ABAP Select data from SAP table PIQPROC_ADM_DT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQPROC_ADM_DT
*  INTO TABLE @DATA(IT_PIQPROC_ADM_DT2).
*--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_PIQPROC_ADM_DT INDEX 1 INTO DATA(WA_PIQPROC_ADM_DT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQPROC_ADM_DT>-MANDT = 1.
<PIQPROC_ADM_DT>-DOCID = 1.
<PIQPROC_ADM_DT>-LINE = 1.
<PIQPROC_ADM_DT>-STATUS = 1.
<PIQPROC_ADM_DT>-SEQNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQPROC_ADM_DT-CHOICE_NO, sy-vline,
  WA_PIQPROC_ADM_DT-ADM_AYEAR, sy-vline,
  WA_PIQPROC_ADM_DT-ADM_PERID, sy-vline,
  WA_PIQPROC_ADM_DT-ADM_ACLEVEL, sy-vline,
  WA_PIQPROC_ADM_DT-ADM_PROGCLASS, sy-vline,
  WA_PIQPROC_ADM_DT-ADM_PARTT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQPROC_ADM_DT 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_PIQPROC_ADM_DT 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_PIQPROC_ADM_DT INTO WA_PIQPROC_ADM_DT.


*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 ADM_QMNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PIQPROC_ADM_DT-ADM_QMNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQPROC_ADM_DT-ADM_QMNUM.
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_PIQPROC_ADM_DT_STR, 
MANDT TYPE STRING,
DOCID TYPE STRING,
LINE TYPE STRING,
STATUS TYPE STRING,
SEQNR TYPE STRING,
CHOICE_NO TYPE STRING,
ADM_AYEAR TYPE STRING,
ADM_PERID TYPE STRING,
ADM_ACLEVEL TYPE STRING,
ADM_PROGCLASS TYPE STRING,
ADM_PARTT TYPE STRING,
ADM_CATEG TYPE STRING,
ADM_ENRCATEG TYPE STRING,
ADM_CODE TYPE STRING,
ADM_PERCT TYPE STRING,
ADM_QMNUM TYPE STRING,
ADM_STATUS_SUP TYPE STRING,
ADM_DEC TYPE STRING,
ADM_RECPT TYPE STRING,
ADM_WITH_DECL TYPE STRING,
ADM_GUID TYPE STRING,
COKEY TYPE STRING,
ADM_TIMEUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQPROC_ADM_DT_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_PIQPROC_ADM_DT_STR-MANDT sy-vline 
WA_PIQPROC_ADM_DT_STR-DOCID sy-vline 
WA_PIQPROC_ADM_DT_STR-LINE sy-vline 
WA_PIQPROC_ADM_DT_STR-STATUS sy-vline 
WA_PIQPROC_ADM_DT_STR-SEQNR sy-vline 
WA_PIQPROC_ADM_DT_STR-CHOICE_NO sy-vline 
WA_PIQPROC_ADM_DT_STR-ADM_AYEAR sy-vline 
WA_PIQPROC_ADM_DT_STR-ADM_PERID sy-vline 
WA_PIQPROC_ADM_DT_STR-ADM_ACLEVEL sy-vline 
WA_PIQPROC_ADM_DT_STR-ADM_PROGCLASS sy-vline 
WA_PIQPROC_ADM_DT_STR-ADM_PARTT sy-vline 
WA_PIQPROC_ADM_DT_STR-ADM_CATEG sy-vline 
WA_PIQPROC_ADM_DT_STR-ADM_ENRCATEG sy-vline 
WA_PIQPROC_ADM_DT_STR-ADM_CODE sy-vline 
WA_PIQPROC_ADM_DT_STR-ADM_PERCT sy-vline 
WA_PIQPROC_ADM_DT_STR-ADM_QMNUM sy-vline 
WA_PIQPROC_ADM_DT_STR-ADM_STATUS_SUP sy-vline 
WA_PIQPROC_ADM_DT_STR-ADM_DEC sy-vline 
WA_PIQPROC_ADM_DT_STR-ADM_RECPT sy-vline 
WA_PIQPROC_ADM_DT_STR-ADM_WITH_DECL sy-vline 
WA_PIQPROC_ADM_DT_STR-ADM_GUID sy-vline 
WA_PIQPROC_ADM_DT_STR-COKEY sy-vline 
WA_PIQPROC_ADM_DT_STR-ADM_TIMEUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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