BEGIN TRANSACTION
GO
CREATE TABLE dbo.ext_user_card_number_import (
	user_name varchar(50) NOT NULL,
	card_number varchar(100) NOT NULL
	)
GO
ALTER TABLE dbo.ext_user_card_number_import ADD CONSTRAINT PK_ext_user_card_number_import PRIMARY KEY CLUSTERED (user_name)

GO
CREATE UNIQUE NONCLUSTERED INDEX IX_ext_user_card_number_import_card ON dbo.ext_user_card_number_import (card_number)
GO
COMMIT