ABAP Select data from SAP table /SAPSLL/CUSWLO_DS_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/CUSWLO_DS_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/CUSWLO_DS_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/CUSWLO_DS_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/CUSWLO_DS_S TYPE STANDARD TABLE OF /SAPSLL/CUSWLO_DS_S,
      WA_/SAPSLL/CUSWLO_DS_S TYPE /SAPSLL/CUSWLO_DS_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/CUSWLO_DS_S> TYPE /SAPSLL/CUSWLO_DS_S.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPSLL/CUSWLO_DS_S
*  INTO TABLE @DATA(IT_/SAPSLL/CUSWLO_DS_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/CUSWLO_DS_S INDEX 1 INTO DATA(WA_/SAPSLL/CUSWLO_DS_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPSLL/CUSWLO_DS_S>-MOVTY = 1.
</SAPSLL/CUSWLO_DS_S>-MDDPM = 1.
</SAPSLL/CUSWLO_DS_S>-MDCCL = 1.
</SAPSLL/CUSWLO_DS_S>-TEMST = 1.
</SAPSLL/CUSWLO_DS_S>-ECPID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPSLL/CUSWLO_DS_S-IDGDS, sy-vline,
  WA_/SAPSLL/CUSWLO_DS_S-PRVSY, sy-vline,
  WA_/SAPSLL/CUSWLO_DS_S-MDWGR_FLT, sy-vline,
  WA_/SAPSLL/CUSWLO_DS_S-MDWNT_FLT, sy-vline,
  WA_/SAPSLL/CUSWLO_DS_S-MDWEI, sy-vline,
  WA_/SAPSLL/CUSWLO_DS_S-DLDNO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPSLL/CUSWLO_DS_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/CUSWLO_DS_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/CUSWLO_DS_S INTO WA_/SAPSLL/CUSWLO_DS_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 SLLPR, internal->external for field PRVSY
CALL FUNCTION 'CONVERSION_EXIT_SLLPR_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/CUSWLO_DS_S-PRVSY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/CUSWLO_DS_S-PRVSY.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field PAFGS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/CUSWLO_DS_S-PAFGS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/CUSWLO_DS_S-PAFGS.
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/CUSWLO_DS_S_STR, 
MOVTY TYPE STRING,
MDDPM TYPE STRING,
MDCCL TYPE STRING,
TEMST TYPE STRING,
ECPID TYPE STRING,
IDGDS TYPE STRING,
PRVSY TYPE STRING,
MDWGR_FLT TYPE STRING,
MDWNT_FLT TYPE STRING,
MDWEI TYPE STRING,
DLDNO TYPE STRING,
DLDIN TYPE STRING,
DLDSY TYPE STRING,
DLDAP TYPE STRING,
DLOBJ TYPE STRING,
PAFVD TYPE STRING,
PAFGS TYPE STRING,
INCOT TYPE STRING,
CUCOO TYPE STRING,
POVAL_FLT TYPE STRING,
POPRC_FLT TYPE STRING,
POCUR TYPE STRING,
ADDDA1 TYPE STRING,
ADDDA2 TYPE STRING,
ADDDA3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPSLL/CUSWLO_DS_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/CUSWLO_DS_S_STR-MOVTY sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-MDDPM sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-MDCCL sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-TEMST sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-ECPID sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-IDGDS sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-PRVSY sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-MDWGR_FLT sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-MDWNT_FLT sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-MDWEI sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-DLDNO sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-DLDIN sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-DLDSY sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-DLDAP sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-DLOBJ sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-PAFVD sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-PAFGS sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-INCOT sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-CUCOO sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-POVAL_FLT sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-POPRC_FLT sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-POCUR sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-ADDDA1 sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-ADDDA2 sy-vline 
WA_/SAPSLL/CUSWLO_DS_S_STR-ADDDA3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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