Which collection types is also known as index-by tables, lets you look up elements Using arbitrary numbers and strings for subscript values?

Related MCQs

• Which of the syntax is correct for insert statement? i) insert into <table_name> values <list of values> ii) insert into <table_name> (column list) values <list of values>
• For select operation the                  appear in the subscript and the                         argument appears in the paranthesis after the sigma.
• For select operation the ________ appear in the subscript and the ___________ argument appears in the paranthesis after the sigmA:)
• A command that lets you change one or more fields in a record is
• Bitmaps can be combined with regular B+- tree indices for relations where a few attribute values are extremely common, and other values also occur, but much less frequently.
• View the Exhibit and examine the structure of the EMPLOYEES and DEPARTMENTS tables. Which SET operator would you use in the blank space in the following SQL statement to list the departments where all the employees have managers? SELECT department_id FROM departments ____ SELECT department_id FROM employees WHERE manager_id IS NULL;
• The file organization that provides very fast access to any arbitrary record of a file is:
• In the relational model, relationships between relations or tables are created by using:
• In the relational model, relationships between relations or tables are created by using:
• Let us consider phone_number ,which can take single or several values . Treating phone_numberas an                    permits instructors to have several phone numbers (including zero) associated with them.