An even shorter syntax using a method group: `Array.ForEach(Directory.GetFiles(@"c:\MyDir\"), File.Delete);`

@Avishai: (Fully functional) syntax shorthand with positional references, short for `GROUP BY neighborhood, bedrooms`

Put a square brackets around Group. Group is a reserved name so a syntax error is occurring.

`group` is a keyword in most of databases, so change its name to phonesGroup or something else.

Group is a reserved word in SQL Syntax (Group By). Try to put the name into backticks like you did in the insert statement.