Same page for insert/update

Hi there,
Do someone knows about JSF patterns for using the same page/form for inserting and updating the same entities information ?
2 use cases:
1 --> the user browses a list of objects (DataTable), let's say Employees, clicks on one line and gets redirected to the employee details page so he can update the information;
2 --> the user wants to create a new employee and goes to the same page which is empty.
The way I am actually doing it: I have an employeeForm page and an EmployeeForm managed bean (session scope) which contains an instance of Employee. This Employee is initialized when an empty form is needed or sent by DataTable controller when employee details' are requested.
This is not really nice to my point of view since the EmployeeForm controller has to re-initialize it's Employee instance after each usage.
Does someone has a link or can provide a comment for a "best practise" on that topic?
Thanks in advance,
Fabrice.

I think you should consider using the request scope of the employee bean, when navigating from dataTable to employeeForm overwrite the bean with the value from datatable
otherwise the bean is created on every request.

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Db : 10.2
Os : Aix6
Is it possible to get the explain for insert statment without inserting the data in oracle 10g?I set set autotrace traceonly explain.
SQL> insert into emp select * from emp;
245760 rows created.
Execution Plan
Plan hash value: 2872589290
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| 0 | INSERT STATEMENT | | 952K| 22M| 582 (3)| 00:00:07 |
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Hi,
I am having following three sql statements. I am using Oracle 8i.
====================================================================================================================
Statement1 : Insert
Insert Into DBSchema.DstTableName( dstCol1, dstColP, dstColKey, dstCol2, dstCol3, dstCol4, dstCol5, dstCol6 )
( SELECT DbSchema.Seq.nextval, srColP, srColKey, srCol1, srCol2, nvl(srCol3,0), nvl(srCol4,0), SYSDATE
From
SrcTableName SRC
Where
srcColP IS NOT NULL AND
NOT EXISTS
(SELECT 1
From
DBSchema.DstTableName Dst
Where
SRC.srcColP = DST.dstColP AND SRC.srcColKey = DST.dstColKey )
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Statement2 : Update
Update DBSchema.DstTableName dst
SET ( dstCol1,dstCol2,dstCol3,dstCol4, dstCol5)
=
( SELECT srCol1, srCol2, nvl(srCol3,0), nvl(srCol4,0), SYSDATE
From
SrcTableName src
Where
src.srcColP = dst.dstColP AND SRC.srcColKey = DST.dstColKey
WHERE EXISTS (
SELECT
1
From
SrcTableName SRC
Where
SRC.srcColP = DST.dstColP AND SRC.srcColKey = DST.dstColKey ) ;
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Delete
FROM DBSchema.DstTableName DST
Where Exists (
SELECT
1
From
SrcTableName SRC
Where
src.srcColP = dst.dstColP )
AND NOT EXISTS
SELECT
1
From
SrcTableName SRC
Where
src.srcColP = dst.dstColP AND SRC.srcColKey = DST.dstColKey ) ;
====================================================================================================================
For the above three statement I have written the following cursor.
Equivalent Cursor:
PROCEDURE DEMOPROC
is
loop_Count integer := 0;
insert_Count integer := 0;
CURSOR c1
IS
SELECT src.srcCol1,
src.srcCol2,
src.srcCol3,
src.srcCol4,
src.srcCol5,
src.srcCol6,
src.srcCol7,
src.srcCol8,
src.srcCol9,
src.srcColKey,
src.srcColP
FROM
SrcTableName SRC
Where src.srcColP IS NOT NULL
AND NOT EXISTS
(SELECT 1
From
DBSchema.DstTableName Dst
Where
src.srcColP = DST.dstColP AND src.srcColKey = DST.dstColKey )
BEGIN
FOR r1 in c1 LOOP
Insert Into DBSchema.DstTableName( dstCol1, dstColP, dstColKey, dstCol2, dstCol3, dstCol4, dstCol5, dstCol6 )
values(DBSchema.Seq.nextval, r1.srcColP, r1.srcColKey, r1.srcCol1, r1.srcCol2, nvl(r1.srcCol3,0), nvl(r1.srcCol4,0), SYSDATE);
Update DBSchema.DstTableName dst
SET dst.dstCol1=r1.srcCol1 , dst.dstCol2=r1.srcCol2,
dst.dstCol3=nvl(r1.srcCol3,0),
dst.dstCol4=nvl(r1.srcCol4,0),
dst.dstCol5=SYSDATE
Where
r1.srcColP = dst.dstColP
AND
r1.srcColKey = DST.dstColKey ;
Delete
FROM DBSchema.DstTableName DST
Where
r1.srcColP = dst.dstColP ;
insert_Count := insert_Count + 1 ;
/* commit on a pre-defined interval */
if loop_Count > 999
then begin
commit;
loop_Count := 0;
end;
else loop_Count := loop_Count + 1;
end if;
end loop;
/* once the loop ends, commit and display the total number of records inserted */
commit;
dbms_output.put_line('total rows processed: '||TO_CHAR(insert_Count)); /*display insert count*/
EXCEPTION
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE('Error '||TO_CHAR(SQLCODE)||': '||SQLERRM);
END;
====================================================================================================================
I am not sure whether this cursor is right or not, have to verify it.
In delete and insert statements there is same where not exist clause in the original statement so I included that in my cursor declaration but not sure whether update will work with that or not.
I have to use the three statements mentioned above for few source and destination tables and each are having many rows. How do i tune it ?
What else can be done to improve the performance with the the three statements mentioned above.
Any help will be highly appreciated.
Thanks !
Regards,

You wont any anything extra by creating mulitple threads of the same question. Instead of this just provide the full information wht have been asked so that someone here can helpo you. If you keep doing like this then you will put yourself in our's negative list and that's not good for you.
Daljit Singh

Help for inserting/updating new record

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Location
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ConfigItemName
DeploymentID
IncidentID
Package Name
Scope
Stage
Type
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Accountable
Comments
So can u pls help me out for this ,bcz i knew to stored procedure's creation.

I have the follwing table is called master table contain the follwing fields,
So here i need to create three Stored procedures
1.Insert operations(1 o/p paramter,and 14 input paramters) - uspInsert
2.Update operations(1 o/p paramter,and 14 input paramters) - uspUpdate
3.Delete Operations(1 o/p paramter,and 14 input paramters) - uspdelte
The following is the table ,so using this to make the three sp's ,Here we will use Exception machanism also.
Location
Client Name
Owner
ConfigItemID
ConfigItemName
DeploymentID
IncidentID
Package Name
Scope
Stage
Type
Start Date
End Date
Accountable
Comments
So can u pls help me out for this ,bcz i knew to stored procedure's creation.
Why you have to pass 14 parameters for DELETE and UPDATE? Do you have any Primary Key? If you do NOT have primary key in your table then in case you have duplicate information, SQL will update both or delete them together. You need to provide DDL of
you table. What are the data types of fields?
Best Wishes, Arbi; Please vote if you find this posting was helpful or Mark it as answered.

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