ABAP Select data from SAP table BIW_0PM_MPLAN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BIW_0PM_MPLAN 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 BIW_0PM_MPLAN. 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 BIW_0PM_MPLAN 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_BIW_0PM_MPLAN TYPE STANDARD TABLE OF BIW_0PM_MPLAN,
      WA_BIW_0PM_MPLAN TYPE BIW_0PM_MPLAN,
      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: <BIW_0PM_MPLAN> TYPE BIW_0PM_MPLAN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BIW_0PM_MPLAN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BIW_0PM_MPLAN
  INTO TABLE IT_BIW_0PM_MPLAN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BIW_0PM_MPLAN
*  INTO TABLE @DATA(IT_BIW_0PM_MPLAN2).
*--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_BIW_0PM_MPLAN INDEX 1 INTO DATA(WA_BIW_0PM_MPLAN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BIW_0PM_MPLAN ASSIGNING <BIW_0PM_MPLAN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BIW_0PM_MPLAN>-MANDT = 1.
<BIW_0PM_MPLAN>-WARPL = 1.
<BIW_0PM_MPLAN>-STRAT = 1.
<BIW_0PM_MPLAN>-MPTYP = 1.
<BIW_0PM_MPLAN>-WAPOS = 1.

ENDLOOP.

LOOP AT IT_BIW_0PM_MPLAN INTO WA_BIW_0PM_MPLAN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BIW_0PM_MPLAN-EQUNR, sy-vline,
  WA_BIW_0PM_MPLAN-PLNTY, sy-vline,
  WA_BIW_0PM_MPLAN-PLNNR, sy-vline,
  WA_BIW_0PM_MPLAN-PLNAL, sy-vline,
  WA_BIW_0PM_MPLAN-WPGRP, sy-vline,
  WA_BIW_0PM_MPLAN-GEWRK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BIW_0PM_MPLAN 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_BIW_0PM_MPLAN 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_BIW_0PM_MPLAN INTO WA_BIW_0PM_MPLAN.


*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 WARPL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_0PM_MPLAN-WARPL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_0PM_MPLAN-WARPL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WAPOS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_0PM_MPLAN-WAPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_0PM_MPLAN-WAPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_0PM_MPLAN-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_0PM_MPLAN-EQUNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_0PM_MPLAN-PLNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_0PM_MPLAN-PLNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_0PM_MPLAN-PLNAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_0PM_MPLAN-PLNAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field SERIALNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_BIW_0PM_MPLAN-SERIALNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_0PM_MPLAN-SERIALNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field SERMAT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_BIW_0PM_MPLAN-SERMAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_0PM_MPLAN-SERMAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_BIW_0PM_MPLAN-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_0PM_MPLAN-TPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_0PM_MPLAN-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_0PM_MPLAN-KOSTL.
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_BIW_0PM_MPLAN_STR, 
MANDT TYPE STRING,
WARPL TYPE STRING,
STRAT TYPE STRING,
MPTYP TYPE STRING,
WAPOS TYPE STRING,
EQUNR TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
WPGRP TYPE STRING,
GEWRK TYPE STRING,
IWERK TYPE STRING,
AUART TYPE STRING,
ILART TYPE STRING,
SERIALNR TYPE STRING,
SERMAT TYPE STRING,
PRIOK TYPE STRING,
ABNUM TYPE STRING,
ZAEHL TYPE STRING,
NPLDA TYPE STRING,
HORDA TYPE STRING,
TPLNR TYPE STRING,
STORT TYPE STRING,
MSGRP TYPE STRING,
BEBER TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
VKORG TYPE STRING,
SPART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BIW_0PM_MPLAN_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_BIW_0PM_MPLAN_STR-MANDT sy-vline 
WA_BIW_0PM_MPLAN_STR-WARPL sy-vline 
WA_BIW_0PM_MPLAN_STR-STRAT sy-vline 
WA_BIW_0PM_MPLAN_STR-MPTYP sy-vline 
WA_BIW_0PM_MPLAN_STR-WAPOS sy-vline 
WA_BIW_0PM_MPLAN_STR-EQUNR sy-vline 
WA_BIW_0PM_MPLAN_STR-PLNTY sy-vline 
WA_BIW_0PM_MPLAN_STR-PLNNR sy-vline 
WA_BIW_0PM_MPLAN_STR-PLNAL sy-vline 
WA_BIW_0PM_MPLAN_STR-WPGRP sy-vline 
WA_BIW_0PM_MPLAN_STR-GEWRK sy-vline 
WA_BIW_0PM_MPLAN_STR-IWERK sy-vline 
WA_BIW_0PM_MPLAN_STR-AUART sy-vline 
WA_BIW_0PM_MPLAN_STR-ILART sy-vline 
WA_BIW_0PM_MPLAN_STR-SERIALNR sy-vline 
WA_BIW_0PM_MPLAN_STR-SERMAT sy-vline 
WA_BIW_0PM_MPLAN_STR-PRIOK sy-vline 
WA_BIW_0PM_MPLAN_STR-ABNUM sy-vline 
WA_BIW_0PM_MPLAN_STR-ZAEHL sy-vline 
WA_BIW_0PM_MPLAN_STR-NPLDA sy-vline 
WA_BIW_0PM_MPLAN_STR-HORDA sy-vline 
WA_BIW_0PM_MPLAN_STR-TPLNR sy-vline 
WA_BIW_0PM_MPLAN_STR-STORT sy-vline 
WA_BIW_0PM_MPLAN_STR-MSGRP sy-vline 
WA_BIW_0PM_MPLAN_STR-BEBER sy-vline 
WA_BIW_0PM_MPLAN_STR-KOKRS sy-vline 
WA_BIW_0PM_MPLAN_STR-KOSTL sy-vline 
WA_BIW_0PM_MPLAN_STR-VKORG sy-vline 
WA_BIW_0PM_MPLAN_STR-SPART sy-vline      INTO ld_text SEPARATED BY SPACE.

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