Why does is think the column is the parameter value

Question

I get SQLite.SQLiteException: \'no such column: osborne\' when I run this code. osborne is my search term, not the column. The column is LastName. Here is the queryasync code

Answer 1

you need to delimit string parameters in SQL queries

return Database.QueryAsync
    ($"SELECT * FROM [DataItem] WHERE [LastName] = '{s}'");
 

as pointed out in the comments, parameterized queries are more secure

return Database.QueryAsync
    ("SELECT * FROM [DataItem] WHERE [LastName] = ?", s);