ABAP Select data from SAP table U_15970 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_15970 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 U_15970. 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 U_15970 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_U_15970 TYPE STANDARD TABLE OF U_15970,
      WA_U_15970 TYPE U_15970,
      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: <U_15970> TYPE U_15970.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_15970.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_15970
  INTO TABLE IT_U_15970.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_15970
*  INTO TABLE @DATA(IT_U_159702).
*--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_U_15970 INDEX 1 INTO DATA(WA_U_159702).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_15970 ASSIGNING <U_15970>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_15970>-MANDT = 1.
<U_15970>-ABELN = 1.
<U_15970>-ABELP = 1.
<U_15970>-APSTP = 1.
<U_15970>-ASTAP = 1.

ENDLOOP.

LOOP AT IT_U_15970 INTO WA_U_15970.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_15970-PSTAP, sy-vline,
  WA_U_15970-SPERR, sy-vline,
  WA_U_15970-ERDAT, sy-vline,
  WA_U_15970-AEDAT, sy-vline,
  WA_U_15970-ERNAM, sy-vline,
  WA_U_15970-AENAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_15970 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_U_15970 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_U_15970 INTO WA_U_15970.


*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 ABELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15970-ABELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15970-ABELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RFKTN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15970-RFKTN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15970-RFKTN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15970-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15970-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AKTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15970-AKTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15970-AKTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_U_15970-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15970-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15970-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15970-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15970-SBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15970-SBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field AUFME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_15970-AUFME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15970-AUFME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_15970-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15970-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VZENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15970-VZENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15970-VZENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VZLFR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15970-VZLFR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15970-VZLFR.
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_U_15970_STR, 
MANDT TYPE STRING,
ABELN TYPE STRING,
ABELP TYPE STRING,
APSTP TYPE STRING,
ASTAP TYPE STRING,
PSTAP TYPE STRING,
SPERR TYPE STRING,
ERDAT TYPE STRING,
AEDAT TYPE STRING,
ERNAM TYPE STRING,
AENAM TYPE STRING,
RFKTN TYPE STRING,
RFKTP TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
AKTNR TYPE STRING,
AKTPO TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
BWART TYPE STRING,
VZWRK TYPE STRING,
LIFNR TYPE STRING,
SBELN TYPE STRING,
FIKLI TYPE STRING,
FILKL TYPE STRING,
PMNGE TYPE STRING,
IMNGE TYPE STRING,
MMNGE TYPE STRING,
AUFME TYPE STRING,
MEINS TYPE STRING,
UZAEH TYPE STRING,
UNENN TYPE STRING,
LISTG TYPE STRING,
MANUE TYPE STRING,
RUNDG TYPE STRING,
RESTV TYPE STRING,
ASTRA TYPE STRING,
LIEFW TYPE STRING,
VKSDT TYPE STRING,
VKSTP TYPE STRING,
AAVIT TYPE STRING,
MATKL TYPE STRING,
VZENT TYPE STRING,
VZLFR TYPE STRING,
BSART TYPE STRING,
UMART TYPE STRING,
LFART TYPE STRING,
ABFDT TYPE STRING,
ABFTP TYPE STRING,
SVFIX TYPE STRING,
SIMAM TYPE STRING,
LGORT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_15970_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_U_15970_STR-MANDT sy-vline 
WA_U_15970_STR-ABELN sy-vline 
WA_U_15970_STR-ABELP sy-vline 
WA_U_15970_STR-APSTP sy-vline 
WA_U_15970_STR-ASTAP sy-vline 
WA_U_15970_STR-PSTAP sy-vline 
WA_U_15970_STR-SPERR sy-vline 
WA_U_15970_STR-ERDAT sy-vline 
WA_U_15970_STR-AEDAT sy-vline 
WA_U_15970_STR-ERNAM sy-vline 
WA_U_15970_STR-AENAM sy-vline 
WA_U_15970_STR-RFKTN sy-vline 
WA_U_15970_STR-RFKTP sy-vline 
WA_U_15970_STR-RSNUM sy-vline 
WA_U_15970_STR-RSPOS sy-vline 
WA_U_15970_STR-EBELN sy-vline 
WA_U_15970_STR-EBELP sy-vline 
WA_U_15970_STR-AKTNR sy-vline 
WA_U_15970_STR-AKTPO sy-vline 
WA_U_15970_STR-MATNR sy-vline 
WA_U_15970_STR-MAKTX sy-vline 
WA_U_15970_STR-BWART sy-vline 
WA_U_15970_STR-VZWRK sy-vline 
WA_U_15970_STR-LIFNR sy-vline 
WA_U_15970_STR-SBELN sy-vline 
WA_U_15970_STR-FIKLI sy-vline 
WA_U_15970_STR-FILKL sy-vline 
WA_U_15970_STR-PMNGE sy-vline 
WA_U_15970_STR-IMNGE sy-vline 
WA_U_15970_STR-MMNGE sy-vline 
WA_U_15970_STR-AUFME sy-vline 
WA_U_15970_STR-MEINS sy-vline 
WA_U_15970_STR-UZAEH sy-vline 
WA_U_15970_STR-UNENN sy-vline 
WA_U_15970_STR-LISTG sy-vline 
WA_U_15970_STR-MANUE sy-vline 
WA_U_15970_STR-RUNDG sy-vline 
WA_U_15970_STR-RESTV sy-vline 
WA_U_15970_STR-ASTRA sy-vline 
WA_U_15970_STR-LIEFW sy-vline 
WA_U_15970_STR-VKSDT sy-vline 
WA_U_15970_STR-VKSTP sy-vline 
WA_U_15970_STR-AAVIT sy-vline 
WA_U_15970_STR-MATKL sy-vline 
WA_U_15970_STR-VZENT sy-vline 
WA_U_15970_STR-VZLFR sy-vline 
WA_U_15970_STR-BSART sy-vline 
WA_U_15970_STR-UMART sy-vline 
WA_U_15970_STR-LFART sy-vline 
WA_U_15970_STR-ABFDT sy-vline 
WA_U_15970_STR-ABFTP sy-vline 
WA_U_15970_STR-SVFIX sy-vline 
WA_U_15970_STR-SIMAM sy-vline 
WA_U_15970_STR-LGORT sy-vline      INTO ld_text SEPARATED BY SPACE.

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