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
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2 | | | Dado
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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?