ABAP Select data from SAP table CAS01 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP CAS01 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 CAS01. 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 CAS01 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_CAS01 TYPE STANDARD TABLE OF CAS01,
      WA_CAS01 TYPE CAS01,
      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: <CAS01> TYPE CAS01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CAS01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CAS01
  INTO TABLE IT_CAS01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CAS01
*  INTO TABLE @DATA(IT_CAS012).
*--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_CAS01 INDEX 1 INTO DATA(WA_CAS012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CAS01 ASSIGNING <CAS01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CAS01>-SORTKEY = 1.
<CAS01>-SORTPARVW = 1.
<CAS01>-SORTNUMMER = 1.
<CAS01>-BLKNR = 1.
<CAS01>-ALAND = 1.

ENDLOOP.

LOOP AT IT_CAS01 INTO WA_CAS01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CAS01-PARGE, sy-vline,
  WA_CAS01-ADRTYPE, sy-vline,
  WA_CAS01-UPDKZ, sy-vline,
  WA_CAS01-SELKZ, sy-vline,
  WA_CAS01-PARNR, sy-vline,
  WA_CAS01-KUNNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CAS01 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_CAS01 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_CAS01 INTO WA_CAS01.


*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 PARVW, internal->external for field SORTPARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_CAS01-SORTPARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAS01-SORTPARVW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SORTNUMMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CAS01-SORTNUMMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAS01-SORTNUMMER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CAS01-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAS01-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CAS01-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAS01-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CAS01-KUNN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAS01-KUNN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CAS01-ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAS01-ADRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CAS01-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAS01-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COUNTY_CODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CAS01-COUNTY_CODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAS01-COUNTY_CODE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TOWNSHIP_CODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CAS01-TOWNSHIP_CODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAS01-TOWNSHIP_CODE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADRNP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CAS01-ADRNP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAS01-ADRNP.
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_CAS01_STR, 
SORTKEY TYPE STRING,
SORTPARVW TYPE STRING,
SORTNUMMER TYPE STRING,
BLKNR TYPE STRING,
ALAND TYPE STRING,
PARGE TYPE STRING,
ADRTYPE TYPE STRING,
UPDKZ TYPE STRING,
SELKZ TYPE STRING,
PARNR TYPE STRING,
KUNNR TYPE STRING,
PERNR TYPE STRING,
LIFNR TYPE STRING,
KUNN2 TYPE STRING,
ANRED_AP TYPE STRING,
NAMEV_AP TYPE STRING,
NAME1_AP TYPE STRING,
SPNAM_AP TYPE STRING,
TITEL_AP TYPE STRING,
MANDT TYPE STRING,
ADRNR TYPE STRING,
NATIO TYPE STRING,
ANRED TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
NAME4 TYPE STRING,
PSTLZ TYPE STRING,
ORT01 TYPE STRING,
ORT02 TYPE STRING,
PSTL2 TYPE STRING,
PFACH TYPE STRING,
STRAS TYPE STRING,
STRS2 TYPE STRING,
HAUSN TYPE STRING,
STOCK TYPE STRING,
LAND1 TYPE STRING,
SORTL TYPE STRING,
SORT2 TYPE STRING,
SPRAS TYPE STRING,
LZONE TYPE STRING,
REGIO TYPE STRING,
PSTBZ TYPE STRING,
TELF1 TYPE STRING,
FLAG TYPE STRING,
TELFX TYPE STRING,
FLAG2 TYPE STRING,
TELTX TYPE STRING,
FLAG3 TYPE STRING,
TELX1 TYPE STRING,
FLAG4 TYPE STRING,
MAIAD TYPE STRING,
MAILN TYPE STRING,
STDKO TYPE STRING,
STDCOM TYPE STRING,
DBNAME TYPE STRING,
KLASSE TYPE STRING,
ANREK TYPE STRING,
CRNAM TYPE STRING,
CRDAT TYPE STRING,
CRTIM TYPE STRING,
CHNAM TYPE STRING,
CHDAT TYPE STRING,
CHTIM TYPE STRING,
DUEFL TYPE STRING,
TXJCD TYPE STRING,
PFORT TYPE STRING,
TZONE TYPE STRING,
COUNTY_CODE TYPE STRING,
COUNTY TYPE STRING,
TOWNSHIP_CODE TYPE STRING,
TOWNSHIP TYPE STRING,
ADRNP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CAS01_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_CAS01_STR-SORTKEY sy-vline 
WA_CAS01_STR-SORTPARVW sy-vline 
WA_CAS01_STR-SORTNUMMER sy-vline 
WA_CAS01_STR-BLKNR sy-vline 
WA_CAS01_STR-ALAND sy-vline 
WA_CAS01_STR-PARGE sy-vline 
WA_CAS01_STR-ADRTYPE sy-vline 
WA_CAS01_STR-UPDKZ sy-vline 
WA_CAS01_STR-SELKZ sy-vline 
WA_CAS01_STR-PARNR sy-vline 
WA_CAS01_STR-KUNNR sy-vline 
WA_CAS01_STR-PERNR sy-vline 
WA_CAS01_STR-LIFNR sy-vline 
WA_CAS01_STR-KUNN2 sy-vline 
WA_CAS01_STR-ANRED_AP sy-vline 
WA_CAS01_STR-NAMEV_AP sy-vline 
WA_CAS01_STR-NAME1_AP sy-vline 
WA_CAS01_STR-SPNAM_AP sy-vline 
WA_CAS01_STR-TITEL_AP sy-vline 
WA_CAS01_STR-MANDT sy-vline 
WA_CAS01_STR-ADRNR sy-vline 
WA_CAS01_STR-NATIO sy-vline 
WA_CAS01_STR-ANRED sy-vline 
WA_CAS01_STR-NAME1 sy-vline 
WA_CAS01_STR-NAME2 sy-vline 
WA_CAS01_STR-NAME3 sy-vline 
WA_CAS01_STR-NAME4 sy-vline 
WA_CAS01_STR-PSTLZ sy-vline 
WA_CAS01_STR-ORT01 sy-vline 
WA_CAS01_STR-ORT02 sy-vline 
WA_CAS01_STR-PSTL2 sy-vline 
WA_CAS01_STR-PFACH sy-vline 
WA_CAS01_STR-STRAS sy-vline 
WA_CAS01_STR-STRS2 sy-vline 
WA_CAS01_STR-HAUSN sy-vline 
WA_CAS01_STR-STOCK sy-vline 
WA_CAS01_STR-LAND1 sy-vline 
WA_CAS01_STR-SORTL sy-vline 
WA_CAS01_STR-SORT2 sy-vline 
WA_CAS01_STR-SPRAS sy-vline 
WA_CAS01_STR-LZONE sy-vline 
WA_CAS01_STR-REGIO sy-vline 
WA_CAS01_STR-PSTBZ sy-vline 
WA_CAS01_STR-TELF1 sy-vline 
WA_CAS01_STR-FLAG sy-vline 
WA_CAS01_STR-TELFX sy-vline 
WA_CAS01_STR-FLAG2 sy-vline 
WA_CAS01_STR-TELTX sy-vline 
WA_CAS01_STR-FLAG3 sy-vline 
WA_CAS01_STR-TELX1 sy-vline 
WA_CAS01_STR-FLAG4 sy-vline 
WA_CAS01_STR-MAIAD sy-vline 
WA_CAS01_STR-MAILN sy-vline 
WA_CAS01_STR-STDKO sy-vline 
WA_CAS01_STR-STDCOM sy-vline 
WA_CAS01_STR-DBNAME sy-vline 
WA_CAS01_STR-KLASSE sy-vline 
WA_CAS01_STR-ANREK sy-vline 
WA_CAS01_STR-CRNAM sy-vline 
WA_CAS01_STR-CRDAT sy-vline 
WA_CAS01_STR-CRTIM sy-vline 
WA_CAS01_STR-CHNAM sy-vline 
WA_CAS01_STR-CHDAT sy-vline 
WA_CAS01_STR-CHTIM sy-vline 
WA_CAS01_STR-DUEFL sy-vline 
WA_CAS01_STR-TXJCD sy-vline 
WA_CAS01_STR-PFORT sy-vline 
WA_CAS01_STR-TZONE sy-vline 
WA_CAS01_STR-COUNTY_CODE sy-vline 
WA_CAS01_STR-COUNTY sy-vline 
WA_CAS01_STR-TOWNSHIP_CODE sy-vline 
WA_CAS01_STR-TOWNSHIP sy-vline 
WA_CAS01_STR-ADRNP sy-vline      INTO ld_text SEPARATED BY SPACE.

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