ABAP Select data from SAP table E3COSL 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 E3COSL 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 E3COSL. 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 E3COSL 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_E3COSL TYPE STANDARD TABLE OF E3COSL,
      WA_E3COSL TYPE E3COSL,
      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: <E3COSL> TYPE E3COSL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E3COSL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E3COSL
  INTO TABLE IT_E3COSL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E3COSL
*  INTO TABLE @DATA(IT_E3COSL2).
*--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_E3COSL INDEX 1 INTO DATA(WA_E3COSL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E3COSL ASSIGNING <E3COSL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E3COSL>-LEDNR = 1.
<E3COSL>-OBJNR = 1.
<E3COSL>-GJAHR = 1.
<E3COSL>-WRTTP = 1.
<E3COSL>-VERSN = 1.

ENDLOOP.

LOOP AT IT_E3COSL INTO WA_E3COSL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E3COSL-VRGNG, sy-vline,
  WA_E3COSL-PERBL, sy-vline,
  WA_E3COSL-MEINH, sy-vline,
  WA_E3COSL-LST001, sy-vline,
  WA_E3COSL-LST002, sy-vline,
  WA_E3COSL-LST003, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E3COSL 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_E3COSL 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_E3COSL INTO WA_E3COSL.


*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 LEDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3COSL-LEDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3COSL-LEDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_E3COSL-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3COSL-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WRTTP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3COSL-WRTTP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3COSL-WRTTP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3COSL-VERSN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3COSL-VERSN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_E3COSL-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3COSL-MEINH.
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_E3COSL_STR, 
LEDNR TYPE STRING,
OBJNR TYPE STRING,
GJAHR TYPE STRING,
WRTTP TYPE STRING,
VERSN TYPE STRING,
VRGNG TYPE STRING,
PERBL TYPE STRING,
MEINH TYPE STRING,
LST001 TYPE STRING,
LST002 TYPE STRING,
LST003 TYPE STRING,
LST004 TYPE STRING,
LST005 TYPE STRING,
LST006 TYPE STRING,
LST007 TYPE STRING,
LST008 TYPE STRING,
LST009 TYPE STRING,
LST010 TYPE STRING,
LST011 TYPE STRING,
LST012 TYPE STRING,
LST013 TYPE STRING,
LST014 TYPE STRING,
LST015 TYPE STRING,
LST016 TYPE STRING,
KAP001 TYPE STRING,
KAP002 TYPE STRING,
KAP003 TYPE STRING,
KAP004 TYPE STRING,
KAP005 TYPE STRING,
KAP006 TYPE STRING,
KAP007 TYPE STRING,
KAP008 TYPE STRING,
KAP009 TYPE STRING,
KAP010 TYPE STRING,
KAP011 TYPE STRING,
KAP012 TYPE STRING,
KAP013 TYPE STRING,
KAP014 TYPE STRING,
KAP015 TYPE STRING,
KAP016 TYPE STRING,
AEQ001 TYPE STRING,
AEQ002 TYPE STRING,
AEQ003 TYPE STRING,
AEQ004 TYPE STRING,
AEQ005 TYPE STRING,
AEQ006 TYPE STRING,
AEQ007 TYPE STRING,
AEQ008 TYPE STRING,
AEQ009 TYPE STRING,
AEQ010 TYPE STRING,
AEQ011 TYPE STRING,
AEQ012 TYPE STRING,
AEQ013 TYPE STRING,
AEQ014 TYPE STRING,
AEQ015 TYPE STRING,
AEQ016 TYPE STRING,
XDELE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E3COSL_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_E3COSL_STR-LEDNR sy-vline 
WA_E3COSL_STR-OBJNR sy-vline 
WA_E3COSL_STR-GJAHR sy-vline 
WA_E3COSL_STR-WRTTP sy-vline 
WA_E3COSL_STR-VERSN sy-vline 
WA_E3COSL_STR-VRGNG sy-vline 
WA_E3COSL_STR-PERBL sy-vline 
WA_E3COSL_STR-MEINH sy-vline 
WA_E3COSL_STR-LST001 sy-vline 
WA_E3COSL_STR-LST002 sy-vline 
WA_E3COSL_STR-LST003 sy-vline 
WA_E3COSL_STR-LST004 sy-vline 
WA_E3COSL_STR-LST005 sy-vline 
WA_E3COSL_STR-LST006 sy-vline 
WA_E3COSL_STR-LST007 sy-vline 
WA_E3COSL_STR-LST008 sy-vline 
WA_E3COSL_STR-LST009 sy-vline 
WA_E3COSL_STR-LST010 sy-vline 
WA_E3COSL_STR-LST011 sy-vline 
WA_E3COSL_STR-LST012 sy-vline 
WA_E3COSL_STR-LST013 sy-vline 
WA_E3COSL_STR-LST014 sy-vline 
WA_E3COSL_STR-LST015 sy-vline 
WA_E3COSL_STR-LST016 sy-vline 
WA_E3COSL_STR-KAP001 sy-vline 
WA_E3COSL_STR-KAP002 sy-vline 
WA_E3COSL_STR-KAP003 sy-vline 
WA_E3COSL_STR-KAP004 sy-vline 
WA_E3COSL_STR-KAP005 sy-vline 
WA_E3COSL_STR-KAP006 sy-vline 
WA_E3COSL_STR-KAP007 sy-vline 
WA_E3COSL_STR-KAP008 sy-vline 
WA_E3COSL_STR-KAP009 sy-vline 
WA_E3COSL_STR-KAP010 sy-vline 
WA_E3COSL_STR-KAP011 sy-vline 
WA_E3COSL_STR-KAP012 sy-vline 
WA_E3COSL_STR-KAP013 sy-vline 
WA_E3COSL_STR-KAP014 sy-vline 
WA_E3COSL_STR-KAP015 sy-vline 
WA_E3COSL_STR-KAP016 sy-vline 
WA_E3COSL_STR-AEQ001 sy-vline 
WA_E3COSL_STR-AEQ002 sy-vline 
WA_E3COSL_STR-AEQ003 sy-vline 
WA_E3COSL_STR-AEQ004 sy-vline 
WA_E3COSL_STR-AEQ005 sy-vline 
WA_E3COSL_STR-AEQ006 sy-vline 
WA_E3COSL_STR-AEQ007 sy-vline 
WA_E3COSL_STR-AEQ008 sy-vline 
WA_E3COSL_STR-AEQ009 sy-vline 
WA_E3COSL_STR-AEQ010 sy-vline 
WA_E3COSL_STR-AEQ011 sy-vline 
WA_E3COSL_STR-AEQ012 sy-vline 
WA_E3COSL_STR-AEQ013 sy-vline 
WA_E3COSL_STR-AEQ014 sy-vline 
WA_E3COSL_STR-AEQ015 sy-vline 
WA_E3COSL_STR-AEQ016 sy-vline 
WA_E3COSL_STR-XDELE sy-vline      INTO ld_text SEPARATED BY SPACE.

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