ABAP Select data from SAP table PMXSOSA_ALV_OVERVIEW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMXSOSA_ALV_OVERVIEW
*  INTO TABLE @DATA(IT_PMXSOSA_ALV_OVERVIEW2).
*--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_PMXSOSA_ALV_OVERVIEW INDEX 1 INTO DATA(WA_PMXSOSA_ALV_OVERVIEW2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMXSOSA_ALV_OVERVIEW-PERSG, sy-vline,
  WA_PMXSOSA_ALV_OVERVIEW-PERSK, sy-vline,
  WA_PMXSOSA_ALV_OVERVIEW-PERNR, sy-vline,
  WA_PMXSOSA_ALV_OVERVIEW-NPNAM, sy-vline,
  WA_PMXSOSA_ALV_OVERVIEW-REPAT, sy-vline,
  WA_PMXSOSA_ALV_OVERVIEW-HIRDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMXSOSA_ALV_OVERVIEW 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_PMXSOSA_ALV_OVERVIEW 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_PMXSOSA_ALV_OVERVIEW INTO WA_PMXSOSA_ALV_OVERVIEW.


*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_PMXSOSA_ALV_OVERVIEW_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,
NPNAM TYPE STRING,
REPAT TYPE STRING,
HIRDA TYPE STRING,
FIRDA TYPE STRING,
SNRTY TYPE STRING,
PLANS TYPE STRING,
FSDIA TYPE STRING,
SDIA TYPE STRING,
SDIFJ TYPE STRING,
SDIVR TYPE STRING,
SDI TYPE STRING,
SDIMX TYPE STRING,
CHDAT TYPE STRING,
INREP TYPE STRING,
SEQNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMXSOSA_ALV_OVERVIEW_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_PMXSOSA_ALV_OVERVIEW_STR-RFC sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-BUKRS sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-WERKS sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-BTRTL sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-ABKRS sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-PERSG sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-PERSK sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-PERNR sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-NPNAM sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-REPAT sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-HIRDA sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-FIRDA sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-SNRTY sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-PLANS sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-FSDIA sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-SDIA sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-SDIFJ sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-SDIVR sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-SDI sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-SDIMX sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-CHDAT sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-INREP sy-vline 
WA_PMXSOSA_ALV_OVERVIEW_STR-SEQNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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