database - Are less tables better than more? -

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I am implementing a small time tracking app and I can not decide between two database designs.

First of all there are all log entries in the table, that is, 

  Timelapse ------------- job_id: Long timestamp start: Boolean [or perhaps' other option should be kept in two tables, for 'stop' entries One of the 'start' entries for the other.  
   
 Code> Startlag Stoplog ------------- ------------- job_id: Long job_id: long timestamp timestamp ID: long ID: long  
 
 What are the pros and cons of each approach? Is there any other option? 
 
 My specific application will be running on SQLite and I want to optimize it for speed - but I am interested in general arguments.

I go to the first (single-table, type-differentiated) design, especially not because much There are all tables, but only because of database institutions are very similar and there will be equal obstacles and operations.


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