WEBVTT

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in this video we are discussing pig

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latin data model we know that pig latin

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is the high-level language which is

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available with pig

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so pig latin data model we are going to

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discuss we shall discuss it with one

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diagram and some explanations just

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consider this diagram so here you are

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having the bag and we are having that

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tupple you can find that this is this

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row will be known as a couple and this

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is a bag so bag is consisting of

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multiple tuples and here it is a field

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and there is a filled value so that data

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model of pig latin the data model of pig

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latin is fully nested and it allows

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complex non atomic data types so this

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pig latin data model supports complex

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non atomic data types what are they so

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they can be a map and at Apple you can

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find that this is at Apple and then what

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is the map map means collection of

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key-value pairs and that map and tableau

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can be considered as complex non had to

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make data types so the above is the

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diagrammatic representation of piglet

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ins data model so let us discuss all

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these terminologies one by one so at

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first we are starting with this atom a

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single value in pig latin the

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irrespective of the data is known as

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atom so atom stores as a string and this

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can be used as string and number so atom

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is the single value at a time and it can

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be it will be stored in the form of

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string and can be operated as a string

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or in number a piece of data or a simple

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atomic value is known as a field as an

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example ashame can be considered as an

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atom next we are going for the tupple

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now what is the tupple a record which is

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formed by an ordered set of fields is

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known as a topple so you can find that

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this this atomic value is also known as

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a field and then order set of fields

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will form one tupple

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as an example you can consider or shem

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comma 25 is an example of a tuple next

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we are going for the bag the collection

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of tuples will be known as a bag and

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each tuple can have any number of fields

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a bag is represented within curly braces

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a bag will be represented within curly

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braces as an example we can consider

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that within curly braces were having one

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tupple that is a shim comma 25 another

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tuple

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Rahul comma 30 another tuple hawisher

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command 23 so bag is nothing but

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collection of tuples and should be

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enclosed within curly braces next one we

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are going for this map a map or data map

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is a set of key value pairs it is a set

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of key value pairs the key needs to be

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of type character array and should be

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unique the key who should have some

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unique values there and the value might

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be of any type and it can be represented

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or it should be represented within

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square brackets you can find that as an

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example name number is head awesome and

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each number is our 25 and it has been

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enclosed within third brackets within

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the square brackets that means it is

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representing our map here

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so map is nothing but collection of key

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value pairs

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he will have the distinct values and

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values can have of different data types

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next one we are having the relation now

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what is a deletion a deletion is a bag

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of tuples and the deletions in pig latin

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are unordered and there is no guarantee

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that tuples are processed in any

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particular order and that is known as a

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relation so the relation is a bag of

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tuples actually so now this is the

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concept and this is the piglet in data

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model and we have discussed all the

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respective terminologies in the more

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details for your better understanding

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thanks for watching this video