Empty column record affects query time performance

0

Let's say I have a table with 4 columns and 4 records. Not all columns are filled at the time of the form because it is not mandatory, so the database has some gaps in its grid! Example:

ID | Item1 | Item2 | Item3
---------------------------
1  |  Dado |       | Dado
---------------------------
2  |       |       | Dado
---------------------------
3  |  Dado |  Dado | Dado
---------------------------
4  |       |  Dado | 
---------------------------
  

My question is:

     
    

Can this "void" in records affect performance in some way at the time of database query?

  
    
asked by anonymous 04.09.2016 / 15:11

0 answers