ABAP Select data from SAP table /SCWM/S_ERP_MFG_COMP 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_ERP_MFG_COMP 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_ERP_MFG_COMP. 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_ERP_MFG_COMP 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_ERP_MFG_COMP TYPE STANDARD TABLE OF /SCWM/S_ERP_MFG_COMP,
      WA_/SCWM/S_ERP_MFG_COMP TYPE /SCWM/S_ERP_MFG_COMP,
      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_ERP_MFG_COMP> TYPE /SCWM/S_ERP_MFG_COMP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_ERP_MFG_COMP
*  INTO TABLE @DATA(IT_/SCWM/S_ERP_MFG_COMP2).
*--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_ERP_MFG_COMP INDEX 1 INTO DATA(WA_/SCWM/S_ERP_MFG_COMP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_ERP_MFG_COMP>-RESERVATION_NUMBER = 1.
</SCWM/S_ERP_MFG_COMP>-RESERVATION_ITEM = 1.
</SCWM/S_ERP_MFG_COMP>-RESERVATION_TYPE = 1.
</SCWM/S_ERP_MFG_COMP>-DELETION_INDICATOR = 1.
</SCWM/S_ERP_MFG_COMP>-MATERIAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_ERP_MFG_COMP-BATCH, sy-vline,
  WA_/SCWM/S_ERP_MFG_COMP-PLANT, sy-vline,
  WA_/SCWM/S_ERP_MFG_COMP-STORAGE_LOCATION, sy-vline,
  WA_/SCWM/S_ERP_MFG_COMP-SUPPLY_AREA, sy-vline,
  WA_/SCWM/S_ERP_MFG_COMP-SPECIAL_STOCK, sy-vline,
  WA_/SCWM/S_ERP_MFG_COMP-SALES_ORD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_ERP_MFG_COMP 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_ERP_MFG_COMP 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_ERP_MFG_COMP INTO WA_/SCWM/S_ERP_MFG_COMP.


*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 MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_ERP_MFG_COMP-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_ERP_MFG_COMP-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ABPSN, internal->external for field WBS_ELEM
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_ERP_MFG_COMP-WBS_ELEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_ERP_MFG_COMP-WBS_ELEM.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit NUMCV, internal->external for field OPERATION
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_ERP_MFG_COMP-OPERATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_ERP_MFG_COMP-OPERATION.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field MATERIAL_LONG
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_ERP_MFG_COMP-MATERIAL_LONG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_ERP_MFG_COMP-MATERIAL_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_/SCWM/S_ERP_MFG_COMP_STR, 
RESERVATION_NUMBER TYPE STRING,
RESERVATION_ITEM TYPE STRING,
RESERVATION_TYPE TYPE STRING,
DELETION_INDICATOR TYPE STRING,
MATERIAL TYPE STRING,
BATCH TYPE STRING,
PLANT TYPE STRING,
STORAGE_LOCATION TYPE STRING,
SUPPLY_AREA TYPE STRING,
SPECIAL_STOCK TYPE STRING,
SALES_ORD TYPE STRING,
S_ORD_ITEM TYPE STRING,
WBS_ELEM TYPE STRING,
VENDOR_NO TYPE STRING,
MOVEMENT_TYPE TYPE STRING,
BACKFLUSH TYPE STRING,
WITHDRAWN TYPE STRING,
ENTRY_QUANTITY TYPE STRING,
ENTRY_UOM TYPE STRING,
ENTRY_UOM_ISO TYPE STRING,
REQ_QUAN TYPE STRING,
BASE_UOM TYPE STRING,
BASE_UOM_ISO TYPE STRING,
NUMERATOR TYPE STRING,
DENOMINATR TYPE STRING,
COMP_SCRAP TYPE STRING,
OPR_SCRAP TYPE STRING,
MAT_GRP TYPE STRING,
CHCLASS_IN TYPE STRING,
OPERATION TYPE STRING,
OPR_DESCRIPTION TYPE STRING,
SEQUENCE_NO TYPE STRING,
WORK_CENTER TYPE STRING,
GR_RCPT TYPE STRING,
UNLOAD_PT TYPE STRING,
SORT_STRING TYPE STRING,
BOM_ITEM_NUMBER TYPE STRING,
ITEM_TEXT_1 TYPE STRING,
ITEM_TEXT_2 TYPE STRING,
REQ_DATE TYPE STRING,
REQ_TIME TYPE STRING,
LEAD_TIME_OFFSET TYPE STRING,
LEAD_TIME_OFFSET_OPR TYPE STRING,
LEAD_TIME_OFFSET_OPR_UNIT TYPE STRING,
LEAD_TIME_OFFSET_OPR_UNIT_ISO TYPE STRING,
EARL_SCHED_START_DATE_EXEC TYPE STRING,
EARL_SCHED_START_TIME_EXEC TYPE STRING,
EARL_SCHED_START_DATE_PROC TYPE STRING,
EARL_SCHED_START_TIME_PROC TYPE STRING,
EARL_SCHED_START_DATE_TEARD TYPE STRING,
EARL_SCHED_START_TIME_TEARD TYPE STRING,
EARL_SCHED_FIN_DATE_EXEC TYPE STRING,
EARL_SCHED_FIN_TIME_EXEC TYPE STRING,
LATE_SCHED_START_DATE_EXEC TYPE STRING,
LATE_SCHED_START_TIME_EXEC TYPE STRING,
LATE_SCHED_START_DATE_PROC TYPE STRING,
LATE_SCHED_START_TIME_PROC TYPE STRING,
LATE_SCHED_START_DATE_TEARD TYPE STRING,
LATE_SCHED_START_TIME_TEARD TYPE STRING,
LATE_SCHED_FIN_DATE_EXEC TYPE STRING,
LATE_SCHED_FIN_TIME_EXEC TYPE STRING,
MATERIAL_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_ERP_MFG_COMP_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_ERP_MFG_COMP_STR-RESERVATION_NUMBER sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-RESERVATION_ITEM sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-RESERVATION_TYPE sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-DELETION_INDICATOR sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-MATERIAL sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-BATCH sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-PLANT sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-STORAGE_LOCATION sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-SUPPLY_AREA sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-SPECIAL_STOCK sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-SALES_ORD sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-S_ORD_ITEM sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-WBS_ELEM sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-VENDOR_NO sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-MOVEMENT_TYPE sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-BACKFLUSH sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-WITHDRAWN sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-ENTRY_QUANTITY sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-ENTRY_UOM sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-ENTRY_UOM_ISO sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-REQ_QUAN sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-BASE_UOM sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-BASE_UOM_ISO sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-NUMERATOR sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-DENOMINATR sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-COMP_SCRAP sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-OPR_SCRAP sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-MAT_GRP sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-CHCLASS_IN sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-OPERATION sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-OPR_DESCRIPTION sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-SEQUENCE_NO sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-WORK_CENTER sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-GR_RCPT sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-UNLOAD_PT sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-SORT_STRING sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-BOM_ITEM_NUMBER sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-ITEM_TEXT_1 sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-ITEM_TEXT_2 sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-REQ_DATE sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-REQ_TIME sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-LEAD_TIME_OFFSET sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-LEAD_TIME_OFFSET_OPR sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-LEAD_TIME_OFFSET_OPR_UNIT sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-LEAD_TIME_OFFSET_OPR_UNIT_ISO sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-EARL_SCHED_START_DATE_EXEC sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-EARL_SCHED_START_TIME_EXEC sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-EARL_SCHED_START_DATE_PROC sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-EARL_SCHED_START_TIME_PROC sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-EARL_SCHED_START_DATE_TEARD sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-EARL_SCHED_START_TIME_TEARD sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-EARL_SCHED_FIN_DATE_EXEC sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-EARL_SCHED_FIN_TIME_EXEC sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-LATE_SCHED_START_DATE_EXEC sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-LATE_SCHED_START_TIME_EXEC sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-LATE_SCHED_START_DATE_PROC sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-LATE_SCHED_START_TIME_PROC sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-LATE_SCHED_START_DATE_TEARD sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-LATE_SCHED_START_TIME_TEARD sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-LATE_SCHED_FIN_DATE_EXEC sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-LATE_SCHED_FIN_TIME_EXEC sy-vline 
WA_/SCWM/S_ERP_MFG_COMP_STR-MATERIAL_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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