ABAP Select data from SAP table CMWSHPHDR into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CMWSHPHDR 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 CMWSHPHDR. 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 CMWSHPHDR 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_CMWSHPHDR TYPE STANDARD TABLE OF CMWSHPHDR,
      WA_CMWSHPHDR TYPE CMWSHPHDR,
      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: <CMWSHPHDR> TYPE CMWSHPHDR.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CMWSHPHDR
  INTO TABLE IT_CMWSHPHDR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMWSHPHDR
*  INTO TABLE @DATA(IT_CMWSHPHDR2).
*--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_CMWSHPHDR INDEX 1 INTO DATA(WA_CMWSHPHDR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CMWSHPHDR ASSIGNING <CMWSHPHDR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMWSHPHDR>-HDRROWUUID = 1.
<CMWSHPHDR>-ROWUUID = 1.
<CMWSHPHDR>-SHPUUID = 1.
<CMWSHPHDR>-LOCUUID = 1.
<CMWSHPHDR>-VERSION = 1.

ENDLOOP.

LOOP AT IT_CMWSHPHDR INTO WA_CMWSHPHDR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMWSHPHDR-SHP_ID, sy-vline,
  WA_CMWSHPHDR-SHP_NUM, sy-vline,
  WA_CMWSHPHDR-SHP_TYPE, sy-vline,
  WA_CMWSHPHDR-ST_PLAN, sy-vline,
  WA_CMWSHPHDR-ST_TND, sy-vline,
  WA_CMWSHPHDR-CAR_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMWSHPHDR 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_CMWSHPHDR 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_CMWSHPHDR INTO WA_CMWSHPHDR.


*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 SHP_NUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMWSHPHDR-SHP_NUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMWSHPHDR-SHP_NUM.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TSTRG, internal->external for field TIME_TOT
CALL FUNCTION 'CONVERSION_EXIT_TSTRG_OUTPUT'
  EXPORTING
    input =                      WA_CMWSHPHDR-TIME_TOT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMWSHPHDR-TIME_TOT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRN, internal->external for field TIME_TVL
CALL FUNCTION 'CONVERSION_EXIT_TSTRN_OUTPUT'
  EXPORTING
    input =                      WA_CMWSHPHDR-TIME_TVL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMWSHPHDR-TIME_TVL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field TIME_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CMWSHPHDR-TIME_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMWSHPHDR-TIME_UNIT.
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_CMWSHPHDR_STR, 
HDRROWUUID TYPE STRING,
ROWUUID TYPE STRING,
SHPUUID TYPE STRING,
LOCUUID TYPE STRING,
VERSION TYPE STRING,
SHP_ID TYPE STRING,
SHP_NUM TYPE STRING,
SHP_TYPE TYPE STRING,
ST_PLAN TYPE STRING,
ST_TND TYPE STRING,
CAR_ID TYPE STRING,
CAR_LOC_TYPE TYPE STRING,
CAR_LOC_NO TYPE STRING,
DIST TYPE STRING,
DIST_UNIT TYPE STRING,
DIST_ISO TYPE STRING,
TIME_TOT TYPE STRING,
TIME_TVL TYPE STRING,
TIME_UNIT TYPE STRING,
TIME_ISO TYPE STRING,
SHP_CREL TYPE STRING,
EXT_ID TYPE STRING,
CIF_LOC TYPE STRING,
CIF_TPP TYPE STRING,
CIF_ACTION TYPE STRING,
CIF_IBS TYPE STRING,
SHP_COST TYPE STRING,
SHP_COST_CUR TYPE STRING,
CM_IDENT TYPE STRING,
CM_SEQUENCE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMWSHPHDR_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_CMWSHPHDR_STR-HDRROWUUID sy-vline 
WA_CMWSHPHDR_STR-ROWUUID sy-vline 
WA_CMWSHPHDR_STR-SHPUUID sy-vline 
WA_CMWSHPHDR_STR-LOCUUID sy-vline 
WA_CMWSHPHDR_STR-VERSION sy-vline 
WA_CMWSHPHDR_STR-SHP_ID sy-vline 
WA_CMWSHPHDR_STR-SHP_NUM sy-vline 
WA_CMWSHPHDR_STR-SHP_TYPE sy-vline 
WA_CMWSHPHDR_STR-ST_PLAN sy-vline 
WA_CMWSHPHDR_STR-ST_TND sy-vline 
WA_CMWSHPHDR_STR-CAR_ID sy-vline 
WA_CMWSHPHDR_STR-CAR_LOC_TYPE sy-vline 
WA_CMWSHPHDR_STR-CAR_LOC_NO sy-vline 
WA_CMWSHPHDR_STR-DIST sy-vline 
WA_CMWSHPHDR_STR-DIST_UNIT sy-vline 
WA_CMWSHPHDR_STR-DIST_ISO sy-vline 
WA_CMWSHPHDR_STR-TIME_TOT sy-vline 
WA_CMWSHPHDR_STR-TIME_TVL sy-vline 
WA_CMWSHPHDR_STR-TIME_UNIT sy-vline 
WA_CMWSHPHDR_STR-TIME_ISO sy-vline 
WA_CMWSHPHDR_STR-SHP_CREL sy-vline 
WA_CMWSHPHDR_STR-EXT_ID sy-vline 
WA_CMWSHPHDR_STR-CIF_LOC sy-vline 
WA_CMWSHPHDR_STR-CIF_TPP sy-vline 
WA_CMWSHPHDR_STR-CIF_ACTION sy-vline 
WA_CMWSHPHDR_STR-CIF_IBS sy-vline 
WA_CMWSHPHDR_STR-SHP_COST sy-vline 
WA_CMWSHPHDR_STR-SHP_COST_CUR sy-vline 
WA_CMWSHPHDR_STR-CM_IDENT sy-vline 
WA_CMWSHPHDR_STR-CM_SEQUENCE sy-vline      INTO ld_text SEPARATED BY SPACE.

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