ABAP Select data from SAP table CSLA_EX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSLA_EX
*  INTO TABLE @DATA(IT_CSLA_EX2).
*--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_CSLA_EX INDEX 1 INTO DATA(WA_CSLA_EX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSLA_EX>-MANDT = 1.
<CSLA_EX>-KOKRS = 1.
<CSLA_EX>-LSTAR = 1.
<CSLA_EX>-DATBI = 1.
<CSLA_EX>-DATAB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSLA_EX-KTEXT, sy-vline,
  WA_CSLA_EX-LTEXT, sy-vline,
  WA_CSLA_EX-ERSDA, sy-vline,
  WA_CSLA_EX-USNAM, sy-vline,
  WA_CSLA_EX-SPRKZ, sy-vline,
  WA_CSLA_EX-LEINH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSLA_EX 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_CSLA_EX 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_CSLA_EX INTO WA_CSLA_EX.


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

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

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

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

*Conversion exit ALPHA, internal->external for field TARKZ_I
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSLA_EX-TARKZ_I
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSLA_EX-TARKZ_I.
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_CSLA_EX_STR, 
MANDT TYPE STRING,
KOKRS TYPE STRING,
LSTAR TYPE STRING,
DATBI TYPE STRING,
DATAB TYPE STRING,
KTEXT TYPE STRING,
LTEXT TYPE STRING,
ERSDA TYPE STRING,
USNAM TYPE STRING,
SPRKZ TYPE STRING,
LEINH TYPE STRING,
KSTTY TYPE STRING,
AUSEH TYPE STRING,
AUSFK TYPE STRING,
VKSTA TYPE STRING,
LATYP TYPE STRING,
LATYPI TYPE STRING,
TARKZ TYPE STRING,
TARKZ_I TYPE STRING,
YRATE TYPE STRING,
FIXVO TYPE STRING,
MANIST TYPE STRING,
MANPLAN TYPE STRING,
MCTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSLA_EX_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_CSLA_EX_STR-MANDT sy-vline 
WA_CSLA_EX_STR-KOKRS sy-vline 
WA_CSLA_EX_STR-LSTAR sy-vline 
WA_CSLA_EX_STR-DATBI sy-vline 
WA_CSLA_EX_STR-DATAB sy-vline 
WA_CSLA_EX_STR-KTEXT sy-vline 
WA_CSLA_EX_STR-LTEXT sy-vline 
WA_CSLA_EX_STR-ERSDA sy-vline 
WA_CSLA_EX_STR-USNAM sy-vline 
WA_CSLA_EX_STR-SPRKZ sy-vline 
WA_CSLA_EX_STR-LEINH sy-vline 
WA_CSLA_EX_STR-KSTTY sy-vline 
WA_CSLA_EX_STR-AUSEH sy-vline 
WA_CSLA_EX_STR-AUSFK sy-vline 
WA_CSLA_EX_STR-VKSTA sy-vline 
WA_CSLA_EX_STR-LATYP sy-vline 
WA_CSLA_EX_STR-LATYPI sy-vline 
WA_CSLA_EX_STR-TARKZ sy-vline 
WA_CSLA_EX_STR-TARKZ_I sy-vline 
WA_CSLA_EX_STR-YRATE sy-vline 
WA_CSLA_EX_STR-FIXVO sy-vline 
WA_CSLA_EX_STR-MANIST sy-vline 
WA_CSLA_EX_STR-MANPLAN sy-vline 
WA_CSLA_EX_STR-MCTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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