System level permissions-data control, Database Management System

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System level permissions: With the use of data dictionary you can view them.

Let us take the table name as user_sys_privs (used in oracle).

DESCRIBE USER_SYS_PRIVS ;

SELECT * FROM USER_SYS_PRIVS ;

All these commands are very definite to a data base system and may be dissimilar on dissimilar DBMS.

DATABASE OBJECTS: VIEWS, SEQUENCES, INDEXES AND SYNONYMS

Some of the important concepts in a database system are the views and indexes.

Views are a mechanism that can support data independence and security. Indexes help in better query responses. Let us discuss about them along with two more concepts sequences and synonyms in more details.

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