WEBVTT

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In this video we are discussing
Pig Latin data model

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We know that Pig Latin is a high-level
language which is available with Pig

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So, Pig Latin data model we are going to discuss. We
shall discuss it with one diagram and some explanations

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Just consider this diagram. So here we are
having the bag and we are having the tuple

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You can find that this is this row will
be known as a tappel. And this is a bag

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So bag is consisting of multiple tuples. here
it is a field and there is a field value

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So the data model of pig Latin, the data model
of peak Latin is fully nested and it allows

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complex non-atomic data types. So this Pig Latin
data model supports complex non-atomic data types

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What are they? So they can be a map and a tipple. You
can find that this is a tipple and then what is a map

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Map means collection of key value pairs. that map and double can be
considered as complex non-atomic data types. So the above is the

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diagrammatical representation of P.Glatin's
data model. So let us discuss all these

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terminology is one by one. So at first we are
starting with this atom. A single value in

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P-Gillatin irrespective of the data is known
as atom. So atom stores as a string and this

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can be used as string and number. So, atom
is a single value at a time and it can be

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it will be stored in the form of string
and can be operated as a string or a number

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A piece of data or a simple atomic value is
known as a field. As an example, a shame can

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be considered as an atom. Next, we are going
for the tapple. Now, what is a tappell? A record

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which is formed by an ordered set
of fields is known as a tappel

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So you can find that this atomic value is also known as a field and then ordered set of
fields will form one tuple as an example you can consider or shim comma 25 is an example

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of a tuple next we are going for the bag the
collection of tuples will be known as a bag

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and each tuple can have any number of fields
a bag is represented within curly braces

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a bag will be represented within corley braces
as an example we can consider that within

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carly braces were having one tuple that
is a shim comma 25 another tappell Rahul

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30 another topple hovishek comma 23 so bag is
nothing but collection of tuples and should

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be enclosed within curly braces next one we are
going for this map a map or data map is a set of

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key value pairs it is a set of key value
pairs the key needs to be of type character

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array and should be unique. The key should have
some unique values there. And the value might be

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of any type and it can be represented or it
should be represented within square brackets

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You can find that as an example, name number
is head or sheim and age number is our 25

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And it has been enclosed within third brackets,
within the square brackets. That means it is

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representing a map here. So map is nothing but collection of key value pairs,
key will have the distinct values and values can have of different data types

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Next one we are having the relation. Now, what
is a deletion? A relation is a bag of tuples

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and the relations in pig latin are unordered and
there is no guarantee that tuples are processed

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in any particular order and that is known as
a relation. So the relation is a bag of tuples

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actually. So, now this is the concept and
this is the Pig Latin data model and we have

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discussed all the respective terminologies into
more details for your better understanding

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Thanks for watching this video