ABAP Select data from SAP table CATS_SSC_S_DEP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CATS_SSC_S_DEP
*  INTO TABLE @DATA(IT_CATS_SSC_S_DEP2).
*--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_CATS_SSC_S_DEP INDEX 1 INTO DATA(WA_CATS_SSC_S_DEP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CATS_SSC_S_DEP>-MANDT = 1.
<CATS_SSC_S_DEP>-VARIANT = 1.
<CATS_SSC_S_DEP>-MISSINGTIME = 1.
<CATS_SSC_S_DEP>-EXTMODE = 1.
<CATS_SSC_S_DEP>-RKOSTL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CATS_SSC_S_DEP-LSTAR, sy-vline,
  WA_CATS_SSC_S_DEP-RAUFNR, sy-vline,
  WA_CATS_SSC_S_DEP-RPROJ, sy-vline,
  WA_CATS_SSC_S_DEP-MINTIMESLOT, sy-vline,
  WA_CATS_SSC_S_DEP-TIMESLOTINTERVAL, sy-vline,
  WA_CATS_SSC_S_DEP-WRKLOC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CATS_SSC_S_DEP 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_CATS_SSC_S_DEP 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_CATS_SSC_S_DEP INTO WA_CATS_SSC_S_DEP.


*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_CATS_SSC_S_DEP_STR, 
MANDT TYPE STRING,
VARIANT TYPE STRING,
MISSINGTIME TYPE STRING,
EXTMODE TYPE STRING,
RKOSTL TYPE STRING,
LSTAR TYPE STRING,
RAUFNR TYPE STRING,
RPROJ TYPE STRING,
MINTIMESLOT TYPE STRING,
TIMESLOTINTERVAL TYPE STRING,
WRKLOC TYPE STRING,
UNSTAFFEDPROJ TYPE STRING,
OVERTIME TYPE STRING,
TEXT TYPE STRING,
APPROVAL TYPE STRING,
NOCHANGE TYPE STRING,
FREEATSAVE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CATS_SSC_S_DEP_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_CATS_SSC_S_DEP_STR-MANDT sy-vline 
WA_CATS_SSC_S_DEP_STR-VARIANT sy-vline 
WA_CATS_SSC_S_DEP_STR-MISSINGTIME sy-vline 
WA_CATS_SSC_S_DEP_STR-EXTMODE sy-vline 
WA_CATS_SSC_S_DEP_STR-RKOSTL sy-vline 
WA_CATS_SSC_S_DEP_STR-LSTAR sy-vline 
WA_CATS_SSC_S_DEP_STR-RAUFNR sy-vline 
WA_CATS_SSC_S_DEP_STR-RPROJ sy-vline 
WA_CATS_SSC_S_DEP_STR-MINTIMESLOT sy-vline 
WA_CATS_SSC_S_DEP_STR-TIMESLOTINTERVAL sy-vline 
WA_CATS_SSC_S_DEP_STR-WRKLOC sy-vline 
WA_CATS_SSC_S_DEP_STR-UNSTAFFEDPROJ sy-vline 
WA_CATS_SSC_S_DEP_STR-OVERTIME sy-vline 
WA_CATS_SSC_S_DEP_STR-TEXT sy-vline 
WA_CATS_SSC_S_DEP_STR-APPROVAL sy-vline 
WA_CATS_SSC_S_DEP_STR-NOCHANGE sy-vline 
WA_CATS_SSC_S_DEP_STR-FREEATSAVE sy-vline      INTO ld_text SEPARATED BY SPACE.

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