ABAP Select data from SAP table /BIC/CITA2LIS_03_S091 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /BIC/CITA2LIS_03_S091 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 /BIC/CITA2LIS_03_S091. 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 /BIC/CITA2LIS_03_S091 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_/BIC/CITA2LIS_03_S091 TYPE STANDARD TABLE OF /BIC/CITA2LIS_03_S091,
      WA_/BIC/CITA2LIS_03_S091 TYPE /BIC/CITA2LIS_03_S091,
      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: </BIC/CITA2LIS_03_S091> TYPE /BIC/CITA2LIS_03_S091.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/BIC/CITA2LIS_03_S091.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /BIC/CITA2LIS_03_S091
  INTO TABLE IT_/BIC/CITA2LIS_03_S091.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BIC/CITA2LIS_03_S091
*  INTO TABLE @DATA(IT_/BIC/CITA2LIS_03_S0912).
*--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_/BIC/CITA2LIS_03_S091 INDEX 1 INTO DATA(WA_/BIC/CITA2LIS_03_S0912).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/BIC/CITA2LIS_03_S091 ASSIGNING </BIC/CITA2LIS_03_S091>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BIC/CITA2LIS_03_S091>-STORNO = 1.
</BIC/CITA2LIS_03_S091>-WRTTP = 1.
</BIC/CITA2LIS_03_S091>-VRSIO = 1.
</BIC/CITA2LIS_03_S091>-SPMON = 1.
</BIC/CITA2LIS_03_S091>-SPTAG = 1.

ENDLOOP.

LOOP AT IT_/BIC/CITA2LIS_03_S091 INTO WA_/BIC/CITA2LIS_03_S091.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BIC/CITA2LIS_03_S091-SPWOC, sy-vline,
  WA_/BIC/CITA2LIS_03_S091-SPBUP, sy-vline,
  WA_/BIC/CITA2LIS_03_S091-LGNUM, sy-vline,
  WA_/BIC/CITA2LIS_03_S091-ALTYP, sy-vline,
  WA_/BIC/CITA2LIS_03_S091-ALBER, sy-vline,
  WA_/BIC/CITA2LIS_03_S091-ELTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BIC/CITA2LIS_03_S091 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_/BIC/CITA2LIS_03_S091 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_/BIC/CITA2LIS_03_S091 INTO WA_/BIC/CITA2LIS_03_S091.


*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.
ENDFORM. 

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

TYPES: BEGIN OF T_/BIC/CITA2LIS_03_S091_STR, 
STORNO TYPE STRING,
WRTTP TYPE STRING,
VRSIO TYPE STRING,
SPMON TYPE STRING,
SPTAG TYPE STRING,
SPWOC TYPE STRING,
SPBUP TYPE STRING,
LGNUM TYPE STRING,
ALTYP TYPE STRING,
ALBER TYPE STRING,
ELTYP TYPE STRING,
ELBER TYPE STRING,
BWLVS TYPE STRING,
MATNR TYPE STRING,
LETYP TYPE STRING,
PERIV TYPE STRING,
GEWEI TYPE STRING,
BASME TYPE STRING,
LZEIT TYPE STRING,
AEGEW TYPE STRING,
AEMNG TYPE STRING,
AEPSC TYPE STRING,
EDMNG TYPE STRING,
EDPSC TYPE STRING,
VDMNG TYPE STRING,
VDPSC TYPE STRING,
RGLAC TYPE STRING,
NKPSC TYPE STRING,
RSBZC TYPE STRING,
TBBZC TYPE STRING,
LFBZC TYPE STRING,
RFBZC TYPE STRING,
AE_AQ TYPE STRING,
AEAQC TYPE STRING,
BE_AE TYPE STRING,
BEAEC TYPE STRING,
BP_AE TYPE STRING,
BPAEC TYPE STRING,
LK_AE TYPE STRING,
LKAEC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BIC/CITA2LIS_03_S091_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_/BIC/CITA2LIS_03_S091_STR-STORNO sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-WRTTP sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-VRSIO sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-SPMON sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-SPTAG sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-SPWOC sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-SPBUP sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-LGNUM sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-ALTYP sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-ALBER sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-ELTYP sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-ELBER sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-BWLVS sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-MATNR sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-LETYP sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-PERIV sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-GEWEI sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-BASME sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-LZEIT sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-AEGEW sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-AEMNG sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-AEPSC sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-EDMNG sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-EDPSC sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-VDMNG sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-VDPSC sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-RGLAC sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-NKPSC sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-RSBZC sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-TBBZC sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-LFBZC sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-RFBZC sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-AE_AQ sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-AEAQC sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-BE_AE sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-BEAEC sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-BP_AE sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-BPAEC sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-LK_AE sy-vline 
WA_/BIC/CITA2LIS_03_S091_STR-LKAEC sy-vline      INTO ld_text SEPARATED BY SPACE.

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