ABAP Select data from SAP table CCHGIMPCTPLR 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 CCHGIMPCTPLR 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 CCHGIMPCTPLR. 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 CCHGIMPCTPLR 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_CCHGIMPCTPLR TYPE STANDARD TABLE OF CCHGIMPCTPLR,
      WA_CCHGIMPCTPLR TYPE CCHGIMPCTPLR,
      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: <CCHGIMPCTPLR> TYPE CCHGIMPCTPLR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCHGIMPCTPLR
*  INTO TABLE @DATA(IT_CCHGIMPCTPLR2).
*--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_CCHGIMPCTPLR INDEX 1 INTO DATA(WA_CCHGIMPCTPLR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCHGIMPCTPLR>-MANDT = 1.
<CCHGIMPCTPLR>-BILLOFOPERATIONSGROUP = 1.
<CCHGIMPCTPLR>-BILLOFOPERATIONSTYPE = 1.
<CCHGIMPCTPLR>-BILLOFOPERATIONSVARIANT = 1.
<CCHGIMPCTPLR>-BOOINTERNALVERSIONCOUNTER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCHGIMPCTPLR-BILLOFOPERATIONSDESC, sy-vline,
  WA_CCHGIMPCTPLR-CHANGENUMBER, sy-vline,
  WA_CCHGIMPCTPLR-BILLOFOPERATIONSUSAGE, sy-vline,
  WA_CCHGIMPCTPLR-BILLOFOPERATIONSSTATUS, sy-vline,
  WA_CCHGIMPCTPLR-BILLOFOPERATIONSSTATUSDESC, sy-vline,
  WA_CCHGIMPCTPLR-PRODUCTIONPLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCHGIMPCTPLR 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_CCHGIMPCTPLR 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_CCHGIMPCTPLR INTO WA_CCHGIMPCTPLR.


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

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

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

*Conversion exit CUNIT, internal->external for field BILLOFOPERATIONSUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CCHGIMPCTPLR-BILLOFOPERATIONSUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCHGIMPCTPLR-BILLOFOPERATIONSUNIT.
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_CCHGIMPCTPLR_STR, 
MANDT TYPE STRING,
BILLOFOPERATIONSGROUP TYPE STRING,
BILLOFOPERATIONSTYPE TYPE STRING,
BILLOFOPERATIONSVARIANT TYPE STRING,
BOOINTERNALVERSIONCOUNTER TYPE STRING,
BILLOFOPERATIONSDESC TYPE STRING,
CHANGENUMBER TYPE STRING,
BILLOFOPERATIONSUSAGE TYPE STRING,
BILLOFOPERATIONSSTATUS TYPE STRING,
BILLOFOPERATIONSSTATUSDESC TYPE STRING,
PRODUCTIONPLANT TYPE STRING,
MINIMUMLOTSIZEQUANTITY TYPE STRING,
MAXIMUMLOTSIZEQUANTITY TYPE STRING,
RESPONSIBLEPLANNERGROUP TYPE STRING,
WORKCENTERTYPECODE TYPE STRING,
EFFECTIVITYTYPE TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
BILLOFOPERATIONSUNIT TYPE STRING,
CREATIONDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTUSAGEDATE TYPE STRING,
NUMBEROFUSAGES TYPE STRING,
BILLOFOPERATIONSTYPENAME TYPE STRING,
BILLOFOPERATIONSUSAGEDESC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCHGIMPCTPLR_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_CCHGIMPCTPLR_STR-MANDT sy-vline 
WA_CCHGIMPCTPLR_STR-BILLOFOPERATIONSGROUP sy-vline 
WA_CCHGIMPCTPLR_STR-BILLOFOPERATIONSTYPE sy-vline 
WA_CCHGIMPCTPLR_STR-BILLOFOPERATIONSVARIANT sy-vline 
WA_CCHGIMPCTPLR_STR-BOOINTERNALVERSIONCOUNTER sy-vline 
WA_CCHGIMPCTPLR_STR-BILLOFOPERATIONSDESC sy-vline 
WA_CCHGIMPCTPLR_STR-CHANGENUMBER sy-vline 
WA_CCHGIMPCTPLR_STR-BILLOFOPERATIONSUSAGE sy-vline 
WA_CCHGIMPCTPLR_STR-BILLOFOPERATIONSSTATUS sy-vline 
WA_CCHGIMPCTPLR_STR-BILLOFOPERATIONSSTATUSDESC sy-vline 
WA_CCHGIMPCTPLR_STR-PRODUCTIONPLANT sy-vline 
WA_CCHGIMPCTPLR_STR-MINIMUMLOTSIZEQUANTITY sy-vline 
WA_CCHGIMPCTPLR_STR-MAXIMUMLOTSIZEQUANTITY sy-vline 
WA_CCHGIMPCTPLR_STR-RESPONSIBLEPLANNERGROUP sy-vline 
WA_CCHGIMPCTPLR_STR-WORKCENTERTYPECODE sy-vline 
WA_CCHGIMPCTPLR_STR-EFFECTIVITYTYPE sy-vline 
WA_CCHGIMPCTPLR_STR-VALIDITYSTARTDATE sy-vline 
WA_CCHGIMPCTPLR_STR-VALIDITYENDDATE sy-vline 
WA_CCHGIMPCTPLR_STR-BILLOFOPERATIONSUNIT sy-vline 
WA_CCHGIMPCTPLR_STR-CREATIONDATE sy-vline 
WA_CCHGIMPCTPLR_STR-CREATEDBYUSER sy-vline 
WA_CCHGIMPCTPLR_STR-LASTCHANGEDATE sy-vline 
WA_CCHGIMPCTPLR_STR-LASTCHANGEDBYUSER sy-vline 
WA_CCHGIMPCTPLR_STR-LASTUSAGEDATE sy-vline 
WA_CCHGIMPCTPLR_STR-NUMBEROFUSAGES sy-vline 
WA_CCHGIMPCTPLR_STR-BILLOFOPERATIONSTYPENAME sy-vline 
WA_CCHGIMPCTPLR_STR-BILLOFOPERATIONSUSAGEDESC sy-vline      INTO ld_text SEPARATED BY SPACE.

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