ABAP Select data from SAP table REBD_PS_OVERVIEW_L into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REBD_PS_OVERVIEW_L
*  INTO TABLE @DATA(IT_REBD_PS_OVERVIEW_L2).
*--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_REBD_PS_OVERVIEW_L INDEX 1 INTO DATA(WA_REBD_PS_OVERVIEW_L2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REBD_PS_OVERVIEW_L>-PSBE = 1.
<REBD_PS_OVERVIEW_L>-PSBU = 1.
<REBD_PS_OVERVIEW_L>-PSPR = 1.
<REBD_PS_OVERVIEW_L>-PSRO = 1.
<REBD_PS_OVERVIEW_L>-PLANNED = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REBD_PS_OVERVIEW_L-POOLSPACETXT, sy-vline,
  WA_REBD_PS_OVERVIEW_L-ASSAOTYPE, sy-vline,
  WA_REBD_PS_OVERVIEW_L-ASSXMAOTYPE, sy-vline,
  WA_REBD_PS_OVERVIEW_L-USAGETYPE, sy-vline,
  WA_REBD_PS_OVERVIEW_L-ROTYPE, sy-vline,
  WA_REBD_PS_OVERVIEW_L-XMUSAGETYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REBD_PS_OVERVIEW_L 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_REBD_PS_OVERVIEW_L 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_REBD_PS_OVERVIEW_L INTO WA_REBD_PS_OVERVIEW_L.


*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 SWENR, internal->external for field PSBE
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_REBD_PS_OVERVIEW_L-PSBE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBD_PS_OVERVIEW_L-PSBE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGENR, internal->external for field PSBU
CALL FUNCTION 'CONVERSION_EXIT_SGENR_OUTPUT'
  EXPORTING
    input =                      WA_REBD_PS_OVERVIEW_L-PSBU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBD_PS_OVERVIEW_L-PSBU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGRNR, internal->external for field PSPR
CALL FUNCTION 'CONVERSION_EXIT_SGRNR_OUTPUT'
  EXPORTING
    input =                      WA_REBD_PS_OVERVIEW_L-PSPR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBD_PS_OVERVIEW_L-PSPR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SMENR, internal->external for field PSRO
CALL FUNCTION 'CONVERSION_EXIT_SMENR_OUTPUT'
  EXPORTING
    input =                      WA_REBD_PS_OVERVIEW_L-PSRO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBD_PS_OVERVIEW_L-PSRO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEAS1UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_REBD_PS_OVERVIEW_L-MEAS1UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBD_PS_OVERVIEW_L-MEAS1UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEAS2UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_REBD_PS_OVERVIEW_L-MEAS2UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBD_PS_OVERVIEW_L-MEAS2UNIT.
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_REBD_PS_OVERVIEW_L_STR, 
PSBE TYPE STRING,
PSBU TYPE STRING,
PSPR TYPE STRING,
PSRO TYPE STRING,
PLANNED TYPE STRING,
POOLSPACETXT TYPE STRING,
ASSAOTYPE TYPE STRING,
ASSXMAOTYPE TYPE STRING,
USAGETYPE TYPE STRING,
ROTYPE TYPE STRING,
XMUSAGETYPE TYPE STRING,
MEAS1PLAN TYPE STRING,
MEAS1IS TYPE STRING,
MEAS1UNIT TYPE STRING,
MEAS2PLAN TYPE STRING,
MEAS2IS TYPE STRING,
MEAS2UNIT TYPE STRING,
CELLTAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REBD_PS_OVERVIEW_L_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_REBD_PS_OVERVIEW_L_STR-PSBE sy-vline 
WA_REBD_PS_OVERVIEW_L_STR-PSBU sy-vline 
WA_REBD_PS_OVERVIEW_L_STR-PSPR sy-vline 
WA_REBD_PS_OVERVIEW_L_STR-PSRO sy-vline 
WA_REBD_PS_OVERVIEW_L_STR-PLANNED sy-vline 
WA_REBD_PS_OVERVIEW_L_STR-POOLSPACETXT sy-vline 
WA_REBD_PS_OVERVIEW_L_STR-ASSAOTYPE sy-vline 
WA_REBD_PS_OVERVIEW_L_STR-ASSXMAOTYPE sy-vline 
WA_REBD_PS_OVERVIEW_L_STR-USAGETYPE sy-vline 
WA_REBD_PS_OVERVIEW_L_STR-ROTYPE sy-vline 
WA_REBD_PS_OVERVIEW_L_STR-XMUSAGETYPE sy-vline 
WA_REBD_PS_OVERVIEW_L_STR-MEAS1PLAN sy-vline 
WA_REBD_PS_OVERVIEW_L_STR-MEAS1IS sy-vline 
WA_REBD_PS_OVERVIEW_L_STR-MEAS1UNIT sy-vline 
WA_REBD_PS_OVERVIEW_L_STR-MEAS2PLAN sy-vline 
WA_REBD_PS_OVERVIEW_L_STR-MEAS2IS sy-vline 
WA_REBD_PS_OVERVIEW_L_STR-MEAS2UNIT sy-vline 
WA_REBD_PS_OVERVIEW_L_STR-CELLTAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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