To select all column 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 columns from the table the syntax is:
• 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”?
• 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.
• 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?
• 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>
• 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;
• You have a column that will only contain values from 0 to 256. What is the most economical data type to use for the column?
• What SQL structure is used to limit column values of a table?
• How can you change “Hansen” into “Nilsen” in the “LastName” column in the Persons table?