Function repeat_sql_values 

pub fn repeat_sql_values(count: usize) -> impl Display

Returns a value that formats as count instances of (?) separated by commas.

Example

assert_eq!(format!("{}", repeat_sql_values(0)), "");
assert_eq!(format!("{}", repeat_sql_values(1)), "(?)");
assert_eq!(format!("{}", repeat_sql_values(2)), "(?),(?)");
assert_eq!(format!("{}", repeat_sql_values(3)), "(?),(?),(?)");