ABAP Select data from SAP table J_1ISER_BSEG into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1ISER_BSEG table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to J_1ISER_BSEG. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the J_1ISER_BSEG table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_J_1ISER_BSEG TYPE STANDARD TABLE OF J_1ISER_BSEG,
      WA_J_1ISER_BSEG TYPE J_1ISER_BSEG,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <J_1ISER_BSEG> TYPE J_1ISER_BSEG.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1ISER_BSEG.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1ISER_BSEG
  INTO TABLE IT_J_1ISER_BSEG.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1ISER_BSEG
*  INTO TABLE @DATA(IT_J_1ISER_BSEG2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_J_1ISER_BSEG INDEX 1 INTO DATA(WA_J_1ISER_BSEG2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1ISER_BSEG ASSIGNING <J_1ISER_BSEG>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1ISER_BSEG>-MANDT = 1.
<J_1ISER_BSEG>-BUKRS = 1.
<J_1ISER_BSEG>-BELNR = 1.
<J_1ISER_BSEG>-GJAHR = 1.
<J_1ISER_BSEG>-BUZEI = 1.

ENDLOOP.

LOOP AT IT_J_1ISER_BSEG INTO WA_J_1ISER_BSEG.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1ISER_BSEG-CONDNAME, sy-vline,
  WA_J_1ISER_BSEG-BLART, sy-vline,
  WA_J_1ISER_BSEG-KSCHL, sy-vline,
  WA_J_1ISER_BSEG-BUDAT, sy-vline,
  WA_J_1ISER_BSEG-STBLG, sy-vline,
  WA_J_1ISER_BSEG-STJAH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1ISER_BSEG you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_J_1ISER_BSEG TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_J_1ISER_BSEG INTO WA_J_1ISER_BSEG.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1ISER_BSEG-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1ISER_BSEG-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_1ISER_BSEG-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1ISER_BSEG-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STBLG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1ISER_BSEG-STBLG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1ISER_BSEG-STBLG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field STJAH
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_1ISER_BSEG-STJAH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1ISER_BSEG-STJAH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1ISER_BSEG-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1ISER_BSEG-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1ISER_BSEG-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1ISER_BSEG-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1ISER_BSEG-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1ISER_BSEG-HKONT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_J_1ISER_BSEG_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
CONDNAME TYPE STRING,
BLART TYPE STRING,
KSCHL TYPE STRING,
BUDAT TYPE STRING,
STBLG TYPE STRING,
STJAH TYPE STRING,
WERKS TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
SHKZG TYPE STRING,
HKONT TYPE STRING,
MWSKZ TYPE STRING,
TXGRP TYPE STRING,
KBETR TYPE STRING,
WAERS TYPE STRING,
HWBAS TYPE STRING,
HWSTE TYPE STRING,
FWBAS TYPE STRING,
FWSTE TYPE STRING,
J_1ISERCAT TYPE STRING,
DOCTYPE TYPE STRING,
USNAM TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
BUPLA TYPE STRING,
SECCO TYPE STRING,
REVCHNG TYPE STRING,
REVBY TYPE STRING,
REVAT TYPE STRING,
RECRBY TYPE STRING,
RECRAT TYPE STRING,
SERCRD TYPE STRING,
SERECSCRD TYPE STRING,
SERAT1CRD TYPE STRING,
SERDR TYPE STRING,
SERECSDR TYPE STRING,
SERAT1DR TYPE STRING,
AMTPAID TYPE STRING,
STATUS TYPE STRING,
SERAT2CRD TYPE STRING,
SERAT2DR TYPE STRING,
SERAT3CRD TYPE STRING,
SERAT3DR TYPE STRING,
SERKKCCR TYPE STRING,
SERKKCDR TYPE STRING,
SERCESS1CR TYPE STRING,
SERCESS1DR TYPE STRING,
SERSBCCR TYPE STRING,
SERSBCDR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1ISER_BSEG_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_J_1ISER_BSEG_STR-MANDT sy-vline 
WA_J_1ISER_BSEG_STR-BUKRS sy-vline 
WA_J_1ISER_BSEG_STR-BELNR sy-vline 
WA_J_1ISER_BSEG_STR-GJAHR sy-vline 
WA_J_1ISER_BSEG_STR-BUZEI sy-vline 
WA_J_1ISER_BSEG_STR-CONDNAME sy-vline 
WA_J_1ISER_BSEG_STR-BLART sy-vline 
WA_J_1ISER_BSEG_STR-KSCHL sy-vline 
WA_J_1ISER_BSEG_STR-BUDAT sy-vline 
WA_J_1ISER_BSEG_STR-STBLG sy-vline 
WA_J_1ISER_BSEG_STR-STJAH sy-vline 
WA_J_1ISER_BSEG_STR-WERKS sy-vline 
WA_J_1ISER_BSEG_STR-KUNNR sy-vline 
WA_J_1ISER_BSEG_STR-LIFNR sy-vline 
WA_J_1ISER_BSEG_STR-SHKZG sy-vline 
WA_J_1ISER_BSEG_STR-HKONT sy-vline 
WA_J_1ISER_BSEG_STR-MWSKZ sy-vline 
WA_J_1ISER_BSEG_STR-TXGRP sy-vline 
WA_J_1ISER_BSEG_STR-KBETR sy-vline 
WA_J_1ISER_BSEG_STR-WAERS sy-vline 
WA_J_1ISER_BSEG_STR-HWBAS sy-vline 
WA_J_1ISER_BSEG_STR-HWSTE sy-vline 
WA_J_1ISER_BSEG_STR-FWBAS sy-vline 
WA_J_1ISER_BSEG_STR-FWSTE sy-vline 
WA_J_1ISER_BSEG_STR-J_1ISERCAT sy-vline 
WA_J_1ISER_BSEG_STR-DOCTYPE sy-vline 
WA_J_1ISER_BSEG_STR-USNAM sy-vline 
WA_J_1ISER_BSEG_STR-CPUDT sy-vline 
WA_J_1ISER_BSEG_STR-CPUTM sy-vline 
WA_J_1ISER_BSEG_STR-BUPLA sy-vline 
WA_J_1ISER_BSEG_STR-SECCO sy-vline 
WA_J_1ISER_BSEG_STR-REVCHNG sy-vline 
WA_J_1ISER_BSEG_STR-REVBY sy-vline 
WA_J_1ISER_BSEG_STR-REVAT sy-vline 
WA_J_1ISER_BSEG_STR-RECRBY sy-vline 
WA_J_1ISER_BSEG_STR-RECRAT sy-vline 
WA_J_1ISER_BSEG_STR-SERCRD sy-vline 
WA_J_1ISER_BSEG_STR-SERECSCRD sy-vline 
WA_J_1ISER_BSEG_STR-SERAT1CRD sy-vline 
WA_J_1ISER_BSEG_STR-SERDR sy-vline 
WA_J_1ISER_BSEG_STR-SERECSDR sy-vline 
WA_J_1ISER_BSEG_STR-SERAT1DR sy-vline 
WA_J_1ISER_BSEG_STR-AMTPAID sy-vline 
WA_J_1ISER_BSEG_STR-STATUS sy-vline 
WA_J_1ISER_BSEG_STR-SERAT2CRD sy-vline 
WA_J_1ISER_BSEG_STR-SERAT2DR sy-vline 
WA_J_1ISER_BSEG_STR-SERAT3CRD sy-vline 
WA_J_1ISER_BSEG_STR-SERAT3DR sy-vline 
WA_J_1ISER_BSEG_STR-SERKKCCR sy-vline 
WA_J_1ISER_BSEG_STR-SERKKCDR sy-vline 
WA_J_1ISER_BSEG_STR-SERCESS1CR sy-vline 
WA_J_1ISER_BSEG_STR-SERCESS1DR sy-vline 
WA_J_1ISER_BSEG_STR-SERSBCCR sy-vline 
WA_J_1ISER_BSEG_STR-SERSBCDR sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.