Difference between session and connection

Not sure this is the right place for this, but I am not able to find a proper definition between these 2 terms.
What is the difference between session and connection, theoritically speaking ?

Hello
In order to get the meaning of terms Connection and Session let's define first the term Flow.
The definition of a Flow is historically accepted as:
A unidirectional sequence of packets between 2 network endpoints that have the following 7 things in common:
1. Source IP address
2. Destination IP address
3. L3 Protocol type
4. Source port
5. Destination port
6. Tos (Type of Service)
7. Input interface
The terms Connection and Session can have many different meanings depending on the framework that they are used, but it can be said that:
Connection: A bidirectional Flow
Session: Many connections between the same source and same destination
HTH

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Difference between Datasource and Connection Pool

Hi,
What is the major difference between Datasource and Connection Pool.
Both the Datasource with JNDI and Connectio Pool will serve the pool of connections. Then what is the difference.
regards,
Raj

A datasource is not implicitly a connection pool. You can configure that in the datasource properties. A connection pool is also not implicitly a datasource. You can create your own connection pool using the java.sql interfaces. A datasource just gives the ability to acquire the connections and access the database through JNDI. A connection pool just gives the ability to reuse a set of connections which are created/closed/controlled by the connection pool logic.

Difference between OraclePooledConnection and Connection

Hi,
Can someone help me in finding the difference between using oracle.jdbc.pool.OracleConnectionPoolDataSource with OraclePooledConnection and oracle.jdbc.pool.OracleConnectionPoolDataSource with Connection.
Thanks in advance.
Sindhiya V.

Hello
In order to get the meaning of terms Connection and Session let's define first the term Flow.
The definition of a Flow is historically accepted as:
A unidirectional sequence of packets between 2 network endpoints that have the following 7 things in common:
1. Source IP address
2. Destination IP address
3. L3 Protocol type
4. Source port
5. Destination port
6. Tos (Type of Service)
7. Input interface
The terms Connection and Session can have many different meanings depending on the framework that they are used, but it can be said that:
Connection: A bidirectional Flow
Session: Many connections between the same source and same destination
HTH

Difference between session and cookie?

what for they use?

If we're talking web application context:
Each web browser transaction is a separate connection, so the web server often needs to be able to keep track of which comes from which browser, to tie the individual transactions into a conversation. The most popular underlying mechanism is cookies. The server sends the browser a cookie as part of the first transaction response and, thereafter, every time the browser sends a transaction it includes the cookie. Cookies typically contain random strings of characters which uniquely label the browser.
A Session object is used in Serlvets and JSPs as a higher level abstraction of the same thing. The session object retains data about the conversation between transactions. The web server normally implements this by automatically creating a random cookie associated with the Session object and, whenever a transaction is received, it looks for the cookie and finds the relavant session object.

Differences between cookies and sessions

Hi there,
I want to learn the differences between sessions and cookies in PHP.Please help me.
Please let me know if there any video demonstrations that explain sessions and cookies.
Thanks in advance.

Cookies and server side sessions are related in that they are both ways to persist data. This is required because of the fact that http is a stateless protocol, meaning that each request and response are independent transactions. Cookies are stored on the client. You might use them to store the contents of a shopping cart, or a user login id for a particular site. Or you could store a setting so that the user is automatically logged in, similar to what occurs here in the adobe site / forums. You can set various options for when cookies expire. Cookies that persist when the browser is closed are store in files, otherwise they could be store in memory only. Cookies can be created using either client or server side code.
Server side sessions are created on the server with a server side scripting language. A session id is generated and stored as a token on the client (in an in memory cookie) so that the server can track requests from the same originating client. Session variables are ways to store data related to the session on the server. Sessions use server resources which is why you should only use them when necessary and destroy them when done. When the session is destroyed, the session variables are gone so if you want to keep them for later you can store them in a database or store them in a cookie.
HTTP cookie - Wikipedia, the free encyclopedia
Hope that helps

Difference between closing the connection before and after committing user transaction?

          I was wondering what's the difference between closing the connection before committing
          the transaction versus closing the connection after committing the transaction?...
          for e.g....
          Scenario 1.........
          UserTransaction useretran;
          usertran.begin();
          Connection con = datasource.getCOnnection();
          // do bunch of stuff...
          conn.close();
          usertran.commit()
          Scenario 2...
          UserTransaction useretran;
          usertran.begin();
          Connection con = datasource.getCOnnection();
          // do bunch of stuff...
          usertran.commit()
          conn.close();
          thanks....
          Srini


Hi. As long as you're sure there's a transaction going on, and the connection
is a transaction-aware object (from a TxDataSource), either will be fine.
In the first scenario the actual semantics of the close() call are less than
normal, because we really don't close the connection or return it to the
pool until the actual transaction commits, and in the second case, we have
already taken the connection out of your service as of the commit().
The second scenario is the usual coding style. If there's ever a chance your
code will get non-transaction-aware connections, it is crucial to close
connections, and I always recommend putting the close() in a finally block
so it's guaranteed to happen.
Joe
srinivas wrote:
I was wondering what's the difference between closing the connection before committing
the transaction versus closing the connection after committing the transaction?...
for e.g....
Scenario 1......... UserTransaction useretran; usertran.begin(); Connection con =
datasource.getCOnnection(); // do bunch of stuff... conn.close(); usertran.commit()
Scenario 2... UserTransaction useretran; usertran.begin(); Connection con = datasource.getCOnnection();
// do bunch of stuff... usertran.commit() conn.close();
thanks....
Srini

What is the difference between Session timeout and Short Session timeout Under Excel Service Application -- session management?

Under Excel Service Application --> session management; what is the difference between Session timeout and Short Session timeout?

Any call made from the API will automatically be set to the “Session Timeout” period, no matter
what. Calls made from EWA (Excel Web Access) will get the “Short Session Timeout” period assigned to it initially.
Short Session Timeout and Session Timeout in Excel Services
Short Session Timeout and Session Timeout in Excel Services - Part 2
Sessions and session time-outs in Excel Services
above links are from old version but still applies to all.
Please remember to mark your question as answered &Vote helpful,if this solves/helps your problem. ****************************************************************************************** Thanks -WS MCITP(SharePoint 2010, 2013) Blog: http://wscheema.com/blog

Difference between Session Facade and Business Delegate design patterns

Can someone tell me the differences between Session Facade and Business Delegate design patterns

1. Session Facade decouples client code from Entity beans introducing session bean as a middle layer while Business Delegate decouples client code from EJB layer ( Session beans).
2. SF reduces network overhead while BD reduces maintenance overhead.
3. In SF any change in Session bean would make client code change.
While in DB client is totally separate from Session bean because BD layer insulate client from Session beans(EJB layer).
3. In only SF scenario, Client coder has to know about EJB programming but BD pattern no EJB specialization needed.
4.SF emphasizes on separation of Verb, Noun scenario while BD emphasizes on separation of client(presentable) and EJB layer.
Anybody pls suggest more differences ?

Difference between Session method and call transaction

Hi,
please give me the differences between session method and call transaction,
briefly explaining synchronus , asynchronus, process, update.
Thanks in advance

Hi Vijay Kumar
CLASSICAL BATCH INPUT (Session Method)
CALL TRANSACTION
BATCH INPUT METHOD:
This method is also called as CLASSICAL METHOD.
Features:
Asynchronous processing.
Synchronous Processing in database update.
Transfer data for more than one transaction.
Batch input processing log will be generated.
During processing, no transaction is started until the previous transaction has been written to the database.
CALL TRANSACTION METHOD :
This is another method to transfer data from the legacy system.
Features:
Synchronous processing. The system performs a database commit immediately before and after the CALL TRANSACTION USING statement.
Updating the database can be either synchronous or asynchronous. The program specifies the update type.
Transfer data for a single transaction.
Transfers data for a sequence of dialog screens.
No batch input processing log is generated.
http://www.sap-img.com/abap/difference-between-batch-input-and-call-transaction-in-bdc.htm
Among the two methods call transaction is better compared to session bcoz data transfer is faster in it.
Differences between call transaction and session.
Session Method:
1) Data is not updated in the database table until the session is processed.
2) No sy-subrc is returned.
3) Error log is created for error records.
4) Updation is always synchronous.
Call Transaction Method:
1) Immediate updation in the database table.
2) sy-subrc is returned.
3)Error need to be handled explicitly.
4) updation can be synchronous as well as asynchronous.
2) ya u can use using the N mode no screen.
3)u can't handle multiple transaction in call transaction.
4) u can handle multiple transaction in session using the BDC_INSERT fm.
5)When u go to SM35 u can able to see the error records.
Which is best?
That depends on your requirement. Both of them have there advantages.
According to the situation u can choose any one of these.
difference between batch input and call transaction in BDC Session method.
1) synchronous processing.
2) can tranfer large amount of data.
3) processing is slower.
4) error log is created
5) data is not updated until session is processed.
Call transaction.
1) asynchronous processing
2) can transfer small amount of data
3) processing is faster.
4) errors need to be handled explicitly
5) data is updated automatically
For session method,these are the function modules to b used.
BDC_OPEN_GROUP
BDC_INSERT
BDC_CLOSE_GROUP
For call transaction,this is the syntax.
CALL TRANSACTION TCODE USING BDCDATA
MODE A or E or N
UPDATE A or S
MESSAGES INTO MESSTAB.
Take a scenario where we need to post documents in FB01 and the input file has say 2000 records (2000 documents, not line items in FB01 but 2000 records)
In the BDC call transaction method
We call the transaction FB01 2000 times (once for each record posting) and if the processing fails in record no 3 it can be captured and start with reocord 4.
Eg: Loop at itab.
call transaction FB01
capture errors
endloop.
In the session method.
We do not explicity call the transaction 2000 times, but all the records are appeneded into a session and this session is stored. The processinf of the session is done wwhenever the user wants it to be done. Hence the errors cannot be captured in the program itself
Check these link:
http://www.sap-img.com/abap/difference-between-batch-input-and-call-transaction-in-bdc.htm
http://www.sap-img.com/abap/question-about-bdc-program.htm
http://www.itcserver.com/blog/2006/06/30/batch-input-vs-call-transaction/
http://www.planetsap.com/bdc_main_page.htm
Batch Input Session method is asynchronous as told by others here. But the advantage of this is that you have all the error messages and the data for each transaction held persistantly. You don't have to code anything for processing them or writing the logs.
But at the same time, the same feature can be disadvantageous if you need to react to an error or if there are too many errors to manually correct in a session. Since the session are created in the program and its execution is done seperately, you loose the trackability of such transactions.
With a call transaction, what was a disadvantage above will become an advantage. Call transaction immediately gives you messages back and you can react to it in your program. But the disadvantage is that, if you have several hundreds of transactions to run, running them from within the program can be resource crunching affair. It will hamper the system performance and you cannot really distribute the load. Of course, you have some mechanisms with which you can overcome this, but you will have to code for it. Also, storing the messages and storing the errored transaction data etc will have to be handled by you in the program. Whereas, in batch input session, your program's job is to just create the session, after that everything is standard SAP system's responsibility.
Ideally, you should do a call transaction if the resources are not a problem and if it fails, put the errored transaction into a session.
You can decide based on the data volume that your BDC is processing. If data volume is high go for session else call transaction will do.The call transaction updates will be instantaneous where as session needs to be processed explictly after creation.
Session Method
1) Session method supports both small amount of data aswell as large amount of data
2) data processing is asynchronus and data updation is synchronus.
3) it process multiple apllication while perfomaning validations.
4) in session method data will be updated in data base only after processing session only.
5) system provide by default logfile for handling error records.
6) it supports both foreground aswell as background process
in bdc we use FM ...
bdc_open_group " for creating Session
bdc_insert " adding transaction and bdcdata table for updating database
bdc_close_group " for closing Session
Call Transaction
1) Call transaction exclusively for small amout of data
2) it supports only one apllication while perfoming validations
3) there is no default logfile, We can explicitly provide logic for creating logfile for handling error records.
we can create logfile by using structure....BDCMSGCOLL
4) it doesn't support background processing.
5) data processing is synchronous and Data updation is Synchronous( default), in
this method also supports daya updation in asynchronus process also.
syntax:
Call transaction <transaction-name> using BDCDATA
mode <A/N/E>
update <L/A/S>
messages into BDCMSGCOLL.
BDC:
Batch Data Communication (BDC) is the process of transferring data from one SAP System to another SAP system or from a non-SAP system to SAP System.
Features :
BDC is an automatic procedure.
This method is used to transfer large amount of data that is available in electronic medium.
BDC can be used primarily when installing the SAP system and when transferring data from a legacy system (external system).
BDC uses normal transaction codes to transfer data.
Types of BDC :
CLASSICAL BATCH INPUT (Session Method)
CALL TRANSACTION
BATCH INPUT METHOD:
This method is also called as CLASSICAL METHOD.
Features:
Asynchronous processing.
Synchronous Processing in database update.
Transfer data for more than one transaction.
Batch input processing log will be generated.
During processing, no transaction is started until the previous transaction has been written to the database.
CALL TRANSACTION METHOD :
This is another method to transfer data from the legacy system.
Features:
Synchronous processing. The system performs a database commit immediately before and after the CALL TRANSACTION USING statement.
Updating the database can be either synchronous or asynchronous. The program specifies the update type.
Transfer data for a single transaction.
Transfers data for a sequence of dialog screens.
No batch input processing log is generated.
For BDC:
http://myweb.dal.ca/hchinni/sap/bdc_home.htm
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/home/bdc&
http://www.sap-img.com/abap/learning-bdc-programming.htm
http://www.sapdevelopment.co.uk/bdc/bdchome.htm
http://www.sap-img.com/abap/difference-between-batch-input-and-call-transaction-in-bdc.htm
http://help.sap.com/saphelp_47x200/helpdata/en/69/c250684ba111d189750000e8322d00/frameset.htm
http://www.sapbrain.com/TUTORIALS/TECHNICAL/BDC_tutorial.html
Check these link:
http://www.sap-img.com/abap/difference-between-batch-input-and-call-transaction-in-bdc.htm
http://www.sap-img.com/abap/question-about-bdc-program.htm
http://www.itcserver.com/blog/2006/06/30/batch-input-vs-call-transaction/
http://www.planetsap.com/bdc_main_page.htm
call Transaction or session method ?
Check the following links:
http://www.sap-img.com/bdc.htm
See below example code :
Call three FM : BDC_OPEN_GROUP,BDC_INSERT and BDC_CLOSE_GROUP.
Once you execute the program and it creates the session at SM35 Transaction.
Report : ZMPPC011
Type : Data upload
Author : Chetan Shah
Date : 05/05/2005
Transport : DV3K919557
Transaction: ??
Description: This ABAP/4 Program creates new Production Versions
(C223). It accepts tab-delimited spreadsheet input and
creates BDC sessions.
Modification Log
Date Programmer Request # Description
06/10/2005 Chetan Shah DV3K919557 Initial coding
report zmppc011 no standard page heading line-size 120 line-count 55
message-id zz.
pool of form routines
include zmppn001.
Define BDC Table Structure
data: begin of itab_bdc_tab occurs 0.
include structure bdcdata.
data: end of itab_bdc_tab.
Input record layout of Leagcy File
data: begin of itab_xcel occurs 0,
matnr(18) type c,
werks(4) type c,
alnag(2) type c,
verid(4) type c,
text1(40) type c,
bstmi like mkal-bstmi,
bstma like mkal-bstma,
adatu(10) type c,
bdatu(10) type c,
stlal(2) type c,
stlan(1) type c,
serkz(1) type c,
mdv01(8) type c,
elpro(4) type c,
alort(4) type c,
end of itab_xcel.
data: begin of lt_pp04_cache occurs 0,
matnr like itab_xcel-matnr,
werks like itab_xcel-werks,
alnag like itab_xcel-alnag,
plnnr like mapl-plnnr,
arbpl like crhd-arbpl,
ktext like crtx-ktext,
end of lt_pp04_cache.
data: v_ssnnr(4) type n,
v_lines_in_xcel like sy-tabix,
v_ssnname like apqi-groupid,
v_trans_in_ssn type i,
wa_xcel LIKE itab_xcel,
l_tabix like sy-tabix,
v_matnr like rc27m-matnr,
v_plnnr like mapl-plnnr,
v_plnal like mapl-plnal,
v_tcode like sy-tcode value 'C223',
v_plnty like plas-plnty value 'R',
v_objty like crhd-objty value 'A',
v_plpo_steus like plpo-steus value 'PP04',
v_verwe like crhd-verwe value '0007'.
Parameters
selection-screen: skip 3.
selection-screen: begin of block 1 with frame.
parameters: p_name like rlgrap-filename
default 'C:\My Documents\InputFile.txt'
obligatory,
bdc session name prefix
p_bdcpfx(6) default 'ZPVCRT'
obligatory,
number for transction per BDC session
p_trnssn type i
default 2000 obligatory,
retain the BDC session after successfull execution
p_keep like apqi-qerase
default 'X',
user who will be executing BDC session
p_uname like apqi-userid
default sy-uname
obligatory.
selection-screen: end of block 1.
possible entry list (F4 dropdown) for input file name
at selection-screen on value-request for p_name.
*-SELECT FILE FROM USERS LOCAL PC
call function 'WS_FILENAME_GET'
exporting
DEF_FILENAME = ' '
def_path = 'C:\Temp\'
mask = ',.,..'
mode = 'O'
title = 'Select File '(007)
importing
filename = p_name
RC =
exceptions
inv_winsys = 1
no_batch = 2
selection_cancel = 3
selection_error = 4
others = 5.
if sy-subrc 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
endif.
begin the show
start-of-selection.
read data from input file
perform transfer_xcel_to_itab.
loop at itab_xcel.
hang on to xcel line num
l_tabix = sy-tabix.
each line in the xcel file marks begining of new prod.version defn
if num-of-trnas-in-session = 0, create new BDC session
if v_trans_in_ssn is initial.
perform bdc_session_open.
endif.
begin new bdc script for rtg create trans
fill in bdc-data for prod.version maintenance screens
perform bdc_build_script.
insert the bdc script as a BDC transaction
perform bdc_submit_transaction.
keep track of how many BDC transactions were inserted in the BDC
session
add 1 to v_trans_in_ssn.
if the user-specified num of trans in BDC session is reached OR
if end of input file is reached, close the BDC session
if v_trans_in_ssn = p_trnssn or
l_tabix = v_lines_in_xcel.
perform bdc_session_close.
clear v_trans_in_ssn.
endif.
endloop.
top-of-page.
call function 'Z_HEADER'
EXPORTING
FLEX_TEXT1 =
FLEX_TEXT2 =
FLEX_TEXT3 =
FORM TRANSFER_XCEL_TO_ITAB *
Transfer Xcel Spreadsheet to SAP Internal Table *
form transfer_xcel_to_itab.
Read the tab-delimited file into itab
call function 'WS_UPLOAD'
exporting
filename = p_name
filetype = 'DAT'
IMPORTING
filelength = flength
tables
data_tab = itab_xcel
exceptions
conversion_error = 1
file_open_error = 2
file_read_error = 3
invalid_table_width = 4
invalid_type = 5
no_batch = 6
unknown_error = 7
others = 8.
if sy-subrc = 0.
sort the data
sort itab_xcel by matnr werks.
clear v_lines_in_xcel.
if no data in the file - error out
describe table itab_xcel lines v_lines_in_xcel.
if v_lines_in_xcel is initial.
write: / 'No data in input file'.
stop.
endif.
else.
if file upload failed - error out
write: / 'Error reading input file'.
stop.
endif.
endform.
FORM BDC_SESSION_OPEN *
Open BDC Session *
form bdc_session_open.
create bdc session name = prefix-from-selectn-screen + nnnn
add 1 to v_ssnnr.
concatenate p_bdcpfx v_ssnnr into v_ssnname.
open new bdc session
call function 'BDC_OPEN_GROUP'
exporting
client = sy-mandt
group = v_ssnname
keep = p_keep
user = p_uname
exceptions
client_invalid = 1
destination_invalid = 2
group_invalid = 3
group_is_locked = 4
holddate_invalid = 5
internal_error = 6
queue_error = 7
running = 8
system_lock_error = 9
user_invalid = 10
others = 11.
endform.
FORM BDC_BUILD_SCRIPT *
Build BDC *
form bdc_build_script.
data: l_arbpl like crhd-arbpl,
l_text1 like mkal-text1,
l_mdv01 like mkal-mdv01,
l_mapl like mapl.
clear bdc-data itab - begin of new bdc transaction
clear itab_bdc_tab.
refresh itab_bdc_tab.
read material cross reference tables to determine sap part#
clear : v_matnr, v_plnnr, v_plnal.
perform read_matnr_cross_ref using itab_xcel-matnr
itab_xcel-werks
changing v_matnr.
determine the version description to use
if itab_xcel-text1 is initial.
l_text1 = itab_xcel-verid.
else.
l_text1 = itab_xcel-text1.
endif.
determine the routing group# and group ctr# to use
perform read_routing .
determine the production line to use
if itab_xcel-mdv01 is initial.
if not provided in the file then:
prod line = work ctr on the last PP04 op of the rtg determined above
perform read_wc_on_last_pp04 using v_plnnr v_plnal
changing l_mdv01.
NOTE: when executing the above form\routine, if v_plnnr is initial
or v_plnal is initial, THEN l_mdv01 will automatically be
returned blank (ie initial)
else.
l_mdv01 = itab_xcel-mdv01.
endif.
build bdc script
perform bdc_build_script_record
fill in initial screen
using: 'X' 'SAPLCMFV' '1000',
' ' 'BDC_OKCODE' '=ENTE',
' ' 'MKAL-WERKS' itab_xcel-werks,
' ' 'MKAL-MATNR' v_matnr,
' ' 'MKAL_ADMIN-DISPO' space,
' ' 'MKAL-PLNNR' space,
' ' 'MKAL_ADMIN-STTAG' space,
' ' 'MKAL-PLNNG' space,
' ' 'MKAL-MDV01' space,
' ' 'MKAL-PLNNM' space,
click create button on initial screen and go to detail screen
'X' 'SAPLCMFV' '1000',
' ' 'BDC_OKCODE' '=CREA',
fill in the detail screen and go back to initial screen
'X' 'SAPLCMFV' '2000',
' ' 'BDC_OKCODE' '=CLOS',
' ' 'MKAL_EXPAND-MATNR' v_matnr,
' ' 'MKAL_EXPAND-VERID' itab_xcel-verid,
' ' 'MKAL_EXPAND-TEXT1' l_text1,
' ' 'MKAL_EXPAND-BSTMI' itab_xcel-bstmi,
' ' 'MKAL_EXPAND-BSTMA' itab_xcel-bstma,
' ' 'MKAL_EXPAND-ADATU' itab_xcel-adatu,
' ' 'MKAL_EXPAND-BDATU' itab_xcel-bdatu,
' ' 'MKAL_EXPAND-PLTYG' v_plnty,
' ' 'MKAL_EXPAND-PLNNG' v_plnnr,
' ' 'MKAL_EXPAND-ALNAG' v_plnal,
' ' 'MKAL_EXPAND-STLAL' itab_xcel-stlal,
' ' 'MKAL_EXPAND-STLAN' itab_xcel-stlan,
' ' 'MKAL_EXPAND-SERKZ' itab_xcel-serkz,
' ' 'MKAL_EXPAND-MDV01' l_mdv01,
' ' 'MKAL_EXPAND-ELPRO' itab_xcel-elpro,
' ' 'MKAL_EXPAND-ALORT' itab_xcel-alort,
save the production version from initial screen
'X' 'SAPLCMFV' '1000',
' ' 'BDC_OKCODE' '=SAVE'.
endform.
FORM BDC_SUBMIT_TRANSACTION *
Submit BDC Session *
form bdc_submit_transaction.
Load BDC script as a trqansction in BDC session
call function 'BDC_INSERT'
exporting
tcode = v_tcode
tables
dynprotab = itab_bdc_tab
exceptions
internal_error = 01
not_open = 02
queue_error = 03
tcode_invalid = 04.
endform.
FORM BDC_BUILD_SCRIPT_RECORD *
form bdc_build_script_record using dynbegin name value.
clear itab_bdc_tab.
if dynbegin = 'X'.
move: name to itab_bdc_tab-program,
value to itab_bdc_tab-dynpro,
'X' to itab_bdc_tab-dynbegin.
else.
move: name to itab_bdc_tab-fnam,
value to itab_bdc_tab-fval.
shift itab_bdc_tab-fval left deleting leading space.
endif.
append itab_bdc_tab.
endform.
FORM BDC_SESSION_CLOSE *
Close BDC Session *
form bdc_session_close.
close the session
call function 'BDC_CLOSE_GROUP'
exceptions
not_open = 1
queue_error = 2
others = 3.
skip 2.
if sy-subrc ne 0.
write: / 'Error Closing BDC Session ' , 'RETURN CODE: ', sy-subrc.
else.
write : / 'Session created:', v_ssnname,
50 '# of transactions:', v_trans_in_ssn.
endif.
endform.
*& Form read_routing_cache
*FORM read_routing_cache USING pi_matnr
pi_werks
pi_alnag
pi_verid
pi_mdv01.
DATA: BEGIN OF lt_plpo OCCURS 0,
vornr LIKE plpo-vornr,
objty LIKE crhd-objty,
objid LIKE crhd-objid,
arbpl LIKE crhd-arbpl,
END OF lt_plpo,
l_mapl_plnnr LIKE mapl-plnnr.
determine the routing group#
CLEAR lt_pp04_cache.
chk if its in the cache first, if not then get it from MAPL table
and put it in the cache
READ TABLE lt_pp04_cache WITH KEY matnr = pi_matnr
werks = pi_werks
alnag = pi_alnag.
IF sy-subrc = 0.
do nothing - lt_pp04_cache header line has rtg#
ELSE.
get the routing group # from MAPL
SELECT plnnr INTO l_mapl_plnnr
FROM mapl UP TO 1 ROWS
WHERE matnr = pi_matnr AND
werks = pi_werks AND
plnty = 'R' AND
plnal = pi_alnag AND
loekz = space.
ENDSELECT.
put it in the cache internal table
IF NOT l_mapl_plnnr IS INITIAL.
lt_pp04_cache-matnr = pi_matnr.
lt_pp04_cache-werks = pi_werks.
lt_pp04_cache-alnag = pi_alnag.
lt_pp04_cache-plnnr = l_mapl_plnnr.
APPEND lt_pp04_cache.
ENDIF.
ENDIF.
if the rtg# was determined AND
-- the work center was not determined yet AND
-- work center was really needed for this line in the input file
then
-- read the work center from last PP04 operation on the routing
-- update the cache accordingly
IF NOT lt_pp04_cache-plnnr IS INITIAL AND
lt_pp04_cache-arbpl IS INITIAL AND
( pi_verid IS INITIAL OR
pi_mdv01 IS INITIAL ).
read the last PP04 operation
CLEAR lt_plpo.
REFRESH lt_plpo.
SELECT vornr eobjty eobjid e~arbpl
INTO CORRESPONDING FIELDS OF TABLE lt_plpo
FROM plas AS b
INNER JOIN plpo AS c
ON bplnty = cplnty AND
bplnnr = cplnnr AND
bzaehl = czaehl
INNER JOIN crhd AS e
ON carbid = eobjid
WHERE b~plnty = v_plnty AND
b~plnnr = lt_pp04_cache-plnnr AND
b~plnal = lt_pp04_cache-alnag AND
c~loekz = space AND
c~steus = v_plpo_steus AND
e~objty = v_objty AND
e~werks = lt_pp04_cache-werks AND
e~verwe = v_verwe.
SORT lt_plpo BY vornr DESCENDING.
READ TABLE lt_plpo INDEX 1.
IF NOT lt_plpo-arbpl IS INITIAL.
lt_pp04_cache-arbpl = lt_plpo-arbpl.
read work center description
SELECT SINGLE ktext INTO lt_pp04_cache-ktext
FROM crtx WHERE objty = lt_plpo-objty AND
objid = lt_plpo-objid AND
spras = sy-langu.
the following read will get the index of the correct record to be
updated in the cache
READ TABLE lt_pp04_cache
WITH KEY matnr = pi_matnr
werks = pi_werks
alnag = pi_alnag.
MODIFY lt_pp04_cache
INDEX sy-tabix
TRANSPORTING arbpl ktext.
ENDIF.
ENDIF.
*ENDFORM. " read_last_pp04_operation_cache
*& Form read_routing
form read_routing.
data: begin of lt_mapl occurs 0,
plnnr like mapl-plnnr,
plnal like mapl-plnal,
end of lt_mapl,
l_arbpl like crhd-arbpl.
get all the rtg# and grp ctr# from MAPL
select plnnr plnal
into corresponding fields of table lt_mapl
from mapl
where matnr = v_matnr and
werks = itab_xcel-werks and
plnty = v_plnty and "Rate Routing
loekz = space. "with del flag = OFF
sort lt_mapl by plnal.
if not itab_xcel-verid is initial.
if the verid=0001 then use the 1st good rtg-grp# and grp-ctr#
if itab_xcel-verid = '0001'.
read table lt_mapl index 1.
v_plnnr = lt_mapl-plnnr.
v_plnal = lt_mapl-plnal.
else.
if the verid0001 then use the rtg-grp# and grp-ctr# of the routing
whose work center on the last PP04 operation matches the given verid
loop at lt_mapl.
clear l_arbpl.
get the work center from the last PP04 operation
perform read_wc_on_last_pp04 using lt_mapl-plnnr
lt_mapl-plnal
changing l_arbpl.
if itab_xcel-verid = l_arbpl.
v_plnnr = lt_mapl-plnnr.
v_plnal = lt_mapl-plnal.
exit.
endif.
endloop.
endif.
else.
do nothing
endif.
For version IDs that are other then '0000' or 'ZWIP' :--
if itab_xcel-verid NE '0000' and
itab_xcel-verid NE 'ZWIP'.
if routing group# or group counter was not determined, make the
valid-to date 99/99/9999 so that the BDC, on execution, errors out.
if v_plnnr is initial or
v_plnal is initial.
itab_xcel-bdatu = '99/99/9999'.
endif.
endif.
determine the routing group#
CLEAR lt_pp04_cache.
chk if its in the cache first, if not then get it from MAPL table
and put it in the cache
READ TABLE lt_pp04_cache WITH KEY matnr = pi_matnr
werks = pi_werks
alnag = pi_alnag.
IF sy-subrc = 0.
do nothing - lt_pp04_cache header line has rtg#
ELSE.
get the routing group # from MAPL
put it in the cache internal table
IF NOT l_mapl_plnnr IS INITIAL.
lt_pp04_cache-matnr = pi_matnr.
lt_pp04_cache-werks = pi_werks.
lt_pp04_cache-alnag = pi_alnag.
lt_pp04_cache-plnnr = l_mapl_plnnr.
APPEND lt_pp04_cache.
ENDIF.
ENDIF.
if the rtg# was determined AND
-- the work center was not determined yet AND
-- work center was really needed for this line in the input file
then
-- read the work center from last PP04 operation on the routing
-- update the cache accordingly
IF NOT lt_pp04_cache-plnnr IS INITIAL AND
lt_pp04_cache-arbpl IS INITIAL AND
( pi_verid IS INITIAL OR
pi_mdv01 IS INITIAL ).
read the last PP04 operation
CLEAR lt_plpo.
REFRESH lt_plpo.
SELECT vornr eobjty eobjid e~arbpl
INTO CORRESPONDING FIELDS OF TABLE lt_plpo
FROM plas AS b
INNER JOIN plpo AS c
ON bplnty = cplnty AND
bplnnr = cplnnr AND
bzaehl = czaehl
INNER JOIN crhd AS e
ON carbid = eobjid
WHERE b~plnty = v_plnty AND
b~plnnr = lt_pp04_cache-plnnr AND
b~plnal = lt_pp04_cache-alnag AND
c~loekz = space AND
c~steus = v_plpo_steus AND
e~objty = v_objty AND
e~werks = lt_pp04_cache-werks AND
e~verwe = v_verwe.
SORT lt_plpo BY vornr DESCENDING.
READ TABLE lt_plpo INDEX 1.
IF NOT lt_plpo-arbpl IS INITIAL.
lt_pp04_cache-arbpl = lt_plpo-arbpl.
read work center description
SELECT SINGLE ktext INTO lt_pp04_cache-ktext
FROM crtx WHERE objty = lt_plpo-objty AND
objid = lt_plpo-objid AND
spras = sy-langu.
the following read will get the index of the correct record to be
updated in the cache
READ TABLE lt_pp04_cache
WITH KEY matnr = pi_matnr
werks = pi_werks
alnag = pi_alnag.
MODIFY lt_pp04_cache
INDEX sy-tabix
TRANSPORTING arbpl ktext.
ENDIF.
ENDIF.
endform. " read_last_pp04_operation_cache
*& Form read_wc_on_last_pp04
form read_wc_on_last_pp04 using pi_plnnr
pi_plnal
changing pe_arbpl.
data: begin of lt_plpo occurs 0,
vornr like plpo-vornr,
objty like crhd-objty,
objid like crhd-objid,
arbpl like crhd-arbpl,
end of lt_plpo.
get all the PP04 operations for the given rtg# & grp-ctr#
select vornr eobjty eobjid e~arbpl
into corresponding fields of table lt_plpo
from plas as b
inner join plpo as c
on bplnty = cplnty and
bplnnr = cplnnr and
bzaehl = czaehl
inner join crhd as e
on carbid = eobjid
where b~plnty = v_plnty and "Rate Routing
b~plnnr = pi_plnnr and
b~plnal = pi_plnal and
c~loekz = space and "Oper Del Flag = OFF
c~steus = v_plpo_steus and "PP04
e~objty = v_objty. "WC Obj Type = 'A'
read the last operation
sort lt_plpo by vornr descending.
read table lt_plpo index 1.
pe_arbpl = lt_plpo-arbpl.
endform. " read_wc_on_last_pp04
Goto LSMW-> Select Direct Input method in 1st step. These are the standard programs for data transfer.
Otherwise goto SPRO->SAP Reference IMG-> Under this you'll find standard data transfer programs module wise.
Reward points,
Shakir

Difference between Session method and Call transaction method

Hi,
Difference between Session method and Call transaction method in BDC

Hi,
SESSION method:
Is a standard procedure for transferring large amount of data into the R/3 system.
Data consistency is ensured because batch input uses all thje checks conducted on the normal screen.
It is a two step procedure:
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2. Process session: Which then actually transfers the data to database table.
In this method an ABAP/4 program reads the external data that is to be entered in the SAP system and stores the data in a session.
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Data along with it's actions are stored in session. i.e. data for screen fields, to which screen it is passed, the program name behind it and how next screen is processed.
When the program has finished generating the session, u can run the session to execute the SAP transactions in it.
BDC_OPEN_GROUP
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1) User Name: User Name.
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BDC_INSERT
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BDC_CLOSE_GROUP.
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CALL TRANSACTION method.
Syntax: call transaction <tr code> using <bdctab>
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A   : all screen mode ( all the screens of the transaction are displayed )
N   : no screen mode ( no screen will be displayed when you execute the transaction )
E   : error screen ( only those screens are displayed where in you have error record )
Update type:
S: synchronous update in which if you change data of one table then all the related tables gets updated and SY_SUBRC is returned for once and all.
A: asynchronous update in which if you change data of one table, the sy-subrc is returned and then updation of other affected tables takes place. So if system fails to update other tables still sy-subrc returned is zero.(that is when first table gets updated ).
messages: if you update database table, operation is either successful or unsuccessful. These messages are stored in internal table. This internal table structure is like BDCMSGCOLL.
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       MSGID:    message id.
       MSGV1.MSGV5: message variables
For each entry which is updated in the database table message is available in BDCMSGCOLL.
Reward if useful
Regards
Srinu

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Does any body have the idea of passive and active data connection mode for the transport protocol FTP.
I have one server with FTP, I have to pick the data from this FTP to XI.
What is the difference between active and passive data connection? Does XI supports both the connections?
Thanks & Regards
Katta Mohan Reddy

Hi
According to SAP Note - 821267
Q: Does the File Adapter support active data connections when connecting to an FTP server?
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Difference between active and passive,
You can definitely refer to the site mentioned by Suraj
cheers
Sameer

What is the difference between HTTPS URL connection and SSLSocket conn

What is the difference between HTTPS URL connection and SSLSocket connection

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What is the difference between BO Designer connect BW QUERY and BW CUBE？
which one is better?
Best regards.
Howard

Hi Howard,
You can use autorization variables in SAP BW and maitain the security there, using that you can apply diferent security not only at Infoobject levet you can apply security per BEX Query.
Here is some informaion about BEX and SAP BusinessObjects
BI metadata feature _______SAP OLAP BAPI support level
Characteristics (incl. Time and Unit)_______ InfoCube/BEx Query
Hierarchies_______ InfoCube/BEx Query
Basic Key Figures_______ InfoCube/BEx Query
Navigational Attributes_______ BEx Query only
Display Attributes_______ InfoCube/BEx Query
Calculated Key Figures / Formulas_______ BEx Query only
Restricted Key Figures_______ BEx Query only
Custom Structures_______ BEx Query only
Variables_______ BEx Query only
I hope this help you.
BEst regards,
Fede

Why would i connect a external hardrive to the airport extreme and what is the difference between LAN and WAN gigabit ethernet?

Hey just wanted to know what is the reason i would connect my external hardrive to the extreme and what is the difference between LAN and WAN ehternet. I know one is local and other is wide but can someone explain in simpler terms.

Connecting a hard drive to the Airport Extreme makes it available to be shared across all the computers on your network.
WAN (Wide Area Network) is your connection to the internet
LAN (Local Area Network) is your internal (or local) ethernet connections (computers, printers, etc...)
AirPort Base Station: About the WAN and LAN Ports

Difference between Terminal server connection and MSTSC remote desktop connection

Hi everyone , Wats the main difference between Terminal server connection and MSTSC remote desktop connection? Well both are used to connect a server remotely. right!
Are there any much difference between them?

RDP is a protocol and MSTSC is the RDP client.
In the situation you are referring to, you use MSTSC (RDP Client) in both cases, but when you connect to a client PC (Windows 7, Windows XP, etc) you can only connect if nobody is using that PC at the moment, if you connect to a server you can work along with
some other users. Server OS supports 2 connections by default, if you want more people you need Remote Desktop Services and RDS licenses.
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