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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_LAGP_M
*  INTO TABLE @DATA(IT_/SCWM/S_LAGP_M2).
*--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_LAGP_M INDEX 1 INTO DATA(WA_/SCWM/S_LAGP_M2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_LAGP_M>-MANDT = 1.
</SCWM/S_LAGP_M>-LGNUM = 1.
</SCWM/S_LAGP_M>-LGPLA = 1.
</SCWM/S_LAGP_M>-LGTYP = 1.
</SCWM/S_LAGP_M>-LGBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_LAGP_M-LPTYP, sy-vline,
  WA_/SCWM/S_LAGP_M-BIN_AT, sy-vline,
  WA_/SCWM/S_LAGP_M-PLAUF, sy-vline,
  WA_/SCWM/S_LAGP_M-PLPOS, sy-vline,
  WA_/SCWM/S_LAGP_M-SKZUA, sy-vline,
  WA_/SCWM/S_LAGP_M-SKZUE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_LAGP_M 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_LAGP_M 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_LAGP_M INTO WA_/SCWM/S_LAGP_M.


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

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

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

*Conversion exit GJAHR, internal->external for field IYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_LAGP_M-IYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_LAGP_M-IYEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field MRL_IYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_LAGP_M-MRL_IYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_LAGP_M-MRL_IYEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TSTWH, internal->external for field LAEDT
CALL FUNCTION 'CONVERSION_EXIT_TSTWH_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_LAGP_M-LAEDT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_LAGP_M-LAEDT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPH0, internal->external for field MAX_BIN_DEPTH
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_LAGP_M-MAX_BIN_DEPTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_LAGP_M-MAX_BIN_DEPTH.
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_LAGP_M_STR, 
MANDT TYPE STRING,
LGNUM TYPE STRING,
LGPLA TYPE STRING,
LGTYP TYPE STRING,
LGBER TYPE STRING,
LPTYP TYPE STRING,
BIN_AT TYPE STRING,
PLAUF TYPE STRING,
PLPOS TYPE STRING,
SKZUA TYPE STRING,
SKZUE TYPE STRING,
SKZSI TYPE STRING,
FLGSBIN TYPE STRING,
ANZLE TYPE STRING,
MAXLE TYPE STRING,
MAX_WEIGHT TYPE STRING,
UNIT_W TYPE STRING,
WEIGHT TYPE STRING,
VOLUM TYPE STRING,
MAX_VOLUME TYPE STRING,
UNIT_V TYPE STRING,
MAX_CAPA TYPE STRING,
FCAPA TYPE STRING,
KZLER TYPE STRING,
KZVOL TYPE STRING,
PTWY_DATE TYPE STRING,
MOVED_AT TYPE STRING,
BTANR TYPE STRING,
CLEARED_AT TYPE STRING,
KZINV TYPE STRING,
IDATU TYPE STRING,
IYEAR TYPE STRING,
IVNUM TYPE STRING,
IVPOS TYPE STRING,
MRL_IDATU TYPE STRING,
MRL_IYEAR TYPE STRING,
MRL_IVNUM TYPE STRING,
MRL_IVPOS TYPE STRING,
BRAND TYPE STRING,
UNAME TYPE STRING,
LAEDT TYPE STRING,
VERIF TYPE STRING,
LGPLA_MAIN TYPE STRING,
GUID_LOC TYPE STRING,
GUID_HU TYPE STRING,
AISLE TYPE STRING,
STACK TYPE STRING,
LVL_V TYPE STRING,
BINSC TYPE STRING,
DEPTH TYPE STRING,
X_CORD TYPE STRING,
Y_CORD TYPE STRING,
Z_CORD TYPE STRING,
FIXBINTYP TYPE STRING,
LGBER_LGST TYPE STRING,
CLSP_SORT TYPE STRING,
ANGLE TYPE STRING,
REC_GRP TYPE STRING,
REM_BIN_DEPTH TYPE STRING,
MAX_BIN_DEPTH TYPE STRING,
PBV_VERIF TYPE STRING,
MSGLI TYPE STRING,
MSGTY TYPE STRING,
MSGNO TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
ROW_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_LAGP_M_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_LAGP_M_STR-MANDT sy-vline 
WA_/SCWM/S_LAGP_M_STR-LGNUM sy-vline 
WA_/SCWM/S_LAGP_M_STR-LGPLA sy-vline 
WA_/SCWM/S_LAGP_M_STR-LGTYP sy-vline 
WA_/SCWM/S_LAGP_M_STR-LGBER sy-vline 
WA_/SCWM/S_LAGP_M_STR-LPTYP sy-vline 
WA_/SCWM/S_LAGP_M_STR-BIN_AT sy-vline 
WA_/SCWM/S_LAGP_M_STR-PLAUF sy-vline 
WA_/SCWM/S_LAGP_M_STR-PLPOS sy-vline 
WA_/SCWM/S_LAGP_M_STR-SKZUA sy-vline 
WA_/SCWM/S_LAGP_M_STR-SKZUE sy-vline 
WA_/SCWM/S_LAGP_M_STR-SKZSI sy-vline 
WA_/SCWM/S_LAGP_M_STR-FLGSBIN sy-vline 
WA_/SCWM/S_LAGP_M_STR-ANZLE sy-vline 
WA_/SCWM/S_LAGP_M_STR-MAXLE sy-vline 
WA_/SCWM/S_LAGP_M_STR-MAX_WEIGHT sy-vline 
WA_/SCWM/S_LAGP_M_STR-UNIT_W sy-vline 
WA_/SCWM/S_LAGP_M_STR-WEIGHT sy-vline 
WA_/SCWM/S_LAGP_M_STR-VOLUM sy-vline 
WA_/SCWM/S_LAGP_M_STR-MAX_VOLUME sy-vline 
WA_/SCWM/S_LAGP_M_STR-UNIT_V sy-vline 
WA_/SCWM/S_LAGP_M_STR-MAX_CAPA sy-vline 
WA_/SCWM/S_LAGP_M_STR-FCAPA sy-vline 
WA_/SCWM/S_LAGP_M_STR-KZLER sy-vline 
WA_/SCWM/S_LAGP_M_STR-KZVOL sy-vline 
WA_/SCWM/S_LAGP_M_STR-PTWY_DATE sy-vline 
WA_/SCWM/S_LAGP_M_STR-MOVED_AT sy-vline 
WA_/SCWM/S_LAGP_M_STR-BTANR sy-vline 
WA_/SCWM/S_LAGP_M_STR-CLEARED_AT sy-vline 
WA_/SCWM/S_LAGP_M_STR-KZINV sy-vline 
WA_/SCWM/S_LAGP_M_STR-IDATU sy-vline 
WA_/SCWM/S_LAGP_M_STR-IYEAR sy-vline 
WA_/SCWM/S_LAGP_M_STR-IVNUM sy-vline 
WA_/SCWM/S_LAGP_M_STR-IVPOS sy-vline 
WA_/SCWM/S_LAGP_M_STR-MRL_IDATU sy-vline 
WA_/SCWM/S_LAGP_M_STR-MRL_IYEAR sy-vline 
WA_/SCWM/S_LAGP_M_STR-MRL_IVNUM sy-vline 
WA_/SCWM/S_LAGP_M_STR-MRL_IVPOS sy-vline 
WA_/SCWM/S_LAGP_M_STR-BRAND sy-vline 
WA_/SCWM/S_LAGP_M_STR-UNAME sy-vline 
WA_/SCWM/S_LAGP_M_STR-LAEDT sy-vline 
WA_/SCWM/S_LAGP_M_STR-VERIF sy-vline 
WA_/SCWM/S_LAGP_M_STR-LGPLA_MAIN sy-vline 
WA_/SCWM/S_LAGP_M_STR-GUID_LOC sy-vline 
WA_/SCWM/S_LAGP_M_STR-GUID_HU sy-vline 
WA_/SCWM/S_LAGP_M_STR-AISLE sy-vline 
WA_/SCWM/S_LAGP_M_STR-STACK sy-vline 
WA_/SCWM/S_LAGP_M_STR-LVL_V sy-vline 
WA_/SCWM/S_LAGP_M_STR-BINSC sy-vline 
WA_/SCWM/S_LAGP_M_STR-DEPTH sy-vline 
WA_/SCWM/S_LAGP_M_STR-X_CORD sy-vline 
WA_/SCWM/S_LAGP_M_STR-Y_CORD sy-vline 
WA_/SCWM/S_LAGP_M_STR-Z_CORD sy-vline 
WA_/SCWM/S_LAGP_M_STR-FIXBINTYP sy-vline 
WA_/SCWM/S_LAGP_M_STR-LGBER_LGST sy-vline 
WA_/SCWM/S_LAGP_M_STR-CLSP_SORT sy-vline 
WA_/SCWM/S_LAGP_M_STR-ANGLE sy-vline 
WA_/SCWM/S_LAGP_M_STR-REC_GRP sy-vline 
WA_/SCWM/S_LAGP_M_STR-REM_BIN_DEPTH sy-vline 
WA_/SCWM/S_LAGP_M_STR-MAX_BIN_DEPTH sy-vline 
WA_/SCWM/S_LAGP_M_STR-PBV_VERIF sy-vline 
WA_/SCWM/S_LAGP_M_STR-MSGLI sy-vline 
WA_/SCWM/S_LAGP_M_STR-MSGTY sy-vline 
WA_/SCWM/S_LAGP_M_STR-MSGNO sy-vline 
WA_/SCWM/S_LAGP_M_STR-MSGV1 sy-vline 
WA_/SCWM/S_LAGP_M_STR-MSGV2 sy-vline 
WA_/SCWM/S_LAGP_M_STR-MSGV3 sy-vline 
WA_/SCWM/S_LAGP_M_STR-MSGV4 sy-vline 
WA_/SCWM/S_LAGP_M_STR-ROW_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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