ABAP Select data from SAP table IACMDPQSCHARSDET into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IACMDPQSCHARSDET
*  INTO TABLE @DATA(IT_IACMDPQSCHARSDET2).
*--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_IACMDPQSCHARSDET INDEX 1 INTO DATA(WA_IACMDPQSCHARSDET2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IACMDPQSCHARSDET>-MANDT = 1.
<IACMDPQSCHARSDET>-DISCPREMQTYSCHEDULEUUID = 1.
<IACMDPQSCHARSDET>-DISCPREMQTYCHARCSUUID = 1.
<IACMDPQSCHARSDET>-DISCPREMQTYINTCHAR = 1.
<IACMDPQSCHARSDET>-ACMDISCPREMQLTYSCHEDCHARTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IACMDPQSCHARSDET-DISCPREMQTYAPPLIESTOCODE, sy-vline,
  WA_IACMDPQSCHARSDET-ACMSETTLEMENTSEQUENCENMBR, sy-vline,
  WA_IACMDPQSCHARSDET-DISCPREMQTYRATETYPE, sy-vline,
  WA_IACMDPQSCHARSDET-ACMSETTLMTUNITFULLSHPTQTYUNIT, sy-vline,
  WA_IACMDPQSCHARSDET-DISCPREMQTYTYPE, sy-vline,
  WA_IACMDPQSCHARSDET-DISCPREMQTYCALCMETHODCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IACMDPQSCHARSDET 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_IACMDPQSCHARSDET 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_IACMDPQSCHARSDET INTO WA_IACMDPQSCHARSDET.


*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 ATINN, internal->external for field DISCPREMQTYINTCHAR
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_IACMDPQSCHARSDET-DISCPREMQTYINTCHAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IACMDPQSCHARSDET-DISCPREMQTYINTCHAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ACMSETTLMTUNITFULLSHPTQTYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IACMDPQSCHARSDET-ACMSETTLMTUNITFULLSHPTQTYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IACMDPQSCHARSDET-ACMSETTLMTUNITFULLSHPTQTYUNIT.
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_IACMDPQSCHARSDET_STR, 
MANDT TYPE STRING,
DISCPREMQTYSCHEDULEUUID TYPE STRING,
DISCPREMQTYCHARCSUUID TYPE STRING,
DISCPREMQTYINTCHAR TYPE STRING,
ACMDISCPREMQLTYSCHEDCHARTYPE TYPE STRING,
DISCPREMQTYAPPLIESTOCODE TYPE STRING,
ACMSETTLEMENTSEQUENCENMBR TYPE STRING,
DISCPREMQTYRATETYPE TYPE STRING,
ACMSETTLMTUNITFULLSHPTQTYUNIT TYPE STRING,
DISCPREMQTYTYPE TYPE STRING,
DISCPREMQTYCALCMETHODCODE TYPE STRING,
DISCPREMQTYAVGMETHOD TYPE STRING,
DISCPREMQTYROUNDINGDIRECTION TYPE STRING,
CHARCDECIMALS TYPE STRING,
DISCPREMANALYSISREQ TYPE STRING,
DISCPREMQTYRULE TYPE STRING,
ACMDISCPREMQLTYSCHEDCONFMPRINT TYPE STRING,
DISCPREMQTYCONTRPRICETYPE TYPE STRING,
ACMDISCPREMQLTYSCHEDISSTOPAPPL TYPE STRING,
ACMDISCPREMQTYISSTOPSETTLEMENT TYPE STRING,
ACMDISCPREMQLTYSCHEDBASE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IACMDPQSCHARSDET_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_IACMDPQSCHARSDET_STR-MANDT sy-vline 
WA_IACMDPQSCHARSDET_STR-DISCPREMQTYSCHEDULEUUID sy-vline 
WA_IACMDPQSCHARSDET_STR-DISCPREMQTYCHARCSUUID sy-vline 
WA_IACMDPQSCHARSDET_STR-DISCPREMQTYINTCHAR sy-vline 
WA_IACMDPQSCHARSDET_STR-ACMDISCPREMQLTYSCHEDCHARTYPE sy-vline 
WA_IACMDPQSCHARSDET_STR-DISCPREMQTYAPPLIESTOCODE sy-vline 
WA_IACMDPQSCHARSDET_STR-ACMSETTLEMENTSEQUENCENMBR sy-vline 
WA_IACMDPQSCHARSDET_STR-DISCPREMQTYRATETYPE sy-vline 
WA_IACMDPQSCHARSDET_STR-ACMSETTLMTUNITFULLSHPTQTYUNIT sy-vline 
WA_IACMDPQSCHARSDET_STR-DISCPREMQTYTYPE sy-vline 
WA_IACMDPQSCHARSDET_STR-DISCPREMQTYCALCMETHODCODE sy-vline 
WA_IACMDPQSCHARSDET_STR-DISCPREMQTYAVGMETHOD sy-vline 
WA_IACMDPQSCHARSDET_STR-DISCPREMQTYROUNDINGDIRECTION sy-vline 
WA_IACMDPQSCHARSDET_STR-CHARCDECIMALS sy-vline 
WA_IACMDPQSCHARSDET_STR-DISCPREMANALYSISREQ sy-vline 
WA_IACMDPQSCHARSDET_STR-DISCPREMQTYRULE sy-vline 
WA_IACMDPQSCHARSDET_STR-ACMDISCPREMQLTYSCHEDCONFMPRINT sy-vline 
WA_IACMDPQSCHARSDET_STR-DISCPREMQTYCONTRPRICETYPE sy-vline 
WA_IACMDPQSCHARSDET_STR-ACMDISCPREMQLTYSCHEDISSTOPAPPL sy-vline 
WA_IACMDPQSCHARSDET_STR-ACMDISCPREMQTYISSTOPSETTLEMENT sy-vline 
WA_IACMDPQSCHARSDET_STR-ACMDISCPREMQLTYSCHEDBASE sy-vline      INTO ld_text SEPARATED BY SPACE.

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