# Newbie - Nested If statements in stored procedure syntax?

What would a nested if statement look like in a stored procedure:

01 If A
02     If B
03        Let x = x + 1
04     Endif B
05     Let y = y + 1
06     Else A
07      If C
08          If D
09              Let z = z + 1
09          Else D
10              Let z = z - 1
11          End D
12      Let ab =  ab + 1
13      End C
14    End A

The original VBA code nests to 9 levels.
###### Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Software Applications Developer / IntegratorCommented:
something like the following

IF A
BEGIN
IF B
BEGIN
SET x = x + 1
END
SET y = y + 1

END
IF NOT A
BEGIN
IF C
BEGIN
IF D
BEGIN
SET z = z + 1
END
IF NOT D
BEGIN
Set z = z - 1
END
SET ab = ab + 1
END
END
0

Experts Exchange Solution brought to you by

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Commented:
The important thing to note that there is no "end if" as in other languages.  And the use of "IF" means that if the condition is met, then execute the NEXT COMMAND.  If the NEXT COMMAND is a begin, then it treats that as a code block and executes until the matching END.

Let's look at these two examples.

In example 1, @b will ONLY be set to 2 if @a=1, but @c will be set to 3 regardless because the condition "if @a=1" only determines whether the "set @b=2" is executed
--example 1
If @A=1
set @b=2
set @c=3

In this example, both set operations will be executed because they exist inside of a begin/end block.
--example 2
if @A=1
begin
set @b=2
set @c=3
end

In this example, either @b will be set to 2, or @c will be set to 3.  Both lines will not be executed.
--example 3
if @a=1
set @b=2
else
set @c=3

In this example.  If @a=1, then @b will be set to 2.  If @a is not equal to 1, then @b will be set to 123, and @c to 3.
--example 4
if @a=1
set @b=2
else
begin
set @b=123
set @c=3
end

--end examples

Hope this clears up how to nest if/else statements
0
###### It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Query Syntax

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.