ABAP Select data from SAP table ADFDR_CRDAT_EA_FH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ADFDR_CRDAT_EA_FH
*  INTO TABLE @DATA(IT_ADFDR_CRDAT_EA_FH2).
*--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_ADFDR_CRDAT_EA_FH INDEX 1 INTO DATA(WA_ADFDR_CRDAT_EA_FH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ADFDR_CRDAT_EA_FH>-CNTR = 1.
<ADFDR_CRDAT_EA_FH>-DIFF = 1.
<ADFDR_CRDAT_EA_FH>-UNIT = 1.
<ADFDR_CRDAT_EA_FH>-LASTDOC = 1.
<ADFDR_CRDAT_EA_FH>-TOTAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ADFDR_CRDAT_EA_FH-LASTRDG, sy-vline,
  WA_ADFDR_CRDAT_EA_FH-POINT, sy-vline,
  WA_ADFDR_CRDAT_EA_FH-PSORT, sy-vline,
  WA_ADFDR_CRDAT_EA_FH-LASTDATE, sy-vline,
  WA_ADFDR_CRDAT_EA_FH-LASTTIME, sy-vline,
  WA_ADFDR_CRDAT_EA_FH-LASTREADER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ADFDR_CRDAT_EA_FH 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_ADFDR_CRDAT_EA_FH 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_ADFDR_CRDAT_EA_FH INTO WA_ADFDR_CRDAT_EA_FH.


*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 LUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_LUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ADFDR_CRDAT_EA_FH-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ADFDR_CRDAT_EA_FH-UNIT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field POINT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ADFDR_CRDAT_EA_FH-POINT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ADFDR_CRDAT_EA_FH-POINT.
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_ADFDR_CRDAT_EA_FH_STR, 
CNTR TYPE STRING,
DIFF TYPE STRING,
UNIT TYPE STRING,
LASTDOC TYPE STRING,
TOTAL TYPE STRING,
LASTRDG TYPE STRING,
POINT TYPE STRING,
PSORT TYPE STRING,
LASTDATE TYPE STRING,
LASTTIME TYPE STRING,
LASTREADER TYPE STRING,
FLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ADFDR_CRDAT_EA_FH_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_ADFDR_CRDAT_EA_FH_STR-CNTR sy-vline 
WA_ADFDR_CRDAT_EA_FH_STR-DIFF sy-vline 
WA_ADFDR_CRDAT_EA_FH_STR-UNIT sy-vline 
WA_ADFDR_CRDAT_EA_FH_STR-LASTDOC sy-vline 
WA_ADFDR_CRDAT_EA_FH_STR-TOTAL sy-vline 
WA_ADFDR_CRDAT_EA_FH_STR-LASTRDG sy-vline 
WA_ADFDR_CRDAT_EA_FH_STR-POINT sy-vline 
WA_ADFDR_CRDAT_EA_FH_STR-PSORT sy-vline 
WA_ADFDR_CRDAT_EA_FH_STR-LASTDATE sy-vline 
WA_ADFDR_CRDAT_EA_FH_STR-LASTTIME sy-vline 
WA_ADFDR_CRDAT_EA_FH_STR-LASTREADER sy-vline 
WA_ADFDR_CRDAT_EA_FH_STR-FLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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