ABAP Select data from SAP table CSLA1 into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CSLA1 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 CSLA1. 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 CSLA1 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_CSLA1 TYPE STANDARD TABLE OF CSLA1,
      WA_CSLA1 TYPE CSLA1,
      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: <CSLA1> TYPE CSLA1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CSLA1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CSLA1
  INTO TABLE IT_CSLA1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSLA1
*  INTO TABLE @DATA(IT_CSLA12).
*--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_CSLA1 INDEX 1 INTO DATA(WA_CSLA12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CSLA1 ASSIGNING <CSLA1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSLA1>-MANDT = 1.
<CSLA1>-KOKRS = 1.
<CSLA1>-LSTAR = 1.
<CSLA1>-DATBI = 1.
<CSLA1>-DATAB = 1.

ENDLOOP.

LOOP AT IT_CSLA1 INTO WA_CSLA1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSLA1-ERSDA, sy-vline,
  WA_CSLA1-USNAM, sy-vline,
  WA_CSLA1-LEINH, sy-vline,
  WA_CSLA1-KSTTY, sy-vline,
  WA_CSLA1-AUSEH, sy-vline,
  WA_CSLA1-AUSFK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSLA1 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_CSLA1 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_CSLA1 INTO WA_CSLA1.


*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 VKSTA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSLA1-VKSTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSLA1-VKSTA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TARKZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSLA1-TARKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSLA1-TARKZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TARKZ_I
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSLA1-TARKZ_I
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSLA1-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_CSLA1_STR, 
MANDT TYPE STRING,
KOKRS TYPE STRING,
LSTAR TYPE STRING,
DATBI TYPE STRING,
DATAB TYPE STRING,
ERSDA TYPE STRING,
USNAM TYPE STRING,
LEINH TYPE STRING,
KSTTY TYPE STRING,
AUSEH TYPE STRING,
AUSFK TYPE STRING,
VKSTA TYPE STRING,
LATYP TYPE STRING,
LARK1 TYPE STRING,
LARK2 TYPE STRING,
SPRKZ TYPE STRING,
HRKFT TYPE STRING,
FIXVO TYPE STRING,
TARKZ TYPE STRING,
YRATE TYPE STRING,
TARKZ_I TYPE STRING,
LATYPI TYPE STRING,
REKRS TYPE STRING,
RLSTA TYPE STRING,
KTEXT TYPE STRING,
LTEXT TYPE STRING,
TTEXT TYPE STRING,
TTEXTI TYPE STRING,
KATXT TYPE STRING,
TARTEXT TYPE STRING,
TARTEXTI TYPE STRING,
ALOCFL TYPE STRING,
NOALOC TYPE STRING,
LEINH_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSLA1_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_CSLA1_STR-MANDT sy-vline 
WA_CSLA1_STR-KOKRS sy-vline 
WA_CSLA1_STR-LSTAR sy-vline 
WA_CSLA1_STR-DATBI sy-vline 
WA_CSLA1_STR-DATAB sy-vline 
WA_CSLA1_STR-ERSDA sy-vline 
WA_CSLA1_STR-USNAM sy-vline 
WA_CSLA1_STR-LEINH sy-vline 
WA_CSLA1_STR-KSTTY sy-vline 
WA_CSLA1_STR-AUSEH sy-vline 
WA_CSLA1_STR-AUSFK sy-vline 
WA_CSLA1_STR-VKSTA sy-vline 
WA_CSLA1_STR-LATYP sy-vline 
WA_CSLA1_STR-LARK1 sy-vline 
WA_CSLA1_STR-LARK2 sy-vline 
WA_CSLA1_STR-SPRKZ sy-vline 
WA_CSLA1_STR-HRKFT sy-vline 
WA_CSLA1_STR-FIXVO sy-vline 
WA_CSLA1_STR-TARKZ sy-vline 
WA_CSLA1_STR-YRATE sy-vline 
WA_CSLA1_STR-TARKZ_I sy-vline 
WA_CSLA1_STR-LATYPI sy-vline 
WA_CSLA1_STR-REKRS sy-vline 
WA_CSLA1_STR-RLSTA sy-vline 
WA_CSLA1_STR-KTEXT sy-vline 
WA_CSLA1_STR-LTEXT sy-vline 
WA_CSLA1_STR-TTEXT sy-vline 
WA_CSLA1_STR-TTEXTI sy-vline 
WA_CSLA1_STR-KATXT sy-vline 
WA_CSLA1_STR-TARTEXT sy-vline 
WA_CSLA1_STR-TARTEXTI sy-vline 
WA_CSLA1_STR-ALOCFL sy-vline 
WA_CSLA1_STR-NOALOC sy-vline 
WA_CSLA1_STR-LEINH_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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