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Rewrite 1& 2 do not change the meaning of this 1.Most of the data verbs operate

ID: 3590288 • Letter: R

Question

Rewrite 1& 2 do not change the meaning of this

1.Most of the data verbs operate on a single data table as
input. The join verbs, however, combine two data tables.
Since only one can be passed into the verb by the chaining
syntax, the other must be included as an argument inside
the parentheses

2.Not all the cases in the demographics table are contained
in the geographic table, and there are cases in the geographic
table that are not in the demographic table. For
instance, Åland is in the geographic table but not in demographics.
Akrotiri is in the demographics but not in
the geographic table. You wouldn’t want to combine the
location of Åland with the demographics of Akrotiri!
One of the purposes of the join family of data verbs is
to handle such missing or extra cases in the tables being
combined.

Explanation / Answer

1.

The data verbs mostly be operated as a sigle input to the data table. Even though there are join verbs which combines two data tables we can only pass one to the verb through the chaining syntax and the other we need to give it as an argument inside paranthesis.

2.

In some cases demographics table will be in geographic but the vice versa will not happen. For example we have some instances like Aland which is not in demographic but actually in geographic and another one Akrotiri which actually resides in the demographic but not in geographic. In that cases we shouldn't join these two Aland and Akrotiri because the main purpose of the join family of data verbs is to maintain and to take care about these missing and extra cases in the tables which needed to be combined.

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