What's the usage of package interface?

Hi Experts:
Who knows what the usage of package interface is? How to use it in ABAP development?

Process File: jusched or jusched.exe
Process Name: Sun Java Update Scheduler
Description: Application that is an update scheduler. The application checks the Sun site to see if newer Java versions are available.
I hope this helps.
Thanks,
Rashmi.

Similar Messages

What is usage of package interface?

Hi Experts:
Who knows what the usage of package interfce is？ How to use it in development.

Use
From the outside, a package looks like a "black box." To make packages visible from the outside so that they can be used, you define package interfaces. Only those package elements that have been added to an interface can be used by other packages. Packages make their services available to other packages using interfaces.
Prerequisites
You have opened the relevant package in the Package Builder.
Procedure
To create a package interface:
Make sure you are in Change mode.
Choose the Package interfaces tab.
Choose Add.
The system displays the Create package interface dialog box.
Enter a name and short description for the interface.
Choose to confirm your entries.
Save your entries ().
In the dialog box that appears, assign a transport request.
Result
You have created an interface for the package. Each interface you create is an independent transport object, separate from the package.
You can also add package elements to the interface to make the elements in it visible to other packages.
package inerfaces play a important role in advanced ABAP technogies
such as
ABAP OBJECTS
DYNPRO
for detailed information packages interfaces
follow thelink
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/6066fbe8-edc4-2910-9584-a9601649747d
<REMOVED BY MODERATOR>
Edited by: Alvaro Tejada Galindo on Feb 22, 2008 2:39 PM

What's the usage of function dbms_standard.client_ip_address of sys?

OS:RH71
ORACLE RELEASE 8.1.7
what's the usage of function dbms_standard.client_ip_address of
sys? THX.

Johnny.Danger wrote:
We have a somewhat mini scale network. We have anywhere from 40 to 60 ranging from WLan and Lan devices. Right now we have been using opendns for content filtering but we would like to limit certain sites to just certain groups and if someone goes onto a site they shouldn't then what we would like to know is the IP of the user and there mac address If we could somehow find a captive portal software or hardware that would be perfect because it takes a lot of guess work out of things. We use Apple Wireless router's and run 2 server's one running Mac OSX Server 10.6.7 and a 2nd server running the same which act's as our OD replica
So my question is what do you guys use?
Were looking for the more user friendly the better and by that i mean I don't want to be using ww-rt on some router or something
Thank you for your time.
Have a look at Vicomsoft and their Intergate Inspect package. This runs on a Mac server and lets you link to Open Directory for authenticating users and lets you set filtering for users or for groups of users. Sounds exactly what you want.
See http://www.vicomsoft.com/products/filter/index.html

What is the best security package for an imac using yosimity

What is the best security package for an imac using Yosimity

Mac users often ask whether they should install "anti-virus" software. The answer usually given on ASC is "no." The answer is right, but it may give the wrong impression that there is no threat from what are loosely called "viruses." There is a threat, and you need to educate yourself about it.
1. This is a comment on what you should—and should not—do to protect yourself from malicious software ("malware") that circulates on the Internet and gets onto a computer as an unintended consequence of the user's actions. It does not apply to software, such as keystroke loggers, that may be installed deliberately by an intruder who has hands-on access to the computer, or who has been able to take control of it remotely. That threat is in a different category, and there's no easy way to defend against it.
The comment is long because the issue is complex. The key points are in sections 5, 6, and 10.
OS X now implements three layers of built-in protection specifically against malware, not counting runtime protections such as execute disable, sandboxing, system library randomization, and address space layout randomization that may also guard against other kinds of exploits.
2. All versions of OS X since 10.6.7 have been able to detect known Mac malware in downloaded files, and to block insecure web plugins. This feature is transparent to the user. Internally Apple calls it "XProtect."
The malware recognition database used by XProtect is automatically updated; however, you shouldn't rely on it, because the attackers are always at least a day ahead of the defenders.
The following caveats apply to XProtect:
☞ It can be bypassed by some third-party networking software, such as BitTorrent clients and Java applets.
☞ It only applies to software downloaded from the network. Software installed from a CD or other media is not checked.
As new versions of OS X are released, it's not clear whether Apple will indefinitely continue to maintain the XProtect database of older versions such as 10.6. The security of obsolete system versions may eventually be degraded. Security updates to the code of obsolete systems will stop being released at some point, and that may leave them open to other kinds of attack besides malware.
3. Starting with OS X 10.7.5, there has been a second layer of built-in malware protection, designated "Gatekeeper" by Apple. By default, applications and Installer packages downloaded from the network will only run if they're digitally signed by a developer with a certificate issued by Apple. Software certified in this way hasn't necessarily been tested by Apple, but you can be reasonably sure that it hasn't been modified by anyone other than the developer. His identity is known to Apple, so he could be held legally responsible if he distributed malware. That may not mean much if the developer lives in a country with a weak legal system (see below.)
Gatekeeper doesn't depend on a database of known malware. It has, however, the same limitations as XProtect, and in addition the following:
☞ It can easily be disabled or overridden by the user.
☞ A malware attacker could get control of a code-signing certificate under false pretenses, or could simply ignore the consequences of distributing codesigned malware.
☞ An App Store developer could find a way to bypass Apple's oversight, or the oversight could fail due to human error.
Apple has taken far too long to revoke the codesigning certificates of some known abusers, thereby diluting the value of Gatekeeper and the Developer ID program. Those lapses don't involve App Store products, however.
For the reasons given, App Store products, and—to a lesser extent—other applications recognized by Gatekeeper as signed, are safer than others, but they can't be considered absolutely safe. "Sandboxed" applications may prompt for access to private data, such as your contacts, or for access to the network. Think before granting that access. Sandbox security is based on user input. Never click through any request for authorization without thinking.
4. Starting with OS X 10.8.3, a third layer of protection has been added: a "Malware Removal Tool" (MRT). MRT runs automatically in the background when you update the OS. It checks for, and removes, malware that may have evaded the other protections via a Java exploit (see below.) MRT also runs when you install or update the Apple-supplied Java runtime (but not the Oracle runtime.) Like XProtect, MRT is effective against known threats, but not against unknown ones. It notifies you if it finds malware, but otherwise there's no user interface to MRT.
5. The built-in security features of OS X reduce the risk of malware attack, but they are not, and never will be, complete protection. Malware is a problem of human behavior, not machine behavior, and no technological fix alone is going to solve it. Trusting software to protect you will only make you more vulnerable.
The best defense is always going to be your own intelligence. With the possible exception of Java exploits, all known malware circulating on the Internet that affects a fully-updated installation of OS X 10.6 or later takes the form of so-called "Trojan horses," which can only have an effect if the victim is duped into running them. The threat therefore amounts to a battle of wits between you and Internet criminals. If you're better informed than they think you are, you'll win. That means, in practice, that you always stay within a safe harbor of computing practices. How do you know when you're leaving the safe harbor? Below are some warning signs of danger.
Software from an untrustworthy source
☞ Software with a corporate brand, such as Adobe Flash Player, doesn't come directly from the developer’s website. Do not trust an alert from any website to update Flash, or your browser, or any other software. A genuine alert that Flash is outdated and blocked is shown on this support page. Follow the instructions on the support page in that case. Otherwise, assume that the alert is fake and someone is trying to scam you into installing malware. If you see such alerts on more than one website, ask for instructions.
☞ Software of any kind is distributed via BitTorrent, or Usenet, or on a website that also distributes pirated music or movies.
☞ Rogue websites such as Softonic, Soft32, and CNET Download distribute free applications that have been packaged in a superfluous "installer."
☞ The software is advertised by means of spam or intrusive web ads. Any ad, on any site, that includes a direct link to a download should be ignored.
Software that is plainly illegal or does something illegal
☞ High-priced commercial software such as Photoshop is "cracked" or "free."
☞ An application helps you to infringe copyright, for instance by circumventing the copy protection on commercial software, or saving streamed media for reuse without permission. All "YouTube downloaders" are in this category, though not all are necessarily malicious.
Conditional or unsolicited offers from strangers
☞ A telephone caller or a web page tells you that you have a “virus” and offers to help you remove it. (Some reputable websites did legitimately warn visitors who were infected with the "DNSChanger" malware. That exception to this rule no longer applies.)
☞ A web site offers free content such as video or music, but to use it you must install a “codec,” “plug-in,” "player," "downloader," "extractor," or “certificate” that comes from that same site, or an unknown one.
☞ You win a prize in a contest you never entered.
☞ Someone on a message board such as this one is eager to help you, but only if you download an application of his choosing.
☞ A "FREE WI-FI !!!" network advertises itself in a public place such as an airport, but is not provided by the management.
☞ Anything online that you would expect to pay for is "free."
Unexpected events
☞ A file is downloaded automatically when you visit a web page, with no other action on your part. Delete any such file without opening it.
☞ You open what you think is a document and get an alert that it's "an application downloaded from the Internet." Click Cancel and delete the file. Even if you don't get the alert, you should still delete any file that isn't what you expected it to be.
☞ An application does something you don't expect, such as asking for permission to access your contacts, your location, or the Internet for no obvious reason.
☞ Software is attached to email that you didn't request, even if it comes (or seems to come) from someone you trust.
I don't say that leaving the safe harbor just once will necessarily result in disaster, but making a habit of it will weaken your defenses against malware attack. Any of the above scenarios should, at the very least, make you uncomfortable.
6. Java on the Web (not to be confused with JavaScript, to which it's not related, despite the similarity of the names) is a weak point in the security of any system. Java is, among other things, a platform for running complex applications in a web page, on the client. That was always a bad idea, and Java's developers have proven themselves incapable of implementing it without also creating a portal for malware to enter. Past Java exploits are the closest thing there has ever been to a Windows-style virus affecting OS X. Merely loading a page with malicious Java content could be harmful.
Fortunately, client-side Java on the Web is obsolete and mostly extinct. Only a few outmoded sites still use it. Try to hasten the process of extinction by avoiding those sites, if you have a choice. Forget about playing games or other non-essential uses of Java.
Java is not included in OS X 10.7 and later. Discrete Java installers are distributed by Apple and by Oracle (the developer of Java.) Don't use either one unless you need it. Most people don't. If Java is installed, disable it—not JavaScript—in your browsers.
Regardless of version, experience has shown that Java on the Web can't be trusted. If you must use a Java applet for a task on a specific site, enable Java only for that site in Safari. Never enable Java for a public website that carries third-party advertising. Use it only on well-known, login-protected, secure websites without ads. In Safari 6 or later, you'll see a padlock icon in the address bar when visiting a secure site.
Stay within the safe harbor, and you’ll be as safe from malware as you can practically be. The rest of this comment concerns what you should not do to protect yourself.
7. Never install any commercial "anti-virus" (AV) or "Internet security" products for the Mac, as they are all worse than useless. If you need to be able to detect Windows malware in your files, use one of the free security apps in the Mac App Store—nothing else.
Why shouldn't you use commercial AV products?
☞ To recognize malware, the software depends on a database of known threats, which is always at least a day out of date. This technique is a proven failure, as a major AV software vendor has admitted. Most attacks are "zero-day"—that is, previously unknown. Recognition-based AV does not defend against such attacks, and the enterprise IT industry is coming to the realization that traditional AV software is worthless.
☞ Its design is predicated on the nonexistent threat that malware may be injected at any time, anywhere in the file system. Malware is downloaded from the network; it doesn't materialize from nowhere. In order to meet that nonexistent threat, commercial AV software modifies or duplicates low-level functions of the operating system, which is a waste of resources and a common cause of instability, bugs, and poor performance.
☞ By modifying the operating system, the software may also create weaknesses that could be exploited by malware attackers.
☞ Most importantly, a false sense of security is dangerous.
8. An AV product from the App Store, such as "ClamXav," has the same drawback as the commercial suites of being always out of date, but it does not inject low-level code into the operating system. That doesn't mean it's entirely harmless. It may report email messages that have "phishing" links in the body, or Windows malware in attachments, as infected files, and offer to delete or move them. Doing so will corrupt the Mail database. The messages should be deleted from within the Mail application.
An AV app is not needed, and cannot be relied upon, for protection against OS X malware. It's useful, if at all, only for detecting Windows malware, and even for that use it's not really effective, because new Windows malware is emerging much faster than OS X malware.
Windows malware can't harm you directly (unless, of course, you use Windows.) Just don't pass it on to anyone else. A malicious attachment in email is usually easy to recognize by the name alone. An actual example:
London Terror Moovie.avi [124 spaces] Checked By Norton Antivirus.exe
You don't need software to tell you that's a Windows trojan. Software may be able to tell you which trojan it is, but who cares? In practice, there's no reason to use recognition software unless an organizational policy requires it. Windows malware is so widespread that you should assume it's in every email attachment until proven otherwise. Nevertheless, ClamXav or a similar product from the App Store may serve a purpose if it satisfies an ill-informed network administrator who says you must run some kind of AV application. It's free and it won't handicap the system.
The ClamXav developer won't try to "upsell" you to a paid version of the product. Other developers may do that. Don't be upsold. For one thing, you should not pay to protect Windows users from the consequences of their choice of computing platform. For another, a paid upgrade from a free app will probably have all the disadvantages mentioned in section 7.
9. It seems to be a common belief that the built-in Application Firewall acts as a barrier to infection, or prevents malware from functioning. It does neither. It blocks inbound connections to certain network services you're running, such as file sharing. It's disabled by default and you should leave it that way if you're behind a router on a private home or office network. Activate it only when you're on an untrusted network, for instance a public Wi-Fi hotspot, where you don't want to provide services. Disable any services you don't use in the Sharing preference pane. All are disabled by default.
10. As a Mac user, you don't have to live in fear that your computer may be infected every time you install software, read email, or visit a web page. But neither can you assume that you will always be safe from exploitation, no matter what you do. Navigating the Internet is like walking the streets of a big city. It can be as safe or as dangerous as you choose to make it. The greatest harm done by security software is precisely its selling point: it makes people feel safe. They may then feel safe enough to take risks from which the software doesn't protect them. Nothing can lessen the need for safe computing practices.

What is the usage of for all entries ?

What is the Usage of read table after using for all entries ?
In the following example what exactly it is doing ?
Usage of 'for all entries' in Select Statement
FORM data_retrieval.
DATA: ld_color(1) TYPE c.
DATA: BEGIN OF T_VBAP OCCURS 0,
        VBELN LIKE VBAP-VBELN,
        MATNR LIKE VBAP-MATNR,
        POSNR LIKE VBAP-POSNR,
        END OF T_VBAP.
DATA: BEGIN OF T_VBFA OCCURS 0,
        VBELV LIKE VBFA-VBELV,
        VBELN LIKE VBFA-VBELN,
        VBTYP_N LIKE VBFA-VBTYP_N,
        END OF T_VBFA.
DATA: BEGIN OF T_VBAK OCCURS 0,
        VBELN LIKE VBAK-VBELN,
        IHREZ LIKE VBAK-IHREZ,
        END OF T_VBAK.
DATA: BEGIN OF T_KNA1 OCCURS 0,
        KUNNR LIKE KNA1-KUNNR,
        NAME1 LIKE KNA1-NAME1,
        END OF T_KNA1.
   DATA: BEGIN OF T_MAKT OCCURS 0,
        MATNR LIKE MAKT-MATNR,
        MAKTX LIKE MAKT-MAKTX,
        END OF T_MAKT.
SELECT likpvbeln likplifex likpbldat likpwadat likpwadat_ist likpkodat likp~lfart
         likpkunnr likpvstel lipsposnv lipslfimg lipsvrkme lipslgmng lips~meins
         lipswerks lipslgort lipscharg lipsvbelv lipsposnr lipsmatnr
         lipsvbeln LIPSVGBEL LIPSVGPOS vbupkosta vbupwbsta vbupposnr vbup~vbeln
          VBAKIHREZ VBAKVBELN VBAP~VBELN
     INTO CORRESPONDING FIELDS OF TABLE it_itab
    FROM ( likp
           INNER JOIN lips
           ON lipsvbeln = likpvbeln
           INNER JOIN vbup
           ON vbupposnr = lipsposnr
           and VBUPVBELN = LIPSVBELN )
          left outer join VBAK
          on VBAKVBELN = LIPSVGBEL
          inner join VBAP
          on VBAPVBELN = VBAKVBELN )
         WHERE likp~vbeln IN so_vbeln
           AND likp~lifex IN so_lifex
           AND likp~lfart IN so_lfart
           AND likp~kunnr IN so_kunnr
           AND likp~vstel IN so_vstel
           AND likp~bldat IN so_bldat
           AND likp~wadat_ist IN so_wadat
           AND vbup~kosta IN so_kosta
           AND vbup~wbsta IN so_wbsta
           AND LIPS~LFIMG NE 0.
SELECT VBELN IHREZ INTO TABLE T_VBAK
FROM VBAK
FOR ALL ENTRIES IN IT_ITAB
WHERE VBELN = IT_ITAB-VGBEL.
APPEND T_VBAK.
ENDSELECT.
SELECT VBELN MATNR POSNR INTO TABLE T_VBAP
FROM VBAP
FOR ALL ENTRIES IN IT_ITAB
WHERE VBELN = IT_ITAB-VGBEL AND
        MATNR = IT_ITAB-MATNR AND
        POSNR = IT_ITAB-VGPOS.
APPEND T_VBAP.
ENDSELECT.
SELECT VBELV VBELN VBTYP_N INTO TABLE T_VBFA
FROM VBFA
FOR ALL ENTRIES IN IT_ITAB
WHERE VBELV = IT_ITAB-VBELN AND
        VBTYP_N = 'M' .
SELECT KUNNR NAME1 INTO TABLE T_KNA1
FROM KNA1
FOR ALL ENTRIES IN IT_ITAB
WHERE KUNNR = IT_ITAB-KUNNR.
APPEND T_KNA1.
ENDSELECT.
SELECT MATNR MAKTX INTO TABLE T_MAKT
FROM MAKT
FOR ALL ENTRIES IN IT_ITAB
WHERE MATNR = IT_ITAB-MATNR.
APPEND T_MAKT.
ENDSELECT.
*Populate field with color attributes
LOOP AT it_itab INTO wa_ITAB.
Populate color variable with colour properties
Char 1 = C (This is a color property)
Char 2 = 3 (Color codes: 1 - 7)
Char 3 = Intensified on/off ( 1 or 0 )
Char 4 = Inverse display on/off ( 1 or 0 )
i.e. wa_ekko-line_color = 'C410'
    REFRESH color.
    colourize 'VBELN' 0. " .
    WA_ITAB-farbe = color[].
    ld_color = ld_color + 1.
Only 7 colours so need to reset color value
    IF ld_color = 3. "8
      ld_color = 1.
    ENDIF.
    CONCATENATE 'C' ld_color '10' INTO wa_ITAB-line_color.
    WA_ITAB-NAME1 = ''.
    WA_ITAB-MAKTX = ''.
    WA_ITAB-IHREZ = ''.
    WA_ITAB-VBELV = ''.
    READ TABLE T_KNA1 WITH KEY KUNNR = WA_ITAB-KUNNR.
    IF SY-SUBRC = 0.
       WA_ITAB-NAME1 = T_KNA1-NAME1.
    ENDIF.
    READ TABLE T_MAKT WITH KEY MATNR = WA_ITAB-MATNR.
    IF SY-SUBRC = 0.
    WA_ITAB-MAKTX = T_MAKT-MAKTX.
    ENDIF.
    READ TABLE T_VBAK WITH KEY VBELN = WA_ITAB-VGBEL.
    IF SY-SUBRC = 0.
    WA_ITAB-IHREZ = T_VBAK-IHREZ.
    ENDIF.
    READ TABLE T_VBFA WITH KEY VBELV = WA_ITAB-VBELN.
    IF SY-SUBRC = 0.
    WA_ITAB-VBELVA = T_VBFA-VBELN.
    ENDIF.
   READ TABLE T_VBAP WITH KEY VBELN = WA_ITAB-VGBEL
                              POSNR = WA_ITAB-VGPOS
                              MATNR = WA_ITAB-MATNR.
   IF SY-SUBRC = 0.
   WA_ITAB-IHREZ = T_VBAK-IHREZ.
   ENDIF.
wa_ekko-line_color = 'C410'.
    MODIFY it_itab FROM wa_itab.
ENDLOOP.
ENDFORM. " data_retrieval

hi Jyotirmoy,
The explanation below can give u an idea of wat is going in ur code..
Use of FOR ALL Entries
Outer join can be created using this addition to the where clause in a select statement. It speeds up the performance tremendously, but the cons of using this variation are listed below
Duplicates are automatically removed from the resulting data set. Hence care should be taken that the unique key of the detail line items should be given in the select statement.
If the table on which the For All Entries IN clause is based is empty, all rows are selected into the destination table. Hence it is advisable to check before-hand that the first table is not empty.
If the table on which the For All Entries IN clause is based is very large, the performance will go down instead of improving. Hence attempt should be made to keep the table size to a moderate level.
Not Recommended
            Loop at int_cntry.
             Select single * from zfligh into int_fligh
             where cntry = int_cntry-cntry.
             Append int_fligh.
            Endloop.
Recommended
            Select * from zfligh appending table int_fligh
            For all entries in int_cntry
            Where cntry = int_cntry-cntry.
Thankyou,
Regards.

What is the diffrence between package javax.sql and java.sql

Is javax designed for J2EE?
And when to use package javax?

Hi,
What is the diffrence between package javax.sql and java.sql?The JDBC 2.0 & above API is comprised of two packages:
1.The java.sql package and
2.The javax.sql package.
java.sql provides features mostly related to client
side database functionalities where as the javax.sql
package, which adds server-side capabilities.
You automatically get both packages when you download the JavaTM 2 Platform, Standard Edition, Version 1.4 (J2SETM) or the JavaTM 2, Platform Enterprise Edition, Version 1.3 (J2EETM).
For further information on this please visit our website at http://java.sun.com/j2se/1.3/docs/guide/jdbc/index.html
Hope this helps.
Good Luck.
Gayam.Srinivasa Reddy
Developer Technical Support
Sun Micro Systems
http://www.sun.com/developers/support/

What is the usage of START_FORM and OPEN_FORM

Hi,
In sap script,exactly what is the usage of START_FORM,OPEN_FORM,CLOSE_FORM and END_FORM.Could you please help out.
Thanks,
Madhu

Hai Madhu
For START_FORM
SAPscript: Start a form
The layout set can be changed in the current print procedure with START_FORM. It is therefore possible to combine several different layout sets in one printer output. Before a new layout set is opened with START_FORM, an open layout set must be closed with END_FORM.
Parameters
ARCHIVE_INDEX
FORM
LANGUAGE
STARTPAGE
PROGRAM
MAIL_APPL_OBJECT
LANGUAGE
Exceptions
FORM
FORMAT
UNENDED
UNOPENED
UNUSED
SPOOL_ERROR
CODEPAGE
For OPEN_FORM
SAPscript: Open form printing
The module OPEN_FORM opens layout set printing. This function must be called up before you can work with other layout set functions (WRITE_FORM, ...).
It is not obligatory to enter a layout set name to open it. If a layout set is not specified, one must be opened with START_FORM.
For information on DEVICE MAIL see function module SO_NEW_DOCUMENT_SEND_API1
Parameters
APPLICATION
ARCHIVE_INDEX
ARCHIVE_PARAMS
DEVICE
DIALOG
FORM
LANGUAGE
OPTIONS
MAIL_SENDER
MAIL_RECIPIENT
MAIL_APPL_OBJECT
RAW_DATA_INTERFACE
SPONUMIV
LANGUAGE
NEW_ARCHIVE_PARAMS
RESULT
Exceptions
CANCELED
DEVICE
FORM
OPTIONS
UNCLOSED
MAIL_OPTIONS
ARCHIVE_ERROR
INVALID_FAX_NUMBER
MORE_PARAMS_NEEDED_IN_BATCH
SPOOL_ERROR
CODEPAGE
For CLOSE_FORM
SAPscript: End layout set printing
Form printing started with OPEN_FORM is completed. Possible closing operations on the form last opened are carried out.
Form printing must be completed by this function module. If this is not carried out, nothing is printed or displayed on the screen.
Parameters
RESULT
RDI_RESULT
OTFDATA
Exceptions
UNOPENED
BAD_PAGEFORMAT_FOR_PRINT
SEND_ERROR
SPOOL_ERROR
CODEPAGE
For END_FORM
SAPscript: Terminate a form
Closes the current layout set. Final operations required on this layout set are carried out.
CAUTION: END_FORM is not a replacement for CLOSE_FORM.
Parameters
RESULT
Exceptions
UNOPENED
BAD_PAGEFORMAT_FOR_PRINT
SPOOL_ERROR
CODEPAGE
Thanks & regards
Sreenivasulu P

What is the significance of Marker interface? Why are we using, even though

What is the significance of Marker interface? Why are we using, even though it has no method?

Well, what's the significance of an interface? They can define a set of methods a class may implement but the class could equally well implement these methods without the interface so why having interfaces at all?
The answer is that the most important aspect of an interface is that it constitutes a type (you can declare variables of it). And it's a type regardless of how many methods it defines, including none. So the reason for having a marker interface is that you're interested solely in the type aspect of interfaces.

What does the usage of CURSOR word mean in an SQL statement?

Hey folks,
Please check out the following query and do please explain me what does the usage of CURSOR keyword in an SQL statement mean.
select deptno,cursor(select ename from emp a where a.deptno=b.deptno) from dept b;
well, the output was like this,
DEPTNO CURSOR(SELECTENAMEFR
10 CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
ENAME
CLARK
KING
20 CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
ENAME
SMITH
JONES
SCOTT
ADAMS
FORD
30 CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
ENAME
ALLEN
WARD
MARTIN
BLAKE
TURNER
JAMES
6 rows selected.
40 CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
no rows selected
Your favour'll be deeply appreciated.
Cheers,
PCZ

This returns a non-square result set. Each row of the result is a deptno and then a result set of the enames in that deptno.
This can be useful when you need to send a lot of data to a client application in a single query that would otherwise contain a lot of redundancy. It tends to be a relatively unusual construct (I've only found one situation where it was appropriate in my career) and requires some relatively sophisticated understanding on both the database and client sides.
Justin

What is the use of Marker Interfaces?

What is the use of marker interfaces?
As it is not having any methods or fileds what is the benefit I will get by implementing those interfaces?
Servlet implements SingleThread
What it will do behind the scenes exactly as singleThread model is marker interface

The use of marker interfaces is to act as markers (shock horror)
It is quite a common way to tell a program what a class can/can't do: Cloneable, Serializable etc etc
This doesn't change the functionality of the class itself, but is more an indication as to what can be done with this class.
In this case the servlet container can then tell whether or not it implements the interface, and can treat it accordingly. Implementing this interface tells the container you want it to run this servlet in singleThreaded mode.
Thats all there is to it.
It would be along the lines of
Servlet servlet = loadServlet("...")
if (servlet instanceof SingleThreadModel){
// Single threaded servlet - start new process for it
else {
// regular servlet - reuse existing object.

What are the components & support package levels required in 4.7 to extract

Hi All,
In my landscape we have ECC 6.0 and 4.7EE, as of now we are extracting data from ECC 6.0 to BI 7.0.Now we have requirement to extract data from 4.7EE.
Could you please suggest me what are the components & support package levels required in 4.7 to extract data from BI 7.0
i am copying current compnents and support package level below
SAP_BASIS            620        | 0065 | SAPKB62065           | SAP Basis Component                                         |
SAP_ABA              620        | 0065 | SAPKA62065           | Cross-Application Component                                 |
SAP_APPL             470        | 0025 | SAPKH47025           | Logistics and Accounting                                    |
SAP_HR                 470        | 0113 | SAPKE470B3           | Human Resources
ABA_PLUS            | 100        | 0009 | SAPKGPBA09           | PLUGIN ZU ABA_PLUS                                          |
EA-IPPE                  200        | 0013 | SAPKGPIB13           | EA-IPPE 200 : Add-On Installation                           |
PI                   | 2004_1_470 | 0001 | SAPKIPZI51           | R/3 Plug-In (PI) 2004.1 for R/3 Enterpri                    |
PI_BASIS             | 2004_1_620 | 0003 | SAPKIPYI53           | Basis Plug-In (PI_BASIS) 2004_1_620                         |
ST-PI                | 2008_1_620 | 0000 |      -               | SAP Solution Tools Plug-In                                  |
EA-APPL              | 200        | 0007 | SAPKGPAB07           | SAP R/3 Enterprise PLM, SCM, Financials                     |
EA-DFPS              | 200        | 0007 | SAPKGPDB07           | SAP R/3 ENTERPRISE DFPS                                     |
EA-FINSERV           | 200        | 0007 | SAPKGPFB07           | SAP R/3 Enterprise Financial Services                       |
EA-GLTRADE           | 200        | 0007 | SAPKGPGB07           | SAP R/3 Enterprise Global Trade                             |
EA-HR                | 200        | 0011 | SAPKGPHB11           | SAP R/3 Enterprise HR Extension                             |
EA-PS                | 200        | 0007 | SAPKGPPB07           | SAP R/3 Enterprise Public Services                          |
EA-RETAIL            | 200        | 0007 | SAPKGPRB07           | SAP R/3 Enterprise Retail
Thanks & regards
Mani.
Edited by: manohar kumar on Nov 18, 2010 7:36 AM

Hi,
As far as my view there is no such dependancy as our customers are running in same Environemnt (R/3 4.7 EE and BI 7.0) .
Are you facing any problem durng extraction or its just a proactive approarch .
I hope extraction will work with your current landscape.
Regards,

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