1. Open four terminal sessions

1.1 Set the first terminal to read uncommitted.

1.2 Set the second terminal to read committed

1.3 Set the third terminal to repeatable read

1.4 Set the fourth terminal to serializable.

2. Perform insert, delete, update, and select on the s, p, j, and spj tables.

3. When four terminals run simultaneously, the schedule showing dirty read is shown as a screen dump (refer to the textbook example for the schedule), but you must indicate which combination of terminals 1, 2, 3, and 4 shows dirty read. do.