ABAP Select data from SAP table REBD_CORP_USE_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_CORP_USE_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_CORP_USE_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_CORP_USE_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_CORP_USE_L TYPE STANDARD TABLE OF REBD_CORP_USE_L,
      WA_REBD_CORP_USE_L TYPE REBD_CORP_USE_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_CORP_USE_L> TYPE REBD_CORP_USE_L.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REBD_CORP_USE_L
*  INTO TABLE @DATA(IT_REBD_CORP_USE_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_CORP_USE_L INDEX 1 INTO DATA(WA_REBD_CORP_USE_L2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REBD_CORP_USE_L>-GUID = 1.
<REBD_CORP_USE_L>-AO1 = 1.
<REBD_CORP_USE_L>-AO2 = 1.
<REBD_CORP_USE_L>-AO3 = 1.
<REBD_CORP_USE_L>-AO4 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REBD_CORP_USE_L-AO5, sy-vline,
  WA_REBD_CORP_USE_L-AO6, sy-vline,
  WA_REBD_CORP_USE_L-AO7, sy-vline,
  WA_REBD_CORP_USE_L-AO8, sy-vline,
  WA_REBD_CORP_USE_L-AO9, sy-vline,
  WA_REBD_CORP_USE_L-AO10, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REBD_CORP_USE_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_CORP_USE_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_CORP_USE_L INTO WA_REBD_CORP_USE_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 CUNIT, internal->external for field MEAS1UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_REBD_CORP_USE_L-MEAS1UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBD_CORP_USE_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_CORP_USE_L-MEAS2UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBD_CORP_USE_L-MEAS2UNIT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field CNPLAN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REBD_CORP_USE_L-CNPLAN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBD_CORP_USE_L-CNPLAN.
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_CORP_USE_L_STR, 
GUID TYPE STRING,
AO1 TYPE STRING,
AO2 TYPE STRING,
AO3 TYPE STRING,
AO4 TYPE STRING,
AO5 TYPE STRING,
AO6 TYPE STRING,
AO7 TYPE STRING,
AO8 TYPE STRING,
AO9 TYPE STRING,
AO10 TYPE STRING,
AO11 TYPE STRING,
AO12 TYPE STRING,
AOTYPE TYPE STRING,
TEXT TYPE STRING,
MEAS1CAPDARK TYPE STRING,
MEAS1CAP TYPE STRING,
MEAS1IS TYPE STRING,
MEAS1PLAN TYPE STRING,
MEAS1UNIT TYPE STRING,
OCCCAPACITY TYPE STRING,
MEAS2CAPDARK TYPE STRING,
MEAS2CAP TYPE STRING,
MEAS2IS TYPE STRING,
MEAS2PLAN TYPE STRING,
MEAS2UNIT TYPE STRING,
USAGEOBJTYPE TYPE STRING,
RENTOBJTYPE TYPE STRING,
POOLSPACE TYPE STRING,
RENTSPACE TYPE STRING,
CNIS TYPE STRING,
RSPLAN TYPE STRING,
CNPLAN TYPE STRING,
IDENTAO TYPE STRING,
IDENTRO TYPE STRING,
MANUAL TYPE STRING,
ISPLANSTORED TYPE STRING,
INTRENO TYPE STRING,
INTRENORO TYPE STRING,
INTRENOPS TYPE STRING,
INTRENOSUM TYPE STRING,
COLORTAB TYPE STRING,
CELLTAB TYPE STRING,
LINECOLOR TYPE STRING,
RSUSAGETYPE TYPE STRING,
NEWENTRY TYPE STRING,
ISOBJRELCOMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REBD_CORP_USE_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_CORP_USE_L_STR-GUID sy-vline 
WA_REBD_CORP_USE_L_STR-AO1 sy-vline 
WA_REBD_CORP_USE_L_STR-AO2 sy-vline 
WA_REBD_CORP_USE_L_STR-AO3 sy-vline 
WA_REBD_CORP_USE_L_STR-AO4 sy-vline 
WA_REBD_CORP_USE_L_STR-AO5 sy-vline 
WA_REBD_CORP_USE_L_STR-AO6 sy-vline 
WA_REBD_CORP_USE_L_STR-AO7 sy-vline 
WA_REBD_CORP_USE_L_STR-AO8 sy-vline 
WA_REBD_CORP_USE_L_STR-AO9 sy-vline 
WA_REBD_CORP_USE_L_STR-AO10 sy-vline 
WA_REBD_CORP_USE_L_STR-AO11 sy-vline 
WA_REBD_CORP_USE_L_STR-AO12 sy-vline 
WA_REBD_CORP_USE_L_STR-AOTYPE sy-vline 
WA_REBD_CORP_USE_L_STR-TEXT sy-vline 
WA_REBD_CORP_USE_L_STR-MEAS1CAPDARK sy-vline 
WA_REBD_CORP_USE_L_STR-MEAS1CAP sy-vline 
WA_REBD_CORP_USE_L_STR-MEAS1IS sy-vline 
WA_REBD_CORP_USE_L_STR-MEAS1PLAN sy-vline 
WA_REBD_CORP_USE_L_STR-MEAS1UNIT sy-vline 
WA_REBD_CORP_USE_L_STR-OCCCAPACITY sy-vline 
WA_REBD_CORP_USE_L_STR-MEAS2CAPDARK sy-vline 
WA_REBD_CORP_USE_L_STR-MEAS2CAP sy-vline 
WA_REBD_CORP_USE_L_STR-MEAS2IS sy-vline 
WA_REBD_CORP_USE_L_STR-MEAS2PLAN sy-vline 
WA_REBD_CORP_USE_L_STR-MEAS2UNIT sy-vline 
WA_REBD_CORP_USE_L_STR-USAGEOBJTYPE sy-vline 
WA_REBD_CORP_USE_L_STR-RENTOBJTYPE sy-vline 
WA_REBD_CORP_USE_L_STR-POOLSPACE sy-vline 
WA_REBD_CORP_USE_L_STR-RENTSPACE sy-vline 
WA_REBD_CORP_USE_L_STR-CNIS sy-vline 
WA_REBD_CORP_USE_L_STR-RSPLAN sy-vline 
WA_REBD_CORP_USE_L_STR-CNPLAN sy-vline 
WA_REBD_CORP_USE_L_STR-IDENTAO sy-vline 
WA_REBD_CORP_USE_L_STR-IDENTRO sy-vline 
WA_REBD_CORP_USE_L_STR-MANUAL sy-vline 
WA_REBD_CORP_USE_L_STR-ISPLANSTORED sy-vline 
WA_REBD_CORP_USE_L_STR-INTRENO sy-vline 
WA_REBD_CORP_USE_L_STR-INTRENORO sy-vline 
WA_REBD_CORP_USE_L_STR-INTRENOPS sy-vline 
WA_REBD_CORP_USE_L_STR-INTRENOSUM sy-vline 
WA_REBD_CORP_USE_L_STR-COLORTAB sy-vline 
WA_REBD_CORP_USE_L_STR-CELLTAB sy-vline 
WA_REBD_CORP_USE_L_STR-LINECOLOR sy-vline 
WA_REBD_CORP_USE_L_STR-RSUSAGETYPE sy-vline 
WA_REBD_CORP_USE_L_STR-NEWENTRY sy-vline 
WA_REBD_CORP_USE_L_STR-ISOBJRELCOMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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