ABAP Select data from SAP table GLFLEXA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GLFLEXA
*  INTO TABLE @DATA(IT_GLFLEXA2).
*--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_GLFLEXA INDEX 1 INTO DATA(WA_GLFLEXA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GLFLEXA>-RCLNT = 1.
<GLFLEXA>-RYEAR = 1.
<GLFLEXA>-DOCNR = 1.
<GLFLEXA>-RLDNR = 1.
<GLFLEXA>-RBUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GLFLEXA-DOCLN, sy-vline,
  WA_GLFLEXA-DOCCT, sy-vline,
  WA_GLFLEXA-DRCRK, sy-vline,
  WA_GLFLEXA-POPER, sy-vline,
  WA_GLFLEXA-RRCTY, sy-vline,
  WA_GLFLEXA-RVERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GLFLEXA 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_GLFLEXA 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_GLFLEXA INTO WA_GLFLEXA.


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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GLFLEXA-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLFLEXA-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_GLFLEXA_STR, 
RCLNT TYPE STRING,
RYEAR TYPE STRING,
DOCNR TYPE STRING,
RLDNR TYPE STRING,
RBUKRS TYPE STRING,
DOCLN TYPE STRING,
DOCCT TYPE STRING,
DRCRK TYPE STRING,
POPER TYPE STRING,
RRCTY TYPE STRING,
RVERS TYPE STRING,
RACCT TYPE STRING,
RCNTR TYPE STRING,
PRCTR TYPE STRING,
RFAREA TYPE STRING,
RBUSA TYPE STRING,
KOKRS TYPE STRING,
SACCT TYPE STRING,
SCNTR TYPE STRING,
PPRCTR TYPE STRING,
SFAREA TYPE STRING,
SBUSA TYPE STRING,
RASSC TYPE STRING,
ACTIV TYPE STRING,
RMVCT TYPE STRING,
RTCUR TYPE STRING,
RUNIT TYPE STRING,
LOGSYS TYPE STRING,
TSL TYPE STRING,
HSL TYPE STRING,
KSL TYPE STRING,
OSL TYPE STRING,
MSL TYPE STRING,
SGTXT TYPE STRING,
DOCTY TYPE STRING,
BUDAT TYPE STRING,
WSDAT TYPE STRING,
BLDAT TYPE STRING,
VALUT TYPE STRING,
REFDOCNR TYPE STRING,
REFRYEAR TYPE STRING,
REFDOCLN TYPE STRING,
REFDOCCT TYPE STRING,
REFACTIV TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
USNAM TYPE STRING,
AWTYP TYPE STRING,
AWORG TYPE STRING,
WSL TYPE STRING,
RWCUR TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
LINETYPE TYPE STRING,
XSPLITMOD TYPE STRING,
MWSKZ TYPE STRING,
XSKRL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GLFLEXA_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_GLFLEXA_STR-RCLNT sy-vline 
WA_GLFLEXA_STR-RYEAR sy-vline 
WA_GLFLEXA_STR-DOCNR sy-vline 
WA_GLFLEXA_STR-RLDNR sy-vline 
WA_GLFLEXA_STR-RBUKRS sy-vline 
WA_GLFLEXA_STR-DOCLN sy-vline 
WA_GLFLEXA_STR-DOCCT sy-vline 
WA_GLFLEXA_STR-DRCRK sy-vline 
WA_GLFLEXA_STR-POPER sy-vline 
WA_GLFLEXA_STR-RRCTY sy-vline 
WA_GLFLEXA_STR-RVERS sy-vline 
WA_GLFLEXA_STR-RACCT sy-vline 
WA_GLFLEXA_STR-RCNTR sy-vline 
WA_GLFLEXA_STR-PRCTR sy-vline 
WA_GLFLEXA_STR-RFAREA sy-vline 
WA_GLFLEXA_STR-RBUSA sy-vline 
WA_GLFLEXA_STR-KOKRS sy-vline 
WA_GLFLEXA_STR-SACCT sy-vline 
WA_GLFLEXA_STR-SCNTR sy-vline 
WA_GLFLEXA_STR-PPRCTR sy-vline 
WA_GLFLEXA_STR-SFAREA sy-vline 
WA_GLFLEXA_STR-SBUSA sy-vline 
WA_GLFLEXA_STR-RASSC sy-vline 
WA_GLFLEXA_STR-ACTIV sy-vline 
WA_GLFLEXA_STR-RMVCT sy-vline 
WA_GLFLEXA_STR-RTCUR sy-vline 
WA_GLFLEXA_STR-RUNIT sy-vline 
WA_GLFLEXA_STR-LOGSYS sy-vline 
WA_GLFLEXA_STR-TSL sy-vline 
WA_GLFLEXA_STR-HSL sy-vline 
WA_GLFLEXA_STR-KSL sy-vline 
WA_GLFLEXA_STR-OSL sy-vline 
WA_GLFLEXA_STR-MSL sy-vline 
WA_GLFLEXA_STR-SGTXT sy-vline 
WA_GLFLEXA_STR-DOCTY sy-vline 
WA_GLFLEXA_STR-BUDAT sy-vline 
WA_GLFLEXA_STR-WSDAT sy-vline 
WA_GLFLEXA_STR-BLDAT sy-vline 
WA_GLFLEXA_STR-VALUT sy-vline 
WA_GLFLEXA_STR-REFDOCNR sy-vline 
WA_GLFLEXA_STR-REFRYEAR sy-vline 
WA_GLFLEXA_STR-REFDOCLN sy-vline 
WA_GLFLEXA_STR-REFDOCCT sy-vline 
WA_GLFLEXA_STR-REFACTIV sy-vline 
WA_GLFLEXA_STR-CPUDT sy-vline 
WA_GLFLEXA_STR-CPUTM sy-vline 
WA_GLFLEXA_STR-USNAM sy-vline 
WA_GLFLEXA_STR-AWTYP sy-vline 
WA_GLFLEXA_STR-AWORG sy-vline 
WA_GLFLEXA_STR-WSL sy-vline 
WA_GLFLEXA_STR-RWCUR sy-vline 
WA_GLFLEXA_STR-BELNR sy-vline 
WA_GLFLEXA_STR-BUZEI sy-vline 
WA_GLFLEXA_STR-LINETYPE sy-vline 
WA_GLFLEXA_STR-XSPLITMOD sy-vline 
WA_GLFLEXA_STR-MWSKZ sy-vline 
WA_GLFLEXA_STR-XSKRL sy-vline      INTO ld_text SEPARATED BY SPACE.

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