ABAP Select data from SAP table /SAPSLL/CUSWLF_S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPSLL/CUSWLF_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 /SAPSLL/CUSWLF_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 /SAPSLL/CUSWLF_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_/SAPSLL/CUSWLF_S TYPE STANDARD TABLE OF /SAPSLL/CUSWLF_S,
      WA_/SAPSLL/CUSWLF_S TYPE /SAPSLL/CUSWLF_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: </SAPSLL/CUSWLF_S> TYPE /SAPSLL/CUSWLF_S.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPSLL/CUSWLF_S
  INTO TABLE IT_/SAPSLL/CUSWLF_S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPSLL/CUSWLF_S
*  INTO TABLE @DATA(IT_/SAPSLL/CUSWLF_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_/SAPSLL/CUSWLF_S INDEX 1 INTO DATA(WA_/SAPSLL/CUSWLF_S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPSLL/CUSWLF_S ASSIGNING </SAPSLL/CUSWLF_S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPSLL/CUSWLF_S>-MDDNO = 1.
</SAPSLL/CUSWLF_S>-MDDYR = 1.
</SAPSLL/CUSWLF_S>-MDDIN = 1.
</SAPSLL/CUSWLF_S>-MDDSY = 1.
</SAPSLL/CUSWLF_S>-MDDAP = 1.

ENDLOOP.

LOOP AT IT_/SAPSLL/CUSWLF_S INTO WA_/SAPSLL/CUSWLF_S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPSLL/CUSWLF_S-MDOBJ, sy-vline,
  WA_/SAPSLL/CUSWLF_S-MDBUQ_FLT, sy-vline,
  WA_/SAPSLL/CUSWLF_S-BAUOM, sy-vline,
  WA_/SAPSLL/CUSWLF_S-MDCCL, sy-vline,
  WA_/SAPSLL/CUSWLF_S-GUID_PR, sy-vline,
  WA_/SAPSLL/CUSWLF_S-PRVSY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPSLL/CUSWLF_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_/SAPSLL/CUSWLF_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_/SAPSLL/CUSWLF_S INTO WA_/SAPSLL/CUSWLF_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 MDDNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/CUSWLF_S-MDDNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/CUSWLF_S-MDDNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MDDYR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/CUSWLF_S-MDDYR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/CUSWLF_S-MDDYR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit SLLPR, internal->external for field PRVSY
CALL FUNCTION 'CONVERSION_EXIT_SLLPR_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/CUSWLF_S-PRVSY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/CUSWLF_S-PRVSY.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit SLLTS, internal->external for field MDCDT
CALL FUNCTION 'CONVERSION_EXIT_SLLTS_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/CUSWLF_S-MDCDT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/CUSWLF_S-MDCDT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field MDRYR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/CUSWLF_S-MDRYR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/CUSWLF_S-MDRYR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field LOCID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/CUSWLF_S-LOCID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/CUSWLF_S-LOCID.
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_/SAPSLL/CUSWLF_S_STR, 
MDDNO TYPE STRING,
MDDYR TYPE STRING,
MDDIN TYPE STRING,
MDDSY TYPE STRING,
MDDAP TYPE STRING,
MDOBJ TYPE STRING,
MDBUQ_FLT TYPE STRING,
BAUOM TYPE STRING,
MDCCL TYPE STRING,
GUID_PR TYPE STRING,
PRVSY TYPE STRING,
CUCOO TYPE STRING,
ECPID TYPE STRING,
DLDNO TYPE STRING,
DLDIN TYPE STRING,
DLDSY TYPE STRING,
DLDAP TYPE STRING,
DLOBJ TYPE STRING,
MDDDT TYPE STRING,
MDPDT TYPE STRING,
MDCDT TYPE STRING,
MDRNO TYPE STRING,
MDRYR TYPE STRING,
MDRIN TYPE STRING,
MDRSY TYPE STRING,
MDRAP TYPE STRING,
ADDDA1 TYPE STRING,
ADDDA2 TYPE STRING,
ADDDA3 TYPE STRING,
CRTSP TYPE STRING,
IDGDS TYPE STRING,
ENDUSE TYPE STRING,
PARST TYPE STRING,
PAFST TYPE STRING,
TAXNO TYPE STRING,
LOCID TYPE STRING,
GUID_DOC TYPE STRING,
POSID TYPE STRING,
MOVTY TYPE STRING,
ADDDA0 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPSLL/CUSWLF_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_/SAPSLL/CUSWLF_S_STR-MDDNO sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-MDDYR sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-MDDIN sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-MDDSY sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-MDDAP sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-MDOBJ sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-MDBUQ_FLT sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-BAUOM sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-MDCCL sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-GUID_PR sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-PRVSY sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-CUCOO sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-ECPID sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-DLDNO sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-DLDIN sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-DLDSY sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-DLDAP sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-DLOBJ sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-MDDDT sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-MDPDT sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-MDCDT sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-MDRNO sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-MDRYR sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-MDRIN sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-MDRSY sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-MDRAP sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-ADDDA1 sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-ADDDA2 sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-ADDDA3 sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-CRTSP sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-IDGDS sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-ENDUSE sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-PARST sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-PAFST sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-TAXNO sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-LOCID sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-GUID_DOC sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-POSID sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-MOVTY sy-vline 
WA_/SAPSLL/CUSWLF_S_STR-ADDDA0 sy-vline      INTO ld_text SEPARATED BY SPACE.

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