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Cascade update

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I have made an little database, can someone help me
to give an little cascade update script for mine database..

create table Boektypen (
bkt_BoektypeID integer not null,
bkt_Boektypenaa m varchar(35) not null,
bkt_Jeugdgeschi kt bit,
primary key (bkt_BoektypeID ))

go

create table Boeken (
bkn_Titel varchar(40) not null unique,
bkn_ISBN varchar(12) not null unique,
bkn_TypeID integer not null,
primary key (bkn_ISBN),
foreign key (bkn_TypeID)
references Boektypen)

go

create table Personen (
prs_Lidnummer numeric(10) not null unique,
prs_Naam varchar(40) not null,
prs_Initialen varchar(10) null,
prs_Voorvoegsel varchar(15) null,
prs_Geboortedat um datetime not null,
primary key (prs_Lidnummer) )

go

create table Boetegegevens (
btg_Boetebedrag numeric(3,2) not null,
btg_Maximaleuit leentermijn numeric(3) not null)

go

create table Uitleningen (
utl_Lidnummer numeric(10,0) not null,
utl_ISBN varchar(12)not null,
utl_Uitleendatu m datetime not null,
utl_Terugbezorg datum datetime null,
utl_Boete numeric(3,2),
foreign key (utl_Lidnummer)
references Personen,
foreign key (utl_ISBN)
references Boeken)

go

create table Bibliotheekmede werkers (
bmw_Code char(3) not null,
bmw_Medewerker bit)
Mar 14 '06 #1
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