ABAP Select data from SAP table FAGL_GLU1_FIX_FIELDS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FAGL_GLU1_FIX_FIELDS 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 FAGL_GLU1_FIX_FIELDS. 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 FAGL_GLU1_FIX_FIELDS 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_FAGL_GLU1_FIX_FIELDS TYPE STANDARD TABLE OF FAGL_GLU1_FIX_FIELDS,
      WA_FAGL_GLU1_FIX_FIELDS TYPE FAGL_GLU1_FIX_FIELDS,
      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: <FAGL_GLU1_FIX_FIELDS> TYPE FAGL_GLU1_FIX_FIELDS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FAGL_GLU1_FIX_FIELDS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FAGL_GLU1_FIX_FIELDS
  INTO TABLE IT_FAGL_GLU1_FIX_FIELDS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAGL_GLU1_FIX_FIELDS
*  INTO TABLE @DATA(IT_FAGL_GLU1_FIX_FIELDS2).
*--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_FAGL_GLU1_FIX_FIELDS INDEX 1 INTO DATA(WA_FAGL_GLU1_FIX_FIELDS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FAGL_GLU1_FIX_FIELDS ASSIGNING <FAGL_GLU1_FIX_FIELDS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAGL_GLU1_FIX_FIELDS>-RCLNT = 1.
<FAGL_GLU1_FIX_FIELDS>-OCLNT = 1.
<FAGL_GLU1_FIX_FIELDS>-RLDNR = 1.
<FAGL_GLU1_FIX_FIELDS>-RRCTY = 1.
<FAGL_GLU1_FIX_FIELDS>-RVERS = 1.

ENDLOOP.

LOOP AT IT_FAGL_GLU1_FIX_FIELDS INTO WA_FAGL_GLU1_FIX_FIELDS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAGL_GLU1_FIX_FIELDS-BUKRS, sy-vline,
  WA_FAGL_GLU1_FIX_FIELDS-OBUKR, sy-vline,
  WA_FAGL_GLU1_FIX_FIELDS-ROBUKRS, sy-vline,
  WA_FAGL_GLU1_FIX_FIELDS-RCOMP, sy-vline,
  WA_FAGL_GLU1_FIX_FIELDS-KOKRS, sy-vline,
  WA_FAGL_GLU1_FIX_FIELDS-RYEAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAGL_GLU1_FIX_FIELDS 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_FAGL_GLU1_FIX_FIELDS 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_FAGL_GLU1_FIX_FIELDS INTO WA_FAGL_GLU1_FIX_FIELDS.


*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 RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-RLDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RVERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-RVERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-RVERS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RCOMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-RCOMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-RCOMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field RYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-RYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RACCT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-RACCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-RACCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RPRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-RPRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-RPRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-DOCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-DOCNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-TSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-TSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field HSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-HSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-HSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field KSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-KSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-KSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field AUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-AUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-AUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RASSC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-RASSC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-RASSC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFDOCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-REFDOCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-REFDOCNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field REFRYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-REFRYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-REFRYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-LOGSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AWREF_REV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-AWREF_REV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-AWREF_REV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CATEGORY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_GLU1_FIX_FIELDS-CATEGORY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_GLU1_FIX_FIELDS-CATEGORY.
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_FAGL_GLU1_FIX_FIELDS_STR, 
RCLNT TYPE STRING,
OCLNT TYPE STRING,
RLDNR TYPE STRING,
RRCTY TYPE STRING,
RVERS TYPE STRING,
BUKRS TYPE STRING,
OBUKR TYPE STRING,
ROBUKRS TYPE STRING,
RCOMP TYPE STRING,
KOKRS TYPE STRING,
RYEAR TYPE STRING,
RACCT TYPE STRING,
RPRCTR TYPE STRING,
RBUSA TYPE STRING,
RTCUR TYPE STRING,
DRCRK TYPE STRING,
POPER TYPE STRING,
DOCCT TYPE STRING,
DOCNR TYPE STRING,
DOCLN TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
USNAM TYPE STRING,
TSL TYPE STRING,
HSL TYPE STRING,
KSL TYPE STRING,
ASL TYPE STRING,
AUNIT TYPE STRING,
SGTXT TYPE STRING,
AUTOM TYPE STRING,
DOCTY TYPE STRING,
ACTIV TYPE STRING,
BVORG TYPE STRING,
RASSC TYPE STRING,
STAGR TYPE STRING,
RLEVL TYPE STRING,
REFDOCNR TYPE STRING,
REFRYEAR TYPE STRING,
REFDOCLN TYPE STRING,
REFDOCCT TYPE STRING,
REFACTIV TYPE STRING,
AWTYP TYPE STRING,
AWORG TYPE STRING,
LOGSYS TYPE STRING,
AWREF_REV TYPE STRING,
AWORG_REV TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
CATEGORY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAGL_GLU1_FIX_FIELDS_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_FAGL_GLU1_FIX_FIELDS_STR-RCLNT sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-OCLNT sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-RLDNR sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-RRCTY sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-RVERS sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-BUKRS sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-OBUKR sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-ROBUKRS sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-RCOMP sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-KOKRS sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-RYEAR sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-RACCT sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-RPRCTR sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-RBUSA sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-RTCUR sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-DRCRK sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-POPER sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-DOCCT sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-DOCNR sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-DOCLN sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-CPUDT sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-CPUTM sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-USNAM sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-TSL sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-HSL sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-KSL sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-ASL sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-AUNIT sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-SGTXT sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-AUTOM sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-DOCTY sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-ACTIV sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-BVORG sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-RASSC sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-STAGR sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-RLEVL sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-REFDOCNR sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-REFRYEAR sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-REFDOCLN sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-REFDOCCT sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-REFACTIV sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-AWTYP sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-AWORG sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-LOGSYS sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-AWREF_REV sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-AWORG_REV sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-BELNR sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-GJAHR sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-BUZEI sy-vline 
WA_FAGL_GLU1_FIX_FIELDS_STR-CATEGORY sy-vline      INTO ld_text SEPARATED BY SPACE.

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