ABAP Select data from SAP table PQAP_HQAPPEPP_SUBTAB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PQAP_HQAPPEPP_SUBTAB
*  INTO TABLE @DATA(IT_PQAP_HQAPPEPP_SUBTAB2).
*--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_PQAP_HQAPPEPP_SUBTAB INDEX 1 INTO DATA(WA_PQAP_HQAPPEPP_SUBTAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PQAP_HQAPPEPP_SUBTAB>-SEQNO = 1.
<PQAP_HQAPPEPP_SUBTAB>-PLANS = 1.
<PQAP_HQAPPEPP_SUBTAB>-FNAME = 1.
<PQAP_HQAPPEPP_SUBTAB>-BANKA = 1.
<PQAP_HQAPPEPP_SUBTAB>-ENTDT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PQAP_HQAPPEPP_SUBTAB-INCDT, sy-vline,
  WA_PQAP_HQAPPEPP_SUBTAB-INCAM, sy-vline,
  WA_PQAP_HQAPPEPP_SUBTAB-PRESA, sy-vline,
  WA_PQAP_HQAPPEPP_SUBTAB-CURSA, sy-vline,
  WA_PQAP_HQAPPEPP_SUBTAB-RETAM, sy-vline,
  WA_PQAP_HQAPPEPP_SUBTAB-PAYAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PQAP_HQAPPEPP_SUBTAB 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_PQAP_HQAPPEPP_SUBTAB 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_PQAP_HQAPPEPP_SUBTAB INTO WA_PQAP_HQAPPEPP_SUBTAB.


*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_PQAP_HQAPPEPP_SUBTAB_STR, 
SEQNO TYPE STRING,
PLANS TYPE STRING,
FNAME TYPE STRING,
BANKA TYPE STRING,
ENTDT TYPE STRING,
INCDT TYPE STRING,
INCAM TYPE STRING,
PRESA TYPE STRING,
CURSA TYPE STRING,
RETAM TYPE STRING,
PAYAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PQAP_HQAPPEPP_SUBTAB_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_PQAP_HQAPPEPP_SUBTAB_STR-SEQNO sy-vline 
WA_PQAP_HQAPPEPP_SUBTAB_STR-PLANS sy-vline 
WA_PQAP_HQAPPEPP_SUBTAB_STR-FNAME sy-vline 
WA_PQAP_HQAPPEPP_SUBTAB_STR-BANKA sy-vline 
WA_PQAP_HQAPPEPP_SUBTAB_STR-ENTDT sy-vline 
WA_PQAP_HQAPPEPP_SUBTAB_STR-INCDT sy-vline 
WA_PQAP_HQAPPEPP_SUBTAB_STR-INCAM sy-vline 
WA_PQAP_HQAPPEPP_SUBTAB_STR-PRESA sy-vline 
WA_PQAP_HQAPPEPP_SUBTAB_STR-CURSA sy-vline 
WA_PQAP_HQAPPEPP_SUBTAB_STR-RETAM sy-vline 
WA_PQAP_HQAPPEPP_SUBTAB_STR-PAYAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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