ABAP Select data from SAP table ROIJNOMI_LDS_IO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIJNOMI_LDS_IO
*  INTO TABLE @DATA(IT_ROIJNOMI_LDS_IO2).
*--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_ROIJNOMI_LDS_IO INDEX 1 INTO DATA(WA_ROIJNOMI_LDS_IO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIJNOMI_LDS_IO>-MANDT = 1.
<ROIJNOMI_LDS_IO>-PEGTYPE = 1.
<ROIJNOMI_LDS_IO>-PEGID = 1.
<ROIJNOMI_LDS_IO>-BRTHSEQ = 1.
<ROIJNOMI_LDS_IO>-NOMTK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIJNOMI_LDS_IO-SHIPLDSEQ, sy-vline,
  WA_ROIJNOMI_LDS_IO-SCHEDMAT, sy-vline,
  WA_ROIJNOMI_LDS_IO-LDMAT, sy-vline,
  WA_ROIJNOMI_LDS_IO-LDQUAN, sy-vline,
  WA_ROIJNOMI_LDS_IO-LDUOM, sy-vline,
  WA_ROIJNOMI_LDS_IO-ACTUALQTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIJNOMI_LDS_IO 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_ROIJNOMI_LDS_IO 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_ROIJNOMI_LDS_IO INTO WA_ROIJNOMI_LDS_IO.


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

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

*Conversion exit MATN1, internal->external for field SCHEDMAT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ROIJNOMI_LDS_IO-SCHEDMAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIJNOMI_LDS_IO-SCHEDMAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field LDMAT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ROIJNOMI_LDS_IO-LDMAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIJNOMI_LDS_IO-LDMAT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field METERVOLUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ROIJNOMI_LDS_IO-METERVOLUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIJNOMI_LDS_IO-METERVOLUOM.
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_ROIJNOMI_LDS_IO_STR, 
MANDT TYPE STRING,
PEGTYPE TYPE STRING,
PEGID TYPE STRING,
BRTHSEQ TYPE STRING,
NOMTK TYPE STRING,
SHIPLDSEQ TYPE STRING,
SCHEDMAT TYPE STRING,
LDMAT TYPE STRING,
LDQUAN TYPE STRING,
LDUOM TYPE STRING,
ACTUALQTY TYPE STRING,
ACTUALUOM TYPE STRING,
BERID TYPE STRING,
TANKID TYPE STRING,
LIGHTLOC TYPE STRING,
LIGHTVESSEL TYPE STRING,
LIGHTNOM TYPE STRING,
LDFRDATE TYPE STRING,
LDFRTIME TYPE STRING,
LDTODATE TYPE STRING,
LDTOTIME TYPE STRING,
LDSYSTID TYPE STRING,
TARGETQTY TYPE STRING,
TARGETQTYUOM TYPE STRING,
METERNO TYPE STRING,
STMETER TYPE STRING,
ENDMETER TYPE STRING,
DIPDATE TYPE STRING,
DIPTIME TYPE STRING,
ENDGAUGEVAL TYPE STRING,
ENDGAUGEUOM TYPE STRING,
VSL_ARRDRAFT TYPE STRING,
VSL_DEPDRAFT TYPE STRING,
DRAFTUOM TYPE STRING,
VSL_TXDEADWGT TYPE STRING,
DEADWGTUOM TYPE STRING,
TICKETNO TYPE STRING,
FLUSHFLAG TYPE STRING,
LDIND TYPE STRING,
LIGHTNOMIT TYPE STRING,
SCHED_TST_FROM TYPE STRING,
SCHED_TST_TO TYPE STRING,
_DATAAGING TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
TNKNR TYPE STRING,
BERNR TYPE STRING,
PBLNR TYPE STRING,
METERCONF TYPE STRING,
UPD_FLAG TYPE STRING,
METERSEQNR TYPE STRING,
METERVOLUOM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIJNOMI_LDS_IO_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_ROIJNOMI_LDS_IO_STR-MANDT sy-vline 
WA_ROIJNOMI_LDS_IO_STR-PEGTYPE sy-vline 
WA_ROIJNOMI_LDS_IO_STR-PEGID sy-vline 
WA_ROIJNOMI_LDS_IO_STR-BRTHSEQ sy-vline 
WA_ROIJNOMI_LDS_IO_STR-NOMTK sy-vline 
WA_ROIJNOMI_LDS_IO_STR-SHIPLDSEQ sy-vline 
WA_ROIJNOMI_LDS_IO_STR-SCHEDMAT sy-vline 
WA_ROIJNOMI_LDS_IO_STR-LDMAT sy-vline 
WA_ROIJNOMI_LDS_IO_STR-LDQUAN sy-vline 
WA_ROIJNOMI_LDS_IO_STR-LDUOM sy-vline 
WA_ROIJNOMI_LDS_IO_STR-ACTUALQTY sy-vline 
WA_ROIJNOMI_LDS_IO_STR-ACTUALUOM sy-vline 
WA_ROIJNOMI_LDS_IO_STR-BERID sy-vline 
WA_ROIJNOMI_LDS_IO_STR-TANKID sy-vline 
WA_ROIJNOMI_LDS_IO_STR-LIGHTLOC sy-vline 
WA_ROIJNOMI_LDS_IO_STR-LIGHTVESSEL sy-vline 
WA_ROIJNOMI_LDS_IO_STR-LIGHTNOM sy-vline 
WA_ROIJNOMI_LDS_IO_STR-LDFRDATE sy-vline 
WA_ROIJNOMI_LDS_IO_STR-LDFRTIME sy-vline 
WA_ROIJNOMI_LDS_IO_STR-LDTODATE sy-vline 
WA_ROIJNOMI_LDS_IO_STR-LDTOTIME sy-vline 
WA_ROIJNOMI_LDS_IO_STR-LDSYSTID sy-vline 
WA_ROIJNOMI_LDS_IO_STR-TARGETQTY sy-vline 
WA_ROIJNOMI_LDS_IO_STR-TARGETQTYUOM sy-vline 
WA_ROIJNOMI_LDS_IO_STR-METERNO sy-vline 
WA_ROIJNOMI_LDS_IO_STR-STMETER sy-vline 
WA_ROIJNOMI_LDS_IO_STR-ENDMETER sy-vline 
WA_ROIJNOMI_LDS_IO_STR-DIPDATE sy-vline 
WA_ROIJNOMI_LDS_IO_STR-DIPTIME sy-vline 
WA_ROIJNOMI_LDS_IO_STR-ENDGAUGEVAL sy-vline 
WA_ROIJNOMI_LDS_IO_STR-ENDGAUGEUOM sy-vline 
WA_ROIJNOMI_LDS_IO_STR-VSL_ARRDRAFT sy-vline 
WA_ROIJNOMI_LDS_IO_STR-VSL_DEPDRAFT sy-vline 
WA_ROIJNOMI_LDS_IO_STR-DRAFTUOM sy-vline 
WA_ROIJNOMI_LDS_IO_STR-VSL_TXDEADWGT sy-vline 
WA_ROIJNOMI_LDS_IO_STR-DEADWGTUOM sy-vline 
WA_ROIJNOMI_LDS_IO_STR-TICKETNO sy-vline 
WA_ROIJNOMI_LDS_IO_STR-FLUSHFLAG sy-vline 
WA_ROIJNOMI_LDS_IO_STR-LDIND sy-vline 
WA_ROIJNOMI_LDS_IO_STR-LIGHTNOMIT sy-vline 
WA_ROIJNOMI_LDS_IO_STR-SCHED_TST_FROM sy-vline 
WA_ROIJNOMI_LDS_IO_STR-SCHED_TST_TO sy-vline 
WA_ROIJNOMI_LDS_IO_STR-_DATAAGING sy-vline 
WA_ROIJNOMI_LDS_IO_STR-WERKS sy-vline 
WA_ROIJNOMI_LDS_IO_STR-LGORT sy-vline 
WA_ROIJNOMI_LDS_IO_STR-TNKNR sy-vline 
WA_ROIJNOMI_LDS_IO_STR-BERNR sy-vline 
WA_ROIJNOMI_LDS_IO_STR-PBLNR sy-vline 
WA_ROIJNOMI_LDS_IO_STR-METERCONF sy-vline 
WA_ROIJNOMI_LDS_IO_STR-UPD_FLAG sy-vline 
WA_ROIJNOMI_LDS_IO_STR-METERSEQNR sy-vline 
WA_ROIJNOMI_LDS_IO_STR-METERVOLUOM sy-vline      INTO ld_text SEPARATED BY SPACE.

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