ABAP Select data from SAP table ILCACTDOCHDRD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ILCACTDOCHDRD
*  INTO TABLE @DATA(IT_ILCACTDOCHDRD2).
*--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_ILCACTDOCHDRD INDEX 1 INTO DATA(WA_ILCACTDOCHDRD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ILCACTDOCHDRD>-MANDT = 1.
<ILCACTDOCHDRD>-COMPANYCODE = 1.
<ILCACTDOCHDRD>-POSTEDDOCUMENTID = 1.
<ILCACTDOCHDRD>-LOANCONTRACTID = 1.
<ILCACTDOCHDRD>-LOANCLASSFCTNNMBR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ILCACTDOCHDRD-LOANLIFECYCLESTATUS, sy-vline,
  WA_ILCACTDOCHDRD-LOANACCTASSGMTREF, sy-vline,
  WA_ILCACTDOCHDRD-CSHFLWITMGLACCOUNT, sy-vline,
  WA_ILCACTDOCHDRD-LOANBUSINESSAREA, sy-vline,
  WA_ILCACTDOCHDRD-CASHFLOWITEMPOSTINGDATE, sy-vline,
  WA_ILCACTDOCHDRD-CASHFLOWITEMREVERSALSTATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ILCACTDOCHDRD 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_ILCACTDOCHDRD 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_ILCACTDOCHDRD INTO WA_ILCACTDOCHDRD.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field ACCOUNTINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ILCACTDOCHDRD-ACCOUNTINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ILCACTDOCHDRD-ACCOUNTINGDOCUMENT.
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_ILCACTDOCHDRD_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
POSTEDDOCUMENTID TYPE STRING,
LOANCONTRACTID TYPE STRING,
LOANCLASSFCTNNMBR TYPE STRING,
LOANLIFECYCLESTATUS TYPE STRING,
LOANACCTASSGMTREF TYPE STRING,
CSHFLWITMGLACCOUNT TYPE STRING,
LOANBUSINESSAREA TYPE STRING,
CASHFLOWITEMPOSTINGDATE TYPE STRING,
CASHFLOWITEMREVERSALSTATUS TYPE STRING,
REVERSEDOCUMENT TYPE STRING,
WVRWRITEOFFDOCUMENT TYPE STRING,
CSHFLWITMTRANSFTOFINACCTGDTE TYPE STRING,
CASHFLOWITEMENTEREDBY TYPE STRING,
CASHFLOWITEMENTEREDDATE TYPE STRING,
CASHFLOWITEMENTEREDTIME TYPE STRING,
CASHFLOWITEMENTEREDSOURCE TYPE STRING,
CSHFLWITMBUSTRANSNMBR TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ILCACTDOCHDRD_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_ILCACTDOCHDRD_STR-MANDT sy-vline 
WA_ILCACTDOCHDRD_STR-COMPANYCODE sy-vline 
WA_ILCACTDOCHDRD_STR-POSTEDDOCUMENTID sy-vline 
WA_ILCACTDOCHDRD_STR-LOANCONTRACTID sy-vline 
WA_ILCACTDOCHDRD_STR-LOANCLASSFCTNNMBR sy-vline 
WA_ILCACTDOCHDRD_STR-LOANLIFECYCLESTATUS sy-vline 
WA_ILCACTDOCHDRD_STR-LOANACCTASSGMTREF sy-vline 
WA_ILCACTDOCHDRD_STR-CSHFLWITMGLACCOUNT sy-vline 
WA_ILCACTDOCHDRD_STR-LOANBUSINESSAREA sy-vline 
WA_ILCACTDOCHDRD_STR-CASHFLOWITEMPOSTINGDATE sy-vline 
WA_ILCACTDOCHDRD_STR-CASHFLOWITEMREVERSALSTATUS sy-vline 
WA_ILCACTDOCHDRD_STR-REVERSEDOCUMENT sy-vline 
WA_ILCACTDOCHDRD_STR-WVRWRITEOFFDOCUMENT sy-vline 
WA_ILCACTDOCHDRD_STR-CSHFLWITMTRANSFTOFINACCTGDTE sy-vline 
WA_ILCACTDOCHDRD_STR-CASHFLOWITEMENTEREDBY sy-vline 
WA_ILCACTDOCHDRD_STR-CASHFLOWITEMENTEREDDATE sy-vline 
WA_ILCACTDOCHDRD_STR-CASHFLOWITEMENTEREDTIME sy-vline 
WA_ILCACTDOCHDRD_STR-CASHFLOWITEMENTEREDSOURCE sy-vline 
WA_ILCACTDOCHDRD_STR-CSHFLWITMBUSTRANSNMBR sy-vline 
WA_ILCACTDOCHDRD_STR-ACCOUNTINGDOCUMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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