I just found an SQL-Statement with a syntax I never seen before. And I found nothing in the internet about this syntax. Does anybody knows what [field] means?
SELECT 'Customer' AS Tablename
, [Ct_ID] AS ID
, [Ct_Name] AS Name
In MS TransactSQL (aka SQL Server), square brackets are used around field names that would otherwise not be valid (reserved words, names with spaces or other special characters).