ABAP Select data from SAP table IMNLACCROBJ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMNLACCROBJ
*  INTO TABLE @DATA(IT_IMNLACCROBJ2).
*--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_IMNLACCROBJ INDEX 1 INTO DATA(WA_IMNLACCROBJ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMNLACCROBJ>-MANDT = 1.
<IMNLACCROBJ>-COMPANYCODE = 1.
<IMNLACCROBJ>-ACCRUALOBJECT = 1.
<IMNLACCROBJ>-ACCRUALSUBOBJECT = 1.
<IMNLACCROBJ>-MANUALACCRUALSACCROBJECTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMNLACCROBJ-MANUALACCRUALSACCRSUBOBJTYPE, sy-vline,
  WA_IMNLACCROBJ-MANUALACCRUALSACCROBJECT, sy-vline,
  WA_IMNLACCROBJ-ACCRUALOBJECTDESCRIPTION, sy-vline,
  WA_IMNLACCROBJ-PERSONRESPONSIBLENAME, sy-vline,
  WA_IMNLACCROBJ-CREATEDBYUSER, sy-vline,
  WA_IMNLACCROBJ-ACCRSUBOBJPAUSEDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMNLACCROBJ 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_IMNLACCROBJ 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_IMNLACCROBJ INTO WA_IMNLACCROBJ.


*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 MANUALACCRUALSACCROBJECT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMNLACCROBJ-MANUALACCRUALSACCROBJECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMNLACCROBJ-MANUALACCRUALSACCROBJECT.
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_IMNLACCROBJ_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCRUALOBJECT TYPE STRING,
ACCRUALSUBOBJECT TYPE STRING,
MANUALACCRUALSACCROBJECTTYPE TYPE STRING,
MANUALACCRUALSACCRSUBOBJTYPE TYPE STRING,
MANUALACCRUALSACCROBJECT TYPE STRING,
ACCRUALOBJECTDESCRIPTION TYPE STRING,
PERSONRESPONSIBLENAME TYPE STRING,
CREATEDBYUSER TYPE STRING,
ACCRSUBOBJPAUSEDATE TYPE STRING,
ACCRSUBOBJSUSPENSIONDATE TYPE STRING,
ACCRSUBOBJPREMATUREFINISHDATE TYPE STRING,
ACCRSUBOBJECTLIFECYCLESTATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMNLACCROBJ_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_IMNLACCROBJ_STR-MANDT sy-vline 
WA_IMNLACCROBJ_STR-COMPANYCODE sy-vline 
WA_IMNLACCROBJ_STR-ACCRUALOBJECT sy-vline 
WA_IMNLACCROBJ_STR-ACCRUALSUBOBJECT sy-vline 
WA_IMNLACCROBJ_STR-MANUALACCRUALSACCROBJECTTYPE sy-vline 
WA_IMNLACCROBJ_STR-MANUALACCRUALSACCRSUBOBJTYPE sy-vline 
WA_IMNLACCROBJ_STR-MANUALACCRUALSACCROBJECT sy-vline 
WA_IMNLACCROBJ_STR-ACCRUALOBJECTDESCRIPTION sy-vline 
WA_IMNLACCROBJ_STR-PERSONRESPONSIBLENAME sy-vline 
WA_IMNLACCROBJ_STR-CREATEDBYUSER sy-vline 
WA_IMNLACCROBJ_STR-ACCRSUBOBJPAUSEDATE sy-vline 
WA_IMNLACCROBJ_STR-ACCRSUBOBJSUSPENSIONDATE sy-vline 
WA_IMNLACCROBJ_STR-ACCRSUBOBJPREMATUREFINISHDATE sy-vline 
WA_IMNLACCROBJ_STR-ACCRSUBOBJECTLIFECYCLESTATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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