ABAP Select data from SAP table P2RQ_QHDA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P2RQ_QHDA 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 P2RQ_QHDA. 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 P2RQ_QHDA 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_P2RQ_QHDA TYPE STANDARD TABLE OF P2RQ_QHDA,
      WA_P2RQ_QHDA TYPE P2RQ_QHDA,
      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: <P2RQ_QHDA> TYPE P2RQ_QHDA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P2RQ_QHDA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P2RQ_QHDA
  INTO TABLE IT_P2RQ_QHDA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P2RQ_QHDA
*  INTO TABLE @DATA(IT_P2RQ_QHDA2).
*--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_P2RQ_QHDA INDEX 1 INTO DATA(WA_P2RQ_QHDA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P2RQ_QHDA ASSIGNING <P2RQ_QHDA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P2RQ_QHDA>-MANDT = 1.
<P2RQ_QHDA>-DCT_PERNR = 1.
<P2RQ_QHDA>-DCT_SEQNR = 1.
<P2RQ_QHDA>-DCT_ROWID = 1.
<P2RQ_QHDA>-ENDDA = 1.

ENDLOOP.

LOOP AT IT_P2RQ_QHDA INTO WA_P2RQ_QHDA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P2RQ_QHDA-BEGDA, sy-vline,
  WA_P2RQ_QHDA-REACD, sy-vline,
  WA_P2RQ_QHDA-UPHDA, sy-vline,
  WA_P2RQ_QHDA-PERTG, sy-vline,
  WA_P2RQ_QHDA-EMPCT, sy-vline,
  WA_P2RQ_QHDA-SAIND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P2RQ_QHDA 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_P2RQ_QHDA 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_P2RQ_QHDA INTO WA_P2RQ_QHDA.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_P2RQ_QHDA_STR, 
MANDT TYPE STRING,
DCT_PERNR TYPE STRING,
DCT_SEQNR TYPE STRING,
DCT_ROWID TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
REACD TYPE STRING,
UPHDA TYPE STRING,
PERTG TYPE STRING,
EMPCT TYPE STRING,
SAIND TYPE STRING,
SADAT TYPE STRING,
CTHFD TYPE STRING,
CTAPP TYPE STRING,
DISHF TYPE STRING,
VPERN TYPE STRING,
DRVAL TYPE STRING,
INVAL TYPE STRING,
PLANS TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
TRFAR TYPE STRING,
TRFGB TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
HLG01 TYPE STRING,
HAJ01 TYPE STRING,
HLG02 TYPE STRING,
HAJ02 TYPE STRING,
HLG03 TYPE STRING,
HAJ03 TYPE STRING,
HLG04 TYPE STRING,
HAJ04 TYPE STRING,
HLG05 TYPE STRING,
HAJ05 TYPE STRING,
HLG06 TYPE STRING,
HAJ06 TYPE STRING,
HLG07 TYPE STRING,
HAJ07 TYPE STRING,
HLG08 TYPE STRING,
HAJ08 TYPE STRING,
HLG09 TYPE STRING,
HAJ09 TYPE STRING,
HLG10 TYPE STRING,
HAJ10 TYPE STRING,
HLG11 TYPE STRING,
HAJ11 TYPE STRING,
HLG12 TYPE STRING,
HAJ12 TYPE STRING,
HLG13 TYPE STRING,
HAJ13 TYPE STRING,
HLG14 TYPE STRING,
HAJ14 TYPE STRING,
HLG15 TYPE STRING,
HAJ15 TYPE STRING,
HLG16 TYPE STRING,
HAJ16 TYPE STRING,
HLG17 TYPE STRING,
HAJ17 TYPE STRING,
HLG18 TYPE STRING,
HAJ18 TYPE STRING,
HLG19 TYPE STRING,
HAJ19 TYPE STRING,
HLG20 TYPE STRING,
HAJ20 TYPE STRING,
NLG01 TYPE STRING,
NAJ01 TYPE STRING,
NLG02 TYPE STRING,
NAJ02 TYPE STRING,
NLG03 TYPE STRING,
NAJ03 TYPE STRING,
NLG04 TYPE STRING,
NAJ04 TYPE STRING,
NLG05 TYPE STRING,
NAJ05 TYPE STRING,
NLG06 TYPE STRING,
NAJ06 TYPE STRING,
NLG07 TYPE STRING,
NAJ07 TYPE STRING,
NLG08 TYPE STRING,
NAJ08 TYPE STRING,
NLG09 TYPE STRING,
NAJ09 TYPE STRING,
NLG10 TYPE STRING,
NAJ10 TYPE STRING,
NLG11 TYPE STRING,
NAJ11 TYPE STRING,
NLG12 TYPE STRING,
NAJ12 TYPE STRING,
NLG13 TYPE STRING,
NAJ13 TYPE STRING,
NLG14 TYPE STRING,
NAJ14 TYPE STRING,
NLG15 TYPE STRING,
NAJ15 TYPE STRING,
NLG16 TYPE STRING,
NAJ16 TYPE STRING,
NLG17 TYPE STRING,
NAJ17 TYPE STRING,
NLG18 TYPE STRING,
NAJ18 TYPE STRING,
NLG19 TYPE STRING,
NAJ19 TYPE STRING,
NLG20 TYPE STRING,
NAJ20 TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P2RQ_QHDA_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_P2RQ_QHDA_STR-MANDT sy-vline 
WA_P2RQ_QHDA_STR-DCT_PERNR sy-vline 
WA_P2RQ_QHDA_STR-DCT_SEQNR sy-vline 
WA_P2RQ_QHDA_STR-DCT_ROWID sy-vline 
WA_P2RQ_QHDA_STR-ENDDA sy-vline 
WA_P2RQ_QHDA_STR-BEGDA sy-vline 
WA_P2RQ_QHDA_STR-REACD sy-vline 
WA_P2RQ_QHDA_STR-UPHDA sy-vline 
WA_P2RQ_QHDA_STR-PERTG sy-vline 
WA_P2RQ_QHDA_STR-EMPCT sy-vline 
WA_P2RQ_QHDA_STR-SAIND sy-vline 
WA_P2RQ_QHDA_STR-SADAT sy-vline 
WA_P2RQ_QHDA_STR-CTHFD sy-vline 
WA_P2RQ_QHDA_STR-CTAPP sy-vline 
WA_P2RQ_QHDA_STR-DISHF sy-vline 
WA_P2RQ_QHDA_STR-VPERN sy-vline 
WA_P2RQ_QHDA_STR-DRVAL sy-vline 
WA_P2RQ_QHDA_STR-INVAL sy-vline 
WA_P2RQ_QHDA_STR-PLANS sy-vline 
WA_P2RQ_QHDA_STR-WERKS sy-vline 
WA_P2RQ_QHDA_STR-BTRTL sy-vline 
WA_P2RQ_QHDA_STR-PERSG sy-vline 
WA_P2RQ_QHDA_STR-PERSK sy-vline 
WA_P2RQ_QHDA_STR-TRFAR sy-vline 
WA_P2RQ_QHDA_STR-TRFGB sy-vline 
WA_P2RQ_QHDA_STR-TRFGR sy-vline 
WA_P2RQ_QHDA_STR-TRFST sy-vline 
WA_P2RQ_QHDA_STR-HLG01 sy-vline 
WA_P2RQ_QHDA_STR-HAJ01 sy-vline 
WA_P2RQ_QHDA_STR-HLG02 sy-vline 
WA_P2RQ_QHDA_STR-HAJ02 sy-vline 
WA_P2RQ_QHDA_STR-HLG03 sy-vline 
WA_P2RQ_QHDA_STR-HAJ03 sy-vline 
WA_P2RQ_QHDA_STR-HLG04 sy-vline 
WA_P2RQ_QHDA_STR-HAJ04 sy-vline 
WA_P2RQ_QHDA_STR-HLG05 sy-vline 
WA_P2RQ_QHDA_STR-HAJ05 sy-vline 
WA_P2RQ_QHDA_STR-HLG06 sy-vline 
WA_P2RQ_QHDA_STR-HAJ06 sy-vline 
WA_P2RQ_QHDA_STR-HLG07 sy-vline 
WA_P2RQ_QHDA_STR-HAJ07 sy-vline 
WA_P2RQ_QHDA_STR-HLG08 sy-vline 
WA_P2RQ_QHDA_STR-HAJ08 sy-vline 
WA_P2RQ_QHDA_STR-HLG09 sy-vline 
WA_P2RQ_QHDA_STR-HAJ09 sy-vline 
WA_P2RQ_QHDA_STR-HLG10 sy-vline 
WA_P2RQ_QHDA_STR-HAJ10 sy-vline 
WA_P2RQ_QHDA_STR-HLG11 sy-vline 
WA_P2RQ_QHDA_STR-HAJ11 sy-vline 
WA_P2RQ_QHDA_STR-HLG12 sy-vline 
WA_P2RQ_QHDA_STR-HAJ12 sy-vline 
WA_P2RQ_QHDA_STR-HLG13 sy-vline 
WA_P2RQ_QHDA_STR-HAJ13 sy-vline 
WA_P2RQ_QHDA_STR-HLG14 sy-vline 
WA_P2RQ_QHDA_STR-HAJ14 sy-vline 
WA_P2RQ_QHDA_STR-HLG15 sy-vline 
WA_P2RQ_QHDA_STR-HAJ15 sy-vline 
WA_P2RQ_QHDA_STR-HLG16 sy-vline 
WA_P2RQ_QHDA_STR-HAJ16 sy-vline 
WA_P2RQ_QHDA_STR-HLG17 sy-vline 
WA_P2RQ_QHDA_STR-HAJ17 sy-vline 
WA_P2RQ_QHDA_STR-HLG18 sy-vline 
WA_P2RQ_QHDA_STR-HAJ18 sy-vline 
WA_P2RQ_QHDA_STR-HLG19 sy-vline 
WA_P2RQ_QHDA_STR-HAJ19 sy-vline 
WA_P2RQ_QHDA_STR-HLG20 sy-vline 
WA_P2RQ_QHDA_STR-HAJ20 sy-vline 
WA_P2RQ_QHDA_STR-NLG01 sy-vline 
WA_P2RQ_QHDA_STR-NAJ01 sy-vline 
WA_P2RQ_QHDA_STR-NLG02 sy-vline 
WA_P2RQ_QHDA_STR-NAJ02 sy-vline 
WA_P2RQ_QHDA_STR-NLG03 sy-vline 
WA_P2RQ_QHDA_STR-NAJ03 sy-vline 
WA_P2RQ_QHDA_STR-NLG04 sy-vline 
WA_P2RQ_QHDA_STR-NAJ04 sy-vline 
WA_P2RQ_QHDA_STR-NLG05 sy-vline 
WA_P2RQ_QHDA_STR-NAJ05 sy-vline 
WA_P2RQ_QHDA_STR-NLG06 sy-vline 
WA_P2RQ_QHDA_STR-NAJ06 sy-vline 
WA_P2RQ_QHDA_STR-NLG07 sy-vline 
WA_P2RQ_QHDA_STR-NAJ07 sy-vline 
WA_P2RQ_QHDA_STR-NLG08 sy-vline 
WA_P2RQ_QHDA_STR-NAJ08 sy-vline 
WA_P2RQ_QHDA_STR-NLG09 sy-vline 
WA_P2RQ_QHDA_STR-NAJ09 sy-vline 
WA_P2RQ_QHDA_STR-NLG10 sy-vline 
WA_P2RQ_QHDA_STR-NAJ10 sy-vline 
WA_P2RQ_QHDA_STR-NLG11 sy-vline 
WA_P2RQ_QHDA_STR-NAJ11 sy-vline 
WA_P2RQ_QHDA_STR-NLG12 sy-vline 
WA_P2RQ_QHDA_STR-NAJ12 sy-vline 
WA_P2RQ_QHDA_STR-NLG13 sy-vline 
WA_P2RQ_QHDA_STR-NAJ13 sy-vline 
WA_P2RQ_QHDA_STR-NLG14 sy-vline 
WA_P2RQ_QHDA_STR-NAJ14 sy-vline 
WA_P2RQ_QHDA_STR-NLG15 sy-vline 
WA_P2RQ_QHDA_STR-NAJ15 sy-vline 
WA_P2RQ_QHDA_STR-NLG16 sy-vline 
WA_P2RQ_QHDA_STR-NAJ16 sy-vline 
WA_P2RQ_QHDA_STR-NLG17 sy-vline 
WA_P2RQ_QHDA_STR-NAJ17 sy-vline 
WA_P2RQ_QHDA_STR-NLG18 sy-vline 
WA_P2RQ_QHDA_STR-NAJ18 sy-vline 
WA_P2RQ_QHDA_STR-NLG19 sy-vline 
WA_P2RQ_QHDA_STR-NAJ19 sy-vline 
WA_P2RQ_QHDA_STR-NLG20 sy-vline 
WA_P2RQ_QHDA_STR-NAJ20 sy-vline 
WA_P2RQ_QHDA_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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