ABAP Select data from SAP table OIUP_SB_ENTWC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIUP_SB_ENTWC
*  INTO TABLE @DATA(IT_OIUP_SB_ENTWC2).
*--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_OIUP_SB_ENTWC INDEX 1 INTO DATA(WA_OIUP_SB_ENTWC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIUP_SB_ENTWC>-MANDT = 1.
<OIUP_SB_ENTWC>-PDM_GUID = 1.
<OIUP_SB_ENTWC>-DN_NO = 1.
<OIUP_SB_ENTWC>-MATNR = 1.
<OIUP_SB_ENTWC>-WL_NO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIUP_SB_ENTWC-WC_NO, sy-vline,
  WA_OIUP_SB_ENTWC-BUKRS, sy-vline,
  WA_OIUP_SB_ENTWC-VNAME, sy-vline,
  WA_OIUP_SB_ENTWC-DOI_NO, sy-vline,
  WA_OIUP_SB_ENTWC-SA_DT, sy-vline,
  WA_OIUP_SB_ENTWC-FREQ_CD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIUP_SB_ENTWC 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_OIUP_SB_ENTWC 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_OIUP_SB_ENTWC INTO WA_OIUP_SB_ENTWC.


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

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

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

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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field ENERGY_U
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OIUP_SB_ENTWC-ENERGY_U
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIUP_SB_ENTWC-ENERGY_U.
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_OIUP_SB_ENTWC_STR, 
MANDT TYPE STRING,
PDM_GUID TYPE STRING,
DN_NO TYPE STRING,
MATNR TYPE STRING,
WL_NO TYPE STRING,
WC_NO TYPE STRING,
BUKRS TYPE STRING,
VNAME TYPE STRING,
DOI_NO TYPE STRING,
SA_DT TYPE STRING,
FREQ_CD TYPE STRING,
VT_CD TYPE STRING,
OWN_NO TYPE STRING,
OWN_INT_TYPE_CD TYPE STRING,
OWN_ISQ_NO TYPE STRING,
MK_REP_NO TYPE STRING,
MK_REP_ISQ_NO TYPE STRING,
VOL_U TYPE STRING,
ENTL_VOL TYPE STRING,
ADJ_ENTL_VOL TYPE STRING,
ENERGY_U TYPE STRING,
ENTL_ENERGY TYPE STRING,
ADJ_ENTL_ENERGY TYPE STRING,
GRI_PC TYPE STRING,
ADJ_GRI_PC TYPE STRING,
OIU_CRUSER TYPE STRING,
OIU_TIMESTAMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIUP_SB_ENTWC_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_OIUP_SB_ENTWC_STR-MANDT sy-vline 
WA_OIUP_SB_ENTWC_STR-PDM_GUID sy-vline 
WA_OIUP_SB_ENTWC_STR-DN_NO sy-vline 
WA_OIUP_SB_ENTWC_STR-MATNR sy-vline 
WA_OIUP_SB_ENTWC_STR-WL_NO sy-vline 
WA_OIUP_SB_ENTWC_STR-WC_NO sy-vline 
WA_OIUP_SB_ENTWC_STR-BUKRS sy-vline 
WA_OIUP_SB_ENTWC_STR-VNAME sy-vline 
WA_OIUP_SB_ENTWC_STR-DOI_NO sy-vline 
WA_OIUP_SB_ENTWC_STR-SA_DT sy-vline 
WA_OIUP_SB_ENTWC_STR-FREQ_CD sy-vline 
WA_OIUP_SB_ENTWC_STR-VT_CD sy-vline 
WA_OIUP_SB_ENTWC_STR-OWN_NO sy-vline 
WA_OIUP_SB_ENTWC_STR-OWN_INT_TYPE_CD sy-vline 
WA_OIUP_SB_ENTWC_STR-OWN_ISQ_NO sy-vline 
WA_OIUP_SB_ENTWC_STR-MK_REP_NO sy-vline 
WA_OIUP_SB_ENTWC_STR-MK_REP_ISQ_NO sy-vline 
WA_OIUP_SB_ENTWC_STR-VOL_U sy-vline 
WA_OIUP_SB_ENTWC_STR-ENTL_VOL sy-vline 
WA_OIUP_SB_ENTWC_STR-ADJ_ENTL_VOL sy-vline 
WA_OIUP_SB_ENTWC_STR-ENERGY_U sy-vline 
WA_OIUP_SB_ENTWC_STR-ENTL_ENERGY sy-vline 
WA_OIUP_SB_ENTWC_STR-ADJ_ENTL_ENERGY sy-vline 
WA_OIUP_SB_ENTWC_STR-GRI_PC sy-vline 
WA_OIUP_SB_ENTWC_STR-ADJ_GRI_PC sy-vline 
WA_OIUP_SB_ENTWC_STR-OIU_CRUSER sy-vline 
WA_OIUP_SB_ENTWC_STR-OIU_TIMESTAMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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