tinyint function
Applies to: 
Databricks SQL Databricks Runtime
Casts expr to TINYINT. This function is a synonym for CAST(expr AS TINYINT). See cast function for details.
Syntax
tinyint(expr)
Arguments
expr: Any expression which is castable to TINYINT.
Returns
The result is TINYINT.
Examples
SQL
> SELECT tinyint('12');
12
> SELECT tinyint(5.4);
5