LINQ is just an interface, you need some sort of an implementation below it (be it the unmaintained LINQ-to-SQL that AFAIK nobody should be using anymore, or the latest EF rewrite).
It's also the first thing I recommend to anyone claiming that concatenating SQL strings together is a good use of your time in the 21st century. Makes writing things like complex HTML tables with configurable columns and tons of optional filters so much faster and more maintainable.
It's also the first thing I recommend to anyone claiming that concatenating SQL strings together is a good use of your time in the 21st century. Makes writing things like complex HTML tables with configurable columns and tons of optional filters so much faster and more maintainable.