BPM question - Delete all entries in a table and Insert data

Hello,
I'm new to PI BPM and have this scenario to implement.
I'm supposed to delete all entries in a table and then insert data to the same table.
Is BPM necessary? If it is, what is the best practice to implement my scenario?
I want to make sure that all entries were successfully deleted before insert data.
How do I check if all entries in the table were deleted successfully before
initiating insert.
Thank you.
-Won

Hi Won,
Yes, this is possible without BPM.
You have to create 2 separate mappings, each for deleting & inserting the records.
You will have 2 different Interface mappings as well.
But in ID, create a single interface determination.
In that, configure Deletion interface mapping first and in the second row, configure Insertion interface mapping.
Please make sure that the parameter 'Mainain Order At runtime' is checked in interface determination.
-Supriya.

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Delete all record in a table, the insert speed is not change.

I have an empty table, and i insert a record need 100ms,
when this table has 40,0000 record, i insert a record need 1s, this is ok, because i need do a compare based an index before insert a record, so more record, need more time.
The problem is when i delete all record in this table, the insert time is still 1s, not reduce to 100ms.Why?

Hello,
Read through this portion of oracle documentation
http://download.oracle.com/docs/cd/B19306_01/server.102/b14220/logical.htm#CNCPT004
The reason is still taking 1s, because when you inserted 400K record because HWM (The high water mark is the boundary between used and unused space in a segment.) moved up. And when you deleted all the records your HWM still at the same marker and didn't get to reset to 0. So when you insert 1 record it lookings for free space and after finding (generally a regular inserts got 6 steps it inserts data). If you truncate your table you and try it again it will be faster as your HWM is reset to 0.
Regards

Delete all entries from the following tables - Follow-up Activities (oracle)

Hello,
I performed a homogeneous system copy of our development BW system with the database (oracle 11.2.0.3) from the BW production system!
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DBSTATHORA, DBSTAIHORA, DBSTATIORA, DBSTATTORA
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sqlplus /nolog
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delete from DBSTATTORA
ERROR at line 1:
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... and it show me that error message.
This is strange because when I go to transaction SE14 and check the DBSTATTORA I see that table exist and contain a lot of entries!
Why this is happened in SQL Plus!? I´m running the correct SQL statement for doing this type of task or not?
How can I delete the entries of that tables? Can I do that using the transaction SE14?
Can you help me please?
Thank you,
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Hello
sqlplus /nolog
SQL> connect /as sysdba
SQL> delete from DBSTATTORA;
delete from DBSTATTORA
ERROR at line 1:
ORA-00942: table or view does not exist
It doesn't surprise me as you are not mentioning the schema name here. Instead it should be
delete from SAPSR3.DBSTATTORA;
Assuming the schema owner is SAPSR3. if the owner is different then replace that with the correct one.
Regards
RB

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I have to delete all entries in a custom table whose "Name" has a certain pattern say ZDBTAB01, ZDBTAB02, etc.
I arrive at the table name through ABAP code. But the statement
"DELETE FROM tab_name" doesnot work where tab_name is a variable.
Can anyone suggest a function module to perform this action..??
Thanks.
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data : v_tabname ..... value 'ZXXX'
delete from (v_tabname).
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I have one custom table which allows only some specific entries to be maintained in the table.I have used a standard table as a check table for dis.I found no issue while maintaining entries in the table.But when i try to delete the last entry in the table i get the message "No entry exist".Long textNo entries were found when importing data from the database.
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Hi,
If it is not possible through table maintainence then write a small Z program to delete the entries in devlopment system and then if then if you want you can transfer those to other systems.
delete from ZTABLE where {give your condition for the last record}.
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Simply delete all entries in a database.

Hello,
how do I simply delete all entries in a database (which must be thread safe, and most probably is)? For instance it is needed, as I'm developing a versioned open source XML/JSON database system, whereas I'm using a BerkeleyDB environment/database as a transaction log per revision (resource/log/version_number/...) for dirty blocks/pages and now want to introduce checkpointing (with currently only a single write-transaction per resource). That is another reading transaction (possibly another thread might read a transaction log, a BerkeleyDB environment/database while another thread, the checkpointer (most probably a deamon thread) commits, that is writes the log periodically or during less workload into the real resource. After the data is commited, the transaction-log must be emptied, but probably a reading transaction still reads from the log and falls back to reading from the real resource if the page is not in the log. That is I can't remove the database, but probably simply have to delete all entries and a simple .commit-file flag which indicates if the data has been written back to the real resource or the checkpointer must be writing it back sometime in the future (if the .commit-file still exists). Do I have to iterate through the database with a cursor (and .getNext())? Or does a dedicated method exist?
kind regards
Johannes

Hi Johannes,
As I think you've already discovered, there is no built-in method for deleting all records of a database that is open. The only similar built-in methods are those for removing or truncating an entire database (removeDatabase and truncateDatabase), and the database must be closed.
If you can't find a way to use removeDatabase or truncateDatabase, then you'll have to iterate through the records and delete them individually. If this is done for a large numbers of records in a single transaction, it will be expensive on a number of fronts, including memory usage for the locks: each record is individually locked.
If you don't need to delete all records in a single transaction (I couldn't completely understand your use case), then you can iterate with a cursor using READ_UNCOMMITTED and delete the records in individual transactions using Database.delete. This avoids using lots of memory for the locks, since only one record is locked at a time.
In either case the cost can be reduced by using DatabaseEntry.setPartial(0, 0, true) for the DatabaseEntry that is passed as the data parameter. You only need the key to delete the record, not the data, and avoiding a fetch of the data is a big cost savings (if the record data is not in cache). This optimization is only in JE 5.0 and above --in JE 4.1 and earlier, this has no advantage because the data is always fetched internally, as part of the deletion operation.
--mark

Delete any entry in the table before adding an entry?

Hello ABAP Experts,
I have the data in the work area. I can modify / update / insert to the table.
How to write the ABAP code for this situation.
1) to delete any entries in the table
2) update this entry
so finally always there would be only one entry.
Suggestions appreciated.
Thanks,
BWer

Hi,
Delete the entries of table by this stmt.
DELETE FROM (dbtabname).
Then insert the values from workarea
INSERT INTO dbtab VALUES <work_area>.
And u can upadte the entry with values of workarea by this stmr.
UPDATE (dbtabname) FROM wa.
Dont use MODIFY. It will add a new record if its a new entry.
Rgds,
Prakash

Delete all rows in a table

I have read two articles how to use sql adapter with delete.
http://btsguru.blogspot.se/2011/10/wcf-sql-adapter-table-operations.html
http://social.technet.microsoft.com/wiki/contents/articles/29146.biztalk-server-2013-crud-operation-with-wcf-sql-adapter-and-correlation.aspx?wa=wsignin1.0
Is it a way to delete all rows in a table?
I have tried to send <ns0:Rows>*</ns0:Rows> with no luck.
Challan

I'm not expert in Biztalk but one of the options to call stored procedure that contains the delete script:
http://geekswithblogs.net/StuartBrierley/archive/2011/10/19/biztalk-server-2010---using-the-wcf-sql-adapter-to-make.aspx
Sql Delete all rows from table Script:
DELETE FROM table_name;
or
TRUNCATE TABLE mytable;
Trucnate vs Delete:
http://www.mssqltips.com/sqlservertip/1080/deleting-data-in-sql-server-with-truncate-vs-delete-commands/
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For All Entries with two tables

Hi All,
         Can we use FOR ALL ENTRIES with two tables. for example
SELECT * FROM MKPF INTO TABLE T_MKPF
         WHERE BUDAT IN S_BUDAT.
SELECT * FROM MARA INTO TABLE T_MARA
         WHERE MTART IN S_MTART AND
                        MAKTL IN S_MAKTL.
SELECT * FROM MSEG INTO TABLE T_MSEG
       FOR ALL ENTRIES IN "T_MKPF AND T_MARA"
              WHERE MBLNR EQ T_MKPF-MBLNR AND
                             MATNR EQ T_MARA-MATNR.
can we do it like this or any other way to do this plz tell. I waitting for your responce.
Thanks
Jitendra

Hi,
u cannot do like this....chek some documentation on it..
1. duplicate rows are automatically removed
2. if the itab used in the clause is empty , all the rows in the source table will be selected .
3. performance degradation when using the clause on big tables.
Say for example you have the following abap code:
Select * from mara
For all entries in itab
Where matnr = itab-matnr.
If the actual source of the material list (represented here by itab) is actually another database table, like:
select matnr from mseg
into corresponding fields of table itab
where .
Then you could have used one sql statement that joins both tables.
Select t1.*
From mara t1, mseg t2
Where t1.matnr = t2.matnr
And T2..
So what are the drawbacks of using the "for all entires" instead of a join ?
At run time , in order to fulfill the "for all entries " request, the abap engine will generate several sql statements (for detailed information on this refer to note 48230). Regardless of which method the engine uses (union all, "or" or "in" predicates) If the itab is bigger then a few records, the abap engine will break the itab into parts, and rerun an sql statement several times in a loop. This rerun of the same sql statement , each time with different host values, is a source of resource waste because it may lead to re-reading of data pages.
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Select * from mara
Where matnr in ( ...)
Db2 will be able to perform this sql statement cheaply all 50 times, using one of sap standard indexes that contain the matnr column. But in actuality, if you consider the wider picture (all 50 executions of the statement), you will see that some of the data pages, especially the root and middle-tire index pages have been re-read each execution.
Even though db2 has mechanisms like buffer pools and sequential detection to try to minimize the i/o cost of such cases, those mechanisms can only minimize the actual i/o operations , not the cpu cost of re-reading them once they are in memory. Had you coded the join, db2 would have known that you actually need 500 rows from mara, it would have been able to use other access methods, and potentially consume less getpages i/o and cpu.
In other words , when you use the "for all entries " clause instead of coding a join , you are depriving the database of important information needed to select the best access path for your application. Moreover, you are depriving your DBA of the same vital information. When the DBA monitors & tunes the system, he (or she) is less likely to recognize this kind of resource waste. The DBA will see a simple statement that uses an index , he is less likely to realize that this statement is executed in a loop unnecessarily.
Beore using the "for all entries" clause and to evaluate the use of database views as a means to:
a. simplify sql
b. simplify abap code
c. get around open sql limitations.
check the links
http://www.thespot4sap.com/articles/SAPABAPPerformanceTuning_ForAllEntries.asp
The specified item was not found.
Regards,
Nagaraj

II want delete all entries in shown by showjobs

Hi,
In my local machine, i want delete all entries shown by showjobs ( dveloppemnt suite version 10.1.2.0.2)
http://localmachine.domain:8889/reports/rwservlet/showjobs?
Thank's in adavance.

Hi Salim,
Metalink ID 260810.1 will serve your purpose,(For clear description,Explained well)
Basically you can delete all entriesshown by showjobs
By reducing maxQueueSize to 1 or 0 and restart the Reports Server, then reset maxQueueSize back to desired number and restart again.
The maxQueueSize is a paramter present in rep_servername.conf file
Hope this helps,
Regards
Fabian

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Hi Bharat,
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Hope this helps.
Please reward if useful.
Thanks,
Srinivasa

How to delete forecast entries with zero current and original qty from a particular forecast set which span across multiple forecasts

how to delete forecast entries with zero current and original qty from a particular forecast set which span across multiple forecasts

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NOTE: Please mark the post as Helpful or Answered if the update has really helped you. This would also bring the thread to logical conclusion and will be helpful for the viewers.

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BPM question - Delete all entries in a table and Insert data

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