ABAP Select data from SAP table SCTS_ATPALOG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SCTS_ATPALOG
*  INTO TABLE @DATA(IT_SCTS_ATPALOG2).
*--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_SCTS_ATPALOG INDEX 1 INTO DATA(WA_SCTS_ATPALOG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SCTS_ATPALOG>-TRTIME = 1.
<SCTS_ATPALOG>-TRKORR = 1.
<SCTS_ATPALOG>-TARSYSTEM = 1.
<SCTS_ATPALOG>-TRCLI = 1.
<SCTS_ATPALOG>-TRSTEP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SCTS_ATPALOG-ALLCLI, sy-vline,
  WA_SCTS_ATPALOG-PROJECT, sy-vline,
  WA_SCTS_ATPALOG-TRUSER, sy-vline,
  WA_SCTS_ATPALOG-RETCODE, sy-vline,
  WA_SCTS_ATPALOG-HOST, sy-vline,
  WA_SCTS_ATPALOG-ADMIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SCTS_ATPALOG 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_SCTS_ATPALOG 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_SCTS_ATPALOG INTO WA_SCTS_ATPALOG.


*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_SCTS_ATPALOG_STR, 
TRTIME TYPE STRING,
TRKORR TYPE STRING,
TARSYSTEM TYPE STRING,
TRCLI TYPE STRING,
TRSTEP TYPE STRING,
ALLCLI TYPE STRING,
PROJECT TYPE STRING,
TRUSER TYPE STRING,
RETCODE TYPE STRING,
HOST TYPE STRING,
ADMIN TYPE STRING,
TPSTAT_KEY TYPE STRING,
LINESEQUENCE TYPE STRING,
HUSER TYPE STRING,
HADMIN TYPE STRING,
SYSTYP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SCTS_ATPALOG_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_SCTS_ATPALOG_STR-TRTIME sy-vline 
WA_SCTS_ATPALOG_STR-TRKORR sy-vline 
WA_SCTS_ATPALOG_STR-TARSYSTEM sy-vline 
WA_SCTS_ATPALOG_STR-TRCLI sy-vline 
WA_SCTS_ATPALOG_STR-TRSTEP sy-vline 
WA_SCTS_ATPALOG_STR-ALLCLI sy-vline 
WA_SCTS_ATPALOG_STR-PROJECT sy-vline 
WA_SCTS_ATPALOG_STR-TRUSER sy-vline 
WA_SCTS_ATPALOG_STR-RETCODE sy-vline 
WA_SCTS_ATPALOG_STR-HOST sy-vline 
WA_SCTS_ATPALOG_STR-ADMIN sy-vline 
WA_SCTS_ATPALOG_STR-TPSTAT_KEY sy-vline 
WA_SCTS_ATPALOG_STR-LINESEQUENCE sy-vline 
WA_SCTS_ATPALOG_STR-HUSER sy-vline 
WA_SCTS_ATPALOG_STR-HADMIN sy-vline 
WA_SCTS_ATPALOG_STR-SYSTYP sy-vline      INTO ld_text SEPARATED BY SPACE.

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