Evaluate this SQL statement: What will happen if you remove all the parentheses from the calculation?（）
1、Evaluate the SQL statement: What is
Evaluate the SQL statement:What is the result of the statement?（）A The statement produces an error at line 1.B The statement produces an erro...
2、Evaluate these two SQL statements: SE
Evaluate these two SQL statements:SELECT last_name, salary , hire_dateFROM EMPLOYEESORDER BY salary DESC;SELECT last_name, salary, hire_dateFROM EMPL...
3、Evaluate this SQL statement: In the
Evaluate this SQL statement:In the statement, which capabilities of a SELECT statement are performed?（）A Selection, projection, joinB Difference,...
4、Evaluate these two SQL statements: W
Evaluate these two SQL statements:What is true about them?（）A The two statements produce identical results.B The second statement returns a syn...
5、Evaluate the SQL statement DROP TABLE
Evaluate the SQL statement DROP TABLE DEPT: Which four statements are true of the SQL statement? （）A You cannot roll back this statement.B A...
6、Evaluate this SQL statement: SELECT e.
Evaluate this SQL statement: SELECT e.EMPLOYEE_ID,e.LAST_NAME,e.DEPARTMENT_ID, d.DEPARTMENT_NAME FROM EMP e, DEPARTMENT d WHERE e.DEPARTMENT_ID = d.DE...