ABAP Select data from SAP table PSSCS_GE_GED into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSSCS_GE_GED
*  INTO TABLE @DATA(IT_PSSCS_GE_GED2).
*--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_PSSCS_GE_GED INDEX 1 INTO DATA(WA_PSSCS_GE_GED2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSSCS_GE_GED>-OBJECTID = 1.
<PSSCS_GE_GED>-VERSIONID = 1.
<PSSCS_GE_GED>-BEGDA = 1.
<PSSCS_GE_GED>-ENDDA = 1.
<PSSCS_GE_GED>-SXP_VERSIONID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSSCS_GE_GED-SXP_OBJECTID, sy-vline,
  WA_PSSCS_GE_GED-SXP_KIND, sy-vline,
  WA_PSSCS_GE_GED-SXP_TYPE, sy-vline,
  WA_PSSCS_GE_GED-CREATED_AT, sy-vline,
  WA_PSSCS_GE_GED-CHANGE_AT, sy-vline,
  WA_PSSCS_GE_GED-APPL_STATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSSCS_GE_GED 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_PSSCS_GE_GED 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_PSSCS_GE_GED INTO WA_PSSCS_GE_GED.


*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 TSTLC, internal->external for field CREATED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_PSSCS_GE_GED-CREATED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSSCS_GE_GED-CREATED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CHANGE_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_PSSCS_GE_GED-CHANGE_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSSCS_GE_GED-CHANGE_AT.
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_PSSCS_GE_GED_STR, 
OBJECTID TYPE STRING,
VERSIONID TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
SXP_VERSIONID TYPE STRING,
SXP_OBJECTID TYPE STRING,
SXP_KIND TYPE STRING,
SXP_TYPE TYPE STRING,
CREATED_AT TYPE STRING,
CHANGE_AT TYPE STRING,
APPL_STATUS TYPE STRING,
TECH_STATUS TYPE STRING,
TRACE_ID TYPE STRING,
PROCESS_STATUS TYPE STRING,
RR_INDICATOR TYPE STRING,
RR_EXT_KEY TYPE STRING,
MR_DATE_ID TYPE STRING,
MR_IDENT TYPE STRING,
TRACE_ID_RED TYPE STRING,
TRACE TYPE STRING,
TRACE_RED TYPE STRING,
GED_ITEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSSCS_GE_GED_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_PSSCS_GE_GED_STR-OBJECTID sy-vline 
WA_PSSCS_GE_GED_STR-VERSIONID sy-vline 
WA_PSSCS_GE_GED_STR-BEGDA sy-vline 
WA_PSSCS_GE_GED_STR-ENDDA sy-vline 
WA_PSSCS_GE_GED_STR-SXP_VERSIONID sy-vline 
WA_PSSCS_GE_GED_STR-SXP_OBJECTID sy-vline 
WA_PSSCS_GE_GED_STR-SXP_KIND sy-vline 
WA_PSSCS_GE_GED_STR-SXP_TYPE sy-vline 
WA_PSSCS_GE_GED_STR-CREATED_AT sy-vline 
WA_PSSCS_GE_GED_STR-CHANGE_AT sy-vline 
WA_PSSCS_GE_GED_STR-APPL_STATUS sy-vline 
WA_PSSCS_GE_GED_STR-TECH_STATUS sy-vline 
WA_PSSCS_GE_GED_STR-TRACE_ID sy-vline 
WA_PSSCS_GE_GED_STR-PROCESS_STATUS sy-vline 
WA_PSSCS_GE_GED_STR-RR_INDICATOR sy-vline 
WA_PSSCS_GE_GED_STR-RR_EXT_KEY sy-vline 
WA_PSSCS_GE_GED_STR-MR_DATE_ID sy-vline 
WA_PSSCS_GE_GED_STR-MR_IDENT sy-vline 
WA_PSSCS_GE_GED_STR-TRACE_ID_RED sy-vline 
WA_PSSCS_GE_GED_STR-TRACE sy-vline 
WA_PSSCS_GE_GED_STR-TRACE_RED sy-vline 
WA_PSSCS_GE_GED_STR-GED_ITEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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