ABAP Select data from SAP table ACEV_DSASSGMTCK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ACEV_DSASSGMTCK
*  INTO TABLE @DATA(IT_ACEV_DSASSGMTCK2).
*--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_ACEV_DSASSGMTCK INDEX 1 INTO DATA(WA_ACEV_DSASSGMTCK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ACEV_DSASSGMTCK>-MANDT = 1.
<ACEV_DSASSGMTCK>-COMP = 1.
<ACEV_DSASSGMTCK>-BUKRS = 1.
<ACEV_DSASSGMTCK>-OBJID = 1.
<ACEV_DSASSGMTCK>-SUBID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ACEV_DSASSGMTCK-DATE_TO, sy-vline,
  WA_ACEV_DSASSGMTCK-ISDATEFROMEQUAL, sy-vline,
  WA_ACEV_DSASSGMTCK-ISBUSAREAEQUAL, sy-vline,
  WA_ACEV_DSASSGMTCK-ISPROFITCTREQUAL, sy-vline,
  WA_ACEV_DSASSGMTCK-ISSEGMENTEQUAL, sy-vline,
  WA_ACEV_DSASSGMTCK-ISFUNDEQUAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ACEV_DSASSGMTCK 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_ACEV_DSASSGMTCK 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_ACEV_DSASSGMTCK INTO WA_ACEV_DSASSGMTCK.


*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_ACEV_DSASSGMTCK_STR, 
MANDT TYPE STRING,
COMP TYPE STRING,
BUKRS TYPE STRING,
OBJID TYPE STRING,
SUBID TYPE STRING,
DATE_TO TYPE STRING,
ISDATEFROMEQUAL TYPE STRING,
ISBUSAREAEQUAL TYPE STRING,
ISPROFITCTREQUAL TYPE STRING,
ISSEGMENTEQUAL TYPE STRING,
ISFUNDEQUAL TYPE STRING,
ISFUNDSCTREQUAL TYPE STRING,
ISCMMTITEMEQUAL TYPE STRING,
ISFUNCAREAEQUAL TYPE STRING,
ISGRANTNBREQUAL TYPE STRING,
ISMEASUREEQUAL TYPE STRING,
ISBUDGETPERIODEQUAL TYPE STRING,
ISCOSTCENTEREQUAL TYPE STRING,
ISORDERIDEQUAL TYPE STRING,
ISWBSELEMENTEQUAL TYPE STRING,
ISCOSTOBJECTEQUAL TYPE STRING,
ISACTTYPEEQUAL TYPE STRING,
ISNETWORKEQUAL TYPE STRING,
ISROUTINGNOEQUAL TYPE STRING,
ISCOBUSPROCEQUAL TYPE STRING,
ISSALESORDEQUAL TYPE STRING,
ISSORDITEMEQUAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ACEV_DSASSGMTCK_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_ACEV_DSASSGMTCK_STR-MANDT sy-vline 
WA_ACEV_DSASSGMTCK_STR-COMP sy-vline 
WA_ACEV_DSASSGMTCK_STR-BUKRS sy-vline 
WA_ACEV_DSASSGMTCK_STR-OBJID sy-vline 
WA_ACEV_DSASSGMTCK_STR-SUBID sy-vline 
WA_ACEV_DSASSGMTCK_STR-DATE_TO sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISDATEFROMEQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISBUSAREAEQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISPROFITCTREQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISSEGMENTEQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISFUNDEQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISFUNDSCTREQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISCMMTITEMEQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISFUNCAREAEQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISGRANTNBREQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISMEASUREEQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISBUDGETPERIODEQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISCOSTCENTEREQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISORDERIDEQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISWBSELEMENTEQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISCOSTOBJECTEQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISACTTYPEEQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISNETWORKEQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISROUTINGNOEQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISCOBUSPROCEQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISSALESORDEQUAL sy-vline 
WA_ACEV_DSASSGMTCK_STR-ISSORDITEMEQUAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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