It_Support_Specialists

idnameexperience
1John Doe3
2Jane Smith2
3Michael Johnson10
4Emily Davis6
5David Brown8

Systems

system_idsystem_nameis_active
1Windows1
2Linux0
3MacOS1
4Android1
5iOS1

It_Support_Specialists_Systems

it_specialist_idsystem_id
(→ It_Support_Specialists.id)(→ Systems.system_id)
11
21
31
41
51
54

Companies

company_idcompany_namelocation
1Company ANew York
2Company BSan Francisco
3Company CChicago
4Company DLos Angeles
5Company EBoston