ABAP Select data from SAP table ISCHRGPLNPRTBLPARAMETERTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISCHRGPLNPRTBLPARAMETERTP
*  INTO TABLE @DATA(IT_ISCHRGPLNPRTBLPARAMETERTP2).
*--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_ISCHRGPLNPRTBLPARAMETERTP INDEX 1 INTO DATA(WA_ISCHRGPLNPRTBLPARAMETERTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISCHRGPLNPRTBLPARAMETERTP>-KEY = 1.
<ISCHRGPLNPRTBLPARAMETERTP>-PARENT_KEY = 1.
<ISCHRGPLNPRTBLPARAMETERTP>-ROOT_KEY = 1.
<ISCHRGPLNPRTBLPARAMETERTP>-CREATEDBYUSER = 1.
<ISCHRGPLNPRTBLPARAMETERTP>-CREATIONDATETIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISCHRGPLNPRTBLPARAMETERTP-LASTCHANGEDBYUSER, sy-vline,
  WA_ISCHRGPLNPRTBLPARAMETERTP-LASTCHANGEDATETIME, sy-vline,
  WA_ISCHRGPLNPRTBLPARAMETERTP-CHARGEPLANPARAMETERID, sy-vline,
  WA_ISCHRGPLNPRTBLPARAMETERTP-CHARGEPLANPARAMETERDESCRIPTION, sy-vline,
  WA_ISCHRGPLNPRTBLPARAMETERTP-CHARGEPLANPARAMETERTYPE, sy-vline,
  WA_ISCHRGPLNPRTBLPARAMETERTP-CHARGEPLANPARAMETERUSAGE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISCHRGPLNPRTBLPARAMETERTP 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_ISCHRGPLNPRTBLPARAMETERTP 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_ISCHRGPLNPRTBLPARAMETERTP INTO WA_ISCHRGPLNPRTBLPARAMETERTP.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_ISCHRGPLNPRTBLPARAMETERTP_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
CHARGEPLANPARAMETERID TYPE STRING,
CHARGEPLANPARAMETERDESCRIPTION TYPE STRING,
CHARGEPLANPARAMETERTYPE TYPE STRING,
CHARGEPLANPARAMETERUSAGE TYPE STRING,
CHARGEPLANPARAMETERUSEVALUE TYPE STRING,
CHRGPLANPARAMETERNUMERICVALUE TYPE STRING,
CHRGPLNPARAMNMRCDEFAULTVALUE TYPE STRING,
CHARGEPLANPARAMETERSTRINGVALUE TYPE STRING,
CHRGPLNPARAMSTRINGDEFAULTVALUE TYPE STRING,
CHARGEPLANPARAMETERDATEVALUE TYPE STRING,
CHRGPLNPARAMDATEDEFAULTVALUE TYPE STRING,
BRFFUNCTIONUUID TYPE STRING,
CHARGEPLANPARAMETERISMANDATORY TYPE STRING,
CONVERGENTCHARGINGTABLECLASSID TYPE STRING,
CHARACTERISTIC TYPE STRING,
ALLOWANCEDEFINITIONGROUPUUID TYPE STRING,
ALLOWANCEDEFINITIONGROUPID TYPE STRING,
CONDITIONTYPE TYPE STRING,
VARIANTCONDITION TYPE STRING,
CHRGPLNPARAMPRICEISMANDATORY TYPE STRING,
ACTIVEUUID TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
ISACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISCHRGPLNPRTBLPARAMETERTP_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_ISCHRGPLNPRTBLPARAMETERTP_STR-KEY sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-PARENT_KEY sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-ROOT_KEY sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CREATEDBYUSER sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CREATIONDATETIME sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-LASTCHANGEDBYUSER sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-LASTCHANGEDATETIME sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CHARGEPLANPARAMETERID sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CHARGEPLANPARAMETERDESCRIPTION sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CHARGEPLANPARAMETERTYPE sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CHARGEPLANPARAMETERUSAGE sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CHARGEPLANPARAMETERUSEVALUE sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CHRGPLANPARAMETERNUMERICVALUE sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CHRGPLNPARAMNMRCDEFAULTVALUE sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CHARGEPLANPARAMETERSTRINGVALUE sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CHRGPLNPARAMSTRINGDEFAULTVALUE sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CHARGEPLANPARAMETERDATEVALUE sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CHRGPLNPARAMDATEDEFAULTVALUE sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-BRFFUNCTIONUUID sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CHARGEPLANPARAMETERISMANDATORY sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CONVERGENTCHARGINGTABLECLASSID sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CHARACTERISTIC sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-ALLOWANCEDEFINITIONGROUPUUID sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-ALLOWANCEDEFINITIONGROUPID sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CONDITIONTYPE sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-VARIANTCONDITION sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-CHRGPLNPARAMPRICEISMANDATORY sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-ACTIVEUUID sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-HASACTIVEENTITY sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISCHRGPLNPRTBLPARAMETERTP_STR-ISACTIVEENTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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