ABAP Select data from SAP table /SAPNEA/ROWA_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPNEA/ROWA_DATA
*  INTO TABLE @DATA(IT_/SAPNEA/ROWA_DATA2).
*--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_/SAPNEA/ROWA_DATA INDEX 1 INTO DATA(WA_/SAPNEA/ROWA_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPNEA/ROWA_DATA>-STATUS = 1.
</SAPNEA/ROWA_DATA>-BLDAT = 1.
</SAPNEA/ROWA_DATA>-BUDAT = 1.
</SAPNEA/ROWA_DATA>-BUKRS = 1.
</SAPNEA/ROWA_DATA>-SOBKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPNEA/ROWA_DATA-LIFNR, sy-vline,
  WA_/SAPNEA/ROWA_DATA-WERKS, sy-vline,
  WA_/SAPNEA/ROWA_DATA-MATNR, sy-vline,
  WA_/SAPNEA/ROWA_DATA-SHKZG, sy-vline,
  WA_/SAPNEA/ROWA_DATA-GSBER, sy-vline,
  WA_/SAPNEA/ROWA_DATA-BWAER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPNEA/ROWA_DATA 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_/SAPNEA/ROWA_DATA 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_/SAPNEA/ROWA_DATA INTO WA_/SAPNEA/ROWA_DATA.


*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 LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPNEA/ROWA_DATA-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPNEA/ROWA_DATA-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/SAPNEA/ROWA_DATA-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPNEA/ROWA_DATA-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BSTME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPNEA/ROWA_DATA-BSTME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPNEA/ROWA_DATA-BSTME.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPNEA/ROWA_DATA-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPNEA/ROWA_DATA-MEINS.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPNEA/ROWA_DATA-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPNEA/ROWA_DATA-VBELN.
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_/SAPNEA/ROWA_DATA_STR, 
STATUS TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
BUKRS TYPE STRING,
SOBKZ TYPE STRING,
LIFNR TYPE STRING,
WERKS TYPE STRING,
MATNR TYPE STRING,
SHKZG TYPE STRING,
GSBER TYPE STRING,
BWAER TYPE STRING,
WRBTR TYPE STRING,
BSTME TYPE STRING,
BSTMG TYPE STRING,
HKONT TYPE STRING,
MWSKZ TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
NAVNW TYPE STRING,
PRCTR TYPE STRING,
BWART TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
WAERS TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
BKLAS TYPE STRING,
CKONT TYPE STRING,
ABWHK TYPE STRING,
PREIS TYPE STRING,
PEINH TYPE STRING,
CCBTR TYPE STRING,
VGART TYPE STRING,
XBLNR TYPE STRING,
EMLIF TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
DOCKZ TYPE STRING,
MVCTG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPNEA/ROWA_DATA_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_/SAPNEA/ROWA_DATA_STR-STATUS sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-BLDAT sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-BUDAT sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-BUKRS sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-SOBKZ sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-LIFNR sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-WERKS sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-MATNR sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-SHKZG sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-GSBER sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-BWAER sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-WRBTR sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-BSTME sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-BSTMG sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-HKONT sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-MWSKZ sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-BELNR sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-GJAHR sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-BUZEI sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-NAVNW sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-PRCTR sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-BWART sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-MENGE sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-MEINS sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-WAERS sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-EBELN sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-EBELP sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-BKLAS sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-CKONT sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-ABWHK sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-PREIS sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-PEINH sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-CCBTR sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-VGART sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-XBLNR sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-EMLIF sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-VBELN sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-POSNR sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-DOCKZ sy-vline 
WA_/SAPNEA/ROWA_DATA_STR-MVCTG sy-vline      INTO ld_text SEPARATED BY SPACE.

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