ABAP Select data from SAP table OIJ_RDHEAD_N into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIJ_RDHEAD_N
*  INTO TABLE @DATA(IT_OIJ_RDHEAD_N2).
*--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_OIJ_RDHEAD_N INDEX 1 INTO DATA(WA_OIJ_RDHEAD_N2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIJ_RDHEAD_N>-MANDT = 1.
<OIJ_RDHEAD_N>-TSYST = 1.
<OIJ_RDHEAD_N>-LOCID = 1.
<OIJ_RDHEAD_N>-MATNR = 1.
<OIJ_RDHEAD_N>-CHARG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIJ_RDHEAD_N-SOCNR, sy-vline,
  WA_OIJ_RDHEAD_N-SPTYPE, sy-vline,
  WA_OIJ_RDHEAD_N-RDUOM, sy-vline,
  WA_OIJ_RDHEAD_N-RDCONV, sy-vline,
  WA_OIJ_RDHEAD_N-PERIOD, sy-vline,
  WA_OIJ_RDHEAD_N-PAST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIJ_RDHEAD_N 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_OIJ_RDHEAD_N 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_OIJ_RDHEAD_N INTO WA_OIJ_RDHEAD_N.


*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 MATN5, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_OIJ_RDHEAD_N-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ_RDHEAD_N-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit MATN1, internal->external for field MATNR_LONG
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_OIJ_RDHEAD_N-MATNR_LONG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ_RDHEAD_N-MATNR_LONG.
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_OIJ_RDHEAD_N_STR, 
MANDT TYPE STRING,
TSYST TYPE STRING,
LOCID TYPE STRING,
MATNR TYPE STRING,
CHARG TYPE STRING,
SOCNR TYPE STRING,
SPTYPE TYPE STRING,
RDUOM TYPE STRING,
RDCONV TYPE STRING,
PERIOD TYPE STRING,
PAST TYPE STRING,
TOLPCT TYPE STRING,
TOLABS TYPE STRING,
PASTDATA TYPE STRING,
PHY_INV_FLG TYPE STRING,
PHY_INV TYPE STRING,
PHY_DATE TYPE STRING,
FCPAST TYPE STRING,
FCOFFSET TYPE STRING,
FCTYPE TYPE STRING,
PHYTMS TYPE STRING,
SRCTYPE TYPE STRING,
FCHORIZ TYPE STRING,
RVP TYPE STRING,
FCGEN TYPE STRING,
FCMAN TYPE STRING,
OINV TYPE STRING,
ALTOI TYPE STRING,
ALTOQ TYPE STRING,
ERDAT TYPE STRING,
ERZEIT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AEZEIT TYPE STRING,
AENAM TYPE STRING,
BLOIND TYPE STRING,
DELIND TYPE STRING,
TKTSELECT TYPE STRING,
PLTYP TYPE STRING,
CALFLG TYPE STRING,
PLCAL TYPE STRING,
COVER TYPE STRING,
PLHOZ TYPE STRING,
DATUOM TYPE STRING,
PTSYST TYPE STRING,
PLUOM TYPE STRING,
CYCLE TYPE STRING,
CYCUOM TYPE STRING,
MAXLOT TYPE STRING,
MINLOT TYPE STRING,
INCLOT TYPE STRING,
INVUOM TYPE STRING,
MAXINV TYPE STRING,
TARGET TYPE STRING,
REORDER TYPE STRING,
SAFETY TYPE STRING,
UNPUMP TYPE STRING,
MININV TYPE STRING,
STSYST TYPE STRING,
SLOCID TYPE STRING,
SPART TYPE STRING,
SPOBJ TYPE STRING,
OFFPER TYPE STRING,
OFFUOM TYPE STRING,
RADIONOSRC TYPE STRING,
RADIOTSSRC TYPE STRING,
RADIOLOCSC TYPE STRING,
PLANAMPEL TYPE STRING,
PLANFLAG TYPE STRING,
SCFLAG TYPE STRING,
SERVICE TYPE STRING,
COVPROF TYPE STRING,
CALPROF TYPE STRING,
FACTORY TYPE STRING,
SFTTYPE TYPE STRING,
HISTHOZ TYPE STRING,
TSERVICE TYPE STRING,
TCOVPROF TYPE STRING,
TCALPROF TYPE STRING,
TFACTORY TYPE STRING,
TGTTYPE TYPE STRING,
THISTHOZ TYPE STRING,
FCCAL TYPE STRING,
FCPRF TYPE STRING,
TANKUPD TYPE STRING,
SFTLVL TYPE STRING,
HRLVL TYPE STRING,
SFTTDIND TYPE STRING,
TGTTDIND TYPE STRING,
PPTYP TYPE STRING,
BALANCE TYPE STRING,
REPDAT TYPE STRING,
ACTGT TYPE STRING,
MATNR_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIJ_RDHEAD_N_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_OIJ_RDHEAD_N_STR-MANDT sy-vline 
WA_OIJ_RDHEAD_N_STR-TSYST sy-vline 
WA_OIJ_RDHEAD_N_STR-LOCID sy-vline 
WA_OIJ_RDHEAD_N_STR-MATNR sy-vline 
WA_OIJ_RDHEAD_N_STR-CHARG sy-vline 
WA_OIJ_RDHEAD_N_STR-SOCNR sy-vline 
WA_OIJ_RDHEAD_N_STR-SPTYPE sy-vline 
WA_OIJ_RDHEAD_N_STR-RDUOM sy-vline 
WA_OIJ_RDHEAD_N_STR-RDCONV sy-vline 
WA_OIJ_RDHEAD_N_STR-PERIOD sy-vline 
WA_OIJ_RDHEAD_N_STR-PAST sy-vline 
WA_OIJ_RDHEAD_N_STR-TOLPCT sy-vline 
WA_OIJ_RDHEAD_N_STR-TOLABS sy-vline 
WA_OIJ_RDHEAD_N_STR-PASTDATA sy-vline 
WA_OIJ_RDHEAD_N_STR-PHY_INV_FLG sy-vline 
WA_OIJ_RDHEAD_N_STR-PHY_INV sy-vline 
WA_OIJ_RDHEAD_N_STR-PHY_DATE sy-vline 
WA_OIJ_RDHEAD_N_STR-FCPAST sy-vline 
WA_OIJ_RDHEAD_N_STR-FCOFFSET sy-vline 
WA_OIJ_RDHEAD_N_STR-FCTYPE sy-vline 
WA_OIJ_RDHEAD_N_STR-PHYTMS sy-vline 
WA_OIJ_RDHEAD_N_STR-SRCTYPE sy-vline 
WA_OIJ_RDHEAD_N_STR-FCHORIZ sy-vline 
WA_OIJ_RDHEAD_N_STR-RVP sy-vline 
WA_OIJ_RDHEAD_N_STR-FCGEN sy-vline 
WA_OIJ_RDHEAD_N_STR-FCMAN sy-vline 
WA_OIJ_RDHEAD_N_STR-OINV sy-vline 
WA_OIJ_RDHEAD_N_STR-ALTOI sy-vline 
WA_OIJ_RDHEAD_N_STR-ALTOQ sy-vline 
WA_OIJ_RDHEAD_N_STR-ERDAT sy-vline 
WA_OIJ_RDHEAD_N_STR-ERZEIT sy-vline 
WA_OIJ_RDHEAD_N_STR-ERNAM sy-vline 
WA_OIJ_RDHEAD_N_STR-AEDAT sy-vline 
WA_OIJ_RDHEAD_N_STR-AEZEIT sy-vline 
WA_OIJ_RDHEAD_N_STR-AENAM sy-vline 
WA_OIJ_RDHEAD_N_STR-BLOIND sy-vline 
WA_OIJ_RDHEAD_N_STR-DELIND sy-vline 
WA_OIJ_RDHEAD_N_STR-TKTSELECT sy-vline 
WA_OIJ_RDHEAD_N_STR-PLTYP sy-vline 
WA_OIJ_RDHEAD_N_STR-CALFLG sy-vline 
WA_OIJ_RDHEAD_N_STR-PLCAL sy-vline 
WA_OIJ_RDHEAD_N_STR-COVER sy-vline 
WA_OIJ_RDHEAD_N_STR-PLHOZ sy-vline 
WA_OIJ_RDHEAD_N_STR-DATUOM sy-vline 
WA_OIJ_RDHEAD_N_STR-PTSYST sy-vline 
WA_OIJ_RDHEAD_N_STR-PLUOM sy-vline 
WA_OIJ_RDHEAD_N_STR-CYCLE sy-vline 
WA_OIJ_RDHEAD_N_STR-CYCUOM sy-vline 
WA_OIJ_RDHEAD_N_STR-MAXLOT sy-vline 
WA_OIJ_RDHEAD_N_STR-MINLOT sy-vline 
WA_OIJ_RDHEAD_N_STR-INCLOT sy-vline 
WA_OIJ_RDHEAD_N_STR-INVUOM sy-vline 
WA_OIJ_RDHEAD_N_STR-MAXINV sy-vline 
WA_OIJ_RDHEAD_N_STR-TARGET sy-vline 
WA_OIJ_RDHEAD_N_STR-REORDER sy-vline 
WA_OIJ_RDHEAD_N_STR-SAFETY sy-vline 
WA_OIJ_RDHEAD_N_STR-UNPUMP sy-vline 
WA_OIJ_RDHEAD_N_STR-MININV sy-vline 
WA_OIJ_RDHEAD_N_STR-STSYST sy-vline 
WA_OIJ_RDHEAD_N_STR-SLOCID sy-vline 
WA_OIJ_RDHEAD_N_STR-SPART sy-vline 
WA_OIJ_RDHEAD_N_STR-SPOBJ sy-vline 
WA_OIJ_RDHEAD_N_STR-OFFPER sy-vline 
WA_OIJ_RDHEAD_N_STR-OFFUOM sy-vline 
WA_OIJ_RDHEAD_N_STR-RADIONOSRC sy-vline 
WA_OIJ_RDHEAD_N_STR-RADIOTSSRC sy-vline 
WA_OIJ_RDHEAD_N_STR-RADIOLOCSC sy-vline 
WA_OIJ_RDHEAD_N_STR-PLANAMPEL sy-vline 
WA_OIJ_RDHEAD_N_STR-PLANFLAG sy-vline 
WA_OIJ_RDHEAD_N_STR-SCFLAG sy-vline 
WA_OIJ_RDHEAD_N_STR-SERVICE sy-vline 
WA_OIJ_RDHEAD_N_STR-COVPROF sy-vline 
WA_OIJ_RDHEAD_N_STR-CALPROF sy-vline 
WA_OIJ_RDHEAD_N_STR-FACTORY sy-vline 
WA_OIJ_RDHEAD_N_STR-SFTTYPE sy-vline 
WA_OIJ_RDHEAD_N_STR-HISTHOZ sy-vline 
WA_OIJ_RDHEAD_N_STR-TSERVICE sy-vline 
WA_OIJ_RDHEAD_N_STR-TCOVPROF sy-vline 
WA_OIJ_RDHEAD_N_STR-TCALPROF sy-vline 
WA_OIJ_RDHEAD_N_STR-TFACTORY sy-vline 
WA_OIJ_RDHEAD_N_STR-TGTTYPE sy-vline 
WA_OIJ_RDHEAD_N_STR-THISTHOZ sy-vline 
WA_OIJ_RDHEAD_N_STR-FCCAL sy-vline 
WA_OIJ_RDHEAD_N_STR-FCPRF sy-vline 
WA_OIJ_RDHEAD_N_STR-TANKUPD sy-vline 
WA_OIJ_RDHEAD_N_STR-SFTLVL sy-vline 
WA_OIJ_RDHEAD_N_STR-HRLVL sy-vline 
WA_OIJ_RDHEAD_N_STR-SFTTDIND sy-vline 
WA_OIJ_RDHEAD_N_STR-TGTTDIND sy-vline 
WA_OIJ_RDHEAD_N_STR-PPTYP sy-vline 
WA_OIJ_RDHEAD_N_STR-BALANCE sy-vline 
WA_OIJ_RDHEAD_N_STR-REPDAT sy-vline 
WA_OIJ_RDHEAD_N_STR-ACTGT sy-vline 
WA_OIJ_RDHEAD_N_STR-MATNR_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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