ABAP Select data from SAP table /SAPCE/IUUA_REHD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPCE/IUUA_REHD 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 /SAPCE/IUUA_REHD. 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 /SAPCE/IUUA_REHD 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_/SAPCE/IUUA_REHD TYPE STANDARD TABLE OF /SAPCE/IUUA_REHD,
      WA_/SAPCE/IUUA_REHD TYPE /SAPCE/IUUA_REHD,
      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: </SAPCE/IUUA_REHD> TYPE /SAPCE/IUUA_REHD.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPCE/IUUA_REHD
  INTO TABLE IT_/SAPCE/IUUA_REHD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPCE/IUUA_REHD
*  INTO TABLE @DATA(IT_/SAPCE/IUUA_REHD2).
*--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_/SAPCE/IUUA_REHD INDEX 1 INTO DATA(WA_/SAPCE/IUUA_REHD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPCE/IUUA_REHD ASSIGNING </SAPCE/IUUA_REHD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPCE/IUUA_REHD>-MANDT = 1.
</SAPCE/IUUA_REHD>-GPART = 1.
</SAPCE/IUUA_REHD>-VERTRAG = 1.
</SAPCE/IUUA_REHD>-ANLAGE = 1.
</SAPCE/IUUA_REHD>-GERAET = 1.

ENDLOOP.

LOOP AT IT_/SAPCE/IUUA_REHD INTO WA_/SAPCE/IUUA_REHD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPCE/IUUA_REHD-ZWNUMMER, sy-vline,
  WA_/SAPCE/IUUA_REHD-EQUNR, sy-vline,
  WA_/SAPCE/IUUA_REHD-MATNR, sy-vline,
  WA_/SAPCE/IUUA_REHD-ZWTYP, sy-vline,
  WA_/SAPCE/IUUA_REHD-MASSBILL, sy-vline,
  WA_/SAPCE/IUUA_REHD-MASSBTECH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPCE/IUUA_REHD 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_/SAPCE/IUUA_REHD 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_/SAPCE/IUUA_REHD INTO WA_/SAPCE/IUUA_REHD.


*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 GPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCE/IUUA_REHD-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCE/IUUA_REHD-GPART.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GERNR, internal->external for field GERAET
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCE/IUUA_REHD-GERAET
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCE/IUUA_REHD-GERAET.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit LUNIT, internal->external for field MASSBTECH
CALL FUNCTION 'CONVERSION_EXIT_LUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCE/IUUA_REHD-MASSBTECH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCE/IUUA_REHD-MASSBTECH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCE/IUUA_REHD-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCE/IUUA_REHD-GJAHR.
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_/SAPCE/IUUA_REHD_STR, 
MANDT TYPE STRING,
GPART TYPE STRING,
VERTRAG TYPE STRING,
ANLAGE TYPE STRING,
GERAET TYPE STRING,
ZWNUMMER TYPE STRING,
EQUNR TYPE STRING,
MATNR TYPE STRING,
ZWTYP TYPE STRING,
MASSBILL TYPE STRING,
MASSBTECH TYPE STRING,
LOGIKZW TYPE STRING,
AB TYPE STRING,
BIS TYPE STRING,
GJAHR TYPE STRING,
/SAPCE/PERVERB01 TYPE STRING,
/SAPCE/PERVERB02 TYPE STRING,
/SAPCE/PERVERB03 TYPE STRING,
/SAPCE/PERVERB04 TYPE STRING,
/SAPCE/PERVERB05 TYPE STRING,
/SAPCE/PERVERB06 TYPE STRING,
/SAPCE/PERVERB07 TYPE STRING,
/SAPCE/PERVERB08 TYPE STRING,
/SAPCE/PERVERB09 TYPE STRING,
/SAPCE/PERVERB10 TYPE STRING,
/SAPCE/PERVERB11 TYPE STRING,
/SAPCE/PERVERB12 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPCE/IUUA_REHD_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_/SAPCE/IUUA_REHD_STR-MANDT sy-vline 
WA_/SAPCE/IUUA_REHD_STR-GPART sy-vline 
WA_/SAPCE/IUUA_REHD_STR-VERTRAG sy-vline 
WA_/SAPCE/IUUA_REHD_STR-ANLAGE sy-vline 
WA_/SAPCE/IUUA_REHD_STR-GERAET sy-vline 
WA_/SAPCE/IUUA_REHD_STR-ZWNUMMER sy-vline 
WA_/SAPCE/IUUA_REHD_STR-EQUNR sy-vline 
WA_/SAPCE/IUUA_REHD_STR-MATNR sy-vline 
WA_/SAPCE/IUUA_REHD_STR-ZWTYP sy-vline 
WA_/SAPCE/IUUA_REHD_STR-MASSBILL sy-vline 
WA_/SAPCE/IUUA_REHD_STR-MASSBTECH sy-vline 
WA_/SAPCE/IUUA_REHD_STR-LOGIKZW sy-vline 
WA_/SAPCE/IUUA_REHD_STR-AB sy-vline 
WA_/SAPCE/IUUA_REHD_STR-BIS sy-vline 
WA_/SAPCE/IUUA_REHD_STR-GJAHR sy-vline 
WA_/SAPCE/IUUA_REHD_STR-/SAPCE/PERVERB01 sy-vline 
WA_/SAPCE/IUUA_REHD_STR-/SAPCE/PERVERB02 sy-vline 
WA_/SAPCE/IUUA_REHD_STR-/SAPCE/PERVERB03 sy-vline 
WA_/SAPCE/IUUA_REHD_STR-/SAPCE/PERVERB04 sy-vline 
WA_/SAPCE/IUUA_REHD_STR-/SAPCE/PERVERB05 sy-vline 
WA_/SAPCE/IUUA_REHD_STR-/SAPCE/PERVERB06 sy-vline 
WA_/SAPCE/IUUA_REHD_STR-/SAPCE/PERVERB07 sy-vline 
WA_/SAPCE/IUUA_REHD_STR-/SAPCE/PERVERB08 sy-vline 
WA_/SAPCE/IUUA_REHD_STR-/SAPCE/PERVERB09 sy-vline 
WA_/SAPCE/IUUA_REHD_STR-/SAPCE/PERVERB10 sy-vline 
WA_/SAPCE/IUUA_REHD_STR-/SAPCE/PERVERB11 sy-vline 
WA_/SAPCE/IUUA_REHD_STR-/SAPCE/PERVERB12 sy-vline      INTO ld_text SEPARATED BY SPACE.

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