ABAP Select data from SAP table IACEITCRCYSTTG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IACEITCRCYSTTG
*  INTO TABLE @DATA(IT_IACEITCRCYSTTG2).
*--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_IACEITCRCYSTTG INDEX 1 INTO DATA(WA_IACEITCRCYSTTG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IACEITCRCYSTTG>-MANDT = 1.
<IACEITCRCYSTTG>-ACCRUALENGINEACCRUALOBJECTTYPE = 1.
<IACEITCRCYSTTG>-ACCRUALITEMTYPE = 1.
<IACEITCRCYSTTG>-COMPANYCODE = 1.
<IACEITCRCYSTTG>-LEDGER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IACEITCRCYSTTG-CURRENCYROLE, sy-vline,
  WA_IACEITCRCYSTTG-PLANACCRUALITEMTYPE, sy-vline,
  WA_IACEITCRCYSTTG-ACTUALACCRUALITEMTYPE, sy-vline,
  WA_IACEITCRCYSTTG-ACCRUALITEMTYPECATEGORY, sy-vline,
  WA_IACEITCRCYSTTG-REVIEWPROCESSISACTIVE, sy-vline,
  WA_IACEITCRCYSTTG-REVIEWAPPROVALACCRUALTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IACEITCRCYSTTG 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_IACEITCRCYSTTG 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_IACEITCRCYSTTG INTO WA_IACEITCRCYSTTG.


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

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

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

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

*Conversion exit ALPHA, internal->external for field REVIEWAPPROVALACCRUALTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IACEITCRCYSTTG-REVIEWAPPROVALACCRUALTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IACEITCRCYSTTG-REVIEWAPPROVALACCRUALTYPE.
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_IACEITCRCYSTTG_STR, 
MANDT TYPE STRING,
ACCRUALENGINEACCRUALOBJECTTYPE TYPE STRING,
ACCRUALITEMTYPE TYPE STRING,
COMPANYCODE TYPE STRING,
LEDGER TYPE STRING,
CURRENCYROLE TYPE STRING,
PLANACCRUALITEMTYPE TYPE STRING,
ACTUALACCRUALITEMTYPE TYPE STRING,
ACCRUALITEMTYPECATEGORY TYPE STRING,
REVIEWPROCESSISACTIVE TYPE STRING,
REVIEWAPPROVALACCRUALTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IACEITCRCYSTTG_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_IACEITCRCYSTTG_STR-MANDT sy-vline 
WA_IACEITCRCYSTTG_STR-ACCRUALENGINEACCRUALOBJECTTYPE sy-vline 
WA_IACEITCRCYSTTG_STR-ACCRUALITEMTYPE sy-vline 
WA_IACEITCRCYSTTG_STR-COMPANYCODE sy-vline 
WA_IACEITCRCYSTTG_STR-LEDGER sy-vline 
WA_IACEITCRCYSTTG_STR-CURRENCYROLE sy-vline 
WA_IACEITCRCYSTTG_STR-PLANACCRUALITEMTYPE sy-vline 
WA_IACEITCRCYSTTG_STR-ACTUALACCRUALITEMTYPE sy-vline 
WA_IACEITCRCYSTTG_STR-ACCRUALITEMTYPECATEGORY sy-vline 
WA_IACEITCRCYSTTG_STR-REVIEWPROCESSISACTIVE sy-vline 
WA_IACEITCRCYSTTG_STR-REVIEWAPPROVALACCRUALTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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