Issue a SELECT statement that displays NEXTVAL for MY_FIRST_SEQ three times. Because the value isn't being placed in a table, use the DUAL table in the FROM clause of the SELECT statement. What causes the error on the third SELECT?

What is linux? an open source operating system a version of ms dos the first version of unix the newest technology available

Which is the correct sequence of steps to set up a document in landscape orientation? a. select page setup from the file menu. then click the margins tab and select landscape. b. select page setup from the edit menu. then click the margins tab and select landscape. c. select page setup from the insert menu. then click the margins tab and select landscape. d. select page setup from the format menu. then click the margins tab and select landscape

What is the total resistance in a circuit that contains three 60 ohm resistors connected in a series? a. 20 ohms b. 120 ohms c. 60 ohms d. 180 ohms