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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_PAK_MC
*  INTO TABLE @DATA(IT_/SCWM/S_PAK_MC2).
*--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_PAK_MC INDEX 1 INTO DATA(WA_/SCWM/S_PAK_MC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_PAK_MC>-KVEWE = 1.
</SCWM/S_PAK_MC>-KOTABNR = 1.
</SCWM/S_PAK_MC>-VARNUMH = 1.
</SCWM/S_PAK_MC>-KSCHL = 1.
</SCWM/S_PAK_MC>-OBJECT_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_PAK_MC-TIMESTAMP_TO, sy-vline,
  WA_/SCWM/S_PAK_MC-RELEASE_STATUS, sy-vline,
  WA_/SCWM/S_PAK_MC-TIMESTAMP_FROM, sy-vline,
  WA_/SCWM/S_PAK_MC-KSCHL_SUPP, sy-vline,
  WA_/SCWM/S_PAK_MC-COND_GROUP_ID, sy-vline,
  WA_/SCWM/S_PAK_MC-MAINT_STATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_PAK_MC 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_PAK_MC 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_PAK_MC INTO WA_/SCWM/S_PAK_MC.


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

*Conversion exit MDSCU, internal->external for field PAK_LOCID
CALL FUNCTION 'CONVERSION_EXIT_MDSCU_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_PAK_MC-PAK_LOCID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_PAK_MC-PAK_LOCID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MDLPD, internal->external for field PAK_MATID
CALL FUNCTION 'CONVERSION_EXIT_MDLPD_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_PAK_MC-PAK_MATID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_PAK_MC-PAK_MATID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MDLPD, internal->external for field PAK_REFMATID
CALL FUNCTION 'CONVERSION_EXIT_MDLPD_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_PAK_MC-PAK_REFMATID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_PAK_MC-PAK_REFMATID.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit PSID, internal->external for field PS_GUID
CALL FUNCTION 'CONVERSION_EXIT_PSID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_PAK_MC-PS_GUID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_PAK_MC-PS_GUID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field PAK_REFMATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_PAK_MC-PAK_REFMATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_PAK_MC-PAK_REFMATNR.
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_PAK_MC_STR, 
KVEWE TYPE STRING,
KOTABNR TYPE STRING,
VARNUMH TYPE STRING,
KSCHL TYPE STRING,
OBJECT_ID TYPE STRING,
TIMESTAMP_TO TYPE STRING,
RELEASE_STATUS TYPE STRING,
TIMESTAMP_FROM TYPE STRING,
KSCHL_SUPP TYPE STRING,
COND_GROUP_ID TYPE STRING,
MAINT_STATUS TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_ON TYPE STRING,
DET_DEFAULT_TIMESTAMP TYPE STRING,
PAK_AUART TYPE STRING,
PAK_AUGRU TYPE STRING,
PAK_BZIRK TYPE STRING,
PAK_CAP TYPE STRING,
PAK_CARRIER TYPE STRING,
PAK_CNTRY TYPE STRING,
PAK_DEPL_APPL TYPE STRING,
PAK_DEPL_MODE TYPE STRING,
PAK_DEPL_VCL TYPE STRING,
PAK_DIST_GROUP TYPE STRING,
PAK_HUTYP_DFLT TYPE STRING,
PAK_KDGRP TYPE STRING,
PAK_LGTYP TYPE STRING,
PAK_LOCID TYPE STRING,
PAK_MATID TYPE STRING,
PAK_PLANT TYPE STRING,
PAK_PROCTY TYPE STRING,
PAK_PSA TYPE STRING,
PAK_REFMATID TYPE STRING,
PAK_REGIO TYPE STRING,
PAK_ROUTE TYPE STRING,
PAK_RULE TYPE STRING,
PAK_SHIP_FROM TYPE STRING,
PAK_SHIP_TO TYPE STRING,
PAK_SOLD_TO TYPE STRING,
PAK_VSBED TYPE STRING,
PAK_WORKCENTER TYPE STRING,
PS_PSID TYPE STRING,
PS_GUID TYPE STRING,
PS_SEQ TYPE STRING,
PS_COND TYPE STRING,
PS_DISTR TYPE STRING,
KOPOS TYPE STRING,
SUPP_EXIST TYPE STRING,
SCALE_DIM TYPE STRING,
PAK_MATNR TYPE STRING,
PAK_REFMATNR TYPE STRING,
PAK_LOCNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_PAK_MC_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_PAK_MC_STR-KVEWE sy-vline 
WA_/SCWM/S_PAK_MC_STR-KOTABNR sy-vline 
WA_/SCWM/S_PAK_MC_STR-VARNUMH sy-vline 
WA_/SCWM/S_PAK_MC_STR-KSCHL sy-vline 
WA_/SCWM/S_PAK_MC_STR-OBJECT_ID sy-vline 
WA_/SCWM/S_PAK_MC_STR-TIMESTAMP_TO sy-vline 
WA_/SCWM/S_PAK_MC_STR-RELEASE_STATUS sy-vline 
WA_/SCWM/S_PAK_MC_STR-TIMESTAMP_FROM sy-vline 
WA_/SCWM/S_PAK_MC_STR-KSCHL_SUPP sy-vline 
WA_/SCWM/S_PAK_MC_STR-COND_GROUP_ID sy-vline 
WA_/SCWM/S_PAK_MC_STR-MAINT_STATUS sy-vline 
WA_/SCWM/S_PAK_MC_STR-CREATED_BY sy-vline 
WA_/SCWM/S_PAK_MC_STR-CREATED_ON sy-vline 
WA_/SCWM/S_PAK_MC_STR-DET_DEFAULT_TIMESTAMP sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_AUART sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_AUGRU sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_BZIRK sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_CAP sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_CARRIER sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_CNTRY sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_DEPL_APPL sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_DEPL_MODE sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_DEPL_VCL sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_DIST_GROUP sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_HUTYP_DFLT sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_KDGRP sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_LGTYP sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_LOCID sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_MATID sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_PLANT sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_PROCTY sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_PSA sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_REFMATID sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_REGIO sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_ROUTE sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_RULE sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_SHIP_FROM sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_SHIP_TO sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_SOLD_TO sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_VSBED sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_WORKCENTER sy-vline 
WA_/SCWM/S_PAK_MC_STR-PS_PSID sy-vline 
WA_/SCWM/S_PAK_MC_STR-PS_GUID sy-vline 
WA_/SCWM/S_PAK_MC_STR-PS_SEQ sy-vline 
WA_/SCWM/S_PAK_MC_STR-PS_COND sy-vline 
WA_/SCWM/S_PAK_MC_STR-PS_DISTR sy-vline 
WA_/SCWM/S_PAK_MC_STR-KOPOS sy-vline 
WA_/SCWM/S_PAK_MC_STR-SUPP_EXIST sy-vline 
WA_/SCWM/S_PAK_MC_STR-SCALE_DIM sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_MATNR sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_REFMATNR sy-vline 
WA_/SCWM/S_PAK_MC_STR-PAK_LOCNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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