ABAP Select data from SAP table FMFG_SAV_GLIDXA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMFG_SAV_GLIDXA
*  INTO TABLE @DATA(IT_FMFG_SAV_GLIDXA2).
*--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_FMFG_SAV_GLIDXA INDEX 1 INTO DATA(WA_FMFG_SAV_GLIDXA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMFG_SAV_GLIDXA>-RCLNT = 1.
<FMFG_SAV_GLIDXA>-AWREF = 1.
<FMFG_SAV_GLIDXA>-AWTYP = 1.
<FMFG_SAV_GLIDXA>-AWORG = 1.
<FMFG_SAV_GLIDXA>-RLDNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMFG_SAV_GLIDXA-DOCCT, sy-vline,
  WA_FMFG_SAV_GLIDXA-RYEAR, sy-vline,
  WA_FMFG_SAV_GLIDXA-DOCNR, sy-vline,
  WA_FMFG_SAV_GLIDXA-BUDAT, sy-vline,
  WA_FMFG_SAV_GLIDXA-RRCTY, sy-vline,
  WA_FMFG_SAV_GLIDXA-RVERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMFG_SAV_GLIDXA 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_FMFG_SAV_GLIDXA 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_FMFG_SAV_GLIDXA INTO WA_FMFG_SAV_GLIDXA.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMFG_SAV_GLIDXA-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMFG_SAV_GLIDXA-BELNR.
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_FMFG_SAV_GLIDXA_STR, 
RCLNT TYPE STRING,
AWREF TYPE STRING,
AWTYP TYPE STRING,
AWORG TYPE STRING,
RLDNR TYPE STRING,
DOCCT TYPE STRING,
RYEAR TYPE STRING,
DOCNR TYPE STRING,
BUDAT TYPE STRING,
RRCTY TYPE STRING,
RVERS TYPE STRING,
RCOMP TYPE STRING,
BUKRS TYPE STRING,
DOCTY TYPE STRING,
BELNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMFG_SAV_GLIDXA_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_FMFG_SAV_GLIDXA_STR-RCLNT sy-vline 
WA_FMFG_SAV_GLIDXA_STR-AWREF sy-vline 
WA_FMFG_SAV_GLIDXA_STR-AWTYP sy-vline 
WA_FMFG_SAV_GLIDXA_STR-AWORG sy-vline 
WA_FMFG_SAV_GLIDXA_STR-RLDNR sy-vline 
WA_FMFG_SAV_GLIDXA_STR-DOCCT sy-vline 
WA_FMFG_SAV_GLIDXA_STR-RYEAR sy-vline 
WA_FMFG_SAV_GLIDXA_STR-DOCNR sy-vline 
WA_FMFG_SAV_GLIDXA_STR-BUDAT sy-vline 
WA_FMFG_SAV_GLIDXA_STR-RRCTY sy-vline 
WA_FMFG_SAV_GLIDXA_STR-RVERS sy-vline 
WA_FMFG_SAV_GLIDXA_STR-RCOMP sy-vline 
WA_FMFG_SAV_GLIDXA_STR-BUKRS sy-vline 
WA_FMFG_SAV_GLIDXA_STR-DOCTY sy-vline 
WA_FMFG_SAV_GLIDXA_STR-BELNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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