What is the difference between publish by value and publish by reference?

Submitted by: Administrator
In publish by value, all the data will be copied from main
table to P table..where as in publish by reference only the
reference will be copied.
Submitted by: Administrator

In publish by value data would be copied to from main table to secondary table and and data coped from main table is picked. Where as in Publish by reference data is picked from secondary table.
Submitted by: Vinod

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