Use relational algebra (operation like selection, procejection, etc.) to find names, age, rating of sailors who’ve reserved a green boat. SidSnameRatingAgeSidBidDay22Dustin745.02210110/10/9829Brutus 133.02210210/10/9831Lubber 855.52210310/8/98BidBname Color32Andy825.52210410/7/98101 Interlake Blue58Rusty1035.03110211/10/98102 Interlake Red64Horatio 735.03110311/6/98103 ClipperGreen71Zorba1016.03110411/12/98104 MarineRed74Horatio 935.0641019/5/98An Instance B1 of Boats85Art325.5641029/8/9895Bob363.5741039/8/98An Instance S3 of SailorsAn Instance R2 of Reserves

Relational algebra is also known relational query language Query languages: It allows manipulation…

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Use relational algebra (operation like selection, procejection, etc.) to find names, age, rating of sailors who’ve reserved a green boat.

Enhanced Discovering Computers 2017 (Shelly Cashman Series) (MindTap Course List)

1st Edition

ISBN:9781305657458

Author:Misty E. Vermaat, Susan L. Sebok, Steven M. Freund, Mark Frydenberg, Jennifer T. Campbell

Publisher:Misty E. Vermaat, Susan L. Sebok, Steven M. Freund, Mark Frydenberg, Jennifer T. Campbell

Chapter7: Input And Output: Extending Capabilities Of Computers And Mobile Devices

Section: Chapter Questions

Problem 9TF

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Question

Use relational algebra (operation like selection, procejection, etc.) to find names, age, rating of sailors who’ve reserved a green boat.

Sid
Sname
Rating
Age
Sid
Bid
Day
22
Dustin
7
45.0
22
101
10/10/98
29
Brutus 1
33.0
22
102
10/10/98
31
Lubber 8
55.5
22
103
10/8/98
Bid
Bname Color
32
Andy
8
25.5
22
104
10/7/98
101 Interlake Blue
58
Rusty
10
35.0
31
102
11/10/98
102 Interlake Red
64
Horatio 7
35.0
31
103
11/6/98
103 Clipper
Green
71
Zorba
10
16.0
31
104
11/12/98
104 Marine
Red
74
Horatio 9
35.0
64
101
9/5/98
An Instance B1 of Boats
85
Art
3
25.5
64
102
9/8/98
95
Bob
3
63.5
74
103
9/8/98
An Instance S3 of Sailors
An Instance R2 of Reserves

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