Thanks for the reply. I got a fair idea now.
But please also tell me one thing if I am using HANA Cloud Platform free edition trial database and I am importing a csv file and then by using .hdbti and .hdbdd I am able to create a table in _SYS_BIC schema.
Can we use a schema name other than _SYS_BIC in .hdbti and .hdbdd files so that table is created in different schema?