SQL vazifa to'plami 8.10 Darajasi

Quyidagi jadvallar berilgan:

authors
id	first_name	last_name
id	first_name	last_name
1	Jack	Brown
2	John	Doe
3	Max	White

tags
id	name
1	IT
1	PHP
2	JavaScript
3	React
4	Angular
5	Vue.js
6	C/C++
7	Rust

posts
id	title	likes	author_id
1	Lorem ipsum	3810	2
2	Lorem ipsum dolor sit amet	1913	2
3	Lorem ipsum dolor sit	4111	1
4	Lorem ipsum dolor	6700	3

post_tag
id	post_id	tag_id
1	1	1
2	1	2
3	1	3
4	1	4
5	1	5
6	2	7
7	2	6
8	2	5
9	2	1
10	2	3
11	3	1
12	3	7
13	3	5
14	3	6
15	4	5
16	4	1
17	4	7
18	4	6

Ularni quyidagi vazifalarni yeching:

Teglari bo'lgan postlari eng ko'p bo'lgan muallifni toping. Muallifning ismini, uning tegli postlari sonini va shu postlar ro'yxatini chiqaring.

Turli mualliflar tomonidan postlarda eng ko'p ishlatilgan teglarni toping. Teg nomlarini, ushbu tegni ishlatgan noyob mualliflar sonini va shu mualliflar ro'yxatini chiqaring.

id	post_id	tag_id
1	1	1
2	1	2
3	1	3
4	1	4
5	1	5
6	2	7
7	2	6
8	2	5
9	2	1
10	2	3
11	3	1
12	3	7
13	3	5
14	3	6
15	4	5
16	4	1
17	4	7
18	4	6

id	post_id	tag_id
1	1	1
2	1	2
3	1	3
4	1	4
5	1	5
6	2	7
7	2	6
8	2	5
9	2	1
10	2	3
11	3	1
12	3	7
13	3	5
14	3	6
15	4	5
16	4	1
17	4	7
18	4	6

id	post_id	tag_id
1	1	1
2	1	2
3	1	3
4	1	4
5	1	5
6	2	7
7	2	6
8	2	5
9	2	1
10	2	3
11	3	1
12	3	7
13	3	5
14	3	6
15	4	5
16	4	1
17	4	7
18	4	6