READ Free Dumps For Oracle- 1z1-051
Question ID 4725 | Which statement is true regarding the UNION operator? Select all that apply. |
Option A | A. NULL values are not ignored during duplicate checking |
Option B | B. Names of all columns must be identical across all SELECT statements |
Option C | C. By default, the output is not sorted |
Option D | D. The number of columns selected in all SELECT statements need to be the same |
Correct Answer | A,D |
Question ID 4726 | Evaluate the following SQL statements: |
Option A | A. ORDER BY "CUST_NO" |
Option B | B. ORDER BY "Last Name" |
Option C | C. ORDER BY CUST_NO |
Option D | D. ORDER BY 2,cust_id |
Option E | E. ORDER BY 2,1 |
Correct Answer | B,D,E |