I have 5 tables like below and need to create a master calendar.

[harish_meda]

I have 5 tables like below and need to create a master calendar.

Knowledge:
KnowledgeIDKey,
"Knowledge.Create Date/Time"

KnowledgeFeedback:
"KnowledgeFeedback. Create Date/Time"
KnowledgeIDKey,
ArticleUserKey

KnowledgeUSe:
"KnowledgeUse.Create Date/Time"
ArticleUserKey

KnowledgeTask:
"KnowledgeTask.Create Date/Time"
KnowledgeIDKey,
TicketKey

Ticket:
TicketKey,
"Ticket.Create Date/Time"

[harish_meda]

I have 5 tables like below and need to create a master calendar.

Knowledge:
KnowledgeIDKey,
"Knowledge.Create Date/Time"

KnowledgeFeedback:
"KnowledgeFeedback. Create Date/Time"
KnowledgeIDKey,
ArticleUserKey

KnowledgeUSe:
"KnowledgeUse.Create Date/Time"
ArticleUserKey

KnowledgeTask:
"KnowledgeTask.Create Date/Time"
KnowledgeIDKey,
TicketKey

Ticket:
TicketKey,
"Ticket.Create Date/Time"

[rwunderlich]

You will want to create a link table to link all your tables to a single calendar. Take a look at this tutorial for details. 

Qlikview Cookbook: Tutorial - Using Common Date Dimensions https://qlikviewcookbook.com/recipes/download-info/tutorial-using-common-date-dimensions/

-Rob