ABAP Select data from SAP table PGR_APDD1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PGR_APDD1 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 PGR_APDD1. 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 PGR_APDD1 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_PGR_APDD1 TYPE STANDARD TABLE OF PGR_APDD1,
      WA_PGR_APDD1 TYPE PGR_APDD1,
      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: <PGR_APDD1> TYPE PGR_APDD1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PGR_APDD1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PGR_APDD1
  INTO TABLE IT_PGR_APDD1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PGR_APDD1
*  INTO TABLE @DATA(IT_PGR_APDD12).
*--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_PGR_APDD1 INDEX 1 INTO DATA(WA_PGR_APDD12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PGR_APDD1 ASSIGNING <PGR_APDD1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PGR_APDD1>-PERNR = 1.
<PGR_APDD1>-PYEAR = 1.
<PGR_APDD1>-PMONT = 1.
<PGR_APDD1>-APDTP = 1.
<PGR_APDD1>-TIFID = 1.

ENDLOOP.

LOOP AT IT_PGR_APDD1 INTO WA_PGR_APDD1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PGR_APDD1-DEPAR, sy-vline,
  WA_PGR_APDD1-KAD, sy-vline,
  WA_PGR_APDD1-REG01, sy-vline,
  WA_PGR_APDD1-AMKA, sy-vline,
  WA_PGR_APDD1-NACHN, sy-vline,
  WA_PGR_APDD1-VORNA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PGR_APDD1 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_PGR_APDD1 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_PGR_APDD1 INTO WA_PGR_APDD1.


*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 PDATE, internal->external for field GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_PGR_APDD1-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PGR_APDD1-GBDAT.
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_PGR_APDD1_STR, 
PERNR TYPE STRING,
PYEAR TYPE STRING,
PMONT TYPE STRING,
APDTP TYPE STRING,
TIFID TYPE STRING,
DEPAR TYPE STRING,
KAD TYPE STRING,
REG01 TYPE STRING,
AMKA TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
FATHR TYPE STRING,
MOTHR TYPE STRING,
GBDAT TYPE STRING,
AFM TYPE STRING,
DPKAD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PGR_APDD1_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_PGR_APDD1_STR-PERNR sy-vline 
WA_PGR_APDD1_STR-PYEAR sy-vline 
WA_PGR_APDD1_STR-PMONT sy-vline 
WA_PGR_APDD1_STR-APDTP sy-vline 
WA_PGR_APDD1_STR-TIFID sy-vline 
WA_PGR_APDD1_STR-DEPAR sy-vline 
WA_PGR_APDD1_STR-KAD sy-vline 
WA_PGR_APDD1_STR-REG01 sy-vline 
WA_PGR_APDD1_STR-AMKA sy-vline 
WA_PGR_APDD1_STR-NACHN sy-vline 
WA_PGR_APDD1_STR-VORNA sy-vline 
WA_PGR_APDD1_STR-FATHR sy-vline 
WA_PGR_APDD1_STR-MOTHR sy-vline 
WA_PGR_APDD1_STR-GBDAT sy-vline 
WA_PGR_APDD1_STR-AFM sy-vline 
WA_PGR_APDD1_STR-DPKAD sy-vline      INTO ld_text SEPARATED BY SPACE.

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