22.09

1.
DECLARE @start int = 0
DECLARE @finish int = 5
DECLARE @current int = @start
DECLARE @result nvarchar(500) = ''
WHILE @current < @finish
BEGIN
	SET @result += '*'
  	SET @current += 1
END
PRINT @result

2.
DECLARE @start int = 2
DECLARE @finish int = 1000000
WHILE @start <= @finish
BEGIN
	DECLARE @prime_num bit = 1;
	DECLARE @current int = 2;
	WHILE @current <= SQRT(@start)
	BEGIN
		IF @start % @current = 0
		BEGIN
			SET @prime_num = 0
			BREAK
		END
		SET @current += 1
	END
	IF @prime_num = 1
		PRINT CAST(@start AS int)
	SET @start += 1
END