ABAP Select data from SAP table PGSTA into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PGSTA 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 PGSTA. 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 PGSTA 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_PGSTA TYPE STANDARD TABLE OF PGSTA,
      WA_PGSTA TYPE PGSTA,
      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: <PGSTA> TYPE PGSTA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PGSTA
*  INTO TABLE @DATA(IT_PGSTA2).
*--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_PGSTA INDEX 1 INTO DATA(WA_PGSTA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PGSTA>-MATNR = 1.
<PGSTA>-WERKS = 1.
<PGSTA>-KZSTA = 1.
<PGSTA>-LABST = 1.
<PGSTA>-INSME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PGSTA-SPEME, sy-vline,
  WA_PGSTA-EINME, sy-vline,
  WA_PGSTA-RETME, sy-vline,
  WA_PGSTA-WESPB, sy-vline,
  WA_PGSTA-REBST, sy-vline,
  WA_PGSTA-KLABS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PGSTA 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_PGSTA 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_PGSTA INTO WA_PGSTA.


*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.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PGSTA-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PGSTA-MATNR.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PGSTA_STR, 
MATNR TYPE STRING,
WERKS TYPE STRING,
KZSTA TYPE STRING,
LABST TYPE STRING,
INSME TYPE STRING,
SPEME TYPE STRING,
EINME TYPE STRING,
RETME TYPE STRING,
WESPB TYPE STRING,
REBST TYPE STRING,
KLABS TYPE STRING,
KINSM TYPE STRING,
KEINM TYPE STRING,
KSPEM TYPE STRING,
UMLME TYPE STRING,
KZUMB TYPE STRING,
TRAME TYPE STRING,
SLLAB TYPE STRING,
SLINS TYPE STRING,
EISBE TYPE STRING,
KDBST TYPE STRING,
BEBST TYPE STRING,
BEBSK TYPE STRING,
BANFB TYPE STRING,
PLAFB TYPE STRING,
FEAUB TYPE STRING,
RESBZ TYPE STRING,
UMREB TYPE STRING,
UMABR TYPE STRING,
PRBED TYPE STRING,
VBEDA TYPE STRING,
VBEDB TYPE STRING,
VBEDC TYPE STRING,
VBEDE TYPE STRING,
VBEDG TYPE STRING,
VBEDI TYPE STRING,
VBEDJ TYPE STRING,
SKBED TYPE STRING,
UMREN TYPE STRING,
UMREZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PGSTA_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_PGSTA_STR-MATNR sy-vline 
WA_PGSTA_STR-WERKS sy-vline 
WA_PGSTA_STR-KZSTA sy-vline 
WA_PGSTA_STR-LABST sy-vline 
WA_PGSTA_STR-INSME sy-vline 
WA_PGSTA_STR-SPEME sy-vline 
WA_PGSTA_STR-EINME sy-vline 
WA_PGSTA_STR-RETME sy-vline 
WA_PGSTA_STR-WESPB sy-vline 
WA_PGSTA_STR-REBST sy-vline 
WA_PGSTA_STR-KLABS sy-vline 
WA_PGSTA_STR-KINSM sy-vline 
WA_PGSTA_STR-KEINM sy-vline 
WA_PGSTA_STR-KSPEM sy-vline 
WA_PGSTA_STR-UMLME sy-vline 
WA_PGSTA_STR-KZUMB sy-vline 
WA_PGSTA_STR-TRAME sy-vline 
WA_PGSTA_STR-SLLAB sy-vline 
WA_PGSTA_STR-SLINS sy-vline 
WA_PGSTA_STR-EISBE sy-vline 
WA_PGSTA_STR-KDBST sy-vline 
WA_PGSTA_STR-BEBST sy-vline 
WA_PGSTA_STR-BEBSK sy-vline 
WA_PGSTA_STR-BANFB sy-vline 
WA_PGSTA_STR-PLAFB sy-vline 
WA_PGSTA_STR-FEAUB sy-vline 
WA_PGSTA_STR-RESBZ sy-vline 
WA_PGSTA_STR-UMREB sy-vline 
WA_PGSTA_STR-UMABR sy-vline 
WA_PGSTA_STR-PRBED sy-vline 
WA_PGSTA_STR-VBEDA sy-vline 
WA_PGSTA_STR-VBEDB sy-vline 
WA_PGSTA_STR-VBEDC sy-vline 
WA_PGSTA_STR-VBEDE sy-vline 
WA_PGSTA_STR-VBEDG sy-vline 
WA_PGSTA_STR-VBEDI sy-vline 
WA_PGSTA_STR-VBEDJ sy-vline 
WA_PGSTA_STR-SKBED sy-vline 
WA_PGSTA_STR-UMREN sy-vline 
WA_PGSTA_STR-UMREZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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