ABAP System Fields 

ABAP system fields are always available in ABAP programs. The runtime system fills them according to context. They can then be used in programs to query the system status. System fields are variables but you should always treat them as though they were constants, and only read them. If you change their values, important information for the flow of the program may be lost. In exceptional circumstances, system fields may be overwritten in an ABAP program to control the system – for example, SY-LSIND (for navigating to a detail list).

With one exception the names and data types of the system fields are stored in the ABAP Dictionary in the SYST structure and realized as components of the predefined structure SY in ABAP programs.

The system field SY-REPID is not part of SYST or SY. Instead, every program contains the predefined constants SY-REPID and SYST-REPID, which both contain the name of the corresponding program. Furthermore, there are two predefined types of the same name, SY-REPID and SYST-REPID.

All system fields are addressed using SY field name and their types using SYST field name.

 

                                                                                                                                                                                                     

Alphabetical Overview

The following table lists the definitions of the structure SYST in the ABAP Dictionary alphabetically. The character in the first column indicates how you can use the corresponding system field in ABAP programs. Name is the name of the component, Type is the Dictionary data type, and Length is the field length defined in the Dictionary. The Use column shows in which environment the system fields are set. The Description indicates the content.

  Name Type Length Use Description

ABCDE CHAR 26 Constants Alphabet (A,B,C,...)APPLI RAW 2 Obsolete  BATCH CHAR 1 Background

processingProgram runs in the background

BATZD CHAR 1 Obsolete  BATZM CHAR 1 Obsolete  BATZO CHAR 1 Obsolete  BATZS CHAR 1 Obsolete  BATZW CHAR 1 Obsolete  

BINPT CHAR 1 Batch input Program runs under batch inputBREP4 CHAR 4 Obsolete  BSPLD CHAR 1 Obsolete  CALLD CHAR 1 ABAP program Call mode of ABAP programCALLR CHAR 8 Printing lists ID for print dialog functionCCURS DEC 9 Obsolete  CCURT DEC 9 Obsolete  CDATE DATS 8 Obsolete  CFWAE CUKY 5 Internal  CHWAE CUKY 5 Internal  COLNO INT4 10 Creating lists Current column in the listCPAGE INT4 10 List processing Current page numberCPROG CHAR 40 ABAP program External procedure callCTABL CHAR 4 Obsolete  CTYPE CHAR 1 Obsolete  CUCOL INT4 10 Screens Horizontal cursor position at PAICUROW INT4 10 Screens Vertical cursor position at PAIDATAR CHAR 1 Screens Displays user inputDATLO DATS 8 Date and time Local date of userDATUM DATS 8 Date and time Current (application server) dateDAYST CHAR 1 Date and time Daylight saving time flagDBCNT INT4 10 Database accesses Number of processed table rowsDBNAM CHAR 20 ABAP program Linked logical databaseDBSYS CHAR 10 SAP System Name of central database systemDCSYS CHAR 4 Obsolete  DEBUG CHAR 1 Internal  DSNAM CHAR 8 Internal  DYNGR CHAR 4 ABAP program Screen group of current screen.DYNNR CHAR 4 ABAP program Number of current screenENTRY CHAR 72 Internal  FDAYW INT1 3 Date and time Factory calendar weekdayFDPOS INT4 10 Character strings Offset in character stringsFFILE CHAR 8 Internal  FLENG INT4 10 Internal  FMKEY CHAR 3 Obsolete  FODEC INT4 10 Internal  FOLEN INT4 10 Internal  FTYPE CHAR 1 Internal  GROUP CHAR 1 Internal  HOST CHAR 8 SAP System Name of the application serverINDEX INT4 10 Loops Current loop passINPUT CHAR 1 Internal  LANGU LANG 1 SAP System Current languageLDBPG CHAR 40 ABAP program Program of logical databaseLILLI INT4 10 List processing Selected list row

LINCT INT4 10 Creating lists Page length of listLINNO INT4 10 Creating lists Current rowLINSZ INT4 10 Creating lists Column width of listLISEL CHAR 255 List processing Content of selected rowLISTI INT4 10 List processing Index of selected listLOCDB CHAR 1 Obsolete  LOCOP CHAR 1 Obsolete  LOOPC INT4 10 Screens Number of rows visible in tableLPASS CHAR 4 Internal  LSIND INT4 10 List processing Index of detail listLSTAT CHAR 16 List processing ID for list levelsMACDB CHAR 4 Obsolete  MACOL INT4 10 Printing lists Columns from SET MARGIN

statementMANDT CLNT 3 SAP System Client number from logonMARKY CHAR 1 Obsolete  MAROW INT4 10 Printing lists Rows from SET MARGIN statementMODNO CHAR 1 SAP System Index of external modesMSGID CHAR 20 Messages Message classMSGLI CHAR 60 Messages Message lineMSGNO NUMC 3 Messages Message numberMSGTY CHAR 1 Messages Message typeMSGV1 CHAR 50 Messages Message variableMSGV2 CHAR 50 Messages Message variableMSGV3 CHAR 50 Messages Message variableMSGV4 CHAR 50 Messages Message variableNEWPA CHAR 1 Internal  NRPAG CHAR 1 Internal  ONCOM CHAR 1 Internal  OPSYS CHAR 10 SAP System Operating system of application

serverPAART CHAR 16 Print parameters Print formattingPAGCT INT4 10 Obsolete  PAGNO INT4 10 Creating lists Current page:PAUTH NUMC 2 Internal  PDEST CHAR 4 Print parameters Output devicePEXPI NUMC 1 Print parameters Retention periodPFKEY CHAR 20 Screens Current GUI statusPLAYO CHAR 5 Internal  PLAYP CHAR 1 Internal  PLIST CHAR 12 Print parameters Name of spool requestPNWPA CHAR 1 Internal  PRABT CHAR 12 Print parameters Part of cover sheetPRBIG CHAR 1 Print parameters Selection cover pagePRCOP NUMC 3 Print parameters Number of copies

PRDSN CHAR 6 Print parameters Name of spool datasetPREFX CHAR 3 Obsolete  PRI40 CHAR 1 Internal  PRIMM CHAR 1 Print parameters Print immediatelyPRINI NUMC 1 Internal  PRLOG CHAR 1 Internal  PRNEW CHAR 1 Print parameters New spool requestPRREC CHAR 12 Print parameters RecipientPRREL CHAR 1 Print parameters Delete after printPRTXT CHAR 68 Print parameters Text for cover sheetREPI2 CHAR 40 Internal  REPID CHAR 40 ABAP program Current main programRSTRT CHAR 1 Internal  RTITL CHAR 70 Print parameters Title of printing programSAPRL CHAR 4 SAP System Release status of SAP SystemSCOLS INT4 10 Screens Number of columnsSFNAM CHAR 30 Obsolete  SFOFF INT4 10 Internal  SLSET CHAR 14 Selection screens Name of variantSPONO NUMC 10 Printing lists Spool numberSPONR NUMC 10 Obsolete  SROWS INT4 10 Screens Number of rowsSTACO INT4 10 List processing First displayed columnSTARO INT4 10 List processing Uppermost displayed rowSTEPL INT4 10 Screens Index of current table rowSUBCS CHAR 1 Internal  SUBRC INT4 10 Return value Return value after ABAP statementSUBTY RAW 1 Internal  SYSID CHAR 8 SAP System Name of SAP SystemTABID CHAR 8 Internal  TABIX INT4 10 Internal tables Current row indexTCODE CHAR 20 ABAP program Current transaction codeTFDSN CHAR 8 Obsolete  TFILL INT4 10 Internal tables Current number of rowsTIMLO TIMS 6 Date and time Local time of userTITLE CHAR 70 Screens Text in header lineTLENG INT4 10 Internal tables Row sizeTLOPC INT4 10 Internal  TMAXL INT4 10 Obsolete  TNAME CHAR 30 Obsolete  TOCCU INT4 10 Obsolete  TPAGI INT4 10 Obsolete  TSTIS INT4 10 Internal  TTABC INT4 10 Obsolete  TTABI INT4 10 Obsolete  

TVAR0 CHAR 20 Creating lists Text variable for headersTVAR1 CHAR 20 Creating lists Text variable for headersTVAR2 CHAR 20 Creating lists Text variable for headersTVAR3 CHAR 20 Creating lists Text variable for headersTVAR4 CHAR 20 Creating lists Text variable for headersTVAR5 CHAR 20 Creating lists Text variable for headersTVAR6 CHAR 20 Creating lists Text variable for headersTVAR7 CHAR 20 Creating lists Text variable for headersTVAR8 CHAR 20 Creating lists Text variable for headersTVAR9 CHAR 20 Creating lists Text variable for headersTZONE INT4 10 Date and time Time difference to Greenwich Mean

TimeUCOMM CHAR 70 Screens Function code that triggered PAIULINE CHAR 255 Constants Horizontal line with length 255UNAME CHAR 12 SAP System Logon name of userUZEIT TIMS 6 Date and time Current (application server) timeVLINE CHAR 1 Constants Vertical lineWAERS CUKY 5 Obsolete  WILLI INT4 10 Obsolete  WINCO INT4 10 Obsolete  WINDI INT4 10 Obsolete  WINRO INT4 10 Obsolete  WINSL CHAR 79 Obsolete  WINX1 INT4 10 Obsolete  WINX2 INT4 10 Obsolete  WINY1 INT4 10 Obsolete  WINY2 INT4 10 Obsolete  WTITL CHAR 1 Creating lists Flag for standard page headerXCODE CHAR 70 Internal  XFORM CHAR 30 Internal  XPROG CHAR 40 Internal  ZONLO CHAR 6 Date and time Time zone of user

Key:

The system field is set by the runtime environment. Its content can be evaluated in the ABAP program but not changed.The system field is set by the runtime environment. Its content can be changed in the ABAP program to influence the runtime environment.The system field must be set in the ABAP program. It can then be evaluated by the runtime environment or the program.The system field is only for internal use and must not be used in ABAP programs.The system field is obsolete and its content is not set. It cannot be used in ABAP programs.

                                                                                                                                                                                                     

Thematic Overview

The following is a thematic summary of the system fields with notes on their use:

System information

        Information on the current SAP System

        Information on the user session

        Date and time information

        Information on the current ABAP program

        Background processing

        Batch input

ABAP programming

        Constants

        Character strings

        Loops

        Internal tables

        Database accesses

        Return value

Screens

        Screens

        Selection screens

        Lists

        Messages

Internal system fields

Obsolete system fields

                                                                                                                                                                                                     

System Information

Information on the Current SAP System

SY-DBSYS

Central database system, for example INFORMIX, ORACLE

SY-HOST

Application server, for example HS0333, PAWDF087

SY-OPSYS

Operating system of application server, for example HP-UX, SINIX

SY-SAPRL

Release status of the SAP System, for example 30D, 46A

SY-SYSID

Name of the SAP System, for example B20, I47

Information on the User Session

SY-LANGU

One-digit language key, for example D, E, F. Either logon language of user or set using the SET LOCALE LANGUAGE statement.

SY-MANDT

Client number the user logged on with, for example 000, 400.For database accesses with Open SQL, SY-MANDT is used as the first key field of the WHERE clause.

SY-MODNO

Indexes external modes. Zero in first mode. In new modes, opened using the Create Mode function or by calling a transaction using /o, it is raised by 1. If previous modes were deleted, the free numbers are used first. Modes opened using CALL TRANSACTION … STARTING NEW TASK start back at 0.

SY-UNAME

Logon name of user, for example KELLERH, BC400-01.

Date and Time Information

The following system fields are always set automatically. If necessary, the GET TIME statement synchronizes the application server time with that of the database server and writes it to the system field SY-UZEIT. SY-DATUM and the system fields for the local time zone, that is SY-TIMLO, SY-DATLO, and SY-ZONLO are also reset.

SY-DATLO

Local date of user, for example 19981129, 19990628.

SY-DATUM

Current (application server) date, for example 19981130, 19990627.

SY-DAYST

During daylight saving time X, otherwise empty.

SY-FDAYW

Factory calendar weekday, Sunday 0 … Saturday 6.

SY-TIMLO

Local time of user, for example 154353, 225312.

SY-TZONE

Time difference to Greenwich Mean Time (UTC) in seconds, for example 3600, 10800.

SY-UZEIT

Current (application server) time, for example 164353, 215312.

SY-ZONLO

Time zone of user, for example CET, UTC.

Information on the Current ABAP Program

SY-CALLD

SY-CALLD contains SPACE if the program is the first and only program in a call chain. SY_CALLD contains 'X' if the program is a called program in a call chain.

        SY-CALLD is set to ‘X‘ in a program called using CALL TRANSACTION, CALL DIALOG, or SUBMIT … AND RETURN.

        SY-CALLD is set to space in a program called using LEAVE TO TRANSACTION, entering a transaction code on a screen, and processing batch input folders.

        With SUBMIT (without RETURN) SY-CALLD retains the previous value.

SY-CPROG

In externally called procedures, the name of the calling program, otherwise the name of the current program. If an externally called procedure calls another external procedure, SY-CPROG keeps the name of the first main program and is not given the name of the main program of the further caller.

SY-DBNAM

With executable programs this is the linked logical database.

SY-DYNGR

Screen group of current screen. You can assign several screens to a common screen group. You can use this, for example, to modify all of the screens in the group in a uniform way.

SY-DYNNR

Number of current screen During the selection screen processing, SY-DYNNR contains the screen number of the current selection screen. During list processing, SY-DYNNR contains the number of the container screen. While a subscreen is being processed, SY-DYNNR contains its screen number. This also applies to tabstrips.

SY-LDBPG

With executable programs, the database program of the linked logical database.

SY-REPID

Name of current ABAP program. With externally called procedures this is the name of the procedure’s main program.

If SY-REPID was transferred to an external procedure as an actual parameter before Release 6.10, the formal parameter was not given the name of the caller, but the name of the procedure’s main program. SY-REID had to be transferred to an auxiliary variable before the call or you had to use SY-PROG.

As of Release 6.10, SY-REPID is a separate constant that is no longer part of the structure SYST or SY. It can be transferred to external procedures directly.

SY-TCODE

Name of current transaction code.

Background Processing

SY-BATCH

SY-BATCH is set to X in an ABAP program running in the background. Otherwise it is empty.

Batch Input

SY-BINPT

SY-BINPT is set to X during processing of batch input folders and in ABAP programs called with CALL TRANSACTION USING. Otherwise it is empty.

OPTIONS FROM in the CALL TRANSACTION USINGstatement can set SY-BINPT to empty for the whole program execution, as well as at the end of the BDC data.

In CATT procedures, SY-BINPT is always empty.

                                                                                                                                                                                                     

ABAP Programming

Constants

SY-ABCDE

Contains the Alphabet. Can be used to access individual letters independently of the codepage by specifying offset.

SY-ULINE

Contains a horizontal line with length 255. Can be used when creating the list.

SY-VLINE

Contains a vertical line (|). Can be used when creating the list

Loops

SY-INDEX

SY-INDEX contains the number of loop passes in DO and WHILE loops, including the current loop pass.

Character Strings

SY-FDPOS

Found location for operations with character-type fields.

        If the operators CO, CN, CA, NA, CS, NS, CP, NP are used in comparisons, SY-FDPOS is assigned offset values depending on the comparison result.

        SEARCH … FOR … sets SY-FDPOS to the offset of the found search string.

Internal Tables

SY-TABIX

Current line in an internal table. With the following statements SY-TABIX is set for index tables. With hashed tables, SY-TABIX is not filled or it is set to 0.

        APPENDsets SY-TABIX to the index of the last table row, that is the total number of entries in the target table.

        COLLECTsets SY-TABIX to the index of the existing or appended table row. With hashed tables, SY-TABIX is set to 0.

        LOOP ATsets SY-TABIX to the index of the current table row at the beginning of every loop pass. After leaving a loop, SY-TABIX is set to the value it had before entering the loop. With hashed tables, SY-TABIX is set to 0.

        READ TABLE sets SY-TABIX to the index of the table row read. If no row is found with binary search while reading, SY-TABIX contains the index of the next-highest row or the total number of rows +1. If no row is found with linear search while reading, SY-TABIX is undefined.

        SEARCH itab FOR sets SY-TABIX to the index of the table row, in which the search string was found.

SY-TFILL

With the statements DESCRIBE TABLE, LOOP AT, and READ TABLE, SY-TFILL is filled with the row number of the addressed internal table.

SY-TLENG

With the statements DESCRIBE TABLE, LOOP AT, and READ TABLE, the system fills SY-TLENG with the row size of the addressed internal table.

Database Accesses

SY-DBCNT

SQL statements set the content of SY-DBCNT to the number of database lines processed. With SELECT loops in Open SQL, SY-DBCNT is set after the ENDSELECT statement. In Native SQL, SY-DBCNT is set after the ENDEXEC statement.

        DELETEsets SY-DBCNT to the number of lines deleted.

        FETCHsets SY-DBCNT to the number of lines already read by the current cursor.

        INSERTsets SY-DBCNT to the number of lines inserted.

        MODIFYsets SY-DBCNT to the number of lines processed.

        UPDATE sets SY-DBCNT to the number of lines changed.

Return Value

SY-SUBRC

Return value set by the following ABAP statements. In general, a content of 0 means that the statement was executed without problems.

        ASSIGNsets SY-SUBRC to 0 if assignment to field symbol is possible, otherwise 4.

        ASSIGN dref->* sets SY-SUBRC to 0 if dereferencing is possible, otherwise 4.

        AUTHORITY-CHECK sets SY-SUBRC to 0 if the user has the necessary authorization, otherwise 4, 8, 12, 16, 24, 28, 32, or 36 depending on the cause.

        CALL DIALOG with USING sets SY-SUBRC to 0, if processing was successful, otherwise <>0.

        CALL FUNCTION sets SY-SUBRC according to the exception handling.

        CALL METHOD sets SY-SUBRC according to the exception handling.

        CALL SELECTION-SCREEN sets SY-SUBRC to 0 if the user chose Enter or Execute and 4 if the user chose Cancel.

        CALL TRANSACTION with USING sets SY-SUBRC to 0 if processing was successful, otherwise <>0.

        CATCH SYSTEM-EXCEPTIONS sets SY-SUBRC if there are runtime errors after the ENDCATCH statement. The value is specified in the program.

        COMMIT WORK sets SY-SUBRC to 0.

        COMMIT WORK AND WAIT sets SY-SUBRC to 0 if update was successful, otherwise <>0.

        COMMUNICATION INIT DESTINATION … RETURNCODE sets SY-SUBRC as specified.

        CONCATENATE sets SY-SUBRC to 0 if the result fits into target variable, otherwise 4.

        CREATE OBJECT sets SY-SUBRC if the exceptions of the instance constructor are handled.

        CREATE OBJECT in OLE2 sets SY-SUBRC to 0 if an external object was created, otherwise 1,2, 3 with different causes.

        DELETEsets SY-SUBRC to 0 if operation was successful, otherwise 4 or <> 0 depending on cause.

        DEMAND … MESSAGES INTO sets SY-SUBRC to 0 if a message table is empty, otherwise <> 0.

        DESCRIBE LIST sets SY-SUBRC to 0 if row or list exists, otherwise 4 or 8.

        EXEC SQL - ENDEXEC sets SY-SUBRC to 0 in almost all cases. Only if no set was read with FETCH is SY-SUBRC 4.

        FETCHsets SY-SUBRC to 0 if at least one row was read, otherwise 4.

        GENERATE SUBROUTINE POOL sets SY-SUBRC to 0 if generation was successful, otherwise 8.

        GET CURSOR sets SY-SUBRC to 0 if the cursor is correctly positioned, otherwise 4.

        GET PARAMETER sets SY-SUBRC to 0 if value found in SAP Memory, otherwise 4.

        IMPORTsets SY-SUBRC to 0 if import of data objects was successful, otherwise 4.

        INSERTsets SY-SUBRC to 0 if operation was successful, otherwise 4.

        LOAD REPORT sets SY-SUBRC to 0 if operation was successful, otherwise 4 or 8 depending on cause.

        LOOPsets SY-SUBRC to 0 if loop over extract was passed at least once, otherwise 4.

        LOOP ATsets SY-SUBRC to 0 if loop over internal table was passed at least once, otherwise 4.

        MODIFYsets SY-SUBRC to 0 if operation was successful, otherwise 4.

        MODIFY LINE sets SY-SUBRC to 0 if list row was changed, otherwise <> 0.

        MODIFYsets SY-SUBRC to 0 if operation was successful, otherwise 4.

        OLE2 automation, bundled commands set SY-SUBRC to 0 if all were successfully executed, otherwise 1, 2, 3, 4 depending on cause.

        OPEN DATASET sets SY-SUBRC to 0 if the file was opened, otherwise 8.

        Open SQL commands set SY-SUBRC to 0 if operation was successful, otherwise <>0.

        OVERLAYsets SY-SUBRC to 0 if at least one character is overlayed, otherwise 4.

        READ DATASET sets SY-SUBRC to 0 if the read operation was successful, otherwise 4 or 8 depending on cause.

        READ LINE sets SY-SUBRC to 0 if list row exists, otherwise <> 0.

        READ TABLE sets SY-SUBRC to 0 if the table row was found, otherwise 2, 4, 8 depending on cause.

        REPLACEsets SY-SUBRC to 0 if search string could be replaced, otherwise <> 0.

        ROLLBACK WORK always sets SY-SUBRC to 0.

        SCROLLsets SY-SUBRC to 0 if scrolling in list successful, otherwise 4 or 8 depending on cause.

        SEARCHsets SY-SUBRC to 0 if search string was found, otherwise 4.

        SELECTsets SY-SUBRC to 0 if at least one row was read, otherwise 4 or even 8 with SELECT SINGLE FOR UPDATE.

        SET COUNTRY sets SY-SUBRC to 0 if country ID was found in table T005X, otherwise 4.

        SET BITsets SY-SUBRC to 0 if bit was set, otherwise <> 0.

        SET TITLEBAR sets SY-SUBRC to 0 if title exists, otherwise 4.

        SHIFT … UP TO sets SY-SUBRC to 0 if position was found in character string, otherwise 4.

        SPLITsets SY-SUBRC to 0 if size of target fields is sufficient, otherwise 4.

        UPDATEsets SY-SUBRC to 0 if operation successful, otherwise 4.

        WRITE … TO sets SY-SUBRC to 0 if assignment successful, otherwise 4.

 

                                                                                                                                                                                                     

Screens

Screens

System fields are set at the PAI event for every screen. These can be also used for interactive list processing, except for SY-DATAR, SY-LOOPC, and SY-STEPL.

SY-CUCOL

Horizontal cursor position Counting starts at column 2

SY-CUROW

Vertical cursor position Counting starts at row 1

SY-DATAR

Set to X at time of PAI if at least one screen input field was changed by the user or other data transfer, otherwise empty.

SY-LOOPC

Number of rows currently displayed in a screen table (table control).

SY-PFKEY

GUI status of current screen. Can be set at PBO using SET PF-STATUS.

SY-SCOLS

Number of columns in current screen.

SY-SROWS

Number of rows in current screen.

SY-STEPL

Index of current row in a screen table (table control). Is set at every loop pass. Outside a loop, for example during the POV event for a table row, SY-STEPL is not set appropriately.

SY-TITLE

Text that appears in the title bar of the screen. For selection screens and lists this is the program name, otherwise SAP. Can be set during PBO using SET TITLEBAR.

SY-UCOMM

Function code that triggered the event PAI. Every user action that triggers PAI is assigned a unique function code, with one exception: Choosing ENTER triggers PAI and different function codes can be transferred to SY-UCOMM:

        If there is an entry in the command field of the standard toolbar, this is transferred to SY-UCOMM as the function code.

        If there is no entry in the command field and a function code is assigned to the ENTER key, this function code is transferred to SY-UCOMM.

        If the command field does not contain an entry and no function code is assigned to the ENTERkey, it is empty and the content of SY-UCOMM is not affected.

Selection Screens

SY-SLSET

Variant used to fill the selection screen.

Creating Lists

When creating a list you can use the following system fields to navigate. They help to ensure that output statements do not overwrite any existing output and that the system does not try to write outside the list. The current output position is always in the system fields SY-COLNO and SY-LINNO and is rest for every output statement. The remaining system fields contain further values for the list creation.

SY-COLNO

Current column during list creation. Counting starts at 1. SY-COLNO is set by the following output statements:

        WRITE, ULINE, SKIPset SY-COLNO to the next output position.

        BACKsets SY-COLNO to 1.

        POSITION col sets SY-COLNO to col. If collies outside the page, the subsequent output statements are ignored.

        NEW-LINE sets SY-COLNO to 1.

        NEW-PAGE sets SY-COLNO to 1.

SY-LINCT

Page length of list. SY-LINCT is 0 for a standard list of any length and has a value unequal to 0 for lists with fixed page length.

        LINE-COUNT in the statements REPORT, PROGRAM, FUNCTION POOL sets SY-LINCT for the current program.

        LINE-COUNT in the SUBMIT statement sets SY-LINCT for the called program.

SY-LINNO

Current row during the list creation. Counting begins at 1 and includes the page header. SY-LINNO is set by the following output statements:

        WRITE, ULINE, SKIPraise SY-LINNO by 1 in the case of a line break.

        BACK sets SY-LINNO to the first row after the page header. BACKin connection with RESERVE sets SY-LINNO to the first row of a block of lines.

        NEW-LINE raises SY-LINNO by 1.

        SKIP TO LINE lin sets SY-LINNO to lin. If lin does not lie between 1 and the page length, the system ignores the statement.

SY-LINSZ

Line width of list Without further influence this is the standard window width: If SY-SCOLS >= 84, SY-LINSZ = SY-SCOLS; if SY-SCOLS < 84, SY-LINSZ = 84.

To change the width of the output list, use the LINE-SIZE option of the REPORTor NEW PAGE statement.

        LINE-SIZE in the statements REPORT, PROGRAM, FUNCTION POOL sets SY-LINSZ for the current program.

        LINE-SIZE in the SUBMIT statement sets SY-LINSZ for the called program.

SY-PAGNO

Current page during the list creation.

        WRITE, ULINE, SKIPraise SY-PAGNO by 1 in the case of a line break.

        NEW-PAGE raises SY-PAGNO by 1, but only if at least one output follows both on the current page and after the NEW-PAGE statement.

        NEW-SECTION of the NEW-PAGE PRINT ON statement sets SY-PAGNO to 1.

SY-TVAR0 ... SY-TVAR9

In the program, you can assign values to these system fields. During the TOP-OF-PAGE event, the system replaces the placeholders of the program’s list and column headers with the contents of the system fields SY-TVAR0 to SYTVAR9.

SY-WTITL

Is set to N in the statements REPORT, PROGRAM, and FUNCTION-POOLif the NO STANDARD PAGE HEADING addition is used, otherwise empty. NEW-PAGE does not set SY-WTITL.

List Processing

At each interactive list event and for READ LINE, the system automatically fills the following system fields:

SY-CPAGE

Page number of the first displayed page of the list from which the event was triggered. Counting starts at 1

SY-LILLI

Line from which the event was triggered Counting begins at 1 and includes the page header.

SY-LISEL

Contents of the line from which the event was triggered

SY-LISTI

Index of the list from which the event was triggered

SY-LSIND

Index of the list that is being created (basic list: 0, detail list > 0). Each time an interactive list event occurs, the system automatically increases SY-LSIND by 1. SY-LSIND can be changed in the ABAP program to navigate between detail lists. Changes to SY-LSIND are not taken into account until the end

of the list event. Therefore, any manipulation of SY-LISND should be done using the last command of the processing block.

SY-LSTAT

ID for list levels within the program. SY-LSTAT can be filled with values during list creation in the ABAP program. The value valid when the list is completed is saved with the list. In the case of an interactive list event, SY-LSTAT is set to the value it was assigned during the creation of the list from which the event takes place. SY-LSTAT is no longer maintained and should therefore no longer be used.

SY-STACO

Number of the first displayed column of the list from which the event was triggered. Counting starts at 1.

SY-STARO

Number of the upper-most displayed row of the upper-most page of the list, from which the event was triggered. Counting begins at 1. This does not include the page header.

Printing Lists

When printing lists, the spool and runtime systems require certain internal information, which is available in the following system fields and is set during print activation.

SY-CALLR

Contains a value that displays where printing was started, for example NEW-PAGE for program-controlled printing or RSDBRUNT for printing from the selection screen.

SY-PRDSN

Contains the name of the spool file during printing.

SY-SPONO

Contains the name of the spool number during printing.

SY-MAROW, SY-MACOL

The SET MARGINstatement fills the system fields SY-MAROW and SY-MACOL, which determine the number of lines on the upper margin and the number of columns on the left margin when printing.

Print Parameters

The print parameters are transferred to the spool system by the runtime system in a structure of dictionary type PRI_PARAMS. Before this structure was used, its purpose was served by system fields. Today a subset of the PRI_PARAMS structure is still written to system fields with the same names when printing is activated. This information is redundant and should not be used.

Messages

If you execute the MESSAGE statement, the following system fields are set. If you execute the MESSAGE … RAISING statement in function modules and methods, these fields are also set in the calling program, if it handles the exception.

SY-MSGID

SY-MSGID contains the message ID.

SY-MSGNO

SY-MSGNO contains the message number.

SY-MSGTY

SY-MSGTY contains the message type.

SY-MSGV1,…,SY-MSGV4

SY-MSGV1 to SY-MSGV4 contain the field contents that are used for the message’s placeholders.

Special Actions that Fill Message Fields

        If you request database locks using the ENQUEUE function module, the field SY-MSGV1 contains the name of the user who holds the lock, in the case of the FOREIGN_LOCK exception.

        IN the case of CALL TRANSACTION or CALL DIALOG with the USING addition, a message displayed during the called screen sequence is returned in the fields SY-MSGID, SY-MSGTY, SY-MSGNO, SY-MSGV1, ... , SY-MSGV4.

        During Remote Function Call (RFC), error messages are transferred from the remote system to the calling system and SY-MSGID, SY-MSGTY, SY-MSGNO,SY-MSGV1, SY-MSGV2, SY-MSGV3, SY-MSGV4 are set. If short dumps or type X messages occur, the system also sets the fields.

 

                                                                                                                                                                                                     

Internal system fields

Internal system fields are only for internal use in the ABAP runtime environment and are defined in the kernel. Under no circumstances must they be overwritten in ABAP programs and they should also not be read (processed).

SY-CFWAE

Undocumented

SY-CHWAE

Undocumented

SY-DEBUG

Undocumented

SY-DSNAM

Name of spool output file.

SY-ENTRY

Undocumented

SY-FFILE

Flat file (USING/GENERATING DATASET).

SY-FLENG

Length of a field.

SY-FODEC

Number of decimal places of a field.

SY-FOLEN

Output length of a field.

SY-FTYPE

Data type of a field.

SY-GROUP

Bundling

SY-INPUT

Undocumented

SY-LPASS

Undocumented

SY-NEWPA

Undocumented

SY-NRPAG

Undocumented

SY-ONCOM

On Commit flag. This system field is set to different values depending on the call status of an ABAP program. Of these, only the value of ‘P’ is guaranteed. If at all, SY-ONCOM must only be queried for ‘P’.

The value 'P' means that the program is already executing a subroutine started using PERFORM … ON COMMIT and therefore a further subroutine call using PERFORM ... ON COMMIT would cause a runtime error.

SY-PAUTH

Undocumented

SY-PLAYO

Undocumented

SY-PLAYP

Undocumented

SY-PNWPA

Undocumented

SY-PRI40

Undocumented

SY-PRINI

Undocumented

SY-PRLOG

Undocumented

SY-REPI2

Undocumented

SY-RSTRT

Undocumented

SY-SFOFF

Undocumented

SY-SUBCS

Call status of an executable program.

SY-SUBTY

Call type of an executable program.

SY-TABID

Undocumented

SY-TLOPC

Undocumented

SY-TSTIS

Undocumented

SY-XCODE

Extended function code Is filled, like SY-UCOMM, by user actions on lists. Before the length of SY-UCOMM was increased from 4 to 70 characters, SY-XCODE was used internally to evaluate lengthy entries in the command field of the list’s standard toolbar. Use SY-UCOMM in application programs.

SY-XFORM

SYSTEM-EXIT subroutine.

SY-XPROG

SYSTEM-EXIT program.

                                                                                                                                                                                                     

Obsolete System Fields

In the transition from R/2 to R/3, some system fields were carried over that are no longer filled. These system fields are obsolete and can no longer be used.

SY-APPLI

In R/2, ID for which SAP applications are installed. No longer filled.

SY-BATZD

In R/2, ID for daily background scheduling. No longer filled.

SY-BATZM

In R/2, ID for monthly background scheduling. No longer filled.

SY-BATZO

In R/2, ID for single background scheduling. No longer filled.

SY-BATZS

In R/2, ID for immediate background scheduling. No longer filled.

SY-BATZW

In R/2, ID for weekly background scheduling. No longer filled.

SY-BREP4

In R/2, root name of request report for background processing. No longer filled.

SY-BSPLD

In R/2, ID for immediate spool output for background processing. No longer filled.

SY-CCURS

In R/2, rate specification/result field from CURRENCY CONVERSION. No longer filled.

SY-CCURT

In R/2, table rate from CURRENCY CONVERSION. No longer filled.

SY-CDATE

In R/2, rate date from CURRENCY CONVERSION. No longer filled.

SY-CTABL

In R/2, rate table from CURRENCY CONVERSION. No longer filled.

SY-CTYPE

In R/2, rate type from CURRENCY CONVERSION. No longer filled.

SY-DCSYS

Dialog system of R/2 System No longer filled.

SY-FMKEY

Previously, current function code menu. No longer filled.

SY-LOCDB

Local database, not implemented.

SY-LOCOP

Local database operation, not implemented.

SY-MACDB

Previously, name of file for matchcode access. No longer filled.

SY-MARKY

Current line character for the MARK statement. However, the language element MARK will only be supported for a short time.

SY-PAGCT

In R/2, maximum number of pages per list. No longer filled.

SY-PREFX

ABAP prefix for background jobs. No longer filled.

SY-SFNAM

Undocumented

SY-SPONR

In R/2, you could process spool files using the TRANSFER statement, set by SY-SPONR. No longer filled.

SY-TFDSN

Previously, name of external storage file for extracts. No longer filled.

SY-TMAXL

Previously, maximum number of entries in an internal table. No longer filled.

SY-TNAME

Previously, name of an internal table after an access. No longer filled.

SY-TOCCU

With the statements DESCRIBE TABLE, LOOP AT, and READ TABLE, SY-TOCCU was filled with the value of the initial main memory requirements for the addressed internal table. No longer filled.

SY-TPAGI

Previously, ID whether an internal table is stored in the paging area. No longer filled.

SY-TTABC

Previously, index of last read row in an internal table. No longer filled.

SY-TTABI

Previously, offset of internal tables in roll area. No longer filled.

SY-WAERS

Previously, company code currency after reading booking segment. No longer filled.

SY-WILLI

In R/2, number of selected list row for detail list in window. Use SY-LILLI.

SY-WINCO

In R/2, cursor position for detail list in window. Use SY-CUCOL.

SY-WINDI

In R/2, index of list for detail list in window. Use SY-LSIND.

SY-WINRO

In R/2, cursor position for detail list in window. Use SY-CUROW.

SY-WINSL

In R/2, content of selected row for detail list in window. Use SY-LISEL.

SY-WINX1

In R/2, window coordinate for detail list in window. No longer used.

SY-WINX2

In R/2, window coordinate for detail list in window. No longer used.

SY-WINY1

In R/2, window coordinate for detail list in window. No longer used.

SY-WINY2

In R/2, window coordinate for detail list in window. No longer used.

Data Class 

If you choose the data class correctly, your table is automatically assigned to the correct area (tablespace or DBspace) of the database when it is created. Each data class corresponds to a physical area in which all the tables assigned to this data class are stored. There are the following data classes:

APPL0 (master data): Data which is seldomly changed. An example of master data is the data contained in an address file, such as the name, address and telephone number.

APPL1 (transaction data): Data that is frequently changed. An example of transaction data is the goods in a warehouse, which change after each purchase order.

APPL2 (organizational data): Customizing data that is defined when the system is installed and seldomly changed. An example is the table with country codes.

Two further data classes, USR and USR1, are provided for the customer. These are for user developments. The tables assigned to these data classes are stored in a tablespace for user developments