How can INSERT INTO a table 300 times within a loop in SQL?

Question

I would like to insert a value retrieved from a counter in SQL and repeat it 300 times.

Something like:

DECLARE @Counter = 0;

-- BEGIN Loop 
    SET @Co         


        

Answer 1

I would prevent loops in general if i can, set approaches are much more efficient:

INSERT INTO tblFoo
  SELECT TOP (300) n = ROW_NUMBER()OVER (ORDER BY [object_id]) 
  FROM sys.all_objects ORDER BY n;

Demo

Generate a set or sequence without loops