ABAP Select data from SAP table PS0959 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PS0959 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 PS0959. 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 PS0959 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_PS0959 TYPE STANDARD TABLE OF PS0959,
      WA_PS0959 TYPE PS0959,
      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: <PS0959> TYPE PS0959.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PS0959.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PS0959
  INTO TABLE IT_PS0959.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PS0959
*  INTO TABLE @DATA(IT_PS09592).
*--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_PS0959 INDEX 1 INTO DATA(WA_PS09592).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PS0959 ASSIGNING <PS0959>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PS0959>-MIDNM = 1.
<PS0959>-FAMST = 1.
<PS0959>-FAMDT = 1.
<PS0959>-IRDOA = 1.
<PS0959>-BETR3 = 1.

ENDLOOP.

LOOP AT IT_PS0959 INTO WA_PS0959.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PS0959-WAERS, sy-vline,
  WA_PS0959-LGART, sy-vline,
  WA_PS0959-OPKEN, sy-vline,
  WA_PS0959-DTHDT, sy-vline,
  WA_PS0959-SPWAE, sy-vline,
  WA_PS0959-SPEAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PS0959 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_PS0959 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_PS0959 INTO WA_PS0959.


*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_PS0959_STR, 
MIDNM TYPE STRING,
FAMST TYPE STRING,
FAMDT TYPE STRING,
IRDOA TYPE STRING,
BETR3 TYPE STRING,
WAERS TYPE STRING,
LGART TYPE STRING,
OPKEN TYPE STRING,
DTHDT TYPE STRING,
SPWAE TYPE STRING,
SPEAR TYPE STRING,
EDUAT TYPE STRING,
SPODS TYPE STRING,
FIDEP TYPE STRING,
SPRNR TYPE STRING,
SERTY TYPE STRING,
SERUN TYPE STRING,
SERTX TYPE STRING,
NCCHL TYPE STRING,
TRANS_IND TYPE STRING,
TRANS_DATE TYPE STRING,
FSAMT TYPE STRING,
FSWAER TYPE STRING,
ARRIVAL_DATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PS0959_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_PS0959_STR-MIDNM sy-vline 
WA_PS0959_STR-FAMST sy-vline 
WA_PS0959_STR-FAMDT sy-vline 
WA_PS0959_STR-IRDOA sy-vline 
WA_PS0959_STR-BETR3 sy-vline 
WA_PS0959_STR-WAERS sy-vline 
WA_PS0959_STR-LGART sy-vline 
WA_PS0959_STR-OPKEN sy-vline 
WA_PS0959_STR-DTHDT sy-vline 
WA_PS0959_STR-SPWAE sy-vline 
WA_PS0959_STR-SPEAR sy-vline 
WA_PS0959_STR-EDUAT sy-vline 
WA_PS0959_STR-SPODS sy-vline 
WA_PS0959_STR-FIDEP sy-vline 
WA_PS0959_STR-SPRNR sy-vline 
WA_PS0959_STR-SERTY sy-vline 
WA_PS0959_STR-SERUN sy-vline 
WA_PS0959_STR-SERTX sy-vline 
WA_PS0959_STR-NCCHL sy-vline 
WA_PS0959_STR-TRANS_IND sy-vline 
WA_PS0959_STR-TRANS_DATE sy-vline 
WA_PS0959_STR-FSAMT sy-vline 
WA_PS0959_STR-FSWAER sy-vline 
WA_PS0959_STR-ARRIVAL_DATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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