Translate Abfrageklausel from German to English

– The combination of an expression (or query subclause) and its adjacent logical operator. It is modeled on the WHERE clause of a SQL statement and contains Field Name, operator, and value. ¹

– A single clause of a query expression. There are several different query clauses, each identified by its initiating query keyword. For instance, the "from/From clause" refers to clauses like "From c In customers" in Visual Basic, or "from c in customers" in C#. ¹