ABAP Select data from SAP table OIJ06_S_REG_INV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OIJ06_S_REG_INV 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 OIJ06_S_REG_INV. 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 OIJ06_S_REG_INV 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_OIJ06_S_REG_INV TYPE STANDARD TABLE OF OIJ06_S_REG_INV,
      WA_OIJ06_S_REG_INV TYPE OIJ06_S_REG_INV,
      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: <OIJ06_S_REG_INV> TYPE OIJ06_S_REG_INV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_OIJ06_S_REG_INV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM OIJ06_S_REG_INV
  INTO TABLE IT_OIJ06_S_REG_INV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIJ06_S_REG_INV
*  INTO TABLE @DATA(IT_OIJ06_S_REG_INV2).
*--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_OIJ06_S_REG_INV INDEX 1 INTO DATA(WA_OIJ06_S_REG_INV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_OIJ06_S_REG_INV ASSIGNING <OIJ06_S_REG_INV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIJ06_S_REG_INV>-LOCID = 1.
<OIJ06_S_REG_INV>-MATNR = 1.
<OIJ06_S_REG_INV>-BWTAR = 1.
<OIJ06_S_REG_INV>-DATUM = 1.
<OIJ06_S_REG_INV>-UOM = 1.

ENDLOOP.

LOOP AT IT_OIJ06_S_REG_INV INTO WA_OIJ06_S_REG_INV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIJ06_S_REG_INV-HORIZON, sy-vline,
  WA_OIJ06_S_REG_INV-INVTYP, sy-vline,
  WA_OIJ06_S_REG_INV-STATUS, sy-vline,
  WA_OIJ06_S_REG_INV-INV_1, sy-vline,
  WA_OIJ06_S_REG_INV-INV_2, sy-vline,
  WA_OIJ06_S_REG_INV-INV_3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIJ06_S_REG_INV 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_OIJ06_S_REG_INV 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_OIJ06_S_REG_INV INTO WA_OIJ06_S_REG_INV.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_OIJ06_S_REG_INV-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ06_S_REG_INV-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OIJ06_S_REG_INV-UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ06_S_REG_INV-UOM.
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_OIJ06_S_REG_INV_STR, 
LOCID TYPE STRING,
MATNR TYPE STRING,
BWTAR TYPE STRING,
DATUM TYPE STRING,
UOM TYPE STRING,
HORIZON TYPE STRING,
INVTYP TYPE STRING,
STATUS TYPE STRING,
INV_1 TYPE STRING,
INV_2 TYPE STRING,
INV_3 TYPE STRING,
INV_4 TYPE STRING,
INV_5 TYPE STRING,
INV_6 TYPE STRING,
INV_7 TYPE STRING,
INV_8 TYPE STRING,
INV_9 TYPE STRING,
INV_10 TYPE STRING,
INV_11 TYPE STRING,
INV_12 TYPE STRING,
INV_13 TYPE STRING,
INV_14 TYPE STRING,
INV_15 TYPE STRING,
INV_16 TYPE STRING,
INV_17 TYPE STRING,
INV_18 TYPE STRING,
INV_19 TYPE STRING,
INV_20 TYPE STRING,
INV_21 TYPE STRING,
INV_22 TYPE STRING,
INV_23 TYPE STRING,
INV_24 TYPE STRING,
INV_25 TYPE STRING,
INV_26 TYPE STRING,
INV_27 TYPE STRING,
INV_28 TYPE STRING,
INV_29 TYPE STRING,
INV_30 TYPE STRING,
INV_31 TYPE STRING,
INV_ICON_1 TYPE STRING,
INV_ICON_2 TYPE STRING,
INV_ICON_3 TYPE STRING,
INV_ICON_4 TYPE STRING,
INV_ICON_5 TYPE STRING,
INV_ICON_6 TYPE STRING,
INV_ICON_7 TYPE STRING,
INV_ICON_8 TYPE STRING,
INV_ICON_9 TYPE STRING,
INV_ICON_10 TYPE STRING,
INV_ICON_11 TYPE STRING,
INV_ICON_12 TYPE STRING,
INV_ICON_13 TYPE STRING,
INV_ICON_14 TYPE STRING,
INV_ICON_15 TYPE STRING,
INV_ICON_16 TYPE STRING,
INV_ICON_17 TYPE STRING,
INV_ICON_18 TYPE STRING,
INV_ICON_19 TYPE STRING,
INV_ICON_20 TYPE STRING,
INV_ICON_21 TYPE STRING,
INV_ICON_22 TYPE STRING,
INV_ICON_23 TYPE STRING,
INV_ICON_24 TYPE STRING,
INV_ICON_25 TYPE STRING,
INV_ICON_26 TYPE STRING,
INV_ICON_27 TYPE STRING,
INV_ICON_28 TYPE STRING,
INV_ICON_29 TYPE STRING,
INV_ICON_30 TYPE STRING,
INV_ICON_31 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIJ06_S_REG_INV_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_OIJ06_S_REG_INV_STR-LOCID sy-vline 
WA_OIJ06_S_REG_INV_STR-MATNR sy-vline 
WA_OIJ06_S_REG_INV_STR-BWTAR sy-vline 
WA_OIJ06_S_REG_INV_STR-DATUM sy-vline 
WA_OIJ06_S_REG_INV_STR-UOM sy-vline 
WA_OIJ06_S_REG_INV_STR-HORIZON sy-vline 
WA_OIJ06_S_REG_INV_STR-INVTYP sy-vline 
WA_OIJ06_S_REG_INV_STR-STATUS sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_1 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_2 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_3 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_4 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_5 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_6 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_7 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_8 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_9 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_10 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_11 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_12 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_13 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_14 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_15 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_16 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_17 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_18 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_19 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_20 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_21 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_22 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_23 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_24 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_25 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_26 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_27 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_28 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_29 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_30 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_31 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_1 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_2 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_3 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_4 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_5 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_6 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_7 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_8 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_9 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_10 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_11 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_12 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_13 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_14 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_15 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_16 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_17 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_18 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_19 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_20 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_21 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_22 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_23 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_24 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_25 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_26 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_27 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_28 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_29 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_30 sy-vline 
WA_OIJ06_S_REG_INV_STR-INV_ICON_31 sy-vline      INTO ld_text SEPARATED BY SPACE.

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