ABAP Select data from SAP table COSL1 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 COSL1 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 COSL1. 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 COSL1 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_COSL1 TYPE STANDARD TABLE OF COSL1,
      WA_COSL1 TYPE COSL1,
      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: <COSL1> TYPE COSL1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_COSL1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM COSL1
  INTO TABLE IT_COSL1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COSL1
*  INTO TABLE @DATA(IT_COSL12).
*--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_COSL1 INDEX 1 INTO DATA(WA_COSL12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_COSL1 ASSIGNING <COSL1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COSL1>-MANDT = 1.
<COSL1>-LEDNR = 1.
<COSL1>-OBJNR = 1.
<COSL1>-GJAHR = 1.
<COSL1>-WRTTP = 1.

ENDLOOP.

LOOP AT IT_COSL1 INTO WA_COSL1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COSL1-VERSN, sy-vline,
  WA_COSL1-VRGNG, sy-vline,
  WA_COSL1-PERBL, sy-vline,
  WA_COSL1-MEINH, sy-vline,
  WA_COSL1-LST001, sy-vline,
  WA_COSL1-LST002, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COSL1 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_COSL1 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_COSL1 INTO WA_COSL1.


*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_COSL1-LEDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COSL1-LEDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_COSL1-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COSL1-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WRTTP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COSL1-WRTTP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COSL1-WRTTP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COSL1-VERSN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COSL1-VERSN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_COSL1-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COSL1-MEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field AUSEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_COSL1-AUSEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COSL1-AUSEH.
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_COSL1_STR, 
MANDT TYPE STRING,
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,
AUSEH TYPE STRING,
AUS001 TYPE STRING,
AUS002 TYPE STRING,
AUS003 TYPE STRING,
AUS004 TYPE STRING,
AUS005 TYPE STRING,
AUS006 TYPE STRING,
AUS007 TYPE STRING,
AUS008 TYPE STRING,
AUS009 TYPE STRING,
AUS010 TYPE STRING,
AUS011 TYPE STRING,
AUS012 TYPE STRING,
AUS013 TYPE STRING,
AUS014 TYPE STRING,
AUS015 TYPE STRING,
AUS016 TYPE STRING,
DIS001 TYPE STRING,
DIS002 TYPE STRING,
DIS003 TYPE STRING,
DIS004 TYPE STRING,
DIS005 TYPE STRING,
DIS006 TYPE STRING,
DIS007 TYPE STRING,
DIS008 TYPE STRING,
DIS009 TYPE STRING,
DIS010 TYPE STRING,
DIS011 TYPE STRING,
DIS012 TYPE STRING,
DIS013 TYPE STRING,
DIS014 TYPE STRING,
DIS015 TYPE STRING,
DIS016 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,END OF T_EKKO_STR.
DATA: WA_COSL1_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_COSL1_STR-MANDT sy-vline 
WA_COSL1_STR-LEDNR sy-vline 
WA_COSL1_STR-OBJNR sy-vline 
WA_COSL1_STR-GJAHR sy-vline 
WA_COSL1_STR-WRTTP sy-vline 
WA_COSL1_STR-VERSN sy-vline 
WA_COSL1_STR-VRGNG sy-vline 
WA_COSL1_STR-PERBL sy-vline 
WA_COSL1_STR-MEINH sy-vline 
WA_COSL1_STR-LST001 sy-vline 
WA_COSL1_STR-LST002 sy-vline 
WA_COSL1_STR-LST003 sy-vline 
WA_COSL1_STR-LST004 sy-vline 
WA_COSL1_STR-LST005 sy-vline 
WA_COSL1_STR-LST006 sy-vline 
WA_COSL1_STR-LST007 sy-vline 
WA_COSL1_STR-LST008 sy-vline 
WA_COSL1_STR-LST009 sy-vline 
WA_COSL1_STR-LST010 sy-vline 
WA_COSL1_STR-LST011 sy-vline 
WA_COSL1_STR-LST012 sy-vline 
WA_COSL1_STR-LST013 sy-vline 
WA_COSL1_STR-LST014 sy-vline 
WA_COSL1_STR-LST015 sy-vline 
WA_COSL1_STR-LST016 sy-vline 
WA_COSL1_STR-KAP001 sy-vline 
WA_COSL1_STR-KAP002 sy-vline 
WA_COSL1_STR-KAP003 sy-vline 
WA_COSL1_STR-KAP004 sy-vline 
WA_COSL1_STR-KAP005 sy-vline 
WA_COSL1_STR-KAP006 sy-vline 
WA_COSL1_STR-KAP007 sy-vline 
WA_COSL1_STR-KAP008 sy-vline 
WA_COSL1_STR-KAP009 sy-vline 
WA_COSL1_STR-KAP010 sy-vline 
WA_COSL1_STR-KAP011 sy-vline 
WA_COSL1_STR-KAP012 sy-vline 
WA_COSL1_STR-KAP013 sy-vline 
WA_COSL1_STR-KAP014 sy-vline 
WA_COSL1_STR-KAP015 sy-vline 
WA_COSL1_STR-KAP016 sy-vline 
WA_COSL1_STR-AUSEH sy-vline 
WA_COSL1_STR-AUS001 sy-vline 
WA_COSL1_STR-AUS002 sy-vline 
WA_COSL1_STR-AUS003 sy-vline 
WA_COSL1_STR-AUS004 sy-vline 
WA_COSL1_STR-AUS005 sy-vline 
WA_COSL1_STR-AUS006 sy-vline 
WA_COSL1_STR-AUS007 sy-vline 
WA_COSL1_STR-AUS008 sy-vline 
WA_COSL1_STR-AUS009 sy-vline 
WA_COSL1_STR-AUS010 sy-vline 
WA_COSL1_STR-AUS011 sy-vline 
WA_COSL1_STR-AUS012 sy-vline 
WA_COSL1_STR-AUS013 sy-vline 
WA_COSL1_STR-AUS014 sy-vline 
WA_COSL1_STR-AUS015 sy-vline 
WA_COSL1_STR-AUS016 sy-vline 
WA_COSL1_STR-DIS001 sy-vline 
WA_COSL1_STR-DIS002 sy-vline 
WA_COSL1_STR-DIS003 sy-vline 
WA_COSL1_STR-DIS004 sy-vline 
WA_COSL1_STR-DIS005 sy-vline 
WA_COSL1_STR-DIS006 sy-vline 
WA_COSL1_STR-DIS007 sy-vline 
WA_COSL1_STR-DIS008 sy-vline 
WA_COSL1_STR-DIS009 sy-vline 
WA_COSL1_STR-DIS010 sy-vline 
WA_COSL1_STR-DIS011 sy-vline 
WA_COSL1_STR-DIS012 sy-vline 
WA_COSL1_STR-DIS013 sy-vline 
WA_COSL1_STR-DIS014 sy-vline 
WA_COSL1_STR-DIS015 sy-vline 
WA_COSL1_STR-DIS016 sy-vline 
WA_COSL1_STR-AEQ001 sy-vline 
WA_COSL1_STR-AEQ002 sy-vline 
WA_COSL1_STR-AEQ003 sy-vline 
WA_COSL1_STR-AEQ004 sy-vline 
WA_COSL1_STR-AEQ005 sy-vline 
WA_COSL1_STR-AEQ006 sy-vline 
WA_COSL1_STR-AEQ007 sy-vline 
WA_COSL1_STR-AEQ008 sy-vline 
WA_COSL1_STR-AEQ009 sy-vline 
WA_COSL1_STR-AEQ010 sy-vline 
WA_COSL1_STR-AEQ011 sy-vline 
WA_COSL1_STR-AEQ012 sy-vline 
WA_COSL1_STR-AEQ013 sy-vline 
WA_COSL1_STR-AEQ014 sy-vline 
WA_COSL1_STR-AEQ015 sy-vline 
WA_COSL1_STR-AEQ016 sy-vline      INTO ld_text SEPARATED BY SPACE.

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