ABAP Select data from SAP table PS9997 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PS9997 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 PS9997. 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 PS9997 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_PS9997 TYPE STANDARD TABLE OF PS9997,
      WA_PS9997 TYPE PS9997,
      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: <PS9997> TYPE PS9997.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PS9997.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PS9997
  INTO TABLE IT_PS9997.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PS9997
*  INTO TABLE @DATA(IT_PS99972).
*--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_PS9997 INDEX 1 INTO DATA(WA_PS99972).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PS9997 ASSIGNING <PS9997>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PS9997>-PY_SEQNR = 1.
<PS9997>-MOLGA = 1.
<PS9997>-ABKRS = 1.
<PS9997>-WAERS = 1.
<PS9997>-FPPER = 1.

ENDLOOP.

LOOP AT IT_PS9997 INTO WA_PS9997.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PS9997-PAYTY, sy-vline,
  WA_PS9997-PAYID, sy-vline,
  WA_PS9997-PAY_DATE, sy-vline,
  WA_PS9997-ZZTEL0164B, sy-vline,
  WA_PS9997-ZZTEL0168B, sy-vline,
  WA_PS9997-ZZTEL0172B, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PS9997 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_PS9997 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_PS9997 INTO WA_PS9997.


*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_PS9997_STR, 
PY_SEQNR TYPE STRING,
MOLGA TYPE STRING,
ABKRS TYPE STRING,
WAERS TYPE STRING,
FPPER TYPE STRING,
PAYTY TYPE STRING,
PAYID TYPE STRING,
PAY_DATE TYPE STRING,
ZZTEL0164B TYPE STRING,
ZZTEL0168B TYPE STRING,
ZZTEL0172B TYPE STRING,
ZZTEL0176B TYPE STRING,
ZZTEL0180B TYPE STRING,
ZZTEL0184B TYPE STRING,
ZZTEL0188B TYPE STRING,
ZZTEL0192B TYPE STRING,
ZZTEL0196B TYPE STRING,
ZZTEL0200B TYPE STRING,
ZZTEL0208B TYPE STRING,
ZZTEL0212B TYPE STRING,
ZZTEL0216B TYPE STRING,
ZZTEL0224B TYPE STRING,
ZZTEL0228B TYPE STRING,
ZZTEL0232B TYPE STRING,
ZZTEL0236B TYPE STRING,
ZZTEL0240B TYPE STRING,
ZZTEL0244B TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PS9997_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_PS9997_STR-PY_SEQNR sy-vline 
WA_PS9997_STR-MOLGA sy-vline 
WA_PS9997_STR-ABKRS sy-vline 
WA_PS9997_STR-WAERS sy-vline 
WA_PS9997_STR-FPPER sy-vline 
WA_PS9997_STR-PAYTY sy-vline 
WA_PS9997_STR-PAYID sy-vline 
WA_PS9997_STR-PAY_DATE sy-vline 
WA_PS9997_STR-ZZTEL0164B sy-vline 
WA_PS9997_STR-ZZTEL0168B sy-vline 
WA_PS9997_STR-ZZTEL0172B sy-vline 
WA_PS9997_STR-ZZTEL0176B sy-vline 
WA_PS9997_STR-ZZTEL0180B sy-vline 
WA_PS9997_STR-ZZTEL0184B sy-vline 
WA_PS9997_STR-ZZTEL0188B sy-vline 
WA_PS9997_STR-ZZTEL0192B sy-vline 
WA_PS9997_STR-ZZTEL0196B sy-vline 
WA_PS9997_STR-ZZTEL0200B sy-vline 
WA_PS9997_STR-ZZTEL0208B sy-vline 
WA_PS9997_STR-ZZTEL0212B sy-vline 
WA_PS9997_STR-ZZTEL0216B sy-vline 
WA_PS9997_STR-ZZTEL0224B sy-vline 
WA_PS9997_STR-ZZTEL0228B sy-vline 
WA_PS9997_STR-ZZTEL0232B sy-vline 
WA_PS9997_STR-ZZTEL0236B sy-vline 
WA_PS9997_STR-ZZTEL0240B sy-vline 
WA_PS9997_STR-ZZTEL0244B sy-vline      INTO ld_text SEPARATED BY SPACE.

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