`1.sql

DECLARE @date int=22
IF @date>12
BEGIN
 PRINT 'Hello!'
 END
 ELSE 
 BEGIN 
 PRINT 'Good evning'
 END
--2
DECLARE @num int =10
DECLARE @nn int =10
DECLARE @n int =0
WHILE @n<=@num 
BEGIN
 SET @n=+1
 SET @num=@num*(@nn-@n)
 END
--3
DECLARE @line nvarchar(50)='dad'
IF @line=REVERSE(@line)
BEGIN 
PRINT 'Yes'
END
ELSE
BEGIN
PRINT 'No'
END