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Working on normalization of our existing database - we have too many columns in a table which are empty
Working on normalization of our existing database - we have too many columns in a table which are empty?
a) Does this situation harm performance
b)Or just take space
c) What would be the fix? Is it to move such columns to other secondary tables and have 1:1 relation.
a) Does this situation harm performance
b)Or just take space
c) What would be the fix? Is it to move such columns to other secondary tables and have 1:1 relation.
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I Agree with wpcortes. A table with lots of columns, only comes in handy as a calculated table (ie a View). For instance a table you fill up once a day and drop and recreate the following day.
Greetings.
Greetings.
So, the tip here is: understand your model, then take a decision.