ABAP Select data from SAP table PQA_HQAPARP0_ALV into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP PQA_HQAPARP0_ALV 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 PQA_HQAPARP0_ALV. 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 PQA_HQAPARP0_ALV 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_PQA_HQAPARP0_ALV TYPE STANDARD TABLE OF PQA_HQAPARP0_ALV,
      WA_PQA_HQAPARP0_ALV TYPE PQA_HQAPARP0_ALV,
      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: <PQA_HQAPARP0_ALV> TYPE PQA_HQAPARP0_ALV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PQA_HQAPARP0_ALV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PQA_HQAPARP0_ALV
  INTO TABLE IT_PQA_HQAPARP0_ALV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PQA_HQAPARP0_ALV
*  INTO TABLE @DATA(IT_PQA_HQAPARP0_ALV2).
*--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_PQA_HQAPARP0_ALV INDEX 1 INTO DATA(WA_PQA_HQAPARP0_ALV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PQA_HQAPARP0_ALV ASSIGNING <PQA_HQAPARP0_ALV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PQA_HQAPARP0_ALV>-PERNR = 1.
<PQA_HQAPARP0_ALV>-DEPEN = 1.
<PQA_HQAPARP0_ALV>-SUBTY = 1.
<PQA_HQAPARP0_ALV>-OBJPS = 1.
<PQA_HQAPARP0_ALV>-FNAME = 1.

ENDLOOP.

LOOP AT IT_PQA_HQAPARP0_ALV INTO WA_PQA_HQAPARP0_ALV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PQA_HQAPARP0_ALV-NATIO, sy-vline,
  WA_PQA_HQAPARP0_ALV-GESCH, sy-vline,
  WA_PQA_HQAPARP0_ALV-GNDER, sy-vline,
  WA_PQA_HQAPARP0_ALV-GBDAT, sy-vline,
  WA_PQA_HQAPARP0_ALV-GBORT, sy-vline,
  WA_PQA_HQAPARP0_ALV-PERNM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PQA_HQAPARP0_ALV 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_PQA_HQAPARP0_ALV 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_PQA_HQAPARP0_ALV INTO WA_PQA_HQAPARP0_ALV.


*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_PQA_HQAPARP0_ALV-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PQA_HQAPARP0_ALV-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_PQA_HQAPARP0_ALV_STR, 
PERNR TYPE STRING,
DEPEN TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
FNAME TYPE STRING,
NATIO TYPE STRING,
GESCH TYPE STRING,
GNDER TYPE STRING,
GBDAT TYPE STRING,
GBORT TYPE STRING,
PERNM TYPE STRING,
PTNUM TYPE STRING,
FPDAT TYPE STRING,
EXPID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PQA_HQAPARP0_ALV_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_PQA_HQAPARP0_ALV_STR-PERNR sy-vline 
WA_PQA_HQAPARP0_ALV_STR-DEPEN sy-vline 
WA_PQA_HQAPARP0_ALV_STR-SUBTY sy-vline 
WA_PQA_HQAPARP0_ALV_STR-OBJPS sy-vline 
WA_PQA_HQAPARP0_ALV_STR-FNAME sy-vline 
WA_PQA_HQAPARP0_ALV_STR-NATIO sy-vline 
WA_PQA_HQAPARP0_ALV_STR-GESCH sy-vline 
WA_PQA_HQAPARP0_ALV_STR-GNDER sy-vline 
WA_PQA_HQAPARP0_ALV_STR-GBDAT sy-vline 
WA_PQA_HQAPARP0_ALV_STR-GBORT sy-vline 
WA_PQA_HQAPARP0_ALV_STR-PERNM sy-vline 
WA_PQA_HQAPARP0_ALV_STR-PTNUM sy-vline 
WA_PQA_HQAPARP0_ALV_STR-FPDAT sy-vline 
WA_PQA_HQAPARP0_ALV_STR-EXPID sy-vline      INTO ld_text SEPARATED BY SPACE.

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