是否有一些功能可以从此表中删除冗余？
这是查询
db2 => SELECT qwe.workdept, qwe.lastname, weq.projname, ewq.actno FROM employee qwe, project weq INNER JOIN empprojact ewq ON weq.projno=ewq.projno WHERE workdept='A00'ORDER BY 2,3
结果就是这样。
WORKDEPT LASTNAME PROJNAME ACTNO
-------- --------------- ------------------------ ------
A00 HAAS ACCOUNT PROGRAMMING 70
A00 HAAS ACCOUNT PROGRAMMING 80
A00 HAAS ACCOUNT PROGRAMMING 80
A00 HAAS ACCOUNT PROGRAMMING 70
A00 HAAS ACCOUNT PROGRAMMING 70
A00 HAAS ACCOUNT PROGRAMMING 60
A00 HAAS ACCOUNT PROGRAMMING 60
A00 HAAS ACCOUNT PROGRAMMING 60
A00 HAAS ACCOUNT PROGRAMMING 180
A00 HAAS ACCOUNT PROGRAMMING 180
A00 HAAS ACCOUNT PROGRAMMING 180
A00 HAAS ACCOUNT PROGRAMMING 80
A00 HAAS ACCOUNT PROGRAMMING 80
A00 HAAS ACCOUNT PROGRAMMING 70
A00 HAAS ADMIN SERVICES 10
A00 HAAS APPLICATIONS SUPPORT 140
A00 HAAS APPLICATIONS SUPPORT 160
A00 HAAS DB/DC SUPPORT 140
A00 HAAS DB/DC SUPPORT 170
A00 HAAS GENERAL ADMIN SYSTEMS 10
A00 HAAS OPERATION 10
A00 HAAS OPERATION 130
A00 HAAS OPERATION 130
A00 HAAS OPERATION 130
A00 HAAS OPERATION 130
A00 HAAS OPERATION SUPPORT 10
A00 HAAS PAYROLL PROGRAMMING 60
A00 HAAS PAYROLL PROGRAMMING 80
A00 HAAS PAYROLL PROGRAMMING 70
A00 HAAS PAYROLL PROGRAMMING 180
A00 HAAS PAYROLL PROGRAMMING 80
A00 HAAS PAYROLL PROGRAMMING 70
A00 HAAS PAYROLL PROGRAMMING 60
A00 HAAS PERSONNEL PROGRAMMING 60
A00 HAAS PERSONNEL PROGRAMMING 180
A00 HAAS PERSONNEL PROGRAMMING 80
A00 HAAS PERSONNEL PROGRAMMING 80
A00 HAAS PERSONNEL PROGRAMMING 70
A00 HAAS PERSONNEL PROGRAMMING 70
A00 HAAS PERSONNEL PROGRAMMING 70
A00 HAAS PERSONNEL PROGRAMMING 60
A00 HAAS PERSONNEL PROGRAMMING 60
A00 HAAS QUERY SERVICES 10
A00 HAAS QUERY SERVICES 90
A00 HAAS QUERY SERVICES 100
A00 HAAS QUERY SERVICES 90
A00 HAAS SCP SYSTEMS SUPPORT 140
A00 HAAS SCP SYSTEMS SUPPORT 150
A00 HAAS SYSTEMS SUPPORT 10
A00 HAAS SYSTEMS SUPPORT 10
A00 HAAS USER EDUCATION 10
A00 HAAS USER EDUCATION 110
A00 HAAS USER EDUCATION 110
A00 HAAS USER EDUCATION 100
A00 HAAS USER EDUCATION 100
A00 HAAS W L PROD CONT PROGS 60
A00 HAAS W L PROD CONT PROGS 180
A00 HAAS W L PROD CONT PROGS 80
A00 HAAS W L PROD CONT PROGS 70
A00 HAAS W L PROD CONT PROGS 80
A00 HAAS W L PROGRAM DESIGN 50
A00 HAAS W L PROGRAM DESIGN 40
A00 HAAS W L PROGRAM DESIGN 60
A00 HAAS W L PROGRAMMING 10
A00 HAAS W L ROBOT DESIGN 60
A00 HAAS W L ROBOT DESIGN 80
A00 HAAS W L ROBOT DESIGN 70
A00 HAAS W L ROBOT DESIGN 70
A00 HAAS W L ROBOT DESIGN 60
A00 HAAS W L ROBOT DESIGN 180
A00 HAAS WELD LINE AUTOMATION 10
A00 HAAS WELD LINE AUTOMATION 20
A00 HAAS WELD LINE PLANNING 30
A00 HEMMINGER ACCOUNT PROGRAMMING 70
A00 HEMMINGER ACCOUNT PROGRAMMING 80
A00 HEMMINGER ACCOUNT PROGRAMMING 80
A00 HEMMINGER ACCOUNT PROGRAMMING 70
A00 HEMMINGER ACCOUNT PROGRAMMING 70
A00 HEMMINGER ACCOUNT PROGRAMMING 60
A00 HEMMINGER ACCOUNT PROGRAMMING 60
A00 HEMMINGER ACCOUNT PROGRAMMING 60
A00 HEMMINGER ACCOUNT PROGRAMMING 180
A00 HEMMINGER ACCOUNT PROGRAMMING 180
A00 HEMMINGER ACCOUNT PROGRAMMING 180
A00 HEMMINGER ACCOUNT PROGRAMMING 80
A00 HEMMINGER ACCOUNT PROGRAMMING 80
A00 HEMMINGER ACCOUNT PROGRAMMING 70
A00 HEMMINGER ADMIN SERVICES 10
A00 HEMMINGER APPLICATIONS SUPPORT 140
A00 HEMMINGER APPLICATIONS SUPPORT 160
A00 HEMMINGER DB/DC SUPPORT 140
A00 HEMMINGER DB/DC SUPPORT 170
A00 HEMMINGER GENERAL ADMIN SYSTEMS 10
A00 HEMMINGER OPERATION 10
A00 HEMMINGER OPERATION 130
A00 HEMMINGER OPERATION 130
A00 HEMMINGER OPERATION 130
A00 HEMMINGER OPERATION 130
A00 HEMMINGER OPERATION SUPPORT 10
A00 HEMMINGER PAYROLL PROGRAMMING 60
A00 HEMMINGER PAYROLL PROGRAMMING 80
A00 HEMMINGER PAYROLL PROGRAMMING 70
A00 HEMMINGER PAYROLL PROGRAMMING 180
A00 HEMMINGER PAYROLL PROGRAMMING 80
A00 HEMMINGER PAYROLL PROGRAMMING 70
A00 HEMMINGER PAYROLL PROGRAMMING 60
A00 HEMMINGER PERSONNEL PROGRAMMING 60
A00 HEMMINGER PERSONNEL PROGRAMMING 180
A00 HEMMINGER PERSONNEL PROGRAMMING 80
A00 HEMMINGER PERSONNEL PROGRAMMING 80
A00 HEMMINGER PERSONNEL PROGRAMMING 70
A00 HEMMINGER PERSONNEL PROGRAMMING 70
A00 HEMMINGER PERSONNEL PROGRAMMING 70
A00 HEMMINGER PERSONNEL PROGRAMMING 60
A00 HEMMINGER PERSONNEL PROGRAMMING 60
A00 HEMMINGER QUERY SERVICES 10
A00 HEMMINGER QUERY SERVICES 90
A00 HEMMINGER QUERY SERVICES 100
A00 HEMMINGER QUERY SERVICES 90
A00 HEMMINGER SCP SYSTEMS SUPPORT 140
A00 HEMMINGER SCP SYSTEMS SUPPORT 150
A00 HEMMINGER SYSTEMS SUPPORT 10
A00 HEMMINGER SYSTEMS SUPPORT 10
A00 HEMMINGER USER EDUCATION 10
A00 HEMMINGER USER EDUCATION 110
A00 HEMMINGER USER EDUCATION 110
A00 HEMMINGER USER EDUCATION 100
A00 HEMMINGER USER EDUCATION 100
A00 HEMMINGER W L PROD CONT PROGS 60
A00 HEMMINGER W L PROD CONT PROGS 180
A00 HEMMINGER W L PROD CONT PROGS 80
A00 HEMMINGER W L PROD CONT PROGS 70
A00 HEMMINGER W L PROD CONT PROGS 80
A00 HEMMINGER W L PROGRAM DESIGN 50
A00 HEMMINGER W L PROGRAM DESIGN 40
A00 HEMMINGER W L PROGRAM DESIGN 60
A00 HEMMINGER W L PROGRAMMING 10
A00 HEMMINGER W L ROBOT DESIGN 60
A00 HEMMINGER W L ROBOT DESIGN 80
A00 HEMMINGER W L ROBOT DESIGN 70
A00 HEMMINGER W L ROBOT DESIGN 70
A00 HEMMINGER W L ROBOT DESIGN 60
A00 HEMMINGER W L ROBOT DESIGN 180
A00 HEMMINGER WELD LINE AUTOMATION 10
A00 HEMMINGER WELD LINE AUTOMATION 20
A00 HEMMINGER WELD LINE PLANNING 30
A00 LUCCHESSI ACCOUNT PROGRAMMING 70
A00 LUCCHESSI ACCOUNT PROGRAMMING 80
A00 LUCCHESSI ACCOUNT PROGRAMMING 80
A00 LUCCHESSI ACCOUNT PROGRAMMING 70
A00 LUCCHESSI ACCOUNT PROGRAMMING 70
A00 LUCCHESSI ACCOUNT PROGRAMMING 60
A00 LUCCHESSI ACCOUNT PROGRAMMING 60
A00 LUCCHESSI ACCOUNT PROGRAMMING 60
A00 LUCCHESSI ACCOUNT PROGRAMMING 180
A00 LUCCHESSI ACCOUNT PROGRAMMING 180
A00 LUCCHESSI ACCOUNT PROGRAMMING 180
A00 LUCCHESSI ACCOUNT PROGRAMMING 80
A00 LUCCHESSI ACCOUNT PROGRAMMING 80
A00 LUCCHESSI ACCOUNT PROGRAMMING 70
A00 LUCCHESSI ADMIN SERVICES 10
A00 LUCCHESSI APPLICATIONS SUPPORT 140
A00 LUCCHESSI APPLICATIONS SUPPORT 160
A00 LUCCHESSI DB/DC SUPPORT 140
A00 LUCCHESSI DB/DC SUPPORT 170
A00 LUCCHESSI GENERAL ADMIN SYSTEMS 10
A00 LUCCHESSI OPERATION 10
A00 LUCCHESSI OPERATION 130
A00 LUCCHESSI OPERATION 130
A00 LUCCHESSI OPERATION 130
A00 LUCCHESSI OPERATION 130
A00 LUCCHESSI OPERATION SUPPORT 10
A00 LUCCHESSI PAYROLL PROGRAMMING 60
A00 LUCCHESSI PAYROLL PROGRAMMING 80
A00 LUCCHESSI PAYROLL PROGRAMMING 70
A00 LUCCHESSI PAYROLL PROGRAMMING 180
A00 LUCCHESSI PAYROLL PROGRAMMING 80
A00 LUCCHESSI PAYROLL PROGRAMMING 70
A00 LUCCHESSI PAYROLL PROGRAMMING 60
A00 LUCCHESSI PERSONNEL PROGRAMMING 60
A00 LUCCHESSI PERSONNEL PROGRAMMING 180
A00 LUCCHESSI PERSONNEL PROGRAMMING 80
A00 LUCCHESSI PERSONNEL PROGRAMMING 80
A00 LUCCHESSI PERSONNEL PROGRAMMING 70
A00 LUCCHESSI PERSONNEL PROGRAMMING 70
A00 LUCCHESSI PERSONNEL PROGRAMMING 70
A00 LUCCHESSI PERSONNEL PROGRAMMING 60
A00 LUCCHESSI PERSONNEL PROGRAMMING 60
A00 LUCCHESSI QUERY SERVICES 10
A00 LUCCHESSI QUERY SERVICES 90
A00 LUCCHESSI QUERY SERVICES 100
A00 LUCCHESSI QUERY SERVICES 90
A00 LUCCHESSI SCP SYSTEMS SUPPORT 140
A00 LUCCHESSI SCP SYSTEMS SUPPORT 150
A00 LUCCHESSI SYSTEMS SUPPORT 10
A00 LUCCHESSI SYSTEMS SUPPORT 10
A00 LUCCHESSI USER EDUCATION 10
A00 LUCCHESSI USER EDUCATION 110
A00 LUCCHESSI USER EDUCATION 110
A00 LUCCHESSI USER EDUCATION 100
A00 LUCCHESSI USER EDUCATION 100
A00 LUCCHESSI W L PROD CONT PROGS 60
A00 LUCCHESSI W L PROD CONT PROGS 180
A00 LUCCHESSI W L PROD CONT PROGS 80
A00 LUCCHESSI W L PROD CONT PROGS 70
A00 LUCCHESSI W L PROD CONT PROGS 80
A00 LUCCHESSI W L PROGRAM DESIGN 50
A00 LUCCHESSI W L PROGRAM DESIGN 40
A00 LUCCHESSI W L PROGRAM DESIGN 60
A00 LUCCHESSI W L PROGRAMMING 10
A00 LUCCHESSI W L ROBOT DESIGN 60
A00 LUCCHESSI W L ROBOT DESIGN 80
A00 LUCCHESSI W L ROBOT DESIGN 70
A00 LUCCHESSI W L ROBOT DESIGN 70
A00 LUCCHESSI W L ROBOT DESIGN 60
A00 LUCCHESSI W L ROBOT DESIGN 180
A00 LUCCHESSI WELD LINE AUTOMATION 10
A00 LUCCHESSI WELD LINE AUTOMATION 20
A00 LUCCHESSI WELD LINE PLANNING 30
A00 O'CONNELL ACCOUNT PROGRAMMING 70
A00 O'CONNELL ACCOUNT PROGRAMMING 80
A00 O'CONNELL ACCOUNT PROGRAMMING 80
A00 O'CONNELL ACCOUNT PROGRAMMING 70
A00 O'CONNELL ACCOUNT PROGRAMMING 70
A00 O'CONNELL ACCOUNT PROGRAMMING 60
A00 O'CONNELL ACCOUNT PROGRAMMING 60
A00 O'CONNELL ACCOUNT PROGRAMMING 60
A00 O'CONNELL ACCOUNT PROGRAMMING 180
A00 O'CONNELL ACCOUNT PROGRAMMING 180
A00 O'CONNELL ACCOUNT PROGRAMMING 180
A00 O'CONNELL ACCOUNT PROGRAMMING 80
A00 O'CONNELL ACCOUNT PROGRAMMING 80
A00 O'CONNELL ACCOUNT PROGRAMMING 70
A00 O'CONNELL ADMIN SERVICES 10
A00 O'CONNELL APPLICATIONS SUPPORT 140
A00 O'CONNELL APPLICATIONS SUPPORT 160
A00 O'CONNELL DB/DC SUPPORT 140
A00 O'CONNELL DB/DC SUPPORT 170
A00 O'CONNELL GENERAL ADMIN SYSTEMS 10
A00 O'CONNELL OPERATION 10
A00 O'CONNELL OPERATION 130
A00 O'CONNELL OPERATION 130
A00 O'CONNELL OPERATION 130
A00 O'CONNELL OPERATION 130
A00 O'CONNELL OPERATION SUPPORT 10
A00 O'CONNELL PAYROLL PROGRAMMING 60
A00 O'CONNELL PAYROLL PROGRAMMING 80
A00 O'CONNELL PAYROLL PROGRAMMING 70
A00 O'CONNELL PAYROLL PROGRAMMING 180
A00 O'CONNELL PAYROLL PROGRAMMING 80
A00 O'CONNELL PAYROLL PROGRAMMING 70
A00 O'CONNELL PAYROLL PROGRAMMING 60
A00 O'CONNELL PERSONNEL PROGRAMMING 60
A00 O'CONNELL PERSONNEL PROGRAMMING 180
A00 O'CONNELL PERSONNEL PROGRAMMING 80
A00 O'CONNELL PERSONNEL PROGRAMMING 80
A00 O'CONNELL PERSONNEL PROGRAMMING 70
A00 O'CONNELL PERSONNEL PROGRAMMING 70
A00 O'CONNELL PERSONNEL PROGRAMMING 70
A00 O'CONNELL PERSONNEL PROGRAMMING 60
A00 O'CONNELL PERSONNEL PROGRAMMING 60
A00 O'CONNELL QUERY SERVICES 10
A00 O'CONNELL QUERY SERVICES 90
A00 O'CONNELL QUERY SERVICES 100
A00 O'CONNELL QUERY SERVICES 90
A00 O'CONNELL SCP SYSTEMS SUPPORT 140
A00 O'CONNELL SCP SYSTEMS SUPPORT 150
A00 O'CONNELL SYSTEMS SUPPORT 10
A00 O'CONNELL SYSTEMS SUPPORT 10
A00 O'CONNELL USER EDUCATION 10
A00 O'CONNELL USER EDUCATION 110
A00 O'CONNELL USER EDUCATION 110
A00 O'CONNELL USER EDUCATION 100
A00 O'CONNELL USER EDUCATION 100
A00 O'CONNELL W L PROD CONT PROGS 60
A00 O'CONNELL W L PROD CONT PROGS 180
A00 O'CONNELL W L PROD CONT PROGS 80
A00 O'CONNELL W L PROD CONT PROGS 70
A00 O'CONNELL W L PROD CONT PROGS 80
A00 O'CONNELL W L PROGRAM DESIGN 50
A00 O'CONNELL W L PROGRAM DESIGN 40
A00 O'CONNELL W L PROGRAM DESIGN 60
A00 O'CONNELL W L PROGRAMMING 10
A00 O'CONNELL W L ROBOT DESIGN 60
A00 O'CONNELL W L ROBOT DESIGN 80
A00 O'CONNELL W L ROBOT DESIGN 70
A00 O'CONNELL W L ROBOT DESIGN 70
A00 O'CONNELL W L ROBOT DESIGN 60
A00 O'CONNELL W L ROBOT DESIGN 180
A00 O'CONNELL WELD LINE AUTOMATION 10
A00 O'CONNELL WELD LINE AUTOMATION 20
A00 O'CONNELL WELD LINE PLANNING 30
A00 ORLANDO ACCOUNT PROGRAMMING 70
A00 ORLANDO ACCOUNT PROGRAMMING 80
A00 ORLANDO ACCOUNT PROGRAMMING 80
A00 ORLANDO ACCOUNT PROGRAMMING 70
A00 ORLANDO ACCOUNT PROGRAMMING 70
A00 ORLANDO ACCOUNT PROGRAMMING 60
A00 ORLANDO ACCOUNT PROGRAMMING 60
A00 ORLANDO ACCOUNT PROGRAMMING 60
A00 ORLANDO ACCOUNT PROGRAMMING 180
A00 ORLANDO ACCOUNT PROGRAMMING 180
A00 ORLANDO ACCOUNT PROGRAMMING 180
A00 ORLANDO ACCOUNT PROGRAMMING 80
A00 ORLANDO ACCOUNT PROGRAMMING 80
A00 ORLANDO ACCOUNT PROGRAMMING 70
A00 ORLANDO ADMIN SERVICES 10
A00 ORLANDO APPLICATIONS SUPPORT 140
A00 ORLANDO APPLICATIONS SUPPORT 160
A00 ORLANDO DB/DC SUPPORT 140
A00 ORLANDO DB/DC SUPPORT 170
A00 ORLANDO GENERAL ADMIN SYSTEMS 10
A00 ORLANDO OPERATION 10
A00 ORLANDO OPERATION 130
A00 ORLANDO OPERATION 130
A00 ORLANDO OPERATION 130
A00 ORLANDO OPERATION 130
A00 ORLANDO OPERATION SUPPORT 10
A00 ORLANDO PAYROLL PROGRAMMING 60
A00 ORLANDO PAYROLL PROGRAMMING 80
A00 ORLANDO PAYROLL PROGRAMMING 70
A00 ORLANDO PAYROLL PROGRAMMING 180
A00 ORLANDO PAYROLL PROGRAMMING 80
A00 ORLANDO PAYROLL PROGRAMMING 70
A00 ORLANDO PAYROLL PROGRAMMING 60
A00 ORLANDO PERSONNEL PROGRAMMING 60
A00 ORLANDO PERSONNEL PROGRAMMING 180
A00 ORLANDO PERSONNEL PROGRAMMING 80
A00 ORLANDO PERSONNEL PROGRAMMING 80
A00 ORLANDO PERSONNEL PROGRAMMING 70
A00 ORLANDO PERSONNEL PROGRAMMING 70
A00 ORLANDO PERSONNEL PROGRAMMING 70
A00 ORLANDO PERSONNEL PROGRAMMING 60
A00 ORLANDO PERSONNEL PROGRAMMING 60
A00 ORLANDO QUERY SERVICES 10
A00 ORLANDO QUERY SERVICES 90
A00 ORLANDO QUERY SERVICES 100
A00 ORLANDO QUERY SERVICES 90
A00 ORLANDO SCP SYSTEMS SUPPORT 140
A00 ORLANDO SCP SYSTEMS SUPPORT 150
A00 ORLANDO SYSTEMS SUPPORT 10
A00 ORLANDO SYSTEMS SUPPORT 10
A00 ORLANDO USER EDUCATION 10
A00 ORLANDO USER EDUCATION 110
A00 ORLANDO USER EDUCATION 110
A00 ORLANDO USER EDUCATION 100
A00 ORLANDO USER EDUCATION 100
A00 ORLANDO W L PROD CONT PROGS 60
A00 ORLANDO W L PROD CONT PROGS 180
A00 ORLANDO W L PROD CONT PROGS 80
A00 ORLANDO W L PROD CONT PROGS 70
A00 ORLANDO W L PROD CONT PROGS 80
A00 ORLANDO W L PROGRAM DESIGN 50
A00 ORLANDO W L PROGRAM DESIGN 40
A00 ORLANDO W L PROGRAM DESIGN 60
A00 ORLANDO W L PROGRAMMING 10
A00 ORLANDO W L ROBOT DESIGN 60
A00 ORLANDO W L ROBOT DESIGN 80
A00 ORLANDO W L ROBOT DESIGN 70
A00 ORLANDO W L ROBOT DESIGN 70
A00 ORLANDO W L ROBOT DESIGN 60
A00 ORLANDO W L ROBOT DESIGN 180
A00 ORLANDO WELD LINE AUTOMATION 10
A00 ORLANDO WELD LINE AUTOMATION 20
A00 ORLANDO WELD LINE PLANNING 30
365 record(s) selected.
是否可以从第3列中删除重复信息？ 顺便说一下，我正在使用db2和Sample数据库。
PS：第三次在这里发帖，目前是使用db2的新手。