ABAP Select data from SAP table CMCOMPONENTAPTP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CMCOMPONENTAPTP 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 CMCOMPONENTAPTP. 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 CMCOMPONENTAPTP 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_CMCOMPONENTAPTP TYPE STANDARD TABLE OF CMCOMPONENTAPTP,
      WA_CMCOMPONENTAPTP TYPE CMCOMPONENTAPTP,
      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: <CMCOMPONENTAPTP> TYPE CMCOMPONENTAPTP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMCOMPONENTAPTP
*  INTO TABLE @DATA(IT_CMCOMPONENTAPTP2).
*--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_CMCOMPONENTAPTP INDEX 1 INTO DATA(WA_CMCOMPONENTAPTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMCOMPONENTAPTP>-MANDT = 1.
<CMCOMPONENTAPTP>-MATLBSDCOMPUUID = 1.
<CMCOMPONENTAPTP>-CHMLCOMPOSITIONUUID = 1.
<CMCOMPONENTAPTP>-CHMLCMPLNCINFOUUID = 1.
<CMCOMPONENTAPTP>-CHMLCOMPOSITIONSTATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMCOMPONENTAPTP-COMPCHMLCMPLNCINFOUUID, sy-vline,
  WA_CMCOMPONENTAPTP-MATERIAL, sy-vline,
  WA_CMCOMPONENTAPTP-CHMLCMPLNCINFOCOMBINEDNAME, sy-vline,
  WA_CMCOMPONENTAPTP-MATLBSDCOMPPRODUCTIONTYPE, sy-vline,
  WA_CMCOMPONENTAPTP-SEMANTICOBJECT, sy-vline,
  WA_CMCOMPONENTAPTP-CHMLCMPLNCINFONAVGNLINK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMCOMPONENTAPTP 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_CMCOMPONENTAPTP 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_CMCOMPONENTAPTP INTO WA_CMCOMPONENTAPTP.


*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 MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CMCOMPONENTAPTP-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMCOMPONENTAPTP-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SPEC1, internal->external for field SPECIFICATIONNAVGNLINK
CALL FUNCTION 'CONVERSION_EXIT_SPEC1_OUTPUT'
  EXPORTING
    input =                      WA_CMCOMPONENTAPTP-SPECIFICATIONNAVGNLINK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMCOMPONENTAPTP-SPECIFICATIONNAVGNLINK.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit CUNIT, internal->external for field CHMLCOMPRELDBFRQTYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CMCOMPONENTAPTP-CHMLCOMPRELDBFRQTYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMCOMPONENTAPTP-CHMLCOMPRELDBFRQTYUNIT.
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_CMCOMPONENTAPTP_STR, 
MANDT TYPE STRING,
MATLBSDCOMPUUID TYPE STRING,
CHMLCOMPOSITIONUUID TYPE STRING,
CHMLCMPLNCINFOUUID TYPE STRING,
CHMLCOMPOSITIONSTATUS TYPE STRING,
COMPCHMLCMPLNCINFOUUID TYPE STRING,
MATERIAL TYPE STRING,
CHMLCMPLNCINFOCOMBINEDNAME TYPE STRING,
MATLBSDCOMPPRODUCTIONTYPE TYPE STRING,
SEMANTICOBJECT TYPE STRING,
CHMLCMPLNCINFONAVGNLINK TYPE STRING,
SPECIFICATIONNAVGNLINK TYPE STRING,
CHMLCOMPCHANGESTATUS TYPE STRING,
CHMLCOMPCHANGESTATUSTEXT TYPE STRING,
CHMLCOMPCHANGESTSSORT TYPE STRING,
CHMLCOMPISNOTCONTAINED TYPE STRING,
CHMLCOMPQTYASTEXT TYPE STRING,
CHMLCOMPQTYUNIT TYPE STRING,
UNITOFMEASURENAME TYPE STRING,
CHMLCOMPLOWERLIMITQTYOPTR TYPE STRING,
CHMLCOMPLOWERLIMITQTYASTEXT TYPE STRING,
CHMLCOMPUPPERLIMITQTYOPTR TYPE STRING,
CHMLCOMPUPPERLIMITQTYASTEXT TYPE STRING,
CHMLCOMPRELDQTYASTEXT TYPE STRING,
CHMLCOMPRELDQTYUNIT TYPE STRING,
CHMLCOMPRELDQTYUNITTEXT TYPE STRING,
CHMLCOMPRELDLOWRLIMITQTYOPTR TYPE STRING,
CHMLCOMPRELDLOWRLIMITQTYASTEXT TYPE STRING,
CHMLCOMPRELDUPRLIMITQTYOPTR TYPE STRING,
CHMLCOMPRELDUPRLIMITQTYASTEXT TYPE STRING,
CHMLCOMPBFRQTYASTEXT TYPE STRING,
CHMLCOMPBFRQTYUNIT TYPE STRING,
CHMLCOMPBFRQTYUNITTEXT TYPE STRING,
CHMLCOMPBFRLOWRLMTQTYOPTR TYPE STRING,
CHMLCOMPBFRLOWRLMTQTYASTXT TYPE STRING,
CHMLCOMPBFRUPRLMTQTYOPTR TYPE STRING,
CHMLCOMPBFRUPRLMTQTYASTXT TYPE STRING,
CHMLCOMPRELDBFRQTYASTEXT TYPE STRING,
CHMLCOMPRELDBFRQTYUNIT TYPE STRING,
CHMLCOMPRELDBFRQTYUNITTEXT TYPE STRING,
CHMLCOMPRELDBFRLOWRLMTQTYOPTR TYPE STRING,
CHMLCOMPRELDBFRLOWRLMTQTYASTXT TYPE STRING,
CHMLCOMPRELDBFRUPRLMTQTYOPTR TYPE STRING,
CHMLCOMPRELDBFRUPRLMTQTYASTXT TYPE STRING,
MATERIALISPRODUCED TYPE STRING,
MATERIALISSOURCED TYPE STRING,
MATERIALISSOLD TYPE STRING,
MATERIALISTRANSPORTED TYPE STRING,
CHMLCMPLNCINFOTYPE TYPE STRING,
MATLBSDCMPSTNNAVGNLINKUUID TYPE STRING,
MATLBSDCMPSTNISACTIVE TYPE STRING,
ANALYTICCMPSTNNAVGNLINKUUID TYPE STRING,
ANALYTICCMPSTNISACTIVE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMCOMPONENTAPTP_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_CMCOMPONENTAPTP_STR-MANDT sy-vline 
WA_CMCOMPONENTAPTP_STR-MATLBSDCOMPUUID sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPOSITIONUUID sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCMPLNCINFOUUID sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPOSITIONSTATUS sy-vline 
WA_CMCOMPONENTAPTP_STR-COMPCHMLCMPLNCINFOUUID sy-vline 
WA_CMCOMPONENTAPTP_STR-MATERIAL sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCMPLNCINFOCOMBINEDNAME sy-vline 
WA_CMCOMPONENTAPTP_STR-MATLBSDCOMPPRODUCTIONTYPE sy-vline 
WA_CMCOMPONENTAPTP_STR-SEMANTICOBJECT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCMPLNCINFONAVGNLINK sy-vline 
WA_CMCOMPONENTAPTP_STR-SPECIFICATIONNAVGNLINK sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPCHANGESTATUS sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPCHANGESTATUSTEXT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPCHANGESTSSORT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPISNOTCONTAINED sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPQTYASTEXT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPQTYUNIT sy-vline 
WA_CMCOMPONENTAPTP_STR-UNITOFMEASURENAME sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPLOWERLIMITQTYOPTR sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPLOWERLIMITQTYASTEXT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPUPPERLIMITQTYOPTR sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPUPPERLIMITQTYASTEXT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPRELDQTYASTEXT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPRELDQTYUNIT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPRELDQTYUNITTEXT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPRELDLOWRLIMITQTYOPTR sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPRELDLOWRLIMITQTYASTEXT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPRELDUPRLIMITQTYOPTR sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPRELDUPRLIMITQTYASTEXT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPBFRQTYASTEXT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPBFRQTYUNIT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPBFRQTYUNITTEXT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPBFRLOWRLMTQTYOPTR sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPBFRLOWRLMTQTYASTXT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPBFRUPRLMTQTYOPTR sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPBFRUPRLMTQTYASTXT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPRELDBFRQTYASTEXT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPRELDBFRQTYUNIT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPRELDBFRQTYUNITTEXT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPRELDBFRLOWRLMTQTYOPTR sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPRELDBFRLOWRLMTQTYASTXT sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPRELDBFRUPRLMTQTYOPTR sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCOMPRELDBFRUPRLMTQTYASTXT sy-vline 
WA_CMCOMPONENTAPTP_STR-MATERIALISPRODUCED sy-vline 
WA_CMCOMPONENTAPTP_STR-MATERIALISSOURCED sy-vline 
WA_CMCOMPONENTAPTP_STR-MATERIALISSOLD sy-vline 
WA_CMCOMPONENTAPTP_STR-MATERIALISTRANSPORTED sy-vline 
WA_CMCOMPONENTAPTP_STR-CHMLCMPLNCINFOTYPE sy-vline 
WA_CMCOMPONENTAPTP_STR-MATLBSDCMPSTNNAVGNLINKUUID sy-vline 
WA_CMCOMPONENTAPTP_STR-MATLBSDCMPSTNISACTIVE sy-vline 
WA_CMCOMPONENTAPTP_STR-ANALYTICCMPSTNNAVGNLINKUUID sy-vline 
WA_CMCOMPONENTAPTP_STR-ANALYTICCMPSTNISACTIVE sy-vline      INTO ld_text SEPARATED BY SPACE.

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