ABAP Select data from SAP table FAGLSKF_GLU1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FAGLSKF_GLU1 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 FAGLSKF_GLU1. 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 FAGLSKF_GLU1 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_FAGLSKF_GLU1 TYPE STANDARD TABLE OF FAGLSKF_GLU1,
      WA_FAGLSKF_GLU1 TYPE FAGLSKF_GLU1,
      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: <FAGLSKF_GLU1> TYPE FAGLSKF_GLU1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FAGLSKF_GLU1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FAGLSKF_GLU1
  INTO TABLE IT_FAGLSKF_GLU1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAGLSKF_GLU1
*  INTO TABLE @DATA(IT_FAGLSKF_GLU12).
*--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_FAGLSKF_GLU1 INDEX 1 INTO DATA(WA_FAGLSKF_GLU12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FAGLSKF_GLU1 ASSIGNING <FAGLSKF_GLU1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAGLSKF_GLU1>-RCLNT = 1.
<FAGLSKF_GLU1>-CANC_DOCNR = 1.
<FAGLSKF_GLU1>-DATE_FROM = 1.
<FAGLSKF_GLU1>-DATE_TO = 1.
<FAGLSKF_GLU1>-DELTA_IND = 1.

ENDLOOP.

LOOP AT IT_FAGLSKF_GLU1 INTO WA_FAGLSKF_GLU1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAGLSKF_GLU1-DOCLN, sy-vline,
  WA_FAGLSKF_GLU1-DOCNR, sy-vline,
  WA_FAGLSKF_GLU1-GRTYP, sy-vline,
  WA_FAGLSKF_GLU1-KOKRS, sy-vline,
  WA_FAGLSKF_GLU1-LOGSYS, sy-vline,
  WA_FAGLSKF_GLU1-MSL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAGLSKF_GLU1 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_FAGLSKF_GLU1 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_FAGLSKF_GLU1 INTO WA_FAGLSKF_GLU1.


*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 CANC_DOCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGLSKF_GLU1-CANC_DOCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGLSKF_GLU1-CANC_DOCNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGLSKF_GLU1-DOCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGLSKF_GLU1-DOCNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGLSKF_GLU1-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGLSKF_GLU1-LOGSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGLSKF_GLU1-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGLSKF_GLU1-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RCNTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGLSKF_GLU1-RCNTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGLSKF_GLU1-RCNTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFDOCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGLSKF_GLU1-REFDOCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGLSKF_GLU1-REFDOCNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGLSKF_GLU1-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGLSKF_GLU1-RLDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FAGLSKF_GLU1-RUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGLSKF_GLU1-RUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RVERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGLSKF_GLU1-RVERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGLSKF_GLU1-RVERS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field RYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FAGLSKF_GLU1-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGLSKF_GLU1-RYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGLSKF_GLU1-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGLSKF_GLU1-SEGMENT.
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_FAGLSKF_GLU1_STR, 
RCLNT TYPE STRING,
CANC_DOCNR TYPE STRING,
DATE_FROM TYPE STRING,
DATE_TO TYPE STRING,
DELTA_IND TYPE STRING,
DOCLN TYPE STRING,
DOCNR TYPE STRING,
GRTYP TYPE STRING,
KOKRS TYPE STRING,
LOGSYS TYPE STRING,
MSL TYPE STRING,
MSL01 TYPE STRING,
MSL02 TYPE STRING,
MSL03 TYPE STRING,
MSL04 TYPE STRING,
MSL05 TYPE STRING,
MSL06 TYPE STRING,
MSL07 TYPE STRING,
MSL08 TYPE STRING,
MSL09 TYPE STRING,
MSL10 TYPE STRING,
MSL11 TYPE STRING,
MSL12 TYPE STRING,
MSL13 TYPE STRING,
MSL14 TYPE STRING,
MSL15 TYPE STRING,
MSL16 TYPE STRING,
MSLVT TYPE STRING,
OBART TYPE STRING,
POPER TYPE STRING,
PRCTR TYPE STRING,
RBUKRS TYPE STRING,
RBUSA TYPE STRING,
ACTIV TYPE STRING,
RCNTR TYPE STRING,
RECID TYPE STRING,
REFDOCNR TYPE STRING,
RFAREA TYPE STRING,
RLDNR TYPE STRING,
RPMAX TYPE STRING,
RRCTY TYPE STRING,
RUNIT TYPE STRING,
RVERS TYPE STRING,
RYEAR TYPE STRING,
SEGMENT TYPE STRING,
STAGR TYPE STRING,
TIMESTAMP TYPE STRING,
USNAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAGLSKF_GLU1_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_FAGLSKF_GLU1_STR-RCLNT sy-vline 
WA_FAGLSKF_GLU1_STR-CANC_DOCNR sy-vline 
WA_FAGLSKF_GLU1_STR-DATE_FROM sy-vline 
WA_FAGLSKF_GLU1_STR-DATE_TO sy-vline 
WA_FAGLSKF_GLU1_STR-DELTA_IND sy-vline 
WA_FAGLSKF_GLU1_STR-DOCLN sy-vline 
WA_FAGLSKF_GLU1_STR-DOCNR sy-vline 
WA_FAGLSKF_GLU1_STR-GRTYP sy-vline 
WA_FAGLSKF_GLU1_STR-KOKRS sy-vline 
WA_FAGLSKF_GLU1_STR-LOGSYS sy-vline 
WA_FAGLSKF_GLU1_STR-MSL sy-vline 
WA_FAGLSKF_GLU1_STR-MSL01 sy-vline 
WA_FAGLSKF_GLU1_STR-MSL02 sy-vline 
WA_FAGLSKF_GLU1_STR-MSL03 sy-vline 
WA_FAGLSKF_GLU1_STR-MSL04 sy-vline 
WA_FAGLSKF_GLU1_STR-MSL05 sy-vline 
WA_FAGLSKF_GLU1_STR-MSL06 sy-vline 
WA_FAGLSKF_GLU1_STR-MSL07 sy-vline 
WA_FAGLSKF_GLU1_STR-MSL08 sy-vline 
WA_FAGLSKF_GLU1_STR-MSL09 sy-vline 
WA_FAGLSKF_GLU1_STR-MSL10 sy-vline 
WA_FAGLSKF_GLU1_STR-MSL11 sy-vline 
WA_FAGLSKF_GLU1_STR-MSL12 sy-vline 
WA_FAGLSKF_GLU1_STR-MSL13 sy-vline 
WA_FAGLSKF_GLU1_STR-MSL14 sy-vline 
WA_FAGLSKF_GLU1_STR-MSL15 sy-vline 
WA_FAGLSKF_GLU1_STR-MSL16 sy-vline 
WA_FAGLSKF_GLU1_STR-MSLVT sy-vline 
WA_FAGLSKF_GLU1_STR-OBART sy-vline 
WA_FAGLSKF_GLU1_STR-POPER sy-vline 
WA_FAGLSKF_GLU1_STR-PRCTR sy-vline 
WA_FAGLSKF_GLU1_STR-RBUKRS sy-vline 
WA_FAGLSKF_GLU1_STR-RBUSA sy-vline 
WA_FAGLSKF_GLU1_STR-ACTIV sy-vline 
WA_FAGLSKF_GLU1_STR-RCNTR sy-vline 
WA_FAGLSKF_GLU1_STR-RECID sy-vline 
WA_FAGLSKF_GLU1_STR-REFDOCNR sy-vline 
WA_FAGLSKF_GLU1_STR-RFAREA sy-vline 
WA_FAGLSKF_GLU1_STR-RLDNR sy-vline 
WA_FAGLSKF_GLU1_STR-RPMAX sy-vline 
WA_FAGLSKF_GLU1_STR-RRCTY sy-vline 
WA_FAGLSKF_GLU1_STR-RUNIT sy-vline 
WA_FAGLSKF_GLU1_STR-RVERS sy-vline 
WA_FAGLSKF_GLU1_STR-RYEAR sy-vline 
WA_FAGLSKF_GLU1_STR-SEGMENT sy-vline 
WA_FAGLSKF_GLU1_STR-STAGR sy-vline 
WA_FAGLSKF_GLU1_STR-TIMESTAMP sy-vline 
WA_FAGLSKF_GLU1_STR-USNAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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