To select all columns from the table the syntax is:

Related MCQs

• Consider a hash table of size seven, with starting index zero, and a hash function (3x + 4)mod7. Assuming the hash table is initially empty, which of the following is the contents of the table when the sequence 1, 3, 8, 10 is inserted into the table using closed hashing? Note that ‘_’ denotes an empty location in the table.
• To select all column from the table the syntax is:
• The                          scheme uses a page table containing pointers to all pages; the page table itself and all updated pages are copied to a new location.
• Which of the following is used to get all the columns of a table?
• View the Exhibit and examine the data in the EMPLOYEES tables. Evaluate the following SQL statement: SELECT employee_id, department_id FROM employees WHERE department_id= 50 ORDER BY department_id UNION SELECT employee_id, department_id FROM employees WHERE department_id= 90 UNION SELECT employee_id, department_id FROM employees WHERE department_id= 10; What would be the outcome of the above SQL statement?
• What will be the number of columns of CARTESIAN PRODCUT if the participating relations have 5 and 7 columns respectively?
• With SQL, how do you select all the records from a table named “Persons” where the value of the column “FirstName” ends with an “a”?
• Which of the following is the operation that is used if we are interested in only certain attributes or columns of a table?
• Which of the following is a structure that provides faster access to the rows of a table based on the values of one or more columns?
• 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;