a) Write an SQL query to find the manufacturer and model for all aircraft models with capacity at least 300.                                                                                                                                                       b) write a relational algebra expression which is equivalent to the above query.     c)  Write an SQL query to find the names of the airlines that have at least 10 Boeing 737 in their fleet.    d) What is the result of the natural join of the following two tables: Airlines and Fleet

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. a) Write an SQL query to find the manufacturer and model for all aircraft models with capacity at least 300.                                                                                                                                                   

   b) write a relational algebra expression which is equivalent to the above query. 

   c)  Write an SQL query to find the names of the airlines that have at least 10 Boeing 737 in their fleet.

   d) What is the result of the natural join of the following two tables: Airlines and Fleet

 

 

 

         

Aircraft_Models
Airlines
Fleet
MID manufacturer model capacity
AID
AID MID
name
count
1
777
340
AA
Вoeing
Boeing
Вoeing
Airbus
1
1
3
15
2
787
260
2
UAL
1
2
10
3
737
140
3
DAL
2
14
320
380
4
230
4
SWA
3
1
8
5
Airbus
560
5
ASA
3
24
Вoeing
747
420
4
3
7
5
3
16
Transcribed Image Text:Aircraft_Models Airlines Fleet MID manufacturer model capacity AID AID MID name count 1 777 340 AA Вoeing Boeing Вoeing Airbus 1 1 3 15 2 787 260 2 UAL 1 2 10 3 737 140 3 DAL 2 14 320 380 4 230 4 SWA 3 1 8 5 Airbus 560 5 ASA 3 24 Вoeing 747 420 4 3 7 5 3 16
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