ABAP Select data from SAP table TERSSTOCK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TERSSTOCK
*  INTO TABLE @DATA(IT_TERSSTOCK2).
*--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_TERSSTOCK INDEX 1 INTO DATA(WA_TERSSTOCK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TERSSTOCK>-MARK4 = 1.
<TERSSTOCK>-AMOUNT = 1.
<TERSSTOCK>-CURRENCY = 1.
<TERSSTOCK>-FLOWS1 = 1.
<TERSSTOCK>-FLOWS1_TEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TERSSTOCK-FLOWS2, sy-vline,
  WA_TERSSTOCK-FLOWS2_TEXT, sy-vline,
  WA_TERSSTOCK-FLOWS3, sy-vline,
  WA_TERSSTOCK-FLOWS3_TEXT, sy-vline,
  WA_TERSSTOCK-BUKRS, sy-vline,
  WA_TERSSTOCK-RLDEPO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TERSSTOCK 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_TERSSTOCK 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_TERSSTOCK INTO WA_TERSSTOCK.


*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 RANL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TERSSTOCK-RANL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TERSSTOCK-RANL.
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_TERSSTOCK_STR, 
MARK4 TYPE STRING,
AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
FLOWS1 TYPE STRING,
FLOWS1_TEXT TYPE STRING,
FLOWS2 TYPE STRING,
FLOWS2_TEXT TYPE STRING,
FLOWS3 TYPE STRING,
FLOWS3_TEXT TYPE STRING,
BUKRS TYPE STRING,
RLDEPO TYPE STRING,
NORDER TYPE STRING,
RANL TYPE STRING,
BNOMINAL TYPE STRING,
ASTUECK TYPE STRING,
SBWHR TYPE STRING,
SHWHR TYPE STRING,
BKAUFWR TYPE STRING,
BKAUFHW TYPE STRING,
BBUCHWR TYPE STRING,
BBUCHHW TYPE STRING,
BKOSTWR TYPE STRING,
BKOSTHW TYPE STRING,
BKSTBWR TYPE STRING,
BKSTBHW TYPE STRING,
BWPBWWR TYPE STRING,
BWPBWHW TYPE STRING,
BFWBWHW TYPE STRING,
BKOBWWR TYPE STRING,
BKOBWHW TYPE STRING,
BKOFBHW TYPE STRING,
DBEST6B TYPE STRING,
BAMT1WR TYPE STRING,
BAMT1HW TYPE STRING,
BAMT2WR TYPE STRING,
BAMT2HW TYPE STRING,
BAMT3WR TYPE STRING,
BAMT3HW TYPE STRING,
BAMT4WR TYPE STRING,
BAMT4HW TYPE STRING,
BNOMINAL_ER TYPE STRING,
ASTUECK_ER TYPE STRING,
FLG_NOAUTH TYPE STRING,
POSITION_ACCOUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TERSSTOCK_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_TERSSTOCK_STR-MARK4 sy-vline 
WA_TERSSTOCK_STR-AMOUNT sy-vline 
WA_TERSSTOCK_STR-CURRENCY sy-vline 
WA_TERSSTOCK_STR-FLOWS1 sy-vline 
WA_TERSSTOCK_STR-FLOWS1_TEXT sy-vline 
WA_TERSSTOCK_STR-FLOWS2 sy-vline 
WA_TERSSTOCK_STR-FLOWS2_TEXT sy-vline 
WA_TERSSTOCK_STR-FLOWS3 sy-vline 
WA_TERSSTOCK_STR-FLOWS3_TEXT sy-vline 
WA_TERSSTOCK_STR-BUKRS sy-vline 
WA_TERSSTOCK_STR-RLDEPO sy-vline 
WA_TERSSTOCK_STR-NORDER sy-vline 
WA_TERSSTOCK_STR-RANL sy-vline 
WA_TERSSTOCK_STR-BNOMINAL sy-vline 
WA_TERSSTOCK_STR-ASTUECK sy-vline 
WA_TERSSTOCK_STR-SBWHR sy-vline 
WA_TERSSTOCK_STR-SHWHR sy-vline 
WA_TERSSTOCK_STR-BKAUFWR sy-vline 
WA_TERSSTOCK_STR-BKAUFHW sy-vline 
WA_TERSSTOCK_STR-BBUCHWR sy-vline 
WA_TERSSTOCK_STR-BBUCHHW sy-vline 
WA_TERSSTOCK_STR-BKOSTWR sy-vline 
WA_TERSSTOCK_STR-BKOSTHW sy-vline 
WA_TERSSTOCK_STR-BKSTBWR sy-vline 
WA_TERSSTOCK_STR-BKSTBHW sy-vline 
WA_TERSSTOCK_STR-BWPBWWR sy-vline 
WA_TERSSTOCK_STR-BWPBWHW sy-vline 
WA_TERSSTOCK_STR-BFWBWHW sy-vline 
WA_TERSSTOCK_STR-BKOBWWR sy-vline 
WA_TERSSTOCK_STR-BKOBWHW sy-vline 
WA_TERSSTOCK_STR-BKOFBHW sy-vline 
WA_TERSSTOCK_STR-DBEST6B sy-vline 
WA_TERSSTOCK_STR-BAMT1WR sy-vline 
WA_TERSSTOCK_STR-BAMT1HW sy-vline 
WA_TERSSTOCK_STR-BAMT2WR sy-vline 
WA_TERSSTOCK_STR-BAMT2HW sy-vline 
WA_TERSSTOCK_STR-BAMT3WR sy-vline 
WA_TERSSTOCK_STR-BAMT3HW sy-vline 
WA_TERSSTOCK_STR-BAMT4WR sy-vline 
WA_TERSSTOCK_STR-BAMT4HW sy-vline 
WA_TERSSTOCK_STR-BNOMINAL_ER sy-vline 
WA_TERSSTOCK_STR-ASTUECK_ER sy-vline 
WA_TERSSTOCK_STR-FLG_NOAUTH sy-vline 
WA_TERSSTOCK_STR-POSITION_ACCOUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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