ABAP Select data from SAP table GANLC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GANLC 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 GANLC.

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 GANLC 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_GANLC TYPE STANDARD TABLE OF GANLC,
      WA_GANLC TYPE GANLC,
      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: <GANLC> TYPE GANLC.


*Original SAP ECC Select statement 
SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM GANLC
  INTO TABLE IT_GANLC.

*Select data and declare internal table using  in-line method @DATA 
SELECT *
  FROM GANLC
  INTO TABLE @DATA(IT_GANLC2).

*You can also declare the header/work area using the  in-line DATA declaration method 
READ TABLE IT_GANLC INDEX 1 INTO DATA(WA_GANLC2).


*Latest ABAP cloud SELECT statement using the FIELDS syntax. But note to following the clean core principles you should not select directly from an SAP table 
* and should instead use a CDS view or create you own CDS and use that.
SELECT FROM GANLC
  FIELDS *
*  WHERE would go here
  INTO TABLE @DATA(IT_GANLC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GANLC>-KANSW = 1.
<GANLC>-KAUFW = 1.
<GANLC>-KINVZ = 1.
<GANLC>-KNAFA = 1.
<GANLC>-KSAFA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GANLC-KAAFA, sy-vline,
  WA_GANLC-KMAFA, sy-vline,
  WA_GANLC-KZINW, sy-vline,
  WA_GANLC-KAUFN, sy-vline,
  WA_GANLC-KVOST, sy-vline,
  WA_GANLC-AUFWP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GANLC 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_GANLC 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_GANLC INTO WA_GANLC.


*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 AC132, internal->external for field KANSW
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-KANSW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-KANSW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field KAUFW
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-KAUFW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-KAUFW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field KINVZ
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-KINVZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-KINVZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field KNAFA
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-KNAFA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-KNAFA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field KSAFA
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-KSAFA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-KSAFA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field KAAFA
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-KAAFA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-KAAFA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field KMAFA
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-KMAFA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-KMAFA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field KZINW
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-KZINW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-KZINW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field KAUFN
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-KAUFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-KAUFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field KVOST
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-KVOST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-KVOST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFWP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-AUFWP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-AUFWP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field NAFAP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-NAFAP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-NAFAP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field SAFAP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-SAFAP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-SAFAP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AAFAP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-AAFAP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-AAFAP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field MAFAP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-MAFAP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-MAFAP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ZINSP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-ZINSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-ZINSP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFNP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-AUFNP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-AUFNP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ANSWL
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-ANSWL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-ANSWL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ZUGAN
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-ZUGAN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-ZUGAN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ABGAN
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-ABGAN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-ABGAN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ANSAZ
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-ANSAZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-ANSAZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFWM
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-AUFWM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-AUFWM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field INVZM
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-INVZM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-INVZM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field NAFAM
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-NAFAM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-NAFAM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field SAFAM
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-SAFAM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-SAFAM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AAFAM
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-AAFAM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-AAFAM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field MAFAM
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-MAFAM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-MAFAM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ZINSM
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-ZINSM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-ZINSM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFNM
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-AUFNM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-AUFNM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ZUSNA
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-ZUSNA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-ZUSNA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ZUSSA
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-ZUSSA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-ZUSSA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ZUSAA
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-ZUSAA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-ZUSAA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ZUSMA
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-ZUSMA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-ZUSMA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFWV
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-AUFWV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-AUFWV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field INVZV
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-INVZV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-INVZV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field NAFAV
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-NAFAV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-NAFAV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field SAFAV
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-SAFAV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-SAFAV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AAFAV
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-AAFAV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-AAFAV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field MAFAV
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-MAFAV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-MAFAV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFNV
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-AUFNV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-AUFNV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFWL
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-AUFWL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-AUFWL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field INVZL
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-INVZL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-INVZL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field NAFAL
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-NAFAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-NAFAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field SAFAL
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-SAFAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-SAFAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AAFAL
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-AAFAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-AAFAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field MAFAL
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-MAFAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-MAFAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFNL
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-AUFNL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-AUFNL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field KSANS
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-KSANS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-KSANS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field SANSL
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_GANLC-SANSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GANLC-SANSL.
WRITE:/ 'New Value:', ld_input.
ENDFORM.