SQL Server Data Base Design Date Time

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Hi everyone, I need some help here
Background:

My DB need to store YYYY-MM-DD and HH:MM:SS data generated from a Machine. Data will be inserted every few minutes, every day will have Thousands of records

Questions:

Should I separate Date column into another table with DateID and DateName??

What about time? HH:MM:SS, should it be another table or just a column???

How about query performance?? Should I index Date and Time Column with FK????

What's the best pratices for Date and Time stamp??

Thanks for your help in advance.

Posted 22-May-14 11:10am

Member 10689667

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2 solutions

Solution 2

use datetime or datetime2 [^] and you can create index on datetime column to increase the performance.
http://explainextended.com/2009/11/11/sql-server-clustered-index-and-ordering/[^]

Posted 22-May-14 17:12pm

DamithSL

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Maciej Los · Accepted Answer · 2014-05-22T11:28:00

Solution 1

The answer is: No! (for separating Date into another table and Time for another table!)

Use one table and proper data type[^] (datetime, datetimeoffset).

Posted 22-May-14 11:28am

Maciej Los

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Member 10689667 22-May-14 17:39pm

@Maciej Los
Great, thank you, but how about query performance?? it will insert data every few minutes, Should I index Date Column??? I just worry about query performance for user.

Maciej Los 23-May-14 1:41am

It's good idea to indexing this field.

Member 10689667 23-May-14 9:12am

Thanks @Maciej Los, Index the DATE Column?? But could you estimate how much it would affect on query performance? Bec index is good for SELECT, but not good for INSERT, and it will insert every few minutes, would it necessary to index??

[no name] 24-May-14 20:06pm

@Maciej guilty for another five