Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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I want to ask how to combine 2 data like in Figure 1 and Figure 2 to be like Figure 3. Please do it in SQL 

user id sender
user_id_reciplent
Image_ld
like
user_id_sender
age_sender
gender_sender
user_id_reciplent
age_recipient
gender_recipient
image_id
like
user002
user001
image001
user002
30 Male
user001
28 Female
image001
1
user003
user001
image001
user003
18 Female
user001
28 Female
image001
1
user004
user001
image001
user
age
gender
user004
40 Male
user001
28 Female
image001
1
user005
user001
image001
user001
28 Female
user005
30 Female
user001
28 Female
image001
user002
user001
image002
+
user002
30 Male
user002
30 Male
user001
28 Female
image002
user003
user001
image002
user003
18 Female
user003
18 Female
user001
28 Female
image002
user004
user001
image002
user004
40 Male
user004
40 Male
user001
28 Female
image002
user005
user001
image002
user005
30 Female
user005
30 Female
user001
28 Female
image002
1
user001
user002
image003
user001
28 Female
user002
30 Male
image003
user003
user002
image003
user003
18 Female
user002
30 Male
image003
user004
user002
image003
user004
40 Male
user002
30 Male
image003
user005
user002
image003
user005
30 Female
user002
30 Male
image003
Transcribed Image Text:user id sender user_id_reciplent Image_ld like user_id_sender age_sender gender_sender user_id_reciplent age_recipient gender_recipient image_id like user002 user001 image001 user002 30 Male user001 28 Female image001 1 user003 user001 image001 user003 18 Female user001 28 Female image001 1 user004 user001 image001 user age gender user004 40 Male user001 28 Female image001 1 user005 user001 image001 user001 28 Female user005 30 Female user001 28 Female image001 user002 user001 image002 + user002 30 Male user002 30 Male user001 28 Female image002 user003 user001 image002 user003 18 Female user003 18 Female user001 28 Female image002 user004 user001 image002 user004 40 Male user004 40 Male user001 28 Female image002 user005 user001 image002 user005 30 Female user005 30 Female user001 28 Female image002 1 user001 user002 image003 user001 28 Female user002 30 Male image003 user003 user002 image003 user003 18 Female user002 30 Male image003 user004 user002 image003 user004 40 Male user002 30 Male image003 user005 user002 image003 user005 30 Female user002 30 Male image003
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