When is usage of semicolon necessary?

Semicolon is used as a statement terminator in almost all RDBMSs. However the usage of semicolon is optional in SQL Server except for few cases. Here are at least three cases where usage of semicolon is a must

1 At the start of the Common Table Expression (If any statement precedes it)

2 If the procedure name is GO ,to execute it use at the end of GO

Let us create this stored procedure with Batch separator GO

use tempdb

GO

CREATE PROCEDURE GO
as
select 10 as number 

Now execute the procedure

GO

Nothing happens

Now execute it with semicolon

GO;

The result is 10

3 At the end of Merge statement

Let me know if it is required in any other cases.

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