Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Given the following Staff2 table, please write a SQL statement to find the superno who supervised 4 or more staff.
The superno is the supervisor's staffno.
staffno fname Iname position
ABC1 New Engineer Intern
CC1 Super User DBA
SA9 Mary Howe
SG14 David Ford
SG37 Ann Beech
SG5 Susan Brand
SL21 John White
SL41 Julie Lee
XY1 New Tester
Forth
sex DOB
M
M
Assistant F
Supervisor M
Assistant F
Manager F
Manager M
Assistant F
Assistant M
salary branchno superno
1/1/2000 9000 B002
SL21
1/1/1995 90000 B005
SG14
2/19/1970
9000 B007
SG5
3/24/1958 18000 B003
SG5
11/10/1960
12000 B003
SG5
6/3/1940 24000 B003
SL21
10/1/1945 30000 B005
NULL
6/13/1965
9000 B005
SL21
1/1/1990 8000 B002
SL21
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Transcribed Image Text:Given the following Staff2 table, please write a SQL statement to find the superno who supervised 4 or more staff. The superno is the supervisor's staffno. staffno fname Iname position ABC1 New Engineer Intern CC1 Super User DBA SA9 Mary Howe SG14 David Ford SG37 Ann Beech SG5 Susan Brand SL21 John White SL41 Julie Lee XY1 New Tester Forth sex DOB M M Assistant F Supervisor M Assistant F Manager F Manager M Assistant F Assistant M salary branchno superno 1/1/2000 9000 B002 SL21 1/1/1995 90000 B005 SG14 2/19/1970 9000 B007 SG5 3/24/1958 18000 B003 SG5 11/10/1960 12000 B003 SG5 6/3/1940 24000 B003 SL21 10/1/1945 30000 B005 NULL 6/13/1965 9000 B005 SL21 1/1/1990 8000 B002 SL21
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