ABAP Select data from SAP table /SCWM/S_WIP_EGR_SEL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_WIP_EGR_SEL
*  INTO TABLE @DATA(IT_/SCWM/S_WIP_EGR_SEL2).
*--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_/SCWM/S_WIP_EGR_SEL INDEX 1 INTO DATA(WA_/SCWM/S_WIP_EGR_SEL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_WIP_EGR_SEL>-LGNUM = 1.
</SCWM/S_WIP_EGR_SEL>-DOCNO = 1.
</SCWM/S_WIP_EGR_SEL>-DOCTYPE = 1.
</SCWM/S_WIP_EGR_SEL>-SHIP_FROM = 1.
</SCWM/S_WIP_EGR_SEL>-TDELIVERY_TST = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_WIP_EGR_SEL-TDELIVERY_DATE, sy-vline,
  WA_/SCWM/S_WIP_EGR_SEL-TDELIVERY_TIME, sy-vline,
  WA_/SCWM/S_WIP_EGR_SEL-CREATED_BY, sy-vline,
  WA_/SCWM/S_WIP_EGR_SEL-CREATED_TST, sy-vline,
  WA_/SCWM/S_WIP_EGR_SEL-CREATED_ON, sy-vline,
  WA_/SCWM/S_WIP_EGR_SEL-CREATED_AT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_WIP_EGR_SEL 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_/SCWM/S_WIP_EGR_SEL 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_/SCWM/S_WIP_EGR_SEL INTO WA_/SCWM/S_WIP_EGR_SEL.


*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 DOCNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_WIP_EGR_SEL-DOCNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_WIP_EGR_SEL-DOCNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit BPMAP, internal->external for field SHIP_FROM
CALL FUNCTION 'CONVERSION_EXIT_BPMAP_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_WIP_EGR_SEL-SHIP_FROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_WIP_EGR_SEL-SHIP_FROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CREATED_TST
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_WIP_EGR_SEL-CREATED_TST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_WIP_EGR_SEL-CREATED_TST.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPH0, internal->external for field ITEMNO
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_WIP_EGR_SEL-ITEMNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_WIP_EGR_SEL-ITEMNO.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit BPMAP, internal->external for field STOCK_OWNER
CALL FUNCTION 'CONVERSION_EXIT_BPMAP_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_WIP_EGR_SEL-STOCK_OWNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_WIP_EGR_SEL-STOCK_OWNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field /SCWM/PSA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_WIP_EGR_SEL-/SCWM/PSA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_WIP_EGR_SEL-/SCWM/PSA.
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_/SCWM/S_WIP_EGR_SEL_STR, 
LGNUM TYPE STRING,
DOCNO TYPE STRING,
DOCTYPE TYPE STRING,
SHIP_FROM TYPE STRING,
TDELIVERY_TST TYPE STRING,
TDELIVERY_DATE TYPE STRING,
TDELIVERY_TIME TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_TST TYPE STRING,
CREATED_ON TYPE STRING,
CREATED_AT TYPE STRING,
PURCHASE_ORDER TYPE STRING,
MFG_ORDER TYPE STRING,
GR_OFFICE TYPE STRING,
ITEMNO TYPE STRING,
ITEMTYPE TYPE STRING,
PRODUCTNO TYPE STRING,
BATCHNO TYPE STRING,
PRODUCT_VENDOR TYPE STRING,
BATCHNO_VENDOR TYPE STRING,
ENTITLED TYPE STRING,
STOCK_OWNER TYPE STRING,
/SCWM/PSA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_WIP_EGR_SEL_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_/SCWM/S_WIP_EGR_SEL_STR-LGNUM sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-DOCNO sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-DOCTYPE sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-SHIP_FROM sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-TDELIVERY_TST sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-TDELIVERY_DATE sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-TDELIVERY_TIME sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-CREATED_BY sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-CREATED_TST sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-CREATED_ON sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-CREATED_AT sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-PURCHASE_ORDER sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-MFG_ORDER sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-GR_OFFICE sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-ITEMNO sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-ITEMTYPE sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-PRODUCTNO sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-BATCHNO sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-PRODUCT_VENDOR sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-BATCHNO_VENDOR sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-ENTITLED sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-STOCK_OWNER sy-vline 
WA_/SCWM/S_WIP_EGR_SEL_STR-/SCWM/PSA sy-vline      INTO ld_text SEPARATED BY SPACE.

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