SQL Logic to validate Parameter - sql-server

Question

I have parameter on sql , and I got an issue when it comes to this situation
declare #MonRemark varchar(10) = 's'
declare #ConfBy varchar(10)= 's'
declare #confstatus varchar(10)= 's'
declare #StatGD varchar(10)= ''
declare #StatGC varchar(50)= ''
declare #STATGTWO varchar(50)= ''
IF #MonRemark <> '' and (#ConfBy = '' OR #confstatus = '' and (#StatGD = '' or #StatGC = '' or #STATGTWO = '')) BEGIN
print 'a'
END
ELSE IF #ConfBy <> '' and (#MonRemark = '' OR #confstatus = '' AND (#StatGD = '' or #StatGC = '' or #STATGTWO = '')) BEGIN
print 'b'
END
ELSE IF #confstatus <> '' and #MonRemark = '' AND #ConfBy = '' AND (#StatGD = '' or #StatGC = '' or #STATGTWO = '') BEGIN
print 'c'
END
ELSE IF (#StatGD <> '' or #StatGC <> '' or #STATGTWO <> '') and #confstatus = '' AND #MonRemark = '' AND #ConfBy = '' BEGIN
print 'd'
END
ELSE BEGIN
print 'e'
END
if I filled parameter like what I write Above, I wish to get A , but it's always print E, is there any way to get A?

Answer 1

Change your condition. I think #Cyan and #JTR has provided enough explanation on why you get the value 'e'
Try like this, I have modified your condition to get the required results.
DECLARE #MonRemark VARCHAR(10) = 's'
DECLARE #ConfBy VARCHAR(10) = 's'
DECLARE #confstatus VARCHAR(10) = 's'
DECLARE #StatGD VARCHAR(10) = ''
DECLARE #StatGC VARCHAR(50) = ''
DECLARE #STATGTWO VARCHAR(50) = ''
IF #MonRemark <> ''
AND (
(
#ConfBy = ''
OR #confstatus = ''
)
OR (
#StatGD = ''
OR #StatGC = ''
OR #STATGTWO = ''
)
)
BEGIN
PRINT 'a'
END
ELSE IF #ConfBy <> ''
AND (
#MonRemark = ''
OR #confstatus = ''
AND (
#StatGD = ''
OR #StatGC = ''
OR #STATGTWO = ''
)
)
BEGIN
PRINT 'b'
END
ELSE IF #confstatus <> ''
AND #MonRemark = ''
AND #ConfBy = ''
AND (
#StatGD = ''
OR #StatGC = ''
OR #STATGTWO = ''
)
BEGIN
PRINT 'c'
END
ELSE IF (
#StatGD <> ''
OR #StatGC <> ''
OR #STATGTWO <> ''
)
AND #confstatus = ''
AND #MonRemark = ''
AND #ConfBy = ''
BEGIN
PRINT 'd'
END
ELSE
BEGIN
PRINT 'e'
END