ABAP Select data from SAP table E3CSLAM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E3CSLAM 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 E3CSLAM. 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 E3CSLAM 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_E3CSLAM TYPE STANDARD TABLE OF E3CSLAM,
      WA_E3CSLAM TYPE E3CSLAM,
      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: <E3CSLAM> TYPE E3CSLAM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E3CSLAM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E3CSLAM
  INTO TABLE IT_E3CSLAM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E3CSLAM
*  INTO TABLE @DATA(IT_E3CSLAM2).
*--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_E3CSLAM INDEX 1 INTO DATA(WA_E3CSLAM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E3CSLAM ASSIGNING <E3CSLAM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E3CSLAM>-MSGFN = 1.
<E3CSLAM>-KOKRS = 1.
<E3CSLAM>-LSTAR = 1.
<E3CSLAM>-DATBI = 1.
<E3CSLAM>-DATAB = 1.

ENDLOOP.

LOOP AT IT_E3CSLAM INTO WA_E3CSLAM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E3CSLAM-ERSDA, sy-vline,
  WA_E3CSLAM-USNAM, sy-vline,
  WA_E3CSLAM-LEINH, sy-vline,
  WA_E3CSLAM-KSTTY, sy-vline,
  WA_E3CSLAM-AUSEH, sy-vline,
  WA_E3CSLAM-AUSFK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E3CSLAM 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_E3CSLAM 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_E3CSLAM INTO WA_E3CSLAM.


*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_E3CSLAM-LEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CSLAM-LEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field AUSEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_E3CSLAM-AUSEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CSLAM-AUSEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VKSTA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3CSLAM-VKSTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CSLAM-VKSTA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TARKZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3CSLAM-TARKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CSLAM-TARKZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TARKZ_I
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3CSLAM-TARKZ_I
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3CSLAM-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_E3CSLAM_STR, 
MSGFN 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,
SPRKZ TYPE STRING,
HRKFT TYPE STRING,
FIXVO TYPE STRING,
TARKZ TYPE STRING,
YRATE TYPE STRING,
TARKZ_I TYPE STRING,
LATYPI TYPE STRING,
LARK1 TYPE STRING,
LARK2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E3CSLAM_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_E3CSLAM_STR-MSGFN sy-vline 
WA_E3CSLAM_STR-KOKRS sy-vline 
WA_E3CSLAM_STR-LSTAR sy-vline 
WA_E3CSLAM_STR-DATBI sy-vline 
WA_E3CSLAM_STR-DATAB sy-vline 
WA_E3CSLAM_STR-ERSDA sy-vline 
WA_E3CSLAM_STR-USNAM sy-vline 
WA_E3CSLAM_STR-LEINH sy-vline 
WA_E3CSLAM_STR-KSTTY sy-vline 
WA_E3CSLAM_STR-AUSEH sy-vline 
WA_E3CSLAM_STR-AUSFK sy-vline 
WA_E3CSLAM_STR-VKSTA sy-vline 
WA_E3CSLAM_STR-LATYP sy-vline 
WA_E3CSLAM_STR-SPRKZ sy-vline 
WA_E3CSLAM_STR-HRKFT sy-vline 
WA_E3CSLAM_STR-FIXVO sy-vline 
WA_E3CSLAM_STR-TARKZ sy-vline 
WA_E3CSLAM_STR-YRATE sy-vline 
WA_E3CSLAM_STR-TARKZ_I sy-vline 
WA_E3CSLAM_STR-LATYPI sy-vline 
WA_E3CSLAM_STR-LARK1 sy-vline 
WA_E3CSLAM_STR-LARK2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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