In SQLite a NUL is nothing. Inserting a NUL into a column defined as Integer 
for example creates a zero length entry not an Integer of value zero.

How do traditional databases with static typing deal with this?
Do they check the column delaration and convert the NUL to a zero value upon 
entry?

How does SQLite handle sorting with a column that contains values (including 
zero) and NULs? Are the NULs converted to zero for the purposes of sorting?

       
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