bu cümlenin sql karşılığı nedir ?

bir banka veritabanı düşünün, bankaya yeni müşteri eklendiği zaman hesap türünü vadesiz hesap bakiyesinide 0 olarak ayarlayan kodu trigger olarak yazınız.

tablo1 = musteriler musteri id / musteriadsoyad
tablo 2 = hesaplar musteri id / hesap turu
tablo 3 = bakiyeler musteri id / bakiye

Tablon ve ilişkileri böyle mi olacak?

evet hocam

Merhaba
2 kod kümesi
Örnek DB:

USE [denemeDB]
GO
/****** Object:  Table [dbo].[bakiyeler]    Script Date: 23.01.2018 07:41:43 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[bakiyeler](
    [hesaplarid] [int] NOT NULL,
    [musterilerid] [int] NOT NULL,
    [bakiye] [float] NOT NULL
) ON [PRIMARY]
GO
/****** Object:  Table [dbo].[hesaplar]    Script Date: 23.01.2018 07:41:43 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[hesaplar](
    [id] [int] IDENTITY(1,1) NOT NULL,
    [musterilerid] [int] NOT NULL,
    [hesapturu] [nvarchar](50) NOT NULL,
 CONSTRAINT [PK_hesaplar] PRIMARY KEY CLUSTERED 
(
    [id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
/****** Object:  Table [dbo].[musteriler]    Script Date: 23.01.2018 07:41:43 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[musteriler](
    [id] [int] IDENTITY(1,1) NOT NULL,
    [ad] [nvarchar](50) NOT NULL,
    [soyad] [nvarchar](50) NOT NULL,
 CONSTRAINT [PK_musteriler] PRIMARY KEY CLUSTERED 
(
    [id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
ALTER TABLE [dbo].[bakiyeler] ADD  CONSTRAINT [DF_bakiyeler_bakiye]  DEFAULT ((0)) FOR [bakiye]
GO
ALTER TABLE [dbo].[hesaplar] ADD  CONSTRAINT [DF_hesaplar_hesapturu]  DEFAULT (N'vadesiz') FOR [hesapturu]
GO
ALTER TABLE [dbo].[bakiyeler]  WITH CHECK ADD  CONSTRAINT [FK_bakiyeler_hesaplar] FOREIGN KEY([hesaplarid])
REFERENCES [dbo].[hesaplar] ([id])
ON DELETE CASCADE
GO
ALTER TABLE [dbo].[bakiyeler] CHECK CONSTRAINT [FK_bakiyeler_hesaplar]
GO
ALTER TABLE [dbo].[bakiyeler]  WITH CHECK ADD  CONSTRAINT [FK_bakiyeler_musteriler] FOREIGN KEY([musterilerid])
REFERENCES [dbo].[musteriler] ([id])
GO
ALTER TABLE [dbo].[bakiyeler] CHECK CONSTRAINT [FK_bakiyeler_musteriler]
GO
ALTER TABLE [dbo].[hesaplar]  WITH CHECK ADD  CONSTRAINT [FK_hesaplar_musteriler] FOREIGN KEY([musterilerid])
REFERENCES [dbo].[musteriler] ([id])
ON DELETE CASCADE
GO
ALTER TABLE [dbo].[hesaplar] CHECK CONSTRAINT [FK_hesaplar_musteriler]
GO
/****** Object:  Trigger [dbo].[tgBakiyeOlustur]    Script Date: 23.01.2018 07:41:43 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE trigger [dbo].[tgBakiyeOlustur] on [dbo].[hesaplar]   --1
for insert    --2
as begin     --3
declare @musterilerid int = (Select i.musterilerid from inserted as i)
insert into bakiyeler (musterilerid,hesaplarid,bakiye) values (@musterilerid,@@IDENTITY,0) --4
end    --5

GO
/****** Object:  Trigger [dbo].[tgHesapOlustur]    Script Date: 23.01.2018 07:41:43 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
create trigger [dbo].[tgHesapOlustur] on [dbo].[musteriler]   --1
for insert    --2
as begin     --3
insert into hesaplar (musterilerid,hesapturu) values (@@IDENTITY,'vadesiz') --4
end    --5

GO

Sadece Trigger ler:

GO
/****** Object:  Trigger [dbo].[tgBakiyeOlustur]    Script Date: 23.01.2018 07:41:43 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE trigger [dbo].[tgBakiyeOlustur] on [dbo].[hesaplar]   --1
for insert    --2
as begin     --3
declare @musterilerid int = (Select i.musterilerid from inserted as i)
insert into bakiyeler (musterilerid,hesaplarid,bakiye) values (@musterilerid,@@IDENTITY,0) --4
end    --5

GO
/****** Object:  Trigger [dbo].[tgHesapOlustur]    Script Date: 23.01.2018 07:41:43 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
create trigger [dbo].[tgHesapOlustur] on [dbo].[musteriler]   --1
for insert    --2
as begin     --3
insert into hesaplar (musterilerid,hesapturu) values (@@IDENTITY,'vadesiz') --4
end    --5

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