ABAP Select data from SAP table MMPUR_ITM_PRICE_CTRL_FLTR_INP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMPUR_ITM_PRICE_CTRL_FLTR_INP
*  INTO TABLE @DATA(IT_MMPUR_ITM_PRICE_CTRL_FLTR_INP2).
*--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_MMPUR_ITM_PRICE_CTRL_FLTR_INP INDEX 1 INTO DATA(WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMPUR_ITM_PRICE_CTRL_FLTR_INP>-PARAMETERS = 1.
<MMPUR_ITM_PRICE_CTRL_FLTR_INP>-BESWK = 1.
<MMPUR_ITM_PRICE_CTRL_FLTR_INP>-BQPRA = 1.
<MMPUR_ITM_PRICE_CTRL_FLTR_INP>-EBZOM = 1.
<MMPUR_ITM_PRICE_CTRL_FLTR_INP>-FCALL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP-INFNR, sy-vline,
  WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP-KONNR, sy-vline,
  WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP-KTPNR, sy-vline,
  WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP-LIFNR, sy-vline,
  WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP-MATNR, sy-vline,
  WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP-NEDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP 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_MMPUR_ITM_PRICE_CTRL_FLTR_INP 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_MMPUR_ITM_PRICE_CTRL_FLTR_INP INTO WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP.


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

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

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

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

*Conversion exit NUMCV, internal->external for field REVLV
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP-REVLV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP-REVLV.
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_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR, 
PARAMETERS TYPE STRING,
BESWK TYPE STRING,
BQPRA TYPE STRING,
EBZOM TYPE STRING,
FCALL TYPE STRING,
INFNR TYPE STRING,
KONNR TYPE STRING,
KTPNR TYPE STRING,
LIFNR TYPE STRING,
MATNR TYPE STRING,
NEDAT TYPE STRING,
PSTYP TYPE STRING,
REVLV TYPE STRING,
SCENARIO TYPE STRING,
VORGA TYPE STRING,
WAERS TYPE STRING,
WERKS TYPE STRING,
KNTTP TYPE STRING,
SERVICE_NAME TYPE STRING,
COMMUNICATION_SCENARIO_ID TYPE STRING,
BE_SRC_SYS TYPE STRING,
ENTITY_NAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_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_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-PARAMETERS sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-BESWK sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-BQPRA sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-EBZOM sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-FCALL sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-INFNR sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-KONNR sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-KTPNR sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-LIFNR sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-MATNR sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-NEDAT sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-PSTYP sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-REVLV sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-SCENARIO sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-VORGA sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-WAERS sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-WERKS sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-KNTTP sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-SERVICE_NAME sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-COMMUNICATION_SCENARIO_ID sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-BE_SRC_SYS sy-vline 
WA_MMPUR_ITM_PRICE_CTRL_FLTR_INP_STR-ENTITY_NAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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