ABAP Select data from SAP table IPRQH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPRQH
*  INTO TABLE @DATA(IT_IPRQH2).
*--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_IPRQH INDEX 1 INTO DATA(WA_IPRQH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPRQH>-MANDT = 1.
<IPRQH>-BUKRS = 1.
<IPRQH>-BELNR = 1.
<IPRQH>-GJAHR = 1.
<IPRQH>-MONAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPRQH-BLDAT, sy-vline,
  WA_IPRQH-BKTXT, sy-vline,
  WA_IPRQH-XBLNR, sy-vline,
  WA_IPRQH-BLART, sy-vline,
  WA_IPRQH-WAERS, sy-vline,
  WA_IPRQH-VRGNG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPRQH 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_IPRQH 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_IPRQH INTO WA_IPRQH.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPRQH-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPRQH-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IPRQH-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPRQH-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_IPRQH-KURSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPRQH-KURSF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOTKZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPRQH-LOTKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPRQH-LOTKZ.
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_IPRQH_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
MONAT TYPE STRING,
BLDAT TYPE STRING,
BKTXT TYPE STRING,
XBLNR TYPE STRING,
BLART TYPE STRING,
WAERS TYPE STRING,
VRGNG TYPE STRING,
ERFAS TYPE STRING,
ERDAT TYPE STRING,
AENDE TYPE STRING,
BUDAT TYPE STRING,
KURSF TYPE STRING,
WWERT TYPE STRING,
XRELI TYPE STRING,
LOTKZ TYPE STRING,
XBWAE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPRQH_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_IPRQH_STR-MANDT sy-vline 
WA_IPRQH_STR-BUKRS sy-vline 
WA_IPRQH_STR-BELNR sy-vline 
WA_IPRQH_STR-GJAHR sy-vline 
WA_IPRQH_STR-MONAT sy-vline 
WA_IPRQH_STR-BLDAT sy-vline 
WA_IPRQH_STR-BKTXT sy-vline 
WA_IPRQH_STR-XBLNR sy-vline 
WA_IPRQH_STR-BLART sy-vline 
WA_IPRQH_STR-WAERS sy-vline 
WA_IPRQH_STR-VRGNG sy-vline 
WA_IPRQH_STR-ERFAS sy-vline 
WA_IPRQH_STR-ERDAT sy-vline 
WA_IPRQH_STR-AENDE sy-vline 
WA_IPRQH_STR-BUDAT sy-vline 
WA_IPRQH_STR-KURSF sy-vline 
WA_IPRQH_STR-WWERT sy-vline 
WA_IPRQH_STR-XRELI sy-vline 
WA_IPRQH_STR-LOTKZ sy-vline 
WA_IPRQH_STR-XBWAE sy-vline      INTO ld_text SEPARATED BY SPACE.

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