ABAP Select data from SAP table BWE_0PM_MEASM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BWE_0PM_MEASM 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 BWE_0PM_MEASM. 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 BWE_0PM_MEASM 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_BWE_0PM_MEASM TYPE STANDARD TABLE OF BWE_0PM_MEASM,
      WA_BWE_0PM_MEASM TYPE BWE_0PM_MEASM,
      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: <BWE_0PM_MEASM> TYPE BWE_0PM_MEASM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BWE_0PM_MEASM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BWE_0PM_MEASM
  INTO TABLE IT_BWE_0PM_MEASM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BWE_0PM_MEASM
*  INTO TABLE @DATA(IT_BWE_0PM_MEASM2).
*--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_BWE_0PM_MEASM INDEX 1 INTO DATA(WA_BWE_0PM_MEASM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BWE_0PM_MEASM ASSIGNING <BWE_0PM_MEASM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BWE_0PM_MEASM>-POINT = 1.
<BWE_0PM_MEASM>-MDOCM = 1.
<BWE_0PM_MEASM>-ROOTD = 1.
<BWE_0PM_MEASM>-MPOBJ = 1.
<BWE_0PM_MEASM>-MPTYP = 1.

ENDLOOP.

LOOP AT IT_BWE_0PM_MEASM INTO WA_BWE_0PM_MEASM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BWE_0PM_MEASM-PSORT, sy-vline,
  WA_BWE_0PM_MEASM-LOCAS, sy-vline,
  WA_BWE_0PM_MEASM-ATINN, sy-vline,
  WA_BWE_0PM_MEASM-IDATE, sy-vline,
  WA_BWE_0PM_MEASM-ITIME, sy-vline,
  WA_BWE_0PM_MEASM-DESIR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BWE_0PM_MEASM 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_BWE_0PM_MEASM 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_BWE_0PM_MEASM INTO WA_BWE_0PM_MEASM.


*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 POINT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BWE_0PM_MEASM-POINT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWE_0PM_MEASM-POINT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MDOCM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BWE_0PM_MEASM-MDOCM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWE_0PM_MEASM-MDOCM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ROOTD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BWE_0PM_MEASM-ROOTD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWE_0PM_MEASM-ROOTD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field LOCAS
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_BWE_0PM_MEASM-LOCAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWE_0PM_MEASM-LOCAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ATINN, internal->external for field ATINN
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_BWE_0PM_MEASM-ATINN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWE_0PM_MEASM-ATINN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RECDU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BWE_0PM_MEASM-RECDU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWE_0PM_MEASM-RECDU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MSSIE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BWE_0PM_MEASM-MSSIE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWE_0PM_MEASM-MSSIE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_BWE_0PM_MEASM-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWE_0PM_MEASM-TPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BWE_0PM_MEASM-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWE_0PM_MEASM-EQUNR.
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_BWE_0PM_MEASM_STR, 
POINT TYPE STRING,
MDOCM TYPE STRING,
ROOTD TYPE STRING,
MPOBJ TYPE STRING,
MPTYP TYPE STRING,
PSORT TYPE STRING,
LOCAS TYPE STRING,
ATINN TYPE STRING,
IDATE TYPE STRING,
ITIME TYPE STRING,
DESIR TYPE STRING,
DESIRI TYPE STRING,
MRMIN TYPE STRING,
MRMINI TYPE STRING,
MRMAX TYPE STRING,
MRMAXI TYPE STRING,
CJUMP TYPE STRING,
PYEAR TYPE STRING,
ERNAM TYPE STRING,
READG TYPE STRING,
RECDV TYPE STRING,
RECDU TYPE STRING,
CNTRR TYPE STRING,
CDIFF TYPE STRING,
CODCT TYPE STRING,
CODGR TYPE STRING,
PREST TYPE STRING,
CANCL TYPE STRING,
MSSIE TYPE STRING,
DIMID TYPE STRING,
INDCT TYPE STRING,
VLCOD TYPE STRING,
DOCAF TYPE STRING,
TPLNR TYPE STRING,
EQUNR TYPE STRING,
TMSTP_BW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BWE_0PM_MEASM_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_BWE_0PM_MEASM_STR-POINT sy-vline 
WA_BWE_0PM_MEASM_STR-MDOCM sy-vline 
WA_BWE_0PM_MEASM_STR-ROOTD sy-vline 
WA_BWE_0PM_MEASM_STR-MPOBJ sy-vline 
WA_BWE_0PM_MEASM_STR-MPTYP sy-vline 
WA_BWE_0PM_MEASM_STR-PSORT sy-vline 
WA_BWE_0PM_MEASM_STR-LOCAS sy-vline 
WA_BWE_0PM_MEASM_STR-ATINN sy-vline 
WA_BWE_0PM_MEASM_STR-IDATE sy-vline 
WA_BWE_0PM_MEASM_STR-ITIME sy-vline 
WA_BWE_0PM_MEASM_STR-DESIR sy-vline 
WA_BWE_0PM_MEASM_STR-DESIRI sy-vline 
WA_BWE_0PM_MEASM_STR-MRMIN sy-vline 
WA_BWE_0PM_MEASM_STR-MRMINI sy-vline 
WA_BWE_0PM_MEASM_STR-MRMAX sy-vline 
WA_BWE_0PM_MEASM_STR-MRMAXI sy-vline 
WA_BWE_0PM_MEASM_STR-CJUMP sy-vline 
WA_BWE_0PM_MEASM_STR-PYEAR sy-vline 
WA_BWE_0PM_MEASM_STR-ERNAM sy-vline 
WA_BWE_0PM_MEASM_STR-READG sy-vline 
WA_BWE_0PM_MEASM_STR-RECDV sy-vline 
WA_BWE_0PM_MEASM_STR-RECDU sy-vline 
WA_BWE_0PM_MEASM_STR-CNTRR sy-vline 
WA_BWE_0PM_MEASM_STR-CDIFF sy-vline 
WA_BWE_0PM_MEASM_STR-CODCT sy-vline 
WA_BWE_0PM_MEASM_STR-CODGR sy-vline 
WA_BWE_0PM_MEASM_STR-PREST sy-vline 
WA_BWE_0PM_MEASM_STR-CANCL sy-vline 
WA_BWE_0PM_MEASM_STR-MSSIE sy-vline 
WA_BWE_0PM_MEASM_STR-DIMID sy-vline 
WA_BWE_0PM_MEASM_STR-INDCT sy-vline 
WA_BWE_0PM_MEASM_STR-VLCOD sy-vline 
WA_BWE_0PM_MEASM_STR-DOCAF sy-vline 
WA_BWE_0PM_MEASM_STR-TPLNR sy-vline 
WA_BWE_0PM_MEASM_STR-EQUNR sy-vline 
WA_BWE_0PM_MEASM_STR-TMSTP_BW sy-vline      INTO ld_text SEPARATED BY SPACE.

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