ABAP Select data from SAP table PTM_TMW_NM_LIMITED_ALV_ROW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTM_TMW_NM_LIMITED_ALV_ROW
*  INTO TABLE @DATA(IT_PTM_TMW_NM_LIMITED_ALV_ROW2).
*--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_PTM_TMW_NM_LIMITED_ALV_ROW INDEX 1 INTO DATA(WA_PTM_TMW_NM_LIMITED_ALV_ROW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTM_TMW_NM_LIMITED_ALV_ROW>-FIELD01 = 1.
<PTM_TMW_NM_LIMITED_ALV_ROW>-FIELD02 = 1.
<PTM_TMW_NM_LIMITED_ALV_ROW>-FIELD03 = 1.
<PTM_TMW_NM_LIMITED_ALV_ROW>-FIELD04 = 1.
<PTM_TMW_NM_LIMITED_ALV_ROW>-FIELD05 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTM_TMW_NM_LIMITED_ALV_ROW-FIELD06, sy-vline,
  WA_PTM_TMW_NM_LIMITED_ALV_ROW-FIELD07, sy-vline,
  WA_PTM_TMW_NM_LIMITED_ALV_ROW-FIELD08, sy-vline,
  WA_PTM_TMW_NM_LIMITED_ALV_ROW-FIELD09, sy-vline,
  WA_PTM_TMW_NM_LIMITED_ALV_ROW-FIELD10, sy-vline,
  WA_PTM_TMW_NM_LIMITED_ALV_ROW-FIELD11, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTM_TMW_NM_LIMITED_ALV_ROW 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_PTM_TMW_NM_LIMITED_ALV_ROW 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_PTM_TMW_NM_LIMITED_ALV_ROW INTO WA_PTM_TMW_NM_LIMITED_ALV_ROW.


*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_PTM_TMW_NM_LIMITED_ALV_ROW_STR, 
FIELD01 TYPE STRING,
FIELD02 TYPE STRING,
FIELD03 TYPE STRING,
FIELD04 TYPE STRING,
FIELD05 TYPE STRING,
FIELD06 TYPE STRING,
FIELD07 TYPE STRING,
FIELD08 TYPE STRING,
FIELD09 TYPE STRING,
FIELD10 TYPE STRING,
FIELD11 TYPE STRING,
FIELD12 TYPE STRING,
FIELD13 TYPE STRING,
FIELD14 TYPE STRING,
FIELD15 TYPE STRING,
FIELD16 TYPE STRING,
FIELD17 TYPE STRING,
FIELD18 TYPE STRING,
FIELD19 TYPE STRING,
FIELD20 TYPE STRING,
FIELD21 TYPE STRING,
FIELD22 TYPE STRING,
FIELD23 TYPE STRING,
FIELD24 TYPE STRING,
FIELD25 TYPE STRING,
FIELD26 TYPE STRING,
FIELD27 TYPE STRING,
FIELD28 TYPE STRING,
FIELD29 TYPE STRING,
FIELD30 TYPE STRING,
FIELD31 TYPE STRING,
FIELD32 TYPE STRING,
CELLTAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTM_TMW_NM_LIMITED_ALV_ROW_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_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD01 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD02 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD03 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD04 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD05 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD06 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD07 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD08 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD09 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD10 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD11 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD12 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD13 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD14 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD15 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD16 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD17 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD18 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD19 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD20 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD21 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD22 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD23 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD24 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD25 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD26 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD27 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD28 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD29 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD30 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD31 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-FIELD32 sy-vline 
WA_PTM_TMW_NM_LIMITED_ALV_ROW_STR-CELLTAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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