Oracle触发器 急！！！！！
下面是我在sql中写好的触发器，因为没写过oracle的，大家帮忙看下，在oracle里这个该怎么写
alter trigger TongJi_Report
on study
for update
as
declare
@str_StudyInstanceUID varchar(120),
@str_ReportStatus varchar(10),
@str_AccessionNumber varchar(120),
@str_PatientNameC varchar(10),
@str_PatientID varchar(64),
@str_PatientSex varchar(10),
@str_PatientBirthday datetime,
@str_StudyClass2 varchar(50),
@str_SeriesDate datetime,
@str_laiyuan varchar(10),
@str_RECEIVED_CODE varchar(50),
@str_shenqingYiShi varchar(50),
@str_ReportingPhysician varchar(50),
@str_FactPrice varchar(50),
@str_InsuranceType varchar(50),
@str_jianchasuojian varchar(4000),
@str_jianchajielun varchar(4000),
@str_ReportFileLocate varchar(120),
@str_ReportFileName varchar(120)

if update(ReportStatus)

select @str_StudyInstanceUID=StudyInstanceUID,@str_ReportStatus=ReportStatus from inserted

select @str_PatientID=PatientID,@str_PatientNameC=PatientNameC,@str_PatientSex=PatientSex,@str_PatientBirthday=PatientBirthday,@str_AccessionNumber=AccessionNumber,
@str_StudyClass2=StudyClass2,@str_SeriesDate=SeriesDate,@str_laiyuan=laiyuan,@str_RECEIVED_CODE=RECEIVED_CODE,
@str_shenqingYiShi=shenqingYiShi,@str_ReportingPhysician=ReportingPhysician,@str_FactPrice=FactPrice,
@str_InsuranceType=InsuranceType,@str_jianchasuojian=study.jianchasuojian,@str_jianchajielun=study.jianchajielun,
@str_ReportFileLocate=StudyComponent.ReportFileLocate,@str_ReportFileName=StudyComponent.ReportFileName
from Patient,Study,Series,StudyComponent where Patient.PatientUID=study.PatientUID and
Study.StudyInstanceUID=Series.StudyInstanceUID and Series.StudyInstanceUID=StudyComponent.StudyInstanceUID and
Study.StudyInstanceUID =@str_StudyInstanceUID and studycomponent.reportfiletype='jpg'

if(@str_ReportStatus=8 and @str_laiyuan='门诊' and @str_AccessionNumber is not null and @str_AccessionNumber<>'')
begin
if @str_StudyInstanceUID is null
begin
select @str_StudyInstanceUID=''
end
if @str_ReportStatus is null
begin
select @str_ReportStatus=''
end
if @str_AccessionNumber is null
begin
select @str_AccessionNumber=''
end
if @str_PatientNameC is null
begin
select @str_PatientNameC=''
end
if @str_PatientSex is null
begin
select @str_PatientSex=''
end
if @str_PatientBirthday is null
begin
select @str_PatientBirthday=getdate()
end
if @str_StudyClass2 is null
begin
select @str_StudyClass2=''
end
if @str_SeriesDate is null
begin
select @str_SeriesDate=getdate()
end
if @str_laiyuan is null
begin
select @str_laiyuan=''
end
if @str_RECEIVED_CODE is null
begin
select @str_RECEIVED_CODE=''
end
if @str_shenqingYiShi is null
begin
select @str_shenqingYiShi=''
end
if @str_ReportingPhysician is null
begin
select @str_ReportingPhysician=''
end

if @str_FactPrice is null
begin
select @str_FactPrice=''
end
if @str_InsuranceType is null
begin
select @str_InsuranceType=''
end
if @str_jianchasuojian is null
begin
select @str_jianchasuojian=''
end
if @str_jianchajielun is null
begin
select @str_jianchajielun=''
end
if @str_ReportFileLocate is null
begin
select @str_ReportFileLocate=''
end
if @str_ReportFileName is null
begin
select @str_ReportFileName=''
end
if @str_PatientID is null
begin
select @str_PatientID=''
end

INSERT INTO pacstohis.dbo.PACSTOHIS(CreateDateTime,ExecuteStatus,InfoType,ExecuteInfo)
VALUES (getdate(),'0', '4','study~AccessionNumber~ST~=~'+ @str_AccessionNumber +
'~|study~PatientID~ST~=~'+ @str_PatientID +
'~|study~PatientNameC~ST~=~'+ @str_PatientNameC +
'~|study~PatientSex~ST~=~'+ @str_PatientSex +
'~|study~PatientBith~DA~=~'+ convert(nvarchar(120),@str_PatientBirthday,120) +
'~|study~StudyClass2~ST~=~'+ @str_StudyClass2 +
'~|study~ECG~ST~=~ECG'+
'~|study~SeriesDate~DA~=~'+ convert(nvarchar(120),@str_SeriesDate,120) +
'~|study~laiyuan~ST~=~'+@str_laiyuan +
'~|study~Received_code~ST~=~'+@str_RECEIVED_CODE +
'~|study~shenqingyishi~ST~=~'+ @str_shenqingYiShi +
'~|study~BGDate~ST~=~'+convert(nvarchar(120),getdate(),120)+
'~|study~ReportPhysiscian~ST~=~'+@str_ReportingPhysician +
'~|study~Status~ST~=~4'+
'~|study~FactPrice~ST~=~'+@str_FactPrice +
'~|study~InsertType~ST~=~'+@str_InsuranceType +
'~|study~DM~ST~=~310701001B'+
'~|study~jianchasuojian~ST~=~'+@str_jianchasuojian +
'~|study~jianchajielun~ST~=~'+@str_jianchajielun +
'~|study~JPG~ST~=~jpg'+
'~|study~ReportFileName~ST~=~'+@str_ReportFileName +
'~|study~Path~ST~=~\\128.0.150.140\Images\'+ REPLACE(RIGHT(@str_ReportFileLocate, LEN(@str_ReportFileLocate) - 3)+@str_ReportFileName, '\', '\') +'~')
end


[解决办法]
你发错地方了，如果你从未用过Oracle，建议先从存储过程写起。你连Oracle的数据库都没有的话，谈不上写触发器，你给的SQL太长了，如果是要示例代码，那也不该拿那么长的出来，懒得改它。