JMS paging store - what is difference between bytes and messages threshholds?
You can activate and configure both "bytes paging" and "message paging". What
is the difference? Why use one or the other or are both required?
Thanks,
John
Hi Mr. Black,
Cool name.
Message paging is based on number of messages. Bytes paging is based
on the size of message payload (properties, body, corr-id, and type),
where the payload does not include the header size. One can set
either or both -- if both are set, paging kicks in as soon
as the first threshhold is reached.
As for which one to use, you may wish to set both. The former
accounts for large numbers of small messages, and the latter
handles large messages. (eg 1000 small 10 byte messages
will charge 10,000 bytes toward quota but actually use up
128,000 bytes of JVM memory once the header is thrown in...)
Tom
John Black wrote:
> You can activate and configure both "bytes paging" and "message
paging". What
> is the difference? Why use one or the other or are both required?
>
> Thanks,
> John
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hi
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SQL> Drop Table Sales;
Table dropped.
SQL> Drop Table Accounts;
Table dropped.
SQL> Drop Table Research;
Table dropped.
SQL> Create Table Sales As Select * From Emp;
Table created.
SQL> Create Table Accounts As Select * From Emp;
Table created.
SQL> Create Table Research As Select * From Emp;
Table created.
SQL> Truncate Table Sales;
Table truncated.
SQL> Truncate Table Accounts;
Table truncated.
SQL> Truncate Table Research;
Table truncated.
SQL> Select * From Sales;
no rows selected
SQL> Select * From Accounts;
no rows selected
SQL> Select * From Research;
no rows selected
SQL> Insert All
2 When Deptno=10 Then
3 Into Sales (Empno,Ename,Job,Mgr,Hiredate,Sal,Comm,DeptNo)
4 When Deptno=20 Then
5 Into Accounts (Empno,Ename,Job,Mgr,Hiredate,Sal,Comm,DeptNo)
6 When Deptno=30 Then
7 Into Research (Empno,Ename,Job,Mgr,Hiredate,Sal,Comm,DeptNo)
8 Select * From Emp
9 .
SQL> /
16 rows created.
SQL> Select * From Sales;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
7782 CLARK MANAGER 7839 09-JUN-81 100 10
7839 KING PRESIDENT 17-NOV-81 100 10
7934 MILLER CLERK 7782 23-JAN-82 100 10
7999 ABCDEFGH JOB 7839 09-FEB-06 100 0 10
4 rows selected.
SQL> Select * From Accounts;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
7901 SMITH CLERK 7902 17-DEC-80 100 20
7566 JONES MANAGER 7839 02-APR-81 100 20
7788 SCOTT ANALYST 7566 19-APR-87 100 20
7876 ADAMS CLERK 7788 23-MAY-87 100 20
7902 FORD ANALYST 7566 03-DEC-81 100 20
123 20
6 rows selected.
SQL> Select * From Research;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
7499 ALLEN SALESMAN 7698 20-FEB-81 100 300 30
7521 WARD SALESMAN 7698 22-FEB-81 100 500 30
7654 MARTIN SALESMAN 7698 28-SEP-81 100 1400 30
7698 BLAKE MANAGER 7839 01-MAY-81 100 30
7844 TURNER SALESMAN 7698 08-SEP-81 100 0 30
7900 JAMES MANAGER 7698 03-DEC-81 100 30
6 rows selected.
SQL> Truncate Table Sales;
Table truncated.
SQL> Truncate Table Accounts;
Table truncated.
SQL> Truncate Table Research;
Table truncated.
SQL> Insert First
2 When Deptno=10 Then
3 Into Sales (Empno,Ename,Job,Mgr,Hiredate,Sal,Comm,DeptNo)
4 When Deptno=20 Then
5 Into Accounts (Empno,Ename,Job,Mgr,Hiredate,Sal,Comm,DeptNo)
6 When Deptno=30 Then
7 Into Research (Empno,Ename,Job,Mgr,Hiredate,Sal,Comm,DeptNo)
8 Select * From Emp
9 /
16 rows created.
SQL> Select * From Sales;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
7782 CLARK MANAGER 7839 09-JUN-81 100 10
7839 KING PRESIDENT 17-NOV-81 100 10
7934 MILLER CLERK 7782 23-JAN-82 100 10
7999 ABCDEFGH JOB 7839 09-FEB-06 100 0 10
4 rows selected.
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EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
7901 SMITH CLERK 7902 17-DEC-80 100 20
7566 JONES MANAGER 7839 02-APR-81 100 20
7788 SCOTT ANALYST 7566 19-APR-87 100 20
7876 ADAMS CLERK 7788 23-MAY-87 100 20
7902 FORD ANALYST 7566 03-DEC-81 100 20
123 20
6 rows selected.
SQL> Select * From Research;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
7499 ALLEN SALESMAN 7698 20-FEB-81 100 300 30
7521 WARD SALESMAN 7698 22-FEB-81 100 500 30
7654 MARTIN SALESMAN 7698 28-SEP-81 100 1400 30
7698 BLAKE MANAGER 7839 01-MAY-81 100 30
7844 TURNER SALESMAN 7698 08-SEP-81 100 0 30
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6 rows selected.Both inserting insert the same records then whats the difference between ALL and FIRST clause in multi insert DML
Khurram Siddiqui
[email protected]Hello
From the docs:
ALL
If you specify ALL, then Oracle evaluates each WHEN clause regardless of the results of the evaluation of any other WHEN clause. For each WHEN clause whose condition evaluates to true, Oracle executes the corresponding INTO clause list.
FIRST
If you specify FIRST, then Oracle evaluates each WHEN clause in the order in which it appears in the statement. For the first WHEN clause that evaluates to true, Oracle executes the corresponding INTO clause and skips subsequent WHEN clauses for the given row.
ELSE clause
For a given row, if no WHEN clause evaluates to true:
* If you have specified an ELSE clause, then Oracle executes the INTO clause list associated with the ELSE clause.
* If you did not specify an else clause, then Oracle takes no action for that row.
See Also:
"Multitable Inserts: Examples"
Restrictions on Multitable Inserts
* You can perform multitable inserts only on tables, not on views or materialized views.
* You cannot perform a multitable insert into a remote table.
* You cannot specify a table collection expression when performing a multitable insert.
* In a multitable insert, all of the insert_into_clauses cannot combine to specify more than 999 target columns.
* Multitable inserts are not parallelized in a Real Application Clusters environment, or if any target table is index organized, or if any target table has a bitmap index defined on it.
* Plan stability is not supported for multitable insert statements.
* The subquery of the multitable insert statement cannot use a sequence.
So given this the following example shows the difference:
SQL> CREATE TABLE dt_test_insert_base as select rownum id from dba_objects where rownum <=20
2 /
Table created.
SQL> CREATE TABLE dt_test_insert_1 (id number)
2 /
Table created.
SQL> CREATE TABLE dt_test_insert_2 (id number)
2 /
Table created.
SQL>
SQL> INSERT ALL
2 WHEN rownum <=15 THEN
3 INTO dt_test_insert_1 (id)
4 WHEN rownum >=10 THEN
5 INTO dt_test_insert_2 (id)
6 SELECT
7 ID
8 FROM
9 dt_test_insert_base
10 /
26 rows created.
SQL>
SQL> SELECT * from dt_test_insert_1
2 /
ID
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
15 rows selected.
SQL> SELECT * from dt_test_insert_2
2 /
ID
10
11
12
13
14
15
16
17
18
19
20
11 rows selected.
SQL>
SQL> TRUNCATE TABLE dt_test_insert_1
2 /
Table truncated.
SQL> TRUNCATE TABLE dt_test_insert_2
2 /
Table truncated.
SQL>
SQL> INSERT FIRST
2 WHEN rownum <=15 THEN
3 INTO dt_test_insert_1 (id)
4 WHEN rownum >=10 THEN --This condition is ignored until the value of id is > 15
5 INTO dt_test_insert_2 (id)
6 SELECT
7 ID
8 FROM
9 dt_test_insert_base
10 /
20 rows created.
SQL> SELECT * from dt_test_insert_1
2 /
ID
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
15 rows selected.
SQL> SELECT * from dt_test_insert_2
2 /
ID
16
17
18
19
20HTH
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Hi all,
I tried to create a SubContracting PO,i found BOM and Components in Item <b>Tab</b>
but if i click components and BOM same data details exists,then whats the difference between component and BOM??
and also Pls give me method of Creating PO with BOM
Thanks a lot in advanceDear Veeranna Chavadi,
This is some infirmation about BOM in PO subcontract
1) The purchasing department processing time defined for the plant
2) The planned delivery time from the material master record or purchasing info record
3) The delivery date
4) The goods receipt processing time from the material master record
For Ex:
Processing time Planned del. GR processing
Purchasing time time
Release PO Delivery Date
date date date required
Date required: 10.09.2007
GR processing time: 2 days (working days)
Planned delivery time: 10 days (calendar days)
Purchasing dept processing time: 2 days (working days)
Requirement date less GR processing time, planned delivery time, and purchasing department processing time.
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what happen to u r query, if BOM is exploding please close this thread as answered
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Prem. -
Whats basic difference between data and types while declearing the itab
whats basic difference between data and types while declearing the internal tables...
DATA : BEGIN OF t_vbap OCCURS 0,
vbeln1 LIKE vbap-vbeln,
posnr LIKE vbap-posnr,
kwmeng LIKE vbap-kwmeng,
netpr LIKE vbap-netpr,
netwr LIKE vbap-netwr,
werks LIKE vbap-werks,
matnr LIKE vbap-matnr,
arktx LIKE vbap-arktx,
END OF t_vbap.
vs
TYPES : BEGIN OF t_vbap,
vbeln1 LIKE vbap-vbeln,
posnr LIKE vbap-posnr,
kwmeng LIKE vbap-kwmeng,
netpr LIKE vbap-netpr,
netwr LIKE vbap-netwr,
werks LIKE vbap-werks,
matnr LIKE vbap-matnr,
arktx LIKE vbap-arktx,
END OF t_vbap.
and vs
TYPES : BEGIN OF t_vbap,
vbeln1 LIKE vbeln,
posnr LIKE posnr,
kwmeng LIKE kwmeng,
netpr LIKE netpr,
netwr LIKE netwr,
werks LIKE werks,
matnr LIKE matnr,
arktx LIKE arktx,
END OF t_vbap.hi,
like -> used for refering existing data elements in data dictionary or in sap
type -> used for refering existing data types in sap.
types: used for creating used defined structure of tables which has fields from more tahn one table.
diff b/w types and type in creation of internal tables is that when u create a table with types then u can use same for work area creation also.
ex:
TYPES : BEGIN OF t_vbap,
vbeln1 LIKE vbeln,
posnr LIKE posnr,
kwmeng LIKE kwmeng,
netpr LIKE netpr,
netwr LIKE netwr,
werks LIKE werks,
matnr LIKE matnr,
arktx LIKE arktx,
END OF t_vbap.
data: itab1 type t_vbap
wa_itab1 type t_vbap.
when type is used then u have to create a defintion of work area for another time when internal table doesnt have headr line as
ex:
DATA : BEGIN OF t_vbap OCCURS 0,
vbeln1 LIKE vbap-vbeln,
posnr LIKE vbap-posnr,
kwmeng LIKE vbap-kwmeng,
netpr LIKE vbap-netpr,
netwr LIKE vbap-netwr,
werks LIKE vbap-werks,
matnr LIKE vbap-matnr,
arktx LIKE vbap-arktx,
END OF t_vbap.
DATA : BEGIN OF wa_vbap,
vbeln1 LIKE vbap-vbeln,
posnr LIKE vbap-posnr,
kwmeng LIKE vbap-kwmeng,
netpr LIKE vbap-netpr,
netwr LIKE vbap-netwr,
werks LIKE vbap-werks,
matnr LIKE vbap-matnr,
arktx LIKE vbap-arktx,
END OF wa_vbap.
if helpful reward soem points.
with regards,
suresh.
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