How this is going on? [GunzDB]

[jin5561]

IF NOT EXISTS (SELECT * FROM sys.database_principals WHERE name = N'game')
CREATE USER [game] FOR LOGIN [game] WITH DEFAULT_SCHEMA=[game]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[fnGetMax]') AND type in (N'FN', N'IF', N'TF', N'FS', N'FT'))
BEGIN
execute dbo.sp_executesql @statement = N'

Message 1785, Level 16, State 0, Line 2
FOREIGN KEY constraint will be 'FK__RentCashS__CSSID__1EF99443' the introduction of table 'RentCashSetShopPrice' may lead to the cycle or multiple cascade paths. Specify ON DELETE NO ACTION or ON UPDATE NO ACTION, or modify other FOREIGN KEY constraints.
Message 1750, Level 16, State 0, Line 2
Could not create constraint. Please refer to the previous error message.
Message 1785, Level 16, State 0, Line 2
FOREIGN KEY constraint will be 'FK__RentCashSh__CSID__22CA2527' the introduction of table 'RentCashShopPrice' may lead to the cycle or multiple cascade paths. Specify ON DELETE NO ACTION or ON UPDATE NO ACTION, or modify other FOREIGN KEY constraints.
Message 1750, Level 16, State 0, Line 2
Could not create constraint. Please refer to the previous error message.

[MentaL]

[NarutoUzamaki]

Best tutorial ever!