ABAP Select data from SAP table BAPI_OIGSI into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPI_OIGSI 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 BAPI_OIGSI. 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 BAPI_OIGSI 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_BAPI_OIGSI TYPE STANDARD TABLE OF BAPI_OIGSI,
      WA_BAPI_OIGSI TYPE BAPI_OIGSI,
      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: <BAPI_OIGSI> TYPE BAPI_OIGSI.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_OIGSI
*  INTO TABLE @DATA(IT_BAPI_OIGSI2).
*--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_BAPI_OIGSI INDEX 1 INTO DATA(WA_BAPI_OIGSI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_OIGSI>-SHNUMBER = 1.
<BAPI_OIGSI>-SHITEM = 1.
<BAPI_OIGSI>-USE_EXT_NR = 1.
<BAPI_OIGSI>-INTERN_DOC = 1.
<BAPI_OIGSI>-DOC_TYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_OIGSI-DOC_NUMBER, sy-vline,
  WA_BAPI_OIGSI-VGTYP, sy-vline,
  WA_BAPI_OIGSI-OIG_SSTSFP, sy-vline,
  WA_BAPI_OIGSI-DOC_SEQ, sy-vline,
  WA_BAPI_OIGSI-LOAD_INDI, sy-vline,
  WA_BAPI_OIGSI-DISCH_INDI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_OIGSI 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_BAPI_OIGSI 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_BAPI_OIGSI INTO WA_BAPI_OIGSI.


*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 SHNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_OIGSI-SHNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_OIGSI-SHNUMBER.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field OIC_LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_OIGSI-OIC_LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_OIGSI-OIC_LIFNR.
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_BAPI_OIGSI_STR, 
SHNUMBER TYPE STRING,
SHITEM TYPE STRING,
USE_EXT_NR TYPE STRING,
INTERN_DOC TYPE STRING,
DOC_TYP TYPE STRING,
DOC_NUMBER TYPE STRING,
VGTYP TYPE STRING,
OIG_SSTSFP TYPE STRING,
DOC_SEQ TYPE STRING,
LOAD_INDI TYPE STRING,
DISCH_INDI TYPE STRING,
LONGTEXT TYPE STRING,
OIG_SSTSF TYPE STRING,
REAS_CODE TYPE STRING,
DOC_ITEMS TYPE STRING,
DLDATE TYPE STRING,
DLTIME TYPE STRING,
OIGROUPNAM TYPE STRING,
KUNNR TYPE STRING,
AUGRU TYPE STRING,
AUART TYPE STRING,
TREAT_DEL TYPE STRING,
SOEGRP TYPE STRING,
SOEG_LEVEL TYPE STRING,
UPDATEFLAG TYPE STRING,
OIPIPEVAL TYPE STRING,
OIC_LIFNR TYPE STRING,
OIC_DCITYC TYPE STRING,
OIC_DCOUNC TYPE STRING,
OIC_DREGIO TYPE STRING,
OIC_DLAND1 TYPE STRING,
OIC_OCITYC TYPE STRING,
OIC_OCOUNC TYPE STRING,
OIC_OREGIO TYPE STRING,
OIC_OLAND1 TYPE STRING,
OIC_PORGIN TYPE STRING,
OIC_PDESTN TYPE STRING,
OIC_PTRIP TYPE STRING,
OIC_PBATCH TYPE STRING,
OIC_MOT TYPE STRING,
OIC_AORGIN TYPE STRING,
OIC_ADESTN TYPE STRING,
OIC_TRUCKN TYPE STRING,
OIA_BASELO TYPE STRING,
DOC_TYP_LONG TYPE STRING,
VGTYP_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_OIGSI_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_BAPI_OIGSI_STR-SHNUMBER sy-vline 
WA_BAPI_OIGSI_STR-SHITEM sy-vline 
WA_BAPI_OIGSI_STR-USE_EXT_NR sy-vline 
WA_BAPI_OIGSI_STR-INTERN_DOC sy-vline 
WA_BAPI_OIGSI_STR-DOC_TYP sy-vline 
WA_BAPI_OIGSI_STR-DOC_NUMBER sy-vline 
WA_BAPI_OIGSI_STR-VGTYP sy-vline 
WA_BAPI_OIGSI_STR-OIG_SSTSFP sy-vline 
WA_BAPI_OIGSI_STR-DOC_SEQ sy-vline 
WA_BAPI_OIGSI_STR-LOAD_INDI sy-vline 
WA_BAPI_OIGSI_STR-DISCH_INDI sy-vline 
WA_BAPI_OIGSI_STR-LONGTEXT sy-vline 
WA_BAPI_OIGSI_STR-OIG_SSTSF sy-vline 
WA_BAPI_OIGSI_STR-REAS_CODE sy-vline 
WA_BAPI_OIGSI_STR-DOC_ITEMS sy-vline 
WA_BAPI_OIGSI_STR-DLDATE sy-vline 
WA_BAPI_OIGSI_STR-DLTIME sy-vline 
WA_BAPI_OIGSI_STR-OIGROUPNAM sy-vline 
WA_BAPI_OIGSI_STR-KUNNR sy-vline 
WA_BAPI_OIGSI_STR-AUGRU sy-vline 
WA_BAPI_OIGSI_STR-AUART sy-vline 
WA_BAPI_OIGSI_STR-TREAT_DEL sy-vline 
WA_BAPI_OIGSI_STR-SOEGRP sy-vline 
WA_BAPI_OIGSI_STR-SOEG_LEVEL sy-vline 
WA_BAPI_OIGSI_STR-UPDATEFLAG sy-vline 
WA_BAPI_OIGSI_STR-OIPIPEVAL sy-vline 
WA_BAPI_OIGSI_STR-OIC_LIFNR sy-vline 
WA_BAPI_OIGSI_STR-OIC_DCITYC sy-vline 
WA_BAPI_OIGSI_STR-OIC_DCOUNC sy-vline 
WA_BAPI_OIGSI_STR-OIC_DREGIO sy-vline 
WA_BAPI_OIGSI_STR-OIC_DLAND1 sy-vline 
WA_BAPI_OIGSI_STR-OIC_OCITYC sy-vline 
WA_BAPI_OIGSI_STR-OIC_OCOUNC sy-vline 
WA_BAPI_OIGSI_STR-OIC_OREGIO sy-vline 
WA_BAPI_OIGSI_STR-OIC_OLAND1 sy-vline 
WA_BAPI_OIGSI_STR-OIC_PORGIN sy-vline 
WA_BAPI_OIGSI_STR-OIC_PDESTN sy-vline 
WA_BAPI_OIGSI_STR-OIC_PTRIP sy-vline 
WA_BAPI_OIGSI_STR-OIC_PBATCH sy-vline 
WA_BAPI_OIGSI_STR-OIC_MOT sy-vline 
WA_BAPI_OIGSI_STR-OIC_AORGIN sy-vline 
WA_BAPI_OIGSI_STR-OIC_ADESTN sy-vline 
WA_BAPI_OIGSI_STR-OIC_TRUCKN sy-vline 
WA_BAPI_OIGSI_STR-OIA_BASELO sy-vline 
WA_BAPI_OIGSI_STR-DOC_TYP_LONG sy-vline 
WA_BAPI_OIGSI_STR-VGTYP_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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