How to use a dimension from another view in Looker?

We can use a substitution operator ($) to reference dimensions and measures from other views in LookML.

Consider the following code where we have two views, example_A and example_B .  

############################################

View: example_A { 

sql_table_name: xyz ;;

dimension: field_A {
type: number
sql: ${TABLE}.id ;;
}

######################################

View: example_B {

 sql_table_name: abc ;;

dimension: field_B {
type: number
sql: ${TABLE}.id ;;
}

dimension: field_from_example_A {
type: number
sql: ${example_A.field_A} ;;

}

############################################

As you can see, the view example_B has a field called field_from_example_A, which is referencing field_A from example_A by using the substitution operator ($) as ${example_A.field_A} . 

Please note : Both the views should be joined in a common Explore to reference fields from each other.

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