ABAP Select data from SAP table GLE_MCA_STR_BKPF_ALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GLE_MCA_STR_BKPF_ALV
*  INTO TABLE @DATA(IT_GLE_MCA_STR_BKPF_ALV2).
*--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_GLE_MCA_STR_BKPF_ALV INDEX 1 INTO DATA(WA_GLE_MCA_STR_BKPF_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GLE_MCA_STR_BKPF_ALV>-RLDNR = 1.
<GLE_MCA_STR_BKPF_ALV>-DOC_NO = 1.
<GLE_MCA_STR_BKPF_ALV>-BELNR = 1.
<GLE_MCA_STR_BKPF_ALV>-DOC_NO = 1.
<GLE_MCA_STR_BKPF_ALV>-BELNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GLE_MCA_STR_BKPF_ALV-TCODE, sy-vline,
  WA_GLE_MCA_STR_BKPF_ALV-BLDAT, sy-vline,
  WA_GLE_MCA_STR_BKPF_ALV-TCODE, sy-vline,
  WA_GLE_MCA_STR_BKPF_ALV-BLART, sy-vline,
  WA_GLE_MCA_STR_BKPF_ALV-BLDAT, sy-vline,
  WA_GLE_MCA_STR_BKPF_ALV-BLART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GLE_MCA_STR_BKPF_ALV 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_GLE_MCA_STR_BKPF_ALV 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_GLE_MCA_STR_BKPF_ALV INTO WA_GLE_MCA_STR_BKPF_ALV.


*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_GLE_MCA_STR_BKPF_ALV-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_MCA_STR_BKPF_ALV-RLDNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit EXCRT, internal->external for field KURSF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_GLE_MCA_STR_BKPF_ALV-KURSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_MCA_STR_BKPF_ALV-KURSF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURS2
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_GLE_MCA_STR_BKPF_ALV-KURS2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_MCA_STR_BKPF_ALV-KURS2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_GLE_MCA_STR_BKPF_ALV-KURSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_MCA_STR_BKPF_ALV-KURSF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURS2
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_GLE_MCA_STR_BKPF_ALV-KURS2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_MCA_STR_BKPF_ALV-KURS2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURS3
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_GLE_MCA_STR_BKPF_ALV-KURS3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_MCA_STR_BKPF_ALV-KURS3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURS3
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_GLE_MCA_STR_BKPF_ALV-KURS3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_MCA_STR_BKPF_ALV-KURS3.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit EXCRX, internal->external for field KURSX
CALL FUNCTION 'CONVERSION_EXIT_EXCRX_OUTPUT'
  EXPORTING
    input =                      WA_GLE_MCA_STR_BKPF_ALV-KURSX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_MCA_STR_BKPF_ALV-KURSX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRX, internal->external for field KUR2X
CALL FUNCTION 'CONVERSION_EXIT_EXCRX_OUTPUT'
  EXPORTING
    input =                      WA_GLE_MCA_STR_BKPF_ALV-KUR2X
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_MCA_STR_BKPF_ALV-KUR2X.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRX, internal->external for field KURSX
CALL FUNCTION 'CONVERSION_EXIT_EXCRX_OUTPUT'
  EXPORTING
    input =                      WA_GLE_MCA_STR_BKPF_ALV-KURSX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_MCA_STR_BKPF_ALV-KURSX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRX, internal->external for field KUR2X
CALL FUNCTION 'CONVERSION_EXIT_EXCRX_OUTPUT'
  EXPORTING
    input =                      WA_GLE_MCA_STR_BKPF_ALV-KUR2X
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_MCA_STR_BKPF_ALV-KUR2X.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRX, internal->external for field KUR3X
CALL FUNCTION 'CONVERSION_EXIT_EXCRX_OUTPUT'
  EXPORTING
    input =                      WA_GLE_MCA_STR_BKPF_ALV-KUR3X
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_MCA_STR_BKPF_ALV-KUR3X.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRX, internal->external for field KUR3X
CALL FUNCTION 'CONVERSION_EXIT_EXCRX_OUTPUT'
  EXPORTING
    input =                      WA_GLE_MCA_STR_BKPF_ALV-KUR3X
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_MCA_STR_BKPF_ALV-KUR3X.
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_GLE_MCA_STR_BKPF_ALV_STR, 
RLDNR TYPE STRING,
DOC_NO TYPE STRING,
BELNR TYPE STRING,
DOC_NO TYPE STRING,
BELNR TYPE STRING,
TCODE TYPE STRING,
BLDAT TYPE STRING,
TCODE TYPE STRING,
BLART TYPE STRING,
BLDAT TYPE STRING,
BLART TYPE STRING,
BUKRS TYPE STRING,
BUKRS TYPE STRING,
GJAHR TYPE STRING,
BUDAT TYPE STRING,
GJAHR TYPE STRING,
BUDAT TYPE STRING,
MONAT TYPE STRING,
MONAT TYPE STRING,
WAERS TYPE STRING,
HWAER TYPE STRING,
WAERS TYPE STRING,
HWAE2 TYPE STRING,
HWAER TYPE STRING,
HWAE2 TYPE STRING,
HWAE3 TYPE STRING,
HWAE3 TYPE STRING,
KURSF TYPE STRING,
KURS2 TYPE STRING,
KURSF TYPE STRING,
KURS2 TYPE STRING,
KURS3 TYPE STRING,
KURS3 TYPE STRING,
WWERT TYPE STRING,
WWERT TYPE STRING,
XBLNR TYPE STRING,
BVORG TYPE STRING,
XBLNR TYPE STRING,
BKTXT TYPE STRING,
BVORG TYPE STRING,
BKTXT TYPE STRING,
PARGB TYPE STRING,
AUGLV TYPE STRING,
PARGB TYPE STRING,
AUGLV TYPE STRING,
VBUND TYPE STRING,
STODT TYPE STRING,
VBUND TYPE STRING,
BRNCH TYPE STRING,
STODT TYPE STRING,
BRNCH TYPE STRING,
STGRD TYPE STRING,
AUGTX TYPE STRING,
STGRD TYPE STRING,
AUGTX TYPE STRING,
XPRFG TYPE STRING,
LDGRP TYPE STRING,
XPRFG TYPE STRING,
KURSX TYPE STRING,
LDGRP TYPE STRING,
KUR2X TYPE STRING,
KURSX TYPE STRING,
KUR2X TYPE STRING,
KUR3X TYPE STRING,
KUR3X TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GLE_MCA_STR_BKPF_ALV_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_GLE_MCA_STR_BKPF_ALV_STR-RLDNR sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-DOC_NO sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-BELNR sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-DOC_NO sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-BELNR sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-TCODE sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-BLDAT sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-TCODE sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-BLART sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-BLDAT sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-BLART sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-BUKRS sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-BUKRS sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-GJAHR sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-BUDAT sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-GJAHR sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-BUDAT sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-MONAT sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-MONAT sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-WAERS sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-HWAER sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-WAERS sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-HWAE2 sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-HWAER sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-HWAE2 sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-HWAE3 sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-HWAE3 sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-KURSF sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-KURS2 sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-KURSF sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-KURS2 sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-KURS3 sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-KURS3 sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-WWERT sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-WWERT sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-XBLNR sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-BVORG sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-XBLNR sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-BKTXT sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-BVORG sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-BKTXT sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-PARGB sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-AUGLV sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-PARGB sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-AUGLV sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-VBUND sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-STODT sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-VBUND sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-BRNCH sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-STODT sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-BRNCH sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-STGRD sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-AUGTX sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-STGRD sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-AUGTX sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-XPRFG sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-LDGRP sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-XPRFG sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-KURSX sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-LDGRP sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-KUR2X sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-KURSX sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-KUR2X sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-KUR3X sy-vline 
WA_GLE_MCA_STR_BKPF_ALV_STR-KUR3X sy-vline      INTO ld_text SEPARATED BY SPACE.

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