ABAP Select data from SAP table PRUDATATAB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRUDATATAB
*  INTO TABLE @DATA(IT_PRUDATATAB2).
*--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_PRUDATATAB INDEX 1 INTO DATA(WA_PRUDATATAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRUDATATAB>-LANGTEXT1 = 1.
<PRUDATATAB>-LANGTEXT2 = 1.
<PRUDATATAB>-LANGTEXT3 = 1.
<PRUDATATAB>-LANGTEXT4 = 1.
<PRUDATATAB>-LANGTEXT5 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRUDATATAB-LANGTEXT6, sy-vline,
  WA_PRUDATATAB-LANGTEXT7, sy-vline,
  WA_PRUDATATAB-LANGTEXT8, sy-vline,
  WA_PRUDATATAB-LANGTEXT9, sy-vline,
  WA_PRUDATATAB-LANGTEXT10, sy-vline,
  WA_PRUDATATAB-LANGTEXT11, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRUDATATAB 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_PRUDATATAB 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_PRUDATATAB INTO WA_PRUDATATAB.


*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_PRUDATATAB_STR, 
LANGTEXT1 TYPE STRING,
LANGTEXT2 TYPE STRING,
LANGTEXT3 TYPE STRING,
LANGTEXT4 TYPE STRING,
LANGTEXT5 TYPE STRING,
LANGTEXT6 TYPE STRING,
LANGTEXT7 TYPE STRING,
LANGTEXT8 TYPE STRING,
LANGTEXT9 TYPE STRING,
LANGTEXT10 TYPE STRING,
LANGTEXT11 TYPE STRING,
LANGTEXT12 TYPE STRING,
LANGTEXT13 TYPE STRING,
LANGTEXT14 TYPE STRING,
LANGTEXT15 TYPE STRING,
LANGTEXT16 TYPE STRING,
LANGTEXT17 TYPE STRING,
LANGTEXT18 TYPE STRING,
LANGTEXT19 TYPE STRING,
LANGTEXT20 TYPE STRING,
LANGTEXT21 TYPE STRING,
LANGTEXT22 TYPE STRING,
LANGTEXT23 TYPE STRING,
LANGTEXT24 TYPE STRING,
LANGTEXT25 TYPE STRING,
LANGTEXT26 TYPE STRING,
LANGTEXT28 TYPE STRING,
LANGTEXT29 TYPE STRING,
LANGTEXT30 TYPE STRING,
LANGTEXT31 TYPE STRING,
LANGTEXT32 TYPE STRING,
LANGTEXT33 TYPE STRING,
LANGTEXT34 TYPE STRING,
LANGTEXT35 TYPE STRING,
LANGTEXT36 TYPE STRING,
LANGTEXT37 TYPE STRING,
LANGTEXT38 TYPE STRING,
LANGTEXT39 TYPE STRING,
LANGTEXT40 TYPE STRING,
TOTAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRUDATATAB_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_PRUDATATAB_STR-LANGTEXT1 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT2 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT3 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT4 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT5 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT6 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT7 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT8 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT9 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT10 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT11 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT12 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT13 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT14 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT15 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT16 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT17 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT18 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT19 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT20 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT21 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT22 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT23 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT24 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT25 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT26 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT28 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT29 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT30 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT31 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT32 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT33 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT34 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT35 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT36 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT37 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT38 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT39 sy-vline 
WA_PRUDATATAB_STR-LANGTEXT40 sy-vline 
WA_PRUDATATAB_STR-TOTAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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