ABAP Select data from SAP table PSG02 into internal table

Get Example source ABAP code based on a different SAP table
  

Below is a number of ABAP code snippets to demonstrate how to select data from SAP PSG02 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 PSG02. 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 PSG02 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_PSG02 TYPE STANDARD TABLE OF PSG02,
      WA_PSG02 TYPE PSG02,
      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: <PSG02> TYPE PSG02.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PSG02.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PSG02
  INTO TABLE IT_PSG02.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSG02
*  INTO TABLE @DATA(IT_PSG022).
*--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_PSG02 INDEX 1 INTO DATA(WA_PSG022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PSG02 ASSIGNING <PSG02>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSG02>-SCHEM = 1.
<PSG02>-DIVIS = 1.
<PSG02>-QTTYP = 1.
<PSG02>-CUTYR = 1.
<PSG02>-SALGP = 1.
ENDLOOP.

LOOP AT IT_PSG02 INTO WA_PSG02.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSG02-MOPGK, sy-vline,
WA_PSG02-MOZKO, sy-vline,
WA_PSG02-BUKRS, sy-vline,
WA_PSG02-WERKS, sy-vline,
WA_PSG02-BTRTL, sy-vline,
WA_PSG02-PERSG, sy-vline.
ENDLOOP. *Add any further fields from structure WA_PSG02 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_PSG02 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_PSG02 INTO WA_PSG02. *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_PSG02_STR,
SCHEM TYPE STRING,
DIVIS TYPE STRING,
QTTYP TYPE STRING,
CUTYR TYPE STRING,
SALGP TYPE STRING,
MOPGK TYPE STRING,
MOZKO TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
MOLGA TYPE STRING,
MOURA TYPE STRING,
URART TYPE STRING,
SBGRU TYPE STRING,
SBPRO TYPE STRING,
AGEJJ TYPE STRING,
DAUER TYPE STRING,
TRFAR TYPE STRING,
TRFGB TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
SCHKZ TYPE STRING,
URLZK TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
PERNR TYPE STRING,
ELIGB TYPE STRING,
AMUNT TYPE STRING,
ENTIT TYPE STRING,
AWRKH TYPE STRING,
AWRKD TYPE STRING,
YWRKH TYPE STRING,
YWRKD TYPE STRING,
CTYPE TYPE STRING,END OF T_EKKO_STR. DATA: WA_PSG02_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_PSG02_STR-SCHEM sy-vline
WA_PSG02_STR-DIVIS sy-vline
WA_PSG02_STR-QTTYP sy-vline
WA_PSG02_STR-CUTYR sy-vline
WA_PSG02_STR-SALGP sy-vline
WA_PSG02_STR-MOPGK sy-vline
WA_PSG02_STR-MOZKO sy-vline
WA_PSG02_STR-BUKRS sy-vline
WA_PSG02_STR-WERKS sy-vline
WA_PSG02_STR-BTRTL sy-vline
WA_PSG02_STR-PERSG sy-vline
WA_PSG02_STR-PERSK sy-vline
WA_PSG02_STR-MOLGA sy-vline
WA_PSG02_STR-MOURA sy-vline
WA_PSG02_STR-URART sy-vline
WA_PSG02_STR-SBGRU sy-vline
WA_PSG02_STR-SBPRO sy-vline
WA_PSG02_STR-AGEJJ sy-vline
WA_PSG02_STR-DAUER sy-vline
WA_PSG02_STR-TRFAR sy-vline
WA_PSG02_STR-TRFGB sy-vline
WA_PSG02_STR-TRFGR sy-vline
WA_PSG02_STR-TRFST sy-vline
WA_PSG02_STR-SCHKZ sy-vline
WA_PSG02_STR-URLZK sy-vline
WA_PSG02_STR-BEGDA sy-vline
WA_PSG02_STR-ENDDA sy-vline
WA_PSG02_STR-PERNR sy-vline
WA_PSG02_STR-ELIGB sy-vline
WA_PSG02_STR-AMUNT sy-vline
WA_PSG02_STR-ENTIT sy-vline
WA_PSG02_STR-AWRKH sy-vline
WA_PSG02_STR-AWRKD sy-vline
WA_PSG02_STR-YWRKH sy-vline
WA_PSG02_STR-YWRKD sy-vline
WA_PSG02_STR-CTYPE sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.