ABAP Select data from SAP table CMPEOALIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMPEOALIST
*  INTO TABLE @DATA(IT_CMPEOALIST2).
*--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_CMPEOALIST INDEX 1 INTO DATA(WA_CMPEOALIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMPEOALIST>-MANDT = 1.
<CMPEOALIST>-OPACTYNTWKINSTANCE = 1.
<CMPEOALIST>-OPACTYNTWKELEMENT = 1.
<CMPEOALIST>-LANGUAGE = 1.
<CMPEOALIST>-OPACTYNTWKSEGMENTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMPEOALIST-OPACTYNTWKSEGMENTTYPETEXT, sy-vline,
  WA_CMPEOALIST-OANELEMENTDISPLAYSQNCNUMBER, sy-vline,
  WA_CMPEOALIST-PRODUCTIONPLANT, sy-vline,
  WA_CMPEOALIST-OPACTYNTWKELEMENTEXTERNALID, sy-vline,
  WA_CMPEOALIST-OPERATIONACTIVITYNAME, sy-vline,
  WA_CMPEOALIST-OPERATIONACTIVITYNETWORKGROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMPEOALIST 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_CMPEOALIST 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_CMPEOALIST INTO WA_CMPEOALIST.


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

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

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

*Conversion exit NUMCV, internal->external for field MANUFACTURINGORDEROPERATION
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CMPEOALIST-MANUFACTURINGORDEROPERATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMPEOALIST-MANUFACTURINGORDEROPERATION.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CMPEOALIST-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMPEOALIST-MATERIAL.
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_CMPEOALIST_STR, 
MANDT TYPE STRING,
OPACTYNTWKINSTANCE TYPE STRING,
OPACTYNTWKELEMENT TYPE STRING,
LANGUAGE TYPE STRING,
OPACTYNTWKSEGMENTTYPE TYPE STRING,
OPACTYNTWKSEGMENTTYPETEXT TYPE STRING,
OANELEMENTDISPLAYSQNCNUMBER TYPE STRING,
PRODUCTIONPLANT TYPE STRING,
OPACTYNTWKELEMENTEXTERNALID TYPE STRING,
OPERATIONACTIVITYNAME TYPE STRING,
OPERATIONACTIVITYNETWORKGROUP TYPE STRING,
OPERATIONACTIVITY TYPE STRING,
INSPECTIONLOT TYPE STRING,
OPACTYNTWKGROUPVERSIONCOUNTER TYPE STRING,
OPERATIONACTYVERSIONCOUNTER TYPE STRING,
OPACTYNTWKGROUPEXTERNALID TYPE STRING,
MANUFACTURINGORDEROPERATION TYPE STRING,
MFGORDEROPERATIONTEXT TYPE STRING,
ORDERINTERNALID TYPE STRING,
OPERATIONUNIT TYPE STRING,
PRODUCTIONUNIT TYPE STRING,
OPACTYHASASSIGNEDCOMPONENTS TYPE STRING,
OPACTYHASASSGDWORKINSTRUCTIONS TYPE STRING,
OPACTYHASASSGDPRODNRSCETOOLS TYPE STRING,
OPACTYHASASSGDINSPCHARCS TYPE STRING,
OPACTYHASMANDATORYINSPCHARCS TYPE STRING,
MANUFACTURINGORDER TYPE STRING,
MATERIAL TYPE STRING,
MATERIALNAME TYPE STRING,
WORKCENTER TYPE STRING,
WORKCENTERTEXT TYPE STRING,
STATUSANDACTIONSCHEMASTATUS TYPE STRING,
SASSTATUSNAME TYPE STRING,
OPPLANNEDYIELDQUANTITY TYPE STRING,
OPPLANNEDSCRAPQUANTITY TYPE STRING,
CONFIRMATIONYIELDQUANTITY TYPE STRING,
WORKINSTRUCTION TYPE STRING,
WORKINSTRUCTIONVERSIONCOUNTER TYPE STRING,
MFGWORKINSTRUCTIONCONTENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMPEOALIST_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_CMPEOALIST_STR-MANDT sy-vline 
WA_CMPEOALIST_STR-OPACTYNTWKINSTANCE sy-vline 
WA_CMPEOALIST_STR-OPACTYNTWKELEMENT sy-vline 
WA_CMPEOALIST_STR-LANGUAGE sy-vline 
WA_CMPEOALIST_STR-OPACTYNTWKSEGMENTTYPE sy-vline 
WA_CMPEOALIST_STR-OPACTYNTWKSEGMENTTYPETEXT sy-vline 
WA_CMPEOALIST_STR-OANELEMENTDISPLAYSQNCNUMBER sy-vline 
WA_CMPEOALIST_STR-PRODUCTIONPLANT sy-vline 
WA_CMPEOALIST_STR-OPACTYNTWKELEMENTEXTERNALID sy-vline 
WA_CMPEOALIST_STR-OPERATIONACTIVITYNAME sy-vline 
WA_CMPEOALIST_STR-OPERATIONACTIVITYNETWORKGROUP sy-vline 
WA_CMPEOALIST_STR-OPERATIONACTIVITY sy-vline 
WA_CMPEOALIST_STR-INSPECTIONLOT sy-vline 
WA_CMPEOALIST_STR-OPACTYNTWKGROUPVERSIONCOUNTER sy-vline 
WA_CMPEOALIST_STR-OPERATIONACTYVERSIONCOUNTER sy-vline 
WA_CMPEOALIST_STR-OPACTYNTWKGROUPEXTERNALID sy-vline 
WA_CMPEOALIST_STR-MANUFACTURINGORDEROPERATION sy-vline 
WA_CMPEOALIST_STR-MFGORDEROPERATIONTEXT sy-vline 
WA_CMPEOALIST_STR-ORDERINTERNALID sy-vline 
WA_CMPEOALIST_STR-OPERATIONUNIT sy-vline 
WA_CMPEOALIST_STR-PRODUCTIONUNIT sy-vline 
WA_CMPEOALIST_STR-OPACTYHASASSIGNEDCOMPONENTS sy-vline 
WA_CMPEOALIST_STR-OPACTYHASASSGDWORKINSTRUCTIONS sy-vline 
WA_CMPEOALIST_STR-OPACTYHASASSGDPRODNRSCETOOLS sy-vline 
WA_CMPEOALIST_STR-OPACTYHASASSGDINSPCHARCS sy-vline 
WA_CMPEOALIST_STR-OPACTYHASMANDATORYINSPCHARCS sy-vline 
WA_CMPEOALIST_STR-MANUFACTURINGORDER sy-vline 
WA_CMPEOALIST_STR-MATERIAL sy-vline 
WA_CMPEOALIST_STR-MATERIALNAME sy-vline 
WA_CMPEOALIST_STR-WORKCENTER sy-vline 
WA_CMPEOALIST_STR-WORKCENTERTEXT sy-vline 
WA_CMPEOALIST_STR-STATUSANDACTIONSCHEMASTATUS sy-vline 
WA_CMPEOALIST_STR-SASSTATUSNAME sy-vline 
WA_CMPEOALIST_STR-OPPLANNEDYIELDQUANTITY sy-vline 
WA_CMPEOALIST_STR-OPPLANNEDSCRAPQUANTITY sy-vline 
WA_CMPEOALIST_STR-CONFIRMATIONYIELDQUANTITY sy-vline 
WA_CMPEOALIST_STR-WORKINSTRUCTION sy-vline 
WA_CMPEOALIST_STR-WORKINSTRUCTIONVERSIONCOUNTER sy-vline 
WA_CMPEOALIST_STR-MFGWORKINSTRUCTIONCONTENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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