ABAP Select data from SAP table CRMST_PAYMENT_I_ERPIL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMST_PAYMENT_I_ERPIL
*  INTO TABLE @DATA(IT_CRMST_PAYMENT_I_ERPIL2).
*--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_CRMST_PAYMENT_I_ERPIL INDEX 1 INTO DATA(WA_CRMST_PAYMENT_I_ERPIL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMST_PAYMENT_I_ERPIL>-HANDLE = 1.
<CRMST_PAYMENT_I_ERPIL>-CCINS = 1.
<CRMST_PAYMENT_I_ERPIL>-CCNUM = 1.
<CRMST_PAYMENT_I_ERPIL>-DATBI = 1.
<CRMST_PAYMENT_I_ERPIL>-CVVAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMST_PAYMENT_I_ERPIL-CCNAM, sy-vline,
  WA_CRMST_PAYMENT_I_ERPIL-FAKWR, sy-vline,
  WA_CRMST_PAYMENT_I_ERPIL-CCBEG, sy-vline,
  WA_CRMST_PAYMENT_I_ERPIL-AUTWR, sy-vline,
  WA_CRMST_PAYMENT_I_ERPIL-FKSAF, sy-vline,
  WA_CRMST_PAYMENT_I_ERPIL-FKSAF_T, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMST_PAYMENT_I_ERPIL 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_CRMST_PAYMENT_I_ERPIL 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_CRMST_PAYMENT_I_ERPIL INTO WA_CRMST_PAYMENT_I_ERPIL.


*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_CRMST_PAYMENT_I_ERPIL_STR, 
HANDLE TYPE STRING,
CCINS TYPE STRING,
CCNUM TYPE STRING,
DATBI TYPE STRING,
CVVAL TYPE STRING,
CCNAM TYPE STRING,
FAKWR TYPE STRING,
CCBEG TYPE STRING,
AUTWR TYPE STRING,
FKSAF TYPE STRING,
FKSAF_T TYPE STRING,
CCAUA TYPE STRING,
CCAUA_T TYPE STRING,
CCALL TYPE STRING,
CCALL_T TYPE STRING,
REACT TYPE STRING,
REACT_T TYPE STRING,
CCPRE TYPE STRING,
AUNUM TYPE STRING,
AUTRA TYPE STRING,
AUDAT TYPE STRING,
AUTIM TYPE STRING,
AUTWV TYPE STRING,
CCWAE TYPE STRING,
MERCH TYPE STRING,
CCACT TYPE STRING,
CCOLD TYPE STRING,
RTEXT TYPE STRING,
FPLTR TYPE STRING,
CCVAL TYPE STRING,
CCARD_GUID TYPE STRING,
CCTYP_R TYPE STRING,
CCTYP_T TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMST_PAYMENT_I_ERPIL_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_CRMST_PAYMENT_I_ERPIL_STR-HANDLE sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-CCINS sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-CCNUM sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-DATBI sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-CVVAL sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-CCNAM sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-FAKWR sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-CCBEG sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-AUTWR sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-FKSAF sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-FKSAF_T sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-CCAUA sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-CCAUA_T sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-CCALL sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-CCALL_T sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-REACT sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-REACT_T sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-CCPRE sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-AUNUM sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-AUTRA sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-AUDAT sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-AUTIM sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-AUTWV sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-CCWAE sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-MERCH sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-CCACT sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-CCOLD sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-RTEXT sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-FPLTR sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-CCVAL sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-CCARD_GUID sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-CCTYP_R sy-vline 
WA_CRMST_PAYMENT_I_ERPIL_STR-CCTYP_T sy-vline      INTO ld_text SEPARATED BY SPACE.

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