Diff between for & while

what is the difference between exception & error

VAS_MS wrote:
masijade. wrote:
VAS_MS wrote:
Where as Error cant be Handled
Ex: OutofMemory,StackOverFlowErrorOh, but they can be handled (at least some, if not all, of them can), its just not normally advisable to try.Oh, but they can be handled (at least some, if not all, of them can), its just not normally advisable to try.
can you give an example masijade.
try {
throw new StackOverflowError();
} catch (Throwable t) {
System.out.println("It's not that you can't, its just that you SHOULDN'T.");
}

Similar Messages

Hi guru's what is the diff between for all entries & joins

hi guru's what is the diff between for all entries & joins

Hi Vasu,
Joins are used to fetch data fast from Database tables:
Tables are joined with the proper key fields to fetch the data properly.
If there are no proper key fields between tables don't use Joins;
Important thing is that don't USE JOINS FOR CLUSTER tableslike BSEG and KONV.
Only use for Transparenmt tables.
You can also use joins for the database VIews to fetch the data.
JOINS
... FROM tabref1 [INNER] JOIN tabref2 ON cond
Effect
The data is to be selected from transparent database tables and/or views determined by tabref1 and tabref2. tabref1 and tabref2 each have the same form as in variant 1 or are themselves Join expressions. The keyword INNER does not have to be specified. The database tables or views determined by tabref1 and tabref2 must be recognized by the ABAP Dictionary.
In a relational data structure, it is quite normal for data that belongs together to be split up across several tables to help the process of standardization (see relational databases). To regroup this information into a database query, you can link tables using the join command. This formulates conditions for the columns in the tables involved. The inner join contains all combinations of lines from the database table determined by tabref1 with lines from the table determined by tabref2, whose values together meet the logical condition (join condition) specified using ON>cond.
Inner join between table 1 and table 2, where column D in both tables in the join condition is set the same:
Table 1 Table 2
A
B
C
D
D
E
F
G
H
a1
b1
c1
1
1
e1
f1
g1
h1
a2
b2
c2
1
3
e2
f2
g2
h2
a3
b3
c3
2
4
e3
f3
g3
h3
a4
b4
c4
3
|--|||--|
Inner Join
A
B
C
D
D
E
F
G
H
a1
b1
c1
1
1
e1
f1
g1
h1
a2
b2
c2
1
1
e1
f1
g1
h1
a4
b4
c4
3
3
e2
f2
g2
h2
|--||||||||--|
Example
Output a list of all flights from Frankfurt to New York between September 10th and 20th, 2001 that are not sold out:
DATA: DATE LIKE SFLIGHT-FLDATE,
CARRID LIKE SFLIGHT-CARRID,
CONNID LIKE SFLIGHT-CONNID.
SELECT FCARRID FCONNID F~FLDATE
INTO (CARRID, CONNID, DATE)
FROM SFLIGHT AS F INNER JOIN SPFLI AS P
ON FCARRID = PCARRID AND
FCONNID = PCONNID
WHERE P~CITYFROM = 'FRANKFURT'
AND P~CITYTO = 'NEW YORK'
AND F~FLDATE BETWEEN '20010910' AND '20010920'
AND FSEATSOCC < FSEATSMAX.
WRITE: / DATE, CARRID, CONNID.
ENDSELECT.
If there are columns with the same name in both tables, you must distinguish between them by prefixing the field descriptor with the table name or a table alias.
Note
In order to determine the result of a SELECT command where the FROM clause contains a join, the database system first creates a temporary table containing the lines that meet the ON condition. The WHERE condition is then applied to the temporary table. It does not matter in an inner join whether the condition is in the ON or WHEREclause. The following example returns the same solution as the previous one.
Example
Output of a list of all flights from Frankfurt to New York between September 10th and 20th, 2001 that are not sold out:
DATA: DATE LIKE SFLIGHT-FLDATE,
CARRID LIKE SFLIGHT-CARRID,
CONNID LIKE SFLIGHT-CONNID.
SELECT FCARRID FCONNID F~FLDATE
INTO (CARRID, CONNID, DATE)
FROM SFLIGHT AS F INNER JOIN SPFLI AS P
ON FCARRID = PCARRID
WHERE FCONNID = PCONNID
AND P~CITYFROM = 'FRANKFURT'
AND P~CITYTO = 'NEW YORK'
AND F~FLDATE BETWEEN '20010910' AND '20010920'
AND FSEATSOCC < FSEATSMAX.
WRITE: / DATE, CARRID, CONNID.
ENDSELECT.
Note
Since not all of the database systems supported by SAP use the standard syntax for ON conditions, the syntax has been restricted. It only allows those joins that produce the same results on all of the supported database systems:
Only a table or view may appear to the right of the JOIN operator, not another join expression.
Only AND is possible in the ON condition as a logical operator.
Each comparison in the ON condition must contain a field from the right-hand table.
If an outer join occurs in the FROM clause, all the ON conditions must contain at least one "real" JOIN condition (a condition that contains a field from tabref1 amd a field from tabref2.
Note
In some cases, '*' may be specified in the SELECT clause, and an internal table or work area is entered into the INTO clause (instead of a list of fields). If so, the fields are written to the target area from left to right in the order in which the tables appear in the FROM clause, according to the structure of each table work area. There can then be gaps between table work areas if you use an Alignment Request. For this reason, you should define the target work area with reference to the types of the database tables, not simply by counting the total number of fields. For an example, see below:
Variant 3
... FROM tabref1 LEFT [OUTER] JOIN tabref2 ON cond
Effect
Selects the data from the transparent database tables and/or views specified in tabref1 and tabref2. tabref1 und tabref2 both have either the same form as in variant 1 or are themselves join expressions. The keyword OUTER can be omitted. The database tables or views specified in tabref1 and tabref2 must be recognized by the ABAP-Dictionary.
In order to determine the result of a SELECT command where the FROM clause contains a left outer join, the database system creates a temporary table containing the lines that meet the ON condition. The remaining fields from the left-hand table (tabref1) are then added to this table, and their corresponding fields from the right-hand table are filled with ZERO values. The system then applies the WHERE condition to the table.
Left outer join between table 1 and table 2 where column D in both tables set the join condition:
Table 1 Table 2
A
B
C
D
D
E
F
G
H
a1
b1
c1
1
1
e1
f1
g1
h1
a2
b2
c2
1
3
e2
f2
g2
h2
a3
b3
c3
2
4
e3
f3
g3
h3
a4
b4
c4
3
|--|||--|
Left Outer Join
A
B
C
D
D
E
F
G
H
a1
b1
c1
1
1
e1
f1
g1
h1
a2
b2
c2
1
1
e1
f1
g1
h1
a3
b3
c3
2
NULL
NULL
NULL
NULL
NULL
a4
b4
c4
3
3
e2
f2
g2
h2
|--||||||||--|
Example
Output a list of all custimers with their bookings for October 15th, 2001:
DATA: CUSTOMER TYPE SCUSTOM,
BOOKING TYPE SBOOK.
SELECT SCUSTOMNAME SCUSTOMPOSTCODE SCUSTOM~CITY
SBOOKFLDATE SBOOKCARRID SBOOKCONNID SBOOKBOOKID
INTO (CUSTOMER-NAME, CUSTOMER-POSTCODE, CUSTOMER-CITY,
BOOKING-FLDATE, BOOKING-CARRID, BOOKING-CONNID,
BOOKING-BOOKID)
FROM SCUSTOM LEFT OUTER JOIN SBOOK
ON SCUSTOMID = SBOOKCUSTOMID AND
SBOOK~FLDATE = '20011015'
ORDER BY SCUSTOMNAME SBOOKFLDATE.
WRITE: / CUSTOMER-NAME, CUSTOMER-POSTCODE, CUSTOMER-CITY,
BOOKING-FLDATE, BOOKING-CARRID, BOOKING-CONNID,
BOOKING-BOOKID.
ENDSELECT.
If there are columns with the same name in both tables, you must distinguish between them by prefixing the field descriptor with the table name or using an alias.
Note
For the resulting set of a SELECT command with a left outer join in the FROM clause, it is generally of crucial importance whether a logical condition is in the ON or WHERE condition. Since not all of the database systems supported by SAP themselves support the standard syntax and semantics of the left outer join, the syntax has been restricted to those cases that return the same solution in all database systems:
Only a table or view may come after the JOIN operator, not another join statement.
The only logical operator allowed in the ON condition is AND.
Each comparison in the ON condition must contain a field from the right-hand table.
Comparisons in the WHERE condition must not contain a field from the right-hand table.
The ON condition must contain at least one "real" JOIN condition (a condition in which a field from tabref1 as well as from tabref2 occurs).
Note
In some cases, '*' may be specivied as the field list in the SELECT clause, and an internal table or work area is entered in the INTO clause (instead of a list of fields). If so, the fields are written to the target area from left to right in the order in which the tables appear in the llen in der FROM clause, according to the structure of each table work area. There can be gaps between the table work areas if you use an Alignment Request. For this reason, you should define the target work area with reference to the types of the database tables, as in the following example (not simply by counting the total number of fields).
Example
Example of a JOIN with more than two tables: Select all flights from Frankfurt to New York between September 10th and 20th, 2001 where there are available places, and display the name of the airline.
DATA: BEGIN OF WA,
FLIGHT TYPE SFLIGHT,
PFLI TYPE SPFLI,
CARR TYPE SCARR,
END OF WA.
SELECT * INTO WA
FROM ( SFLIGHT AS F INNER JOIN SPFLI AS P
ON FCARRID = PCARRID AND
FCONNID = PCONNID )
INNER JOIN SCARR AS C
ON FCARRID = CCARRID
WHERE P~CITYFROM = 'FRANKFURT'
AND P~CITYTO = 'NEW YORK'
AND F~FLDATE BETWEEN '20010910' AND '20010920'
AND FSEATSOCC < FSEATSMAX.
WRITE: / WA-CARR-CARRNAME, WA-FLIGHT-FLDATE, WA-FLIGHT-CARRID,
WA-FLIGHT-CONNID.
ENDSELECT.
And for all entries,
this will help u.
use of FOR ALL ENTRIES:
1. INNER JOIN
DBTAB1 <----
> DBTAB2
It is used to JOIN two DATABASE tables
having some COMMON fields.
2. Whereas
For All Entries,
DBTAB1 <----
> ITAB1
is not at all related to two DATABASE tables.
It is related to INTERNAL table.
3. If we want to fetch data
from some DBTABLE1
but we want to fetch
for only some records
which are contained in some internal table,
then we use for alll entries.
1. simple example of for all entries.
2. NOTE THAT
In for all entries,
it is NOT necessary to use TWO DBTABLES.
(as against JOIN)
3. use this program (just copy paste)
it will fetch data
from T001
FOR ONLY TWO COMPANIES (as mentioned in itab)
4
REPORT abc.
DATA : BEGIN OF itab OCCURS 0,
bukrs LIKE t001-bukrs,
END OF itab.
DATA : t001 LIKE TABLE OF t001 WITH HEADER LINE.
itab-bukrs = '1000'.
APPEND itab.
itab-bukrs = '1100'.
APPEND itab.
SELECT * FROM t001
INTO TABLE t001
FOR ALL ENTRIES IN itab
WHERE bukrs = itab-bukrs.
LOOP AT t001.
WRITE :/ t001-bukrs.
ENDLOOP.
cheers,
Hema.

Wait for while between two functions execution

Hi, Pro,
I am now using jdk1.2 to develop GUI using Swing. I need help from you to figure out how do you make program waiting for while(like sleep) between function A and function B, and still not block the screen allow user to do other thing on the screen.
like:
private void Function(){
functionA();
//wait for 30 seconds here but
functionB();
Thank you very much!!
ywang

I did put it on, but I got message as:
java.lang.InterruptedException: operation interrupted
at java.lang.Thread.sleep(Native Method)Then you're probably trying to sleep the dispatcher thread. Sleep should never be called in event handler processing. A GUI event which triggers a process taking a substantial ammount of time, like this one, should always spawn a new thread to do it and, itself, return promptly.

How can I make a server differ between two or more clients?

How can I make a server differ between two or more clients?
The clients can connect and talk to the server fine, but how can I make the server talk to one, two or all clients? i.e. what would be a good way to implement this?
Currently, the server listens for connections like this:
while (listening) {
try {
new ServerThread(this, serverSocket.accept()).start();
I guess one way would be to add the ServerThreads to a Hashtable with the client ID as key, and then get the ServerThread with the proper client ID, but this seems unnecessary complicated. Any ideas?

Complicated was perhaps the wrong word, I should have
written something like it doesn't "feel" right. Or is
this a common and good way to solve communication
between a server and multiple clients?Thats pretty much how I do it. I normally use an array or ArrayList of Sockets instead of HashTable, with [0] being the first player etc.... Then you can communicate with exactly who you want. If you want to send bytes to all of them, just send the same thing to each socket individually (or is there a better way to do this?).

Diff.between Taxinn& taxinj

hi sap guru's
can anybody give me exect diff .between Taxinn& taxinj ?which is good? and why? give me at least 2 to 3 point
in TAXINN where we creat tax code execept FTXP
regard's

TAX INN
If you are using TAXINN procedure you have to maintain separate condition record in tcode :FV11
JM01
JM02 etc
While creating purchase order the tax will be flowing based on the condition record
For all the vendor the same taxes are applicable.
currently TAXINN is commonly used
TAXINJ
In this procedure you have to maintain taxcode in FTXP.
while creating P.O taxes will be flowing from the Taxcode.
Say for Example
V1-16 %Excise duty+4%VAT +Cess
V2-8 %Excise Duty 4% VATCess
For the same vendor you can use either the taxcode V1 (or) V2
G.Ganesh Kumar

What is the exact diff between At New and On Chnage

hello all
what is the exact diff between At New and On Chnage in control breaks statements. and when shall we go for At new & when shall we go for On change on events.
Plz tell with with some code.

Hi ,
Using at new
Each time the value of c changes, the lines of code between at new and endat are executed. This block is also executed during the first loop pass or if any fields to the left of c change. Between at and endat, the numeric fields to the right of c are set to zero. The non-numeric fields are filled with asterisks (*). If there are multiple occurrences of at new, they are all executed. at end of behaves in a similar fashion.
Using the on change of Statement
Another statement you can use to perform control break processing is on change of. It behaves in a manner similar to at new.
The following points apply:
u2022     If the value of any of the variables (v1, v2, and so on) changes from one test to the next, the statements following on change of are executed.
u2022     If no change is detected and else is specified, the statements following else are executed.
on change of differs from at new in the following respects:
u2022     It can be used in any loop construct, not just loop at. For example, it can be used within select and endselect, do and enddo, or while and endwhile, as well as inside get events.
u2022     A single on change of can be triggered by a change within one or more fields named after of and separated by or. These fields can be elementary fields or field strings. If you are within a loop, these fields do not have to belong to the loop.
u2022     When used within a loop, a change in a field to the left of the control level does not trigger a control break.
u2022     When used within a loop, fields to the right still contain their original values; they are not changed to contain zeros or asterisks.
u2022     You can use else between on change of and endon.
u2022     You can use it with loop at it where . . ..
u2022     You can use sum with on change of. It sums all numeric fields except the one(s) named after of.
u2022     Any values changed within on change of remain changed after endon. The contents of the header line are not restored as they are for at and endat.
Regards,
KV

Diff between index , search help , match code

wht is Diff between index , search help , match code

Hi,
There is no difference between Search helps and match code objects.
Search helps are the Advanced concept of Match codes.
SAP Converted match codes to Search helps.
Index :
An Index is a copy of database table having few numbers of fields. This copy is always in sorted form. As we know, Sorted data would always have a speed access from a database table. Hence, we use an index for the table while reading the database records. Index also contains a pointer pointing towards actual database table so that it can access fields that are not contained in the Index
For More Information About Index :
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/profile/2007/09/19/indexinginSAP+Tables
Thanks.
Message was edited by:
Viji

Diff Between Interfaces and API

Hi to all.
Can anybody tell me , What is the basic diff between API and Interfaces ?
Thanks in advance

Hi Lalit,
Both place validation will happen. In Interface table as well as in API.
The difference you can say..for interface you have to load the data in and invoke the import program by which it will populate data in oracle apps base table. So you have to write some DML.
While in API you can simply use PLSQL record type and using that invoke API by which it will populate record in oracle apps base table.
Keep in mind both ways the validation happens. It is just the approach and some part is just for legacy data conversion.
Regards
Prashant Pathak

Diff between the Start routine and Update rules?

Hi Gurus
Diff between the Start routine and Update rules?
Thanks in advance
Raj

Hi,
Routines are like conditions or business rules that could be applied to filter the data while entering the BW system or could be used to apply certain conditions on the info objects itself.Update rule level you manipulate your data and write your start routine.
There are 4 types of routines
1. Start routine- Could be used at two levels (transfer rule level and the Update rule level)
This Start routine written at the transfer rule level helps filter the necessary data coming from the source system.
For Example: If you decide to extract data that contain only quantity greater than 500 , then you could specify the Start rouitne to achieve this.
The Start routine at the Update rule level provides similar functionality but at this point it helps direct specific data to
different data targets. For Example: If there 3 data targets being fed from the Infosource, you may want to apply some condition to each data target, like send year 2000 data ti Data target1, 2001 to data target 2 and so on. This can be achieved by using Start routine at the Update rule level
2. Transfer Routine: This feature is available at the transfer rule levels
While performing the transfer rules operation, there are 4 features available to the developers to create business rules on top pf the Infoobjects.
1. You could do a one to one mappping of the Infoobject
2. Provide a constant value
3. Include a formula
4. Write an ABAP routine.
These 4 options refers to the transfer routine
3. Update Routine:
The limitations of just having 4 options in the transfer routine is overcome at the update rule level. There are various other
sophisticated features avaialable apart from the 4 options mentioned above. These business rules could be specified pertaining to each data target.
4. Conversion Routine: It provides functionality to do Currency and unit conversion.
Regards.

Diff between versions came to the market

HI all
plz any one give me an idea about what versions came from SAP in to the market
what are the main diff between those versions example ecc5.0 new gl ,ecc6 like...
plz expalin all versions in sap and there diff activities ...
points promised all
raju

Difference between SAP Versions
Hi,
You can find the difference in release notes of each SAP version.
Here are the links.
http://help.sap.com/saphelp_47x200/helpdata/en/fc/e3003deddfae4de10000000a114084/frameset.htm
http://help.sap.com/saphelp_scm50/helpdata/en/28/b34c40cc538437e10000000a155106/frameset.htm
http://help.sap.com/saphelp_erp2005/helpdata/en/43/68805bb88f297ee10000000a422035/frameset.htm
Hope this helps.
Regards,
Rajesh Banka
Reward suitable points.
How to give points: Mark your thread as a question while creating it. In the answers you get, you can assign the points by clicking on the stars to the left. You also get a point yourself for rewarding (one per thread).

Diff between Planned Cost - Target Cost

Hi all of you,
Could you please explain me the difference between Planned Cost and Target Cost. Why do we go for the settlement of Variance (Diff between Actual cost and Target Cost).
Please give me your valuable suggestions regarding.
Thanks & Regards
Ramki

HI,
Let us say, for the product X, my planned cost through standard cost estimate is 100 Rs. This has been found through executing the t code Ck40n or Ck11n.
One more assumption is, We have created production order with quanity 10. Did Goods receipt 10 nos.
Now ,,
Planned cost is = Std cost estimate cost x Qunaity=100 x 10= 1000
Target cost: This is being used for comparison purpose. You can have many versions of cost using target cost. let us say, I want to have target version price should be equal to priliminary cost estimate instead of std cost estimate. This can be achived through customizing in t code OKV6. And production order will pick up the target cost value as per the target cost version.
This target cost field in Prod. order gets updated once you run variance calculation.
Actual cost:
Standard cost * actual qty= 100*10=1000
Settlement:
While doing GR/GI to order, the cost is captured under the production order. if there is a difference between actual and plan, that should be posted to Price diffference account.That activiry is being done at the time of settlement.
vijay

Diff between JBI and JCA & JMS

Hi,
i am new to JBI. I want what is the diff between JCA and present JBI.
any one can give some explanition and suggest some links to fine the content.
Thanks In advance
Pandu

The challenge with JCA plugins is that the plugins don't know how to talk to each other as there is no standard way for them to communicate. Also, the installation of these plugins is not standardized. JBI spec is built around the WSDL model so any plugin can talk to any other plugin in a standard fashion. The routing of these messages is taken care by the normalized message router. Similarly the spec clearly spells out a packaging model for the plugin so that it can be installed into any standard container. Furthermore, by using standard JMX mbean mechanism, you can control the state of this plugin.
Reg. the NMR implementation, the spec confines itself to a single VM. Whether NMR is built on top of a message broker or a simple router like what we have in Open ESB is up to the implementation choice.
While a JMS based routing works for some of the configurations, requiring JMS for every routing decision is not optimal.
Suresh

Diff between transfer and updare routine

Hi Dudes,
can u plz explain me.. wt is the diff between tranfer routine and update routine. and give my any suitable examples.. plz take a scenario and explain it..
regards
Rekha

Hi rekha,
these routine u write for individual IOs. while extracting data from any source and before loading in any target the source values can be changed by writing these.
in Transfer rules it is like global ..the data stored in PSA also. But if u write in Update Rules ..it stored in Data Target.
so if u want to use more than one datatarget for one the source data has to change and for other datatarget the source values should come as it is. In this scenario u use these routines.
Assign points if it helps..
Regards,
ARK

In LSMW, what is diff between LSMW-BAPI and LSMW-IDOC

hello all
In LSMW, what is diff between LSMW-BAPI and LSMW-IDOC

Hi Swamy,
The differences between IDoc and BAPI are as follows:
IDOC
IDocs are text encoded documents with a rigid structure that are used to exchange data between R/3 and a foreign system.
Idocs are processed asynchronously and no information whatsoever is returned to the client.
The target system need not be always online. The IDOC would be created and would send the IDOC once the target system is available (tRFC concept). Hence supports guaranteed delivery.
With asynchronous links the sub-process on the client can be finished even if the communication line or the server is not available. In this case the message is stored in the database and the communication can be done later.
The disadvantage of asynchronous links is that the sub-process on the server cannot return information to the calling sub-process on the client. A special way for sending information back to the client is required. In addition, a special error handling mechanism is required to handle errors on the receiving side.
IDOCs may be more changeable from release to release.
IDOCs are poorly documented.
BAPI
BAPIs are a subset of the RFC-enabled function modules, especially designed as Application Programming Interface (API) to the SAP business object, or in other words: are function modules officially released by SAP to be called from external programs.
BAPIs are called synchronously and (usually) return information.
For BAPIs the client code needs to do the appropriate error handling.
Problems with synchronous links occur if the communication line or the server is temporarily not available. If this happens, the sub-process on the client cannot be finished (otherwise there would be data inconsistencies).
Synchronous links have the advantage that the sub-process on the server can return values to the sub-process on the client that has started the link.
BAPIs are not totally immune to upgrades.
BAPIs are reasonably well documented.
Reward points if useful.
Best Regards,
Sekhar

Diff between programme BBP_GET_STATUS_2 & CLEAN_REQREQ_UP in SRM7.0

Hi Experts ,
We have ECC6.04 with SRM 7.0 with Classic Scenarion
I am confused over exactly what BBP_GET_STATUS_2 do in SRM ?
I believe CLEAN_REQREQ_UP update the SC with follow on document i..e Classic PO....
and BBP_GET_STATUS_2 update the entries in BBP_DOCUMENT_TAB..but not getting exactly what is does..since if we change qty in Classic Po ..it automatically updates automatically in SC follow on document...if we Craete GR in ECC it updates automatically in SC follow on document...
Can anyone please suggest me exactly what BBP_GET_STATUS_2 do in SRM ( what is exact diff between both )?
Thanks
NAP

Hello,
Report : BBP_GET_STATUS_2
Function : This reports updates the requirement coverage requests (Shopping carts) to ensure that information on the status of backedn purchase requisitions, purchase orders, and reservations is up-to-date.
You should schedule this report to run daily in the SRM server system.
Report : CLEAN_REQREQ_UP
Function : Interval for update check.
Updating of documents (purchase requisitions, purchase orders, reservations) is executed asynchronously in the backend system. You can only process the requirement coverage request in the SRM server system further after the update has been carried out. At the interval defined by you in Customizing, the system checks whether the documents have been updated and thus if you can further process the requirement coverage request.You should schedule this report periodically.
Hope this helps.
Best Regards,
Rahul

Diff between for & while

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