ABAP Select data from SAP table MMPURUI_MONITOR_POWL_STY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMPURUI_MONITOR_POWL_STY
*  INTO TABLE @DATA(IT_MMPURUI_MONITOR_POWL_STY2).
*--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_MMPURUI_MONITOR_POWL_STY INDEX 1 INTO DATA(WA_MMPURUI_MONITOR_POWL_STY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMPURUI_MONITOR_POWL_STY>-EBELN = 1.
<MMPURUI_MONITOR_POWL_STY>-EBELP = 1.
<MMPURUI_MONITOR_POWL_STY>-ETENR = 1.
<MMPURUI_MONITOR_POWL_STY>-BSTYP = 1.
<MMPURUI_MONITOR_POWL_STY>-BSTXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMPURUI_MONITOR_POWL_STY-BSART, sy-vline,
  WA_MMPURUI_MONITOR_POWL_STY-BATXT, sy-vline,
  WA_MMPURUI_MONITOR_POWL_STY-PSTYP, sy-vline,
  WA_MMPURUI_MONITOR_POWL_STY-EPSTP, sy-vline,
  WA_MMPURUI_MONITOR_POWL_STY-PTEXT, sy-vline,
  WA_MMPURUI_MONITOR_POWL_STY-BUKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMPURUI_MONITOR_POWL_STY 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_MMPURUI_MONITOR_POWL_STY 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_MMPURUI_MONITOR_POWL_STY INTO WA_MMPURUI_MONITOR_POWL_STY.


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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field LOG_SYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MMPURUI_MONITOR_POWL_STY-LOG_SYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMPURUI_MONITOR_POWL_STY-LOG_SYS.
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_MMPURUI_MONITOR_POWL_STY_STR, 
EBELN TYPE STRING,
EBELP TYPE STRING,
ETENR TYPE STRING,
BSTYP TYPE STRING,
BSTXT TYPE STRING,
BSART TYPE STRING,
BATXT TYPE STRING,
PSTYP TYPE STRING,
EPSTP TYPE STRING,
PTEXT TYPE STRING,
BUKRS TYPE STRING,
BUTXT TYPE STRING,
EKORG TYPE STRING,
EKOTX TYPE STRING,
EKGRP TYPE STRING,
EKNAM TYPE STRING,
LIFNR TYPE STRING,
LIFTX TYPE STRING,
MATNR TYPE STRING,
EMATN TYPE STRING,
TXZ01 TYPE STRING,
MATKL TYPE STRING,
WGBEZ TYPE STRING,
MTART TYPE STRING,
MTBEZ TYPE STRING,
WERKS TYPE STRING,
WERTX TYPE STRING,
LGORT TYPE STRING,
LGOBE TYPE STRING,
ERNAM TYPE STRING,
BEDAT TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
NETPR TYPE STRING,
WAERS TYPE STRING,
NETWR TYPE STRING,
LOEKZ TYPE STRING,
EINDT TYPE STRING,
BSTAE TYPE STRING,
BSBEZ TYPE STRING,
EBTYP TYPE STRING,
EXPCNFDT TYPE STRING,
UEBTO TYPE STRING,
UNTTO TYPE STRING,
UEBTK TYPE STRING,
GJAHR TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
WEMNG TYPE STRING,
TFRAME TYPE STRING,
LOG_SYS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMPURUI_MONITOR_POWL_STY_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_MMPURUI_MONITOR_POWL_STY_STR-EBELN sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-EBELP sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-ETENR sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-BSTYP sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-BSTXT sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-BSART sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-BATXT sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-PSTYP sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-EPSTP sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-PTEXT sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-BUKRS sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-BUTXT sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-EKORG sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-EKOTX sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-EKGRP sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-EKNAM sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-LIFNR sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-LIFTX sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-MATNR sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-EMATN sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-TXZ01 sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-MATKL sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-WGBEZ sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-MTART sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-MTBEZ sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-WERKS sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-WERTX sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-LGORT sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-LGOBE sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-ERNAM sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-BEDAT sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-MENGE sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-MEINS sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-NETPR sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-WAERS sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-NETWR sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-LOEKZ sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-EINDT sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-BSTAE sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-BSBEZ sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-EBTYP sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-EXPCNFDT sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-UEBTO sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-UNTTO sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-UEBTK sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-GJAHR sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-BELNR sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-BUZEI sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-WEMNG sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-TFRAME sy-vline 
WA_MMPURUI_MONITOR_POWL_STY_STR-LOG_SYS sy-vline      INTO ld_text SEPARATED BY SPACE.

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