ABAP Select data from SAP table MDG_BS_S_DRAD_DOC_API into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MDG_BS_S_DRAD_DOC_API
*  INTO TABLE @DATA(IT_MDG_BS_S_DRAD_DOC_API2).
*--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_MDG_BS_S_DRAD_DOC_API INDEX 1 INTO DATA(WA_MDG_BS_S_DRAD_DOC_API2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MDG_BS_S_DRAD_DOC_API>-MANDT = 1.
<MDG_BS_S_DRAD_DOC_API>-DOKAR = 1.
<MDG_BS_S_DRAD_DOC_API>-DOKNR = 1.
<MDG_BS_S_DRAD_DOC_API>-DOKVR = 1.
<MDG_BS_S_DRAD_DOC_API>-DOKTL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MDG_BS_S_DRAD_DOC_API-DWNAM, sy-vline,
  WA_MDG_BS_S_DRAD_DOC_API-DOKST, sy-vline,
  WA_MDG_BS_S_DRAD_DOC_API-LABOR, sy-vline,
  WA_MDG_BS_S_DRAD_DOC_API-AENNR, sy-vline,
  WA_MDG_BS_S_DRAD_DOC_API-WERKA, sy-vline,
  WA_MDG_BS_S_DRAD_DOC_API-LOEDK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MDG_BS_S_DRAD_DOC_API 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_MDG_BS_S_DRAD_DOC_API 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_MDG_BS_S_DRAD_DOC_API INTO WA_MDG_BS_S_DRAD_DOC_API.


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

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

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

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

*Conversion exit TSTLC, internal->external for field CREATED_ATORG
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_MDG_BS_S_DRAD_DOC_API-CREATED_ATORG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDG_BS_S_DRAD_DOC_API-CREATED_ATORG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CHANGED_ATORG
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_MDG_BS_S_DRAD_DOC_API-CHANGED_ATORG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDG_BS_S_DRAD_DOC_API-CHANGED_ATORG.
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_MDG_BS_S_DRAD_DOC_API_STR, 
MANDT TYPE STRING,
DOKAR TYPE STRING,
DOKNR TYPE STRING,
DOKVR TYPE STRING,
DOKTL TYPE STRING,
DWNAM TYPE STRING,
DOKST TYPE STRING,
LABOR TYPE STRING,
AENNR TYPE STRING,
WERKA TYPE STRING,
LOEDK TYPE STRING,
CADKZ TYPE STRING,
PRENR TYPE STRING,
PREVR TYPE STRING,
PRETL TYPE STRING,
PREAR TYPE STRING,
BEGRU TYPE STRING,
FILEP TYPE STRING,
DTTRG TYPE STRING,
DAPPL TYPE STRING,
FILEP1 TYPE STRING,
DTTRG1 TYPE STRING,
DAPPL1 TYPE STRING,
VRLDAT TYPE STRING,
VPRIOR TYPE STRING,
RES1 TYPE STRING,
RES2 TYPE STRING,
RES3 TYPE STRING,
RES4 TYPE STRING,
MRK_FILEP TYPE STRING,
MRK_DTTRG TYPE STRING,
MRK_FILEP1 TYPE STRING,
MRK_DTTRG1 TYPE STRING,
ADATUM TYPE STRING,
DOKNR_VL TYPE STRING,
DOKTL_VL TYPE STRING,
DOKVR_VL TYPE STRING,
FILELEN TYPE STRING,
FILELEN1 TYPE STRING,
CM_RELEVANCE TYPE STRING,
CM_FIXED TYPE STRING,
DOCUMENT_INFO_RECORD_KEY TYPE STRING,
DUMMY_DRAW_INCL_EEW_PS TYPE STRING,
DOC_STATUSEXTERN TYPE STRING,
DOC_DESCRIPTION TYPE STRING,
ORIG_CHECK_IN TYPE STRING,
UPDATEFLAGORG TYPE STRING,
APPNRORG TYPE STRING,
DAPPLORG TYPE STRING,
LANGUORG TYPE STRING,
ACTIVE_VERSIONORG TYPE STRING,
DTTRGORG TYPE STRING,
STORAGE_CATORG TYPE STRING,
PATHNAMEORG TYPE STRING,
FILENAMEORG TYPE STRING,
DESCRIPTIONORG TYPE STRING,
LO_OBJIDORG TYPE STRING,
PH_OBJIDORG TYPE STRING,
FILE_IDORG TYPE STRING,
URLORG TYPE STRING,
CHECKED_INORG TYPE STRING,
CREATED_ATORG TYPE STRING,
CHANGED_ATORG TYPE STRING,
CREATED_BYORG TYPE STRING,
CHANGED_BYORG TYPE STRING,
CONTENT_DESCRIPTIONORG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MDG_BS_S_DRAD_DOC_API_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_MDG_BS_S_DRAD_DOC_API_STR-MANDT sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DOKAR sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DOKNR sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DOKVR sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DOKTL sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DWNAM sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DOKST sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-LABOR sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-AENNR sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-WERKA sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-LOEDK sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-CADKZ sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-PRENR sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-PREVR sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-PRETL sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-PREAR sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-BEGRU sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-FILEP sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DTTRG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DAPPL sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-FILEP1 sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DTTRG1 sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DAPPL1 sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-VRLDAT sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-VPRIOR sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-RES1 sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-RES2 sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-RES3 sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-RES4 sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-MRK_FILEP sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-MRK_DTTRG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-MRK_FILEP1 sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-MRK_DTTRG1 sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-ADATUM sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DOKNR_VL sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DOKTL_VL sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DOKVR_VL sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-FILELEN sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-FILELEN1 sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-CM_RELEVANCE sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-CM_FIXED sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DOCUMENT_INFO_RECORD_KEY sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DUMMY_DRAW_INCL_EEW_PS sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DOC_STATUSEXTERN sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DOC_DESCRIPTION sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-ORIG_CHECK_IN sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-UPDATEFLAGORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-APPNRORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DAPPLORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-LANGUORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-ACTIVE_VERSIONORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DTTRGORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-STORAGE_CATORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-PATHNAMEORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-FILENAMEORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-DESCRIPTIONORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-LO_OBJIDORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-PH_OBJIDORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-FILE_IDORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-URLORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-CHECKED_INORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-CREATED_ATORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-CHANGED_ATORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-CREATED_BYORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-CHANGED_BYORG sy-vline 
WA_MDG_BS_S_DRAD_DOC_API_STR-CONTENT_DESCRIPTIONORG sy-vline      INTO ld_text SEPARATED BY SPACE.

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