ABAP Select data from SAP table BQPEX into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BQPEX 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 BQPEX. 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 BQPEX 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_BQPEX TYPE STANDARD TABLE OF BQPEX,
      WA_BQPEX TYPE BQPEX,
      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: <BQPEX> TYPE BQPEX.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BQPEX
*  INTO TABLE @DATA(IT_BQPEX2).
*--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_BQPEX INDEX 1 INTO DATA(WA_BQPEX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BQPEX>-BESKZ = 1.
<BQPEX>-SOBES = 1.
<BQPEX>-QUNUM = 1.
<BQPEX>-QUPOS = 1.
<BQPEX>-LIFNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BQPEX-FLIEF, sy-vline,
  WA_BQPEX-RESWK, sy-vline,
  WA_BQPEX-BEWRK, sy-vline,
  WA_BQPEX-INFNR, sy-vline,
  WA_BQPEX-EKORG, sy-vline,
  WA_BQPEX-KONNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BQPEX 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_BQPEX 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_BQPEX INTO WA_BQPEX.


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

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BQPEX-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BQPEX-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FLIEF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BQPEX-FLIEF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BQPEX-FLIEF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BQPEX-INFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BQPEX-INFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KONNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BQPEX-KONNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BQPEX-KONNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BQPEX-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BQPEX-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field EMATN
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_BQPEX-EMATN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BQPEX-EMATN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MFRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BQPEX-MFRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BQPEX-MFRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERKZ, internal->external for field IPRKZ
CALL FUNCTION 'CONVERSION_EXIT_PERKZ_OUTPUT'
  EXPORTING
    input =                      WA_BQPEX-IPRKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BQPEX-IPRKZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SRM_CONTRACT_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BQPEX-SRM_CONTRACT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BQPEX-SRM_CONTRACT_ID.
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_BQPEX_STR, 
BESKZ TYPE STRING,
SOBES TYPE STRING,
QUNUM TYPE STRING,
QUPOS TYPE STRING,
LIFNR TYPE STRING,
FLIEF TYPE STRING,
RESWK TYPE STRING,
BEWRK TYPE STRING,
INFNR TYPE STRING,
EKORG TYPE STRING,
KONNR TYPE STRING,
KTPNR TYPE STRING,
VRTYP TYPE STRING,
RETCO TYPE STRING,
FESKZ TYPE STRING,
MEINS TYPE STRING,
VERID TYPE STRING,
PSTYP TYPE STRING,
EMATN TYPE STRING,
MPROF TYPE STRING,
MFRNR TYPE STRING,
MFRPN TYPE STRING,
EMNFR TYPE STRING,
PLIFZ TYPE STRING,
BQSEL TYPE STRING,
SOURCING_DONE TYPE STRING,
BESWK TYPE STRING,
RESLO TYPE STRING,
ESOKZ TYPE STRING,
MHDRZ TYPE STRING,
IPRKZ TYPE STRING,
SRM_CONTRACT_ID TYPE STRING,
SRM_CONTRACT_ITM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BQPEX_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_BQPEX_STR-BESKZ sy-vline 
WA_BQPEX_STR-SOBES sy-vline 
WA_BQPEX_STR-QUNUM sy-vline 
WA_BQPEX_STR-QUPOS sy-vline 
WA_BQPEX_STR-LIFNR sy-vline 
WA_BQPEX_STR-FLIEF sy-vline 
WA_BQPEX_STR-RESWK sy-vline 
WA_BQPEX_STR-BEWRK sy-vline 
WA_BQPEX_STR-INFNR sy-vline 
WA_BQPEX_STR-EKORG sy-vline 
WA_BQPEX_STR-KONNR sy-vline 
WA_BQPEX_STR-KTPNR sy-vline 
WA_BQPEX_STR-VRTYP sy-vline 
WA_BQPEX_STR-RETCO sy-vline 
WA_BQPEX_STR-FESKZ sy-vline 
WA_BQPEX_STR-MEINS sy-vline 
WA_BQPEX_STR-VERID sy-vline 
WA_BQPEX_STR-PSTYP sy-vline 
WA_BQPEX_STR-EMATN sy-vline 
WA_BQPEX_STR-MPROF sy-vline 
WA_BQPEX_STR-MFRNR sy-vline 
WA_BQPEX_STR-MFRPN sy-vline 
WA_BQPEX_STR-EMNFR sy-vline 
WA_BQPEX_STR-PLIFZ sy-vline 
WA_BQPEX_STR-BQSEL sy-vline 
WA_BQPEX_STR-SOURCING_DONE sy-vline 
WA_BQPEX_STR-BESWK sy-vline 
WA_BQPEX_STR-RESLO sy-vline 
WA_BQPEX_STR-ESOKZ sy-vline 
WA_BQPEX_STR-MHDRZ sy-vline 
WA_BQPEX_STR-IPRKZ sy-vline 
WA_BQPEX_STR-SRM_CONTRACT_ID sy-vline 
WA_BQPEX_STR-SRM_CONTRACT_ITM sy-vline      INTO ld_text SEPARATED BY SPACE.

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