gopal,
Thank you very much for your help.
The SAP Note 1994104 is only for procedure under Content folder. For procedure under Catalog/Schema or hdbprocedure under Package I cannot find “Read-Only or ReadWrite Access Mode”.
I think, DDL statements are sometimes allowed in procedure, e.g. HANA can compile “create table … like …” in procedure.
Regards,
Y. Hu