ABAP Select data from SAP table PMNTRWCALTWC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMNTRWCALTWC
*  INTO TABLE @DATA(IT_PMNTRWCALTWC2).
*--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_PMNTRWCALTWC INDEX 1 INTO DATA(WA_PMNTRWCALTWC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMNTRWCALTWC>-MANDT = 1.
<PMNTRWCALTWC>-WORKCENTERINTERNALID = 1.
<PMNTRWCALTWC>-WORKCENTERTYPECODE = 1.
<PMNTRWCALTWC>-CAPACITYINTERNALID = 1.
<PMNTRWCALTWC>-PLANT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMNTRWCALTWC-WORKCENTER, sy-vline,
  WA_PMNTRWCALTWC-OPERATION, sy-vline,
  WA_PMNTRWCALTWC-MATERIAL, sy-vline,
  WA_PMNTRWCALTWC-PRODUCTIONLINE, sy-vline,
  WA_PMNTRWCALTWC-PRODUCTIONVERSIONTEXT, sy-vline,
  WA_PMNTRWCALTWC-WORKCENTERDESC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMNTRWCALTWC 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_PMNTRWCALTWC 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_PMNTRWCALTWC INTO WA_PMNTRWCALTWC.


*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 NUMCV, internal->external for field OPERATION
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_PMNTRWCALTWC-OPERATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMNTRWCALTWC-OPERATION.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field BILLOFOPERATIONSGROUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMNTRWCALTWC-BILLOFOPERATIONSGROUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMNTRWCALTWC-BILLOFOPERATIONSGROUP.
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_PMNTRWCALTWC_STR, 
MANDT TYPE STRING,
WORKCENTERINTERNALID TYPE STRING,
WORKCENTERTYPECODE TYPE STRING,
CAPACITYINTERNALID TYPE STRING,
PLANT TYPE STRING,
WORKCENTER TYPE STRING,
OPERATION TYPE STRING,
MATERIAL TYPE STRING,
PRODUCTIONLINE TYPE STRING,
PRODUCTIONVERSIONTEXT TYPE STRING,
WORKCENTERDESC TYPE STRING,
BILLOFOPERATIONSGROUP TYPE STRING,
PRODUCTIONVERSION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMNTRWCALTWC_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_PMNTRWCALTWC_STR-MANDT sy-vline 
WA_PMNTRWCALTWC_STR-WORKCENTERINTERNALID sy-vline 
WA_PMNTRWCALTWC_STR-WORKCENTERTYPECODE sy-vline 
WA_PMNTRWCALTWC_STR-CAPACITYINTERNALID sy-vline 
WA_PMNTRWCALTWC_STR-PLANT sy-vline 
WA_PMNTRWCALTWC_STR-WORKCENTER sy-vline 
WA_PMNTRWCALTWC_STR-OPERATION sy-vline 
WA_PMNTRWCALTWC_STR-MATERIAL sy-vline 
WA_PMNTRWCALTWC_STR-PRODUCTIONLINE sy-vline 
WA_PMNTRWCALTWC_STR-PRODUCTIONVERSIONTEXT sy-vline 
WA_PMNTRWCALTWC_STR-WORKCENTERDESC sy-vline 
WA_PMNTRWCALTWC_STR-BILLOFOPERATIONSGROUP sy-vline 
WA_PMNTRWCALTWC_STR-PRODUCTIONVERSION sy-vline      INTO ld_text SEPARATED BY SPACE.

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