filmov
tv
Relational Algebra -Cartesian Product
Показать описание
Review Questions:
1. Which symbol is used for select?
2. Which symbol is used for project?
3. Can we do set difference between two relations with different number of columns?
4. Can we do cartesian product between two relations with different number of columns?
5. If we do Cartesian product between R1 having 5 columns and R2 having 2 columns, how many columns will be there in the resulting relation?
6. If we do a Cartesian product between R1 having 10 rows and R2 having 7 rows, how many rows will be there in the resulting relation?
7. Which symbol is used to show a Cartesian product?
1. Which symbol is used for select?
2. Which symbol is used for project?
3. Can we do set difference between two relations with different number of columns?
4. Can we do cartesian product between two relations with different number of columns?
5. If we do Cartesian product between R1 having 5 columns and R2 having 2 columns, how many columns will be there in the resulting relation?
6. If we do a Cartesian product between R1 having 10 rows and R2 having 7 rows, how many rows will be there in the resulting relation?
7. Which symbol is used to show a Cartesian product?
0:24:41
0:06:29
0:06:18
0:03:13
0:19:53
0:06:39
0:07:52
0:14:23
0:06:11
0:12:59
0:04:58
0:15:19
0:05:05
0:03:13
0:13:51
0:11:49
0:03:40
0:21:29
0:06:34
0:09:05
0:02:17
0:00:52
0:13:06
0:05:41