Create a view with a self populating column

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Create a view with a self populating column

Summer90

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Points: 32891
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July 22, 2013 at 9:16 am

#276224

Have a strange request from the apps folks. Here is what they want:
We have three SQL Server databases with the same table and columns but the data within the tables belongs to different company/entities. They are going to pull out that data and put it into an Oracle database but once they get it into the Oracle database there is no way to know which rows came from which database. So, they want to create a view on these specific tables and have a self populating column in the view that has the database name in it. Then the Oracle DB will have the name DB_Origin and will then be populated with that name so they will be able to tell which SQL Server DB that data came from. How would I construct that view?
As an Example this is what the table looks like in Database Name WEN01:
Date
Item
Sales
View would be:
Date
Item
Sales
WEN01 hardcoded

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Sean Lange SSC Guru Points: 286590 More actions · Answer 1

Like this?

select Date, Item, Sales, 'WEN01' as SomeColumn

from SomeTable

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ChrisM@Work SSC Guru Points: 186127 More actions · Answer 2

or this?

select Date, Item, Sales, db_NAME() as SomeColumn

from SomeTable

^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}

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Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

Summer90 SSC-Dedicated Points: 32891 More actions · Answer 3

Jeesh... thanks gang..... it is simple... I was just thinking too hard about it. Got it.