MCQOPTIONS
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| 1. |
SELECT e.EMPLOYEE_ID,e.LAST_NAME,e.DEPARTMENT_ID, d.DEPARTMENT_NAMEFROM EMP e, DEPARTMENT d WHERE e.DEPARTMENT_ID = d.DEPARTMENT_ID;18.A SELECT statement can be used to perform these three functions: - Choose rows from a table. - Choose columns from a table. - Bring together data that is stored in different tables by creating a link between them.Which set of keywords describes these capabilities? |
| A. | difference, projection, join |
| B. | selection, projection, join |
| C. | Selection, intersection, join |
| D. | Intersection, projection, join |
| E. | |
| Answer» C. Selection, intersection, join | |