Error using semicolon in Azure SQL Server

Question

I use Microsoft SQL Azure (RTM) - 12.0.2000.8 Nov 29 2017 09:37:51 Copyright (C) 2017 Microsoft Corporationwith compatibilty_level = 120 and when I run this request

ALTER PROCEDURE SPCreateSession3
@a int,
@b int
AS
select count(*) as a from events where IDevent > @a;
select count(*) as b from sessions where IDsession > @b;
GO
exec SPCreateSession3 1, 1

This gives me an error Must declare the scalar variable @b. Without a semicolon, it works fine. It seems to ;contain some command GO. Then why did many people suggest here that it ;will never cause any problems. I need a semicolon because I use the MERGE command in reality, which is required ;. Also, if I complete queries in a BEGIN Block, for example

ALTER PROCEDURE SPCreateSession3
@a int,
@b int
AS
BEGIN
select count(*) as a from events where IDevent > @a;
select count(*) as b from sessions where IDsession > @b;
END
GO
exec SPCreateSession3 1, 1

sql incorrect syntax near ;. - . - , ? , - ?

:

Answer 1

Microsoft SQL Operations Studio Linux MAC. . Operations Studio.

SQL Server Management Studio - , . Microsoft SQL Operations Studio.

Answer 2

Azure. T-SQL (). (), , , . , GO; .