How to join the tables when there is no matching point and related keys?

What r the defferent types of dimension tables?how can we join the table if they have no matching point and related keys?

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sreedhar

  • May 27th, 2006
 

it is very simple generate numbers by using sq _ trsfms for both tbls and perform the fjoins

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Manas

  • Jun 2nd, 2006
 

Anothe approch would be... create one dummy fileld by an expression in both. Then join the two using the dummy field.

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kareemuddin ahmed

  • Jun 24th, 2006
 

what is junk dimeasion?

Motilal

  • Jun 30th, 2006
 

There are many types of dimension tables.

Till now there have no particular type of classification.

You can find them in "Datawarehousing Toolkit" by Ralf Kimphbell.

Some of them are,-Confirmed, Junk, Degenerated, Time, Demographic, Slowly Changing, Rapidly Changing, etc.. around 16 types are there.

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For such type of Join we can use INNER JOIN, The best example for this is when we fetch data from a flat file source and the date for which the data has to be fetched is taken from a table known as job control table, which is in database so usiing the inner join we can not only join two tables but two different structures of tables also..

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