Language Elements (Transact-SQL)

Applies to: SQL Server (all supported versions) Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW)

SQL Server supports the following language elements.

In This Section

-- (Comment) (Transact-SQL)

Slash Star (Block Comment) (Transact-SQL)

CREATE DIAGNOSTICS SESSION (Transact-SQL)

NULL and UNKNOWN (Transact-SQL)

Transactions (Azure Synapse Analytics)

USE (Transact-SQL)