ABAP Select data from SAP table /SCMTMS/C_SCAITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCMTMS/C_SCAITM
*  INTO TABLE @DATA(IT_/SCMTMS/C_SCAITM2).
*--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_/SCMTMS/C_SCAITM INDEX 1 INTO DATA(WA_/SCMTMS/C_SCAITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCMTMS/C_SCAITM>-CLIENT = 1.
</SCMTMS/C_SCAITM>-SCAID = 1.
</SCMTMS/C_SCAITM>-SCAITM = 1.
</SCMTMS/C_SCAITM>-QTY_VALUE_NUM = 1.
</SCMTMS/C_SCAITM>-QTY_VALUE_CUR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCMTMS/C_SCAITM-SCAVAL_AIR_CODE, sy-vline,
  WA_/SCMTMS/C_SCAITM-SCAVAL_CHRG_TYPE, sy-vline,
  WA_/SCMTMS/C_SCAITM-SCAVAL_CITY, sy-vline,
  WA_/SCMTMS/C_SCAITM-SCAVAL_COUNTRY, sy-vline,
  WA_/SCMTMS/C_SCAITM-SCAVAL_COMM_CODE, sy-vline,
  WA_/SCMTMS/C_SCAITM-SCAVAL_CONTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCMTMS/C_SCAITM 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_/SCMTMS/C_SCAITM 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_/SCMTMS/C_SCAITM INTO WA_/SCMTMS/C_SCAITM.


*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 SCAID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/C_SCAITM-SCAID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/C_SCAITM-SCAID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit QTYRN, internal->external for field QTY_VALUE_NUM
CALL FUNCTION 'CONVERSION_EXIT_QTYRN_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/C_SCAITM-QTY_VALUE_NUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/C_SCAITM-QTY_VALUE_NUM.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/C_SCAITM-UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/C_SCAITM-UOM.
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_/SCMTMS/C_SCAITM_STR, 
CLIENT TYPE STRING,
SCAID TYPE STRING,
SCAITM TYPE STRING,
QTY_VALUE_NUM TYPE STRING,
QTY_VALUE_CUR TYPE STRING,
SCAVAL_AIR_CODE TYPE STRING,
SCAVAL_CHRG_TYPE TYPE STRING,
SCAVAL_CITY TYPE STRING,
SCAVAL_COUNTRY TYPE STRING,
SCAVAL_COMM_CODE TYPE STRING,
SCAVAL_CONTYP TYPE STRING,
SCAVAL_CITY_CODE TYPE STRING,
SCAVAL_DATE TYPE STRING,
SCAVAL_EQUIGRPCD TYPE STRING,
SCAVAL_RESTYPE TYPE STRING,
SCAVAL_FLIGHTCODE TYPE STRING,
SCAVAL_CHAR TYPE STRING,
SCAVAL_HNDLCODE TYPE STRING,
SCAVAL_IATACD TYPE STRING,
SCAVAL_INCOTERM TYPE STRING,
SCAVAL_INDICATOR TYPE STRING,
SCAVAL_NOTE TYPE STRING,
SCAVAL_ITEM_CAT TYPE STRING,
SCAVAL_MTR TYPE STRING,
SCAVAL_MODETR TYPE STRING,
SCAVAL_SHFSHT TYPE STRING,
SCAVAL_ORG TYPE STRING,
SCAVAL_OWNERSHIP_TYPE TYPE STRING,
SCAVAL_PAYER TYPE STRING,
SCAVAL_PKGTYP TYPE STRING,
SCAVAL_PSTL_CD TYPE STRING,
SCAVAL_REGIO TYPE STRING,
SCAVAL_PRODUCTID TYPE STRING,
SCAVAL_PRDFRTCD TYPE STRING,
SCAVAL_PRDTRNGRP TYPE STRING,
SCAVAL_TRPRIO135 TYPE STRING,
SCAVAL_SRVRQ121 TYPE STRING,
SCAVAL_STGTYP TYPE STRING,
SCAVAL_DATE_TS TYPE STRING,
SCAVAL_UNIT TYPE STRING,
SCAVAL_ULDRTTY TYPE STRING,
SCAVAL_LOC_UNLO TYPE STRING,
SCAVAL_WEEKDAY TYPE STRING,
SCAVAL_PARTNER_EXT TYPE STRING,
SCAVAL_CONDITION_EXT TYPE STRING,
SCAVAL_LOCID_EXT TYPE STRING,
SCAVAL_TRNS_ZN_EXT TYPE STRING,
CURRENCY TYPE STRING,
UOM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCMTMS/C_SCAITM_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_/SCMTMS/C_SCAITM_STR-CLIENT sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAID sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAITM sy-vline 
WA_/SCMTMS/C_SCAITM_STR-QTY_VALUE_NUM sy-vline 
WA_/SCMTMS/C_SCAITM_STR-QTY_VALUE_CUR sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_AIR_CODE sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_CHRG_TYPE sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_CITY sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_COUNTRY sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_COMM_CODE sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_CONTYP sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_CITY_CODE sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_DATE sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_EQUIGRPCD sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_RESTYPE sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_FLIGHTCODE sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_CHAR sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_HNDLCODE sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_IATACD sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_INCOTERM sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_INDICATOR sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_NOTE sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_ITEM_CAT sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_MTR sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_MODETR sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_SHFSHT sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_ORG sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_OWNERSHIP_TYPE sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_PAYER sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_PKGTYP sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_PSTL_CD sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_REGIO sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_PRODUCTID sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_PRDFRTCD sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_PRDTRNGRP sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_TRPRIO135 sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_SRVRQ121 sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_STGTYP sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_DATE_TS sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_UNIT sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_ULDRTTY sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_LOC_UNLO sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_WEEKDAY sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_PARTNER_EXT sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_CONDITION_EXT sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_LOCID_EXT sy-vline 
WA_/SCMTMS/C_SCAITM_STR-SCAVAL_TRNS_ZN_EXT sy-vline 
WA_/SCMTMS/C_SCAITM_STR-CURRENCY sy-vline 
WA_/SCMTMS/C_SCAITM_STR-UOM sy-vline      INTO ld_text SEPARATED BY SPACE.

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