ABAP Select data from SAP table TPDA_BP_PERSISTENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TPDA_BP_PERSISTENT
*  INTO TABLE @DATA(IT_TPDA_BP_PERSISTENT2).
*--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_TPDA_BP_PERSISTENT INDEX 1 INTO DATA(WA_TPDA_BP_PERSISTENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TPDA_BP_PERSISTENT>-FLAGACTIVE = 1.
<TPDA_BP_PERSISTENT>-KIND = 1.
<TPDA_BP_PERSISTENT>-SKIPCNT = 1.
<TPDA_BP_PERSISTENT>-PROGNAMESRC = 1.
<TPDA_BP_PERSISTENT>-INCLNAMESRC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TPDA_BP_PERSISTENT-LINESRC, sy-vline,
  WA_TPDA_BP_PERSISTENT-STATEMENTSTA, sy-vline,
  WA_TPDA_BP_PERSISTENT-PROGNAMEFOR, sy-vline,
  WA_TPDA_BP_PERSISTENT-SUBRNAMEFOR, sy-vline,
  WA_TPDA_BP_PERSISTENT-PROGNAMEMET, sy-vline,
  WA_TPDA_BP_PERSISTENT-CLASSNAMEMET, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TPDA_BP_PERSISTENT 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_TPDA_BP_PERSISTENT 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_TPDA_BP_PERSISTENT INTO WA_TPDA_BP_PERSISTENT.


*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_TPDA_BP_PERSISTENT_STR, 
FLAGACTIVE TYPE STRING,
KIND TYPE STRING,
SKIPCNT TYPE STRING,
PROGNAMESRC TYPE STRING,
INCLNAMESRC TYPE STRING,
LINESRC TYPE STRING,
STATEMENTSTA TYPE STRING,
PROGNAMEFOR TYPE STRING,
SUBRNAMEFOR TYPE STRING,
PROGNAMEMET TYPE STRING,
CLASSNAMEMET TYPE STRING,
METHODNAMEMET TYPE STRING,
METHKINDMET TYPE STRING,
FUNCMNAMEFUN TYPE STRING,
CLASSNAMEEXC TYPE STRING,
DUMMYFIELDSYS TYPE STRING,
DUMMYFIELDNPR TYPE STRING,
DUMMYFIELDINE TYPE STRING,
PROGNAMETEM TYPE STRING,
TEMPLATETEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TPDA_BP_PERSISTENT_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_TPDA_BP_PERSISTENT_STR-FLAGACTIVE sy-vline 
WA_TPDA_BP_PERSISTENT_STR-KIND sy-vline 
WA_TPDA_BP_PERSISTENT_STR-SKIPCNT sy-vline 
WA_TPDA_BP_PERSISTENT_STR-PROGNAMESRC sy-vline 
WA_TPDA_BP_PERSISTENT_STR-INCLNAMESRC sy-vline 
WA_TPDA_BP_PERSISTENT_STR-LINESRC sy-vline 
WA_TPDA_BP_PERSISTENT_STR-STATEMENTSTA sy-vline 
WA_TPDA_BP_PERSISTENT_STR-PROGNAMEFOR sy-vline 
WA_TPDA_BP_PERSISTENT_STR-SUBRNAMEFOR sy-vline 
WA_TPDA_BP_PERSISTENT_STR-PROGNAMEMET sy-vline 
WA_TPDA_BP_PERSISTENT_STR-CLASSNAMEMET sy-vline 
WA_TPDA_BP_PERSISTENT_STR-METHODNAMEMET sy-vline 
WA_TPDA_BP_PERSISTENT_STR-METHKINDMET sy-vline 
WA_TPDA_BP_PERSISTENT_STR-FUNCMNAMEFUN sy-vline 
WA_TPDA_BP_PERSISTENT_STR-CLASSNAMEEXC sy-vline 
WA_TPDA_BP_PERSISTENT_STR-DUMMYFIELDSYS sy-vline 
WA_TPDA_BP_PERSISTENT_STR-DUMMYFIELDNPR sy-vline 
WA_TPDA_BP_PERSISTENT_STR-DUMMYFIELDINE sy-vline 
WA_TPDA_BP_PERSISTENT_STR-PROGNAMETEM sy-vline 
WA_TPDA_BP_PERSISTENT_STR-TEMPLATETEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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