ABAP Select data from SAP table PRUAVP0_21 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PRUAVP0_21 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 PRUAVP0_21. 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 PRUAVP0_21 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_PRUAVP0_21 TYPE STANDARD TABLE OF PRUAVP0_21,
      WA_PRUAVP0_21 TYPE PRUAVP0_21,
      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: <PRUAVP0_21> TYPE PRUAVP0_21.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PRUAVP0_21.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PRUAVP0_21
  INTO TABLE IT_PRUAVP0_21.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRUAVP0_21
*  INTO TABLE @DATA(IT_PRUAVP0_212).
*--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_PRUAVP0_21 INDEX 1 INTO DATA(WA_PRUAVP0_212).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PRUAVP0_21 ASSIGNING <PRUAVP0_21>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRUAVP0_21>-STR_010_03 = 1.
<PRUAVP0_21>-STR_010_04 = 1.
<PRUAVP0_21>-STR_010_05 = 1.
<PRUAVP0_21>-STR_010_06 = 1.
<PRUAVP0_21>-STR_010_07 = 1.

ENDLOOP.

LOOP AT IT_PRUAVP0_21 INTO WA_PRUAVP0_21.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRUAVP0_21-STR_010_08, sy-vline,
  WA_PRUAVP0_21-STR_020_03, sy-vline,
  WA_PRUAVP0_21-STR_020_04, sy-vline,
  WA_PRUAVP0_21-STR_020_05, sy-vline,
  WA_PRUAVP0_21-STR_020_06, sy-vline,
  WA_PRUAVP0_21-STR_020_07, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRUAVP0_21 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_PRUAVP0_21 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_PRUAVP0_21 INTO WA_PRUAVP0_21.


*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_PRUAVP0_21_STR, 
STR_010_03 TYPE STRING,
STR_010_04 TYPE STRING,
STR_010_05 TYPE STRING,
STR_010_06 TYPE STRING,
STR_010_07 TYPE STRING,
STR_010_08 TYPE STRING,
STR_020_03 TYPE STRING,
STR_020_04 TYPE STRING,
STR_020_05 TYPE STRING,
STR_020_06 TYPE STRING,
STR_020_07 TYPE STRING,
STR_020_08 TYPE STRING,
STR_021_03 TYPE STRING,
STR_021_04 TYPE STRING,
STR_021_05 TYPE STRING,
STR_021_06 TYPE STRING,
STR_021_07 TYPE STRING,
STR_021_08 TYPE STRING,
STR_022_03 TYPE STRING,
STR_022_04 TYPE STRING,
STR_022_05 TYPE STRING,
STR_022_06 TYPE STRING,
STR_022_07 TYPE STRING,
STR_022_08 TYPE STRING,
STR_030_03 TYPE STRING,
STR_030_04 TYPE STRING,
STR_030_05 TYPE STRING,
STR_030_06 TYPE STRING,
STR_030_07 TYPE STRING,
STR_030_08 TYPE STRING,
STR_031_03 TYPE STRING,
STR_031_04 TYPE STRING,
STR_031_05 TYPE STRING,
STR_031_06 TYPE STRING,
STR_031_07 TYPE STRING,
STR_031_08 TYPE STRING,
STR_032_03 TYPE STRING,
STR_032_04 TYPE STRING,
STR_032_05 TYPE STRING,
STR_032_06 TYPE STRING,
STR_032_07 TYPE STRING,
STR_032_08 TYPE STRING,
STR_040_03 TYPE STRING,
STR_040_04 TYPE STRING,
STR_040_05 TYPE STRING,
STR_040_06 TYPE STRING,
STR_040_07 TYPE STRING,
STR_040_08 TYPE STRING,
STR_041_03 TYPE STRING,
STR_041_04 TYPE STRING,
STR_041_05 TYPE STRING,
STR_041_06 TYPE STRING,
STR_041_07 TYPE STRING,
STR_041_08 TYPE STRING,
STR_042_03 TYPE STRING,
STR_042_04 TYPE STRING,
STR_042_05 TYPE STRING,
STR_042_06 TYPE STRING,
STR_042_07 TYPE STRING,
STR_042_08 TYPE STRING,
STR_050_03 TYPE STRING,
STR_050_04 TYPE STRING,
STR_050_05 TYPE STRING,
STR_050_06 TYPE STRING,
STR_050_07 TYPE STRING,
STR_050_08 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRUAVP0_21_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_PRUAVP0_21_STR-STR_010_03 sy-vline 
WA_PRUAVP0_21_STR-STR_010_04 sy-vline 
WA_PRUAVP0_21_STR-STR_010_05 sy-vline 
WA_PRUAVP0_21_STR-STR_010_06 sy-vline 
WA_PRUAVP0_21_STR-STR_010_07 sy-vline 
WA_PRUAVP0_21_STR-STR_010_08 sy-vline 
WA_PRUAVP0_21_STR-STR_020_03 sy-vline 
WA_PRUAVP0_21_STR-STR_020_04 sy-vline 
WA_PRUAVP0_21_STR-STR_020_05 sy-vline 
WA_PRUAVP0_21_STR-STR_020_06 sy-vline 
WA_PRUAVP0_21_STR-STR_020_07 sy-vline 
WA_PRUAVP0_21_STR-STR_020_08 sy-vline 
WA_PRUAVP0_21_STR-STR_021_03 sy-vline 
WA_PRUAVP0_21_STR-STR_021_04 sy-vline 
WA_PRUAVP0_21_STR-STR_021_05 sy-vline 
WA_PRUAVP0_21_STR-STR_021_06 sy-vline 
WA_PRUAVP0_21_STR-STR_021_07 sy-vline 
WA_PRUAVP0_21_STR-STR_021_08 sy-vline 
WA_PRUAVP0_21_STR-STR_022_03 sy-vline 
WA_PRUAVP0_21_STR-STR_022_04 sy-vline 
WA_PRUAVP0_21_STR-STR_022_05 sy-vline 
WA_PRUAVP0_21_STR-STR_022_06 sy-vline 
WA_PRUAVP0_21_STR-STR_022_07 sy-vline 
WA_PRUAVP0_21_STR-STR_022_08 sy-vline 
WA_PRUAVP0_21_STR-STR_030_03 sy-vline 
WA_PRUAVP0_21_STR-STR_030_04 sy-vline 
WA_PRUAVP0_21_STR-STR_030_05 sy-vline 
WA_PRUAVP0_21_STR-STR_030_06 sy-vline 
WA_PRUAVP0_21_STR-STR_030_07 sy-vline 
WA_PRUAVP0_21_STR-STR_030_08 sy-vline 
WA_PRUAVP0_21_STR-STR_031_03 sy-vline 
WA_PRUAVP0_21_STR-STR_031_04 sy-vline 
WA_PRUAVP0_21_STR-STR_031_05 sy-vline 
WA_PRUAVP0_21_STR-STR_031_06 sy-vline 
WA_PRUAVP0_21_STR-STR_031_07 sy-vline 
WA_PRUAVP0_21_STR-STR_031_08 sy-vline 
WA_PRUAVP0_21_STR-STR_032_03 sy-vline 
WA_PRUAVP0_21_STR-STR_032_04 sy-vline 
WA_PRUAVP0_21_STR-STR_032_05 sy-vline 
WA_PRUAVP0_21_STR-STR_032_06 sy-vline 
WA_PRUAVP0_21_STR-STR_032_07 sy-vline 
WA_PRUAVP0_21_STR-STR_032_08 sy-vline 
WA_PRUAVP0_21_STR-STR_040_03 sy-vline 
WA_PRUAVP0_21_STR-STR_040_04 sy-vline 
WA_PRUAVP0_21_STR-STR_040_05 sy-vline 
WA_PRUAVP0_21_STR-STR_040_06 sy-vline 
WA_PRUAVP0_21_STR-STR_040_07 sy-vline 
WA_PRUAVP0_21_STR-STR_040_08 sy-vline 
WA_PRUAVP0_21_STR-STR_041_03 sy-vline 
WA_PRUAVP0_21_STR-STR_041_04 sy-vline 
WA_PRUAVP0_21_STR-STR_041_05 sy-vline 
WA_PRUAVP0_21_STR-STR_041_06 sy-vline 
WA_PRUAVP0_21_STR-STR_041_07 sy-vline 
WA_PRUAVP0_21_STR-STR_041_08 sy-vline 
WA_PRUAVP0_21_STR-STR_042_03 sy-vline 
WA_PRUAVP0_21_STR-STR_042_04 sy-vline 
WA_PRUAVP0_21_STR-STR_042_05 sy-vline 
WA_PRUAVP0_21_STR-STR_042_06 sy-vline 
WA_PRUAVP0_21_STR-STR_042_07 sy-vline 
WA_PRUAVP0_21_STR-STR_042_08 sy-vline 
WA_PRUAVP0_21_STR-STR_050_03 sy-vline 
WA_PRUAVP0_21_STR-STR_050_04 sy-vline 
WA_PRUAVP0_21_STR-STR_050_05 sy-vline 
WA_PRUAVP0_21_STR-STR_050_06 sy-vline 
WA_PRUAVP0_21_STR-STR_050_07 sy-vline 
WA_PRUAVP0_21_STR-STR_050_08 sy-vline      INTO ld_text SEPARATED BY SPACE.

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