ABAP Select data from SAP table ICAIMPLINEITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICAIMPLINEITEM
*  INTO TABLE @DATA(IT_ICAIMPLINEITEM2).
*--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_ICAIMPLINEITEM INDEX 1 INTO DATA(WA_ICAIMPLINEITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICAIMPLINEITEM>-MANDT = 1.
<ICAIMPLINEITEM>-LEDGER = 1.
<ICAIMPLINEITEM>-COMPANYCODE = 1.
<ICAIMPLINEITEM>-FISCALYEAR = 1.
<ICAIMPLINEITEM>-FISCALPERIOD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICAIMPLINEITEM-GLACCOUNT, sy-vline,
  WA_ICAIMPLINEITEM-CUSTOMER, sy-vline,
  WA_ICAIMPLINEITEM-BUSINESSPARTNER, sy-vline,
  WA_ICAIMPLINEITEM-COUNTRY, sy-vline,
  WA_ICAIMPLINEITEM-CREDITRISKCLASS, sy-vline,
  WA_ICAIMPLINEITEM-GENERALLEDGERAGINGINCREMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICAIMPLINEITEM 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_ICAIMPLINEITEM 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_ICAIMPLINEITEM INTO WA_ICAIMPLINEITEM.


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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ICAIMPLINEITEM-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICAIMPLINEITEM-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PARTNERSEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICAIMPLINEITEM-PARTNERSEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICAIMPLINEITEM-PARTNERSEGMENT.
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_ICAIMPLINEITEM_STR, 
MANDT TYPE STRING,
LEDGER TYPE STRING,
COMPANYCODE TYPE STRING,
FISCALYEAR TYPE STRING,
FISCALPERIOD TYPE STRING,
GLACCOUNT TYPE STRING,
CUSTOMER TYPE STRING,
BUSINESSPARTNER TYPE STRING,
COUNTRY TYPE STRING,
CREDITRISKCLASS TYPE STRING,
GENERALLEDGERAGINGINCREMENT TYPE STRING,
COSTCENTER TYPE STRING,
PROFITCENTER TYPE STRING,
FUNCTIONALAREA TYPE STRING,
BUSINESSAREA TYPE STRING,
CONTROLLINGAREA TYPE STRING,
SEGMENT TYPE STRING,
PARTNERCOSTCENTER TYPE STRING,
PARTNERPROFITCENTER TYPE STRING,
PARTNERFUNCTIONALAREA TYPE STRING,
PARTNERBUSINESSAREA TYPE STRING,
PARTNERCOMPANY TYPE STRING,
PARTNERSEGMENT TYPE STRING,
SUBLEDGERACCTLINEITEMTYPE TYPE STRING,
AMOUNTINCOMPANYCODECURRENCY TYPE STRING,
AMOUNTINGLOBALCURRENCY TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY1 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY2 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY3 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY4 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY5 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY6 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY7 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY8 TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
GLOBALCURRENCY TYPE STRING,
FREEDEFINEDCURRENCY1 TYPE STRING,
FREEDEFINEDCURRENCY2 TYPE STRING,
FREEDEFINEDCURRENCY3 TYPE STRING,
FREEDEFINEDCURRENCY4 TYPE STRING,
FREEDEFINEDCURRENCY5 TYPE STRING,
FREEDEFINEDCURRENCY6 TYPE STRING,
FREEDEFINEDCURRENCY7 TYPE STRING,
FREEDEFINEDCURRENCY8 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICAIMPLINEITEM_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_ICAIMPLINEITEM_STR-MANDT sy-vline 
WA_ICAIMPLINEITEM_STR-LEDGER sy-vline 
WA_ICAIMPLINEITEM_STR-COMPANYCODE sy-vline 
WA_ICAIMPLINEITEM_STR-FISCALYEAR sy-vline 
WA_ICAIMPLINEITEM_STR-FISCALPERIOD sy-vline 
WA_ICAIMPLINEITEM_STR-GLACCOUNT sy-vline 
WA_ICAIMPLINEITEM_STR-CUSTOMER sy-vline 
WA_ICAIMPLINEITEM_STR-BUSINESSPARTNER sy-vline 
WA_ICAIMPLINEITEM_STR-COUNTRY sy-vline 
WA_ICAIMPLINEITEM_STR-CREDITRISKCLASS sy-vline 
WA_ICAIMPLINEITEM_STR-GENERALLEDGERAGINGINCREMENT sy-vline 
WA_ICAIMPLINEITEM_STR-COSTCENTER sy-vline 
WA_ICAIMPLINEITEM_STR-PROFITCENTER sy-vline 
WA_ICAIMPLINEITEM_STR-FUNCTIONALAREA sy-vline 
WA_ICAIMPLINEITEM_STR-BUSINESSAREA sy-vline 
WA_ICAIMPLINEITEM_STR-CONTROLLINGAREA sy-vline 
WA_ICAIMPLINEITEM_STR-SEGMENT sy-vline 
WA_ICAIMPLINEITEM_STR-PARTNERCOSTCENTER sy-vline 
WA_ICAIMPLINEITEM_STR-PARTNERPROFITCENTER sy-vline 
WA_ICAIMPLINEITEM_STR-PARTNERFUNCTIONALAREA sy-vline 
WA_ICAIMPLINEITEM_STR-PARTNERBUSINESSAREA sy-vline 
WA_ICAIMPLINEITEM_STR-PARTNERCOMPANY sy-vline 
WA_ICAIMPLINEITEM_STR-PARTNERSEGMENT sy-vline 
WA_ICAIMPLINEITEM_STR-SUBLEDGERACCTLINEITEMTYPE sy-vline 
WA_ICAIMPLINEITEM_STR-AMOUNTINCOMPANYCODECURRENCY sy-vline 
WA_ICAIMPLINEITEM_STR-AMOUNTINGLOBALCURRENCY sy-vline 
WA_ICAIMPLINEITEM_STR-AMOUNTINFREEDEFINEDCURRENCY1 sy-vline 
WA_ICAIMPLINEITEM_STR-AMOUNTINFREEDEFINEDCURRENCY2 sy-vline 
WA_ICAIMPLINEITEM_STR-AMOUNTINFREEDEFINEDCURRENCY3 sy-vline 
WA_ICAIMPLINEITEM_STR-AMOUNTINFREEDEFINEDCURRENCY4 sy-vline 
WA_ICAIMPLINEITEM_STR-AMOUNTINFREEDEFINEDCURRENCY5 sy-vline 
WA_ICAIMPLINEITEM_STR-AMOUNTINFREEDEFINEDCURRENCY6 sy-vline 
WA_ICAIMPLINEITEM_STR-AMOUNTINFREEDEFINEDCURRENCY7 sy-vline 
WA_ICAIMPLINEITEM_STR-AMOUNTINFREEDEFINEDCURRENCY8 sy-vline 
WA_ICAIMPLINEITEM_STR-COMPANYCODECURRENCY sy-vline 
WA_ICAIMPLINEITEM_STR-GLOBALCURRENCY sy-vline 
WA_ICAIMPLINEITEM_STR-FREEDEFINEDCURRENCY1 sy-vline 
WA_ICAIMPLINEITEM_STR-FREEDEFINEDCURRENCY2 sy-vline 
WA_ICAIMPLINEITEM_STR-FREEDEFINEDCURRENCY3 sy-vline 
WA_ICAIMPLINEITEM_STR-FREEDEFINEDCURRENCY4 sy-vline 
WA_ICAIMPLINEITEM_STR-FREEDEFINEDCURRENCY5 sy-vline 
WA_ICAIMPLINEITEM_STR-FREEDEFINEDCURRENCY6 sy-vline 
WA_ICAIMPLINEITEM_STR-FREEDEFINEDCURRENCY7 sy-vline 
WA_ICAIMPLINEITEM_STR-FREEDEFINEDCURRENCY8 sy-vline      INTO ld_text SEPARATED BY SPACE.

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