ABAP Select data from SAP table PMXTERM_ALV_DETAIL_DEDUCTION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMXTERM_ALV_DETAIL_DEDUCTION
*  INTO TABLE @DATA(IT_PMXTERM_ALV_DETAIL_DEDUCTION2).
*--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_PMXTERM_ALV_DETAIL_DEDUCTION INDEX 1 INTO DATA(WA_PMXTERM_ALV_DETAIL_DEDUCTION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMXTERM_ALV_DETAIL_DEDUCTION>-RFC = 1.
<PMXTERM_ALV_DETAIL_DEDUCTION>-BUKRS = 1.
<PMXTERM_ALV_DETAIL_DEDUCTION>-WERKS = 1.
<PMXTERM_ALV_DETAIL_DEDUCTION>-BTRTL = 1.
<PMXTERM_ALV_DETAIL_DEDUCTION>-ABKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMXTERM_ALV_DETAIL_DEDUCTION-PERSG, sy-vline,
  WA_PMXTERM_ALV_DETAIL_DEDUCTION-PERSK, sy-vline,
  WA_PMXTERM_ALV_DETAIL_DEDUCTION-PERNR, sy-vline,
  WA_PMXTERM_ALV_DETAIL_DEDUCTION-DLIC, sy-vline,
  WA_PMXTERM_ALV_DETAIL_DEDUCTION-DLFC, sy-vline,
  WA_PMXTERM_ALV_DETAIL_DEDUCTION-DLRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMXTERM_ALV_DETAIL_DEDUCTION 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_PMXTERM_ALV_DETAIL_DEDUCTION 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_PMXTERM_ALV_DETAIL_DEDUCTION INTO WA_PMXTERM_ALV_DETAIL_DEDUCTION.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PMXTERM_ALV_DETAIL_DEDUCTION_STR, 
RFC TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
ABKRS TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
PERNR TYPE STRING,
DLIC TYPE STRING,
DLFC TYPE STRING,
DLRP TYPE STRING,
DOEC TYPE STRING,
DOUD TYPE STRING,
DOFV TYPE STRING,
DODL TYPE STRING,
DOMP TYPE STRING,
DOMF TYPE STRING,
DORU TYPE STRING,
DOCR TYPE STRING,
DSSI TYPE STRING,
DTRT TYPE STRING,
DTSB TYPE STRING,
DTLB TYPE STRING,
DTAB TYPE STRING,
DTPS TYPE STRING,
DTSP TYPE STRING,
DTAT TYPE STRING,
DTSC TYPE STRING,
TOTAL TYPE STRING,
INOCR TYPE STRING,
INPID TYPE STRING,
IPERI TYPE STRING,
PAYDT TYPE STRING,
FAPER TYPE STRING,
OCBEG TYPE STRING,
OCEND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMXTERM_ALV_DETAIL_DEDUCTION_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_PMXTERM_ALV_DETAIL_DEDUCTION_STR-RFC sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-BUKRS sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-WERKS sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-BTRTL sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-ABKRS sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-PERSG sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-PERSK sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-PERNR sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DLIC sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DLFC sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DLRP sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DOEC sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DOUD sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DOFV sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DODL sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DOMP sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DOMF sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DORU sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DOCR sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DSSI sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DTRT sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DTSB sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DTLB sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DTAB sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DTPS sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DTSP sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DTAT sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-DTSC sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-TOTAL sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-INOCR sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-INPID sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-IPERI sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-PAYDT sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-FAPER sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-OCBEG sy-vline 
WA_PMXTERM_ALV_DETAIL_DEDUCTION_STR-OCEND sy-vline      INTO ld_text SEPARATED BY SPACE.

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