ABAP Select data from SAP table CATSHR_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CATSHR_S
*  INTO TABLE @DATA(IT_CATSHR_S2).
*--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_CATSHR_S INDEX 1 INTO DATA(WA_CATSHR_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CATSHR_S>-MANDT = 1.
<CATSHR_S>-COUNTER = 1.
<CATSHR_S>-STOKZ = 1.
<CATSHR_S>-PERNR = 1.
<CATSHR_S>-WORKDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CATSHR_S-SKOSTL, sy-vline,
  WA_CATSHR_S-LSTAR, sy-vline,
  WA_CATSHR_S-SEBELN, sy-vline,
  WA_CATSHR_S-SEBELP, sy-vline,
  WA_CATSHR_S-LSTNR, sy-vline,
  WA_CATSHR_S-RKOSTL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CATSHR_S 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_CATSHR_S 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_CATSHR_S INTO WA_CATSHR_S.


*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 ALPHA, internal->external for field SKOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CATSHR_S-SKOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATSHR_S-SKOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CATSHR_S-SEBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATSHR_S-SEBELN.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field RKOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CATSHR_S-RKOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATSHR_S-RKOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field RPROJEXT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_CATSHR_S-RPROJEXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATSHR_S-RPROJEXT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RAUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CATSHR_S-RAUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATSHR_S-RAUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RNPLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CATSHR_S-RNPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATSHR_S-RNPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CATSHR_S-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATSHR_S-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field UVORN
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CATSHR_S-UVORN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATSHR_S-UVORN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RKDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CATSHR_S-RKDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATSHR_S-RKDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CATSHR_S-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATSHR_S-MEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CATSHR_S-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATSHR_S-LOGSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CATSHR_S-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATSHR_S-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EXTSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CATSHR_S-EXTSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATSHR_S-EXTSYSTEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TASKCOUNTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CATSHR_S-TASKCOUNTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CATSHR_S-TASKCOUNTER.
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_CATSHR_S_STR, 
MANDT TYPE STRING,
COUNTER TYPE STRING,
STOKZ TYPE STRING,
PERNR TYPE STRING,
WORKDATE TYPE STRING,
SKOSTL TYPE STRING,
LSTAR TYPE STRING,
SEBELN TYPE STRING,
SEBELP TYPE STRING,
LSTNR TYPE STRING,
RKOSTL TYPE STRING,
RPROJEXT TYPE STRING,
RAUFNR TYPE STRING,
RNPLNR TYPE STRING,
VORNR TYPE STRING,
UVORN TYPE STRING,
RKDAUF TYPE STRING,
RKDPOS TYPE STRING,
RKSTR TYPE STRING,
AWART TYPE STRING,
LGART TYPE STRING,
REINR TYPE STRING,
VERSL TYPE STRING,
BWGRL TYPE STRING,
WAERS TYPE STRING,
AUFKZ TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
PRAKN TYPE STRING,
PRAKZ TYPE STRING,
OTYPE TYPE STRING,
PLANS TYPE STRING,
KOKRS TYPE STRING,
MEINH TYPE STRING,
TCURR TYPE STRING,
PRICE TYPE STRING,
ARBID TYPE STRING,
WERKS TYPE STRING,
ERSDA TYPE STRING,
ERSTM TYPE STRING,
ERNAM TYPE STRING,
LAEDA TYPE STRING,
LAETM TYPE STRING,
AENAM TYPE STRING,
APNAM TYPE STRING,
APDAT TYPE STRING,
WORKITEMID TYPE STRING,
LOGSYS TYPE STRING,
STATUS TYPE STRING,
REFCOUNTER TYPE STRING,
REASON TYPE STRING,
BELNR TYPE STRING,
EXTSYSTEM TYPE STRING,
EXTAPPLICATION TYPE STRING,
EXTDOCUMENTNO TYPE STRING,
TASKCOUNTER TYPE STRING,
CATSHOURS TYPE STRING,
BEGUZ TYPE STRING,
ENDUZ TYPE STRING,
VTKEN TYPE STRING,
ALLDF TYPE STRING,
LTXA1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CATSHR_S_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_CATSHR_S_STR-MANDT sy-vline 
WA_CATSHR_S_STR-COUNTER sy-vline 
WA_CATSHR_S_STR-STOKZ sy-vline 
WA_CATSHR_S_STR-PERNR sy-vline 
WA_CATSHR_S_STR-WORKDATE sy-vline 
WA_CATSHR_S_STR-SKOSTL sy-vline 
WA_CATSHR_S_STR-LSTAR sy-vline 
WA_CATSHR_S_STR-SEBELN sy-vline 
WA_CATSHR_S_STR-SEBELP sy-vline 
WA_CATSHR_S_STR-LSTNR sy-vline 
WA_CATSHR_S_STR-RKOSTL sy-vline 
WA_CATSHR_S_STR-RPROJEXT sy-vline 
WA_CATSHR_S_STR-RAUFNR sy-vline 
WA_CATSHR_S_STR-RNPLNR sy-vline 
WA_CATSHR_S_STR-VORNR sy-vline 
WA_CATSHR_S_STR-UVORN sy-vline 
WA_CATSHR_S_STR-RKDAUF sy-vline 
WA_CATSHR_S_STR-RKDPOS sy-vline 
WA_CATSHR_S_STR-RKSTR sy-vline 
WA_CATSHR_S_STR-AWART sy-vline 
WA_CATSHR_S_STR-LGART sy-vline 
WA_CATSHR_S_STR-REINR sy-vline 
WA_CATSHR_S_STR-VERSL sy-vline 
WA_CATSHR_S_STR-BWGRL sy-vline 
WA_CATSHR_S_STR-WAERS sy-vline 
WA_CATSHR_S_STR-AUFKZ sy-vline 
WA_CATSHR_S_STR-TRFGR sy-vline 
WA_CATSHR_S_STR-TRFST sy-vline 
WA_CATSHR_S_STR-PRAKN sy-vline 
WA_CATSHR_S_STR-PRAKZ sy-vline 
WA_CATSHR_S_STR-OTYPE sy-vline 
WA_CATSHR_S_STR-PLANS sy-vline 
WA_CATSHR_S_STR-KOKRS sy-vline 
WA_CATSHR_S_STR-MEINH sy-vline 
WA_CATSHR_S_STR-TCURR sy-vline 
WA_CATSHR_S_STR-PRICE sy-vline 
WA_CATSHR_S_STR-ARBID sy-vline 
WA_CATSHR_S_STR-WERKS sy-vline 
WA_CATSHR_S_STR-ERSDA sy-vline 
WA_CATSHR_S_STR-ERSTM sy-vline 
WA_CATSHR_S_STR-ERNAM sy-vline 
WA_CATSHR_S_STR-LAEDA sy-vline 
WA_CATSHR_S_STR-LAETM sy-vline 
WA_CATSHR_S_STR-AENAM sy-vline 
WA_CATSHR_S_STR-APNAM sy-vline 
WA_CATSHR_S_STR-APDAT sy-vline 
WA_CATSHR_S_STR-WORKITEMID sy-vline 
WA_CATSHR_S_STR-LOGSYS sy-vline 
WA_CATSHR_S_STR-STATUS sy-vline 
WA_CATSHR_S_STR-REFCOUNTER sy-vline 
WA_CATSHR_S_STR-REASON sy-vline 
WA_CATSHR_S_STR-BELNR sy-vline 
WA_CATSHR_S_STR-EXTSYSTEM sy-vline 
WA_CATSHR_S_STR-EXTAPPLICATION sy-vline 
WA_CATSHR_S_STR-EXTDOCUMENTNO sy-vline 
WA_CATSHR_S_STR-TASKCOUNTER sy-vline 
WA_CATSHR_S_STR-CATSHOURS sy-vline 
WA_CATSHR_S_STR-BEGUZ sy-vline 
WA_CATSHR_S_STR-ENDUZ sy-vline 
WA_CATSHR_S_STR-VTKEN sy-vline 
WA_CATSHR_S_STR-ALLDF sy-vline 
WA_CATSHR_S_STR-LTXA1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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