ABAP Select data from SAP table ICAGTRMANDCST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICAGTRMANDCST
*  INTO TABLE @DATA(IT_ICAGTRMANDCST2).
*--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_ICAGTRMANDCST INDEX 1 INTO DATA(WA_ICAGTRMANDCST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICAGTRMANDCST>-MANDT = 1.
<ICAGTRMANDCST>-AGRMTTERMINATIONANDCOSTUUID = 1.
<ICAGTRMANDCST>-AGREEMENTTERMNANDCOSTLINKUUID = 1.
<ICAGTRMANDCST>-AGREEMENTCOSTTYPE = 1.
<ICAGTRMANDCST>-AGREEMENTCOSTDUEDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICAGTRMANDCST-AGREEMENTTERMNRIGHTTYPE, sy-vline,
  WA_ICAGTRMANDCST-AGREEMENTTERMINATIONREASON, sy-vline,
  WA_ICAGTRMANDCST-AGRMTTERMINATIONPOSSIBLEDATE, sy-vline,
  WA_ICAGTRMANDCST-AGREEMENTTERMINATIONNOTICEDATE, sy-vline,
  WA_ICAGTRMANDCST-AGRMTTERMNANDCOSTAMT, sy-vline,
  WA_ICAGTRMANDCST-AGRMTTERMNANDCOSTCRCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICAGTRMANDCST 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_ICAGTRMANDCST 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_ICAGTRMANDCST INTO WA_ICAGTRMANDCST.


*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_ICAGTRMANDCST_STR, 
MANDT TYPE STRING,
AGRMTTERMINATIONANDCOSTUUID TYPE STRING,
AGREEMENTTERMNANDCOSTLINKUUID TYPE STRING,
AGREEMENTCOSTTYPE TYPE STRING,
AGREEMENTCOSTDUEDATE TYPE STRING,
AGREEMENTTERMNRIGHTTYPE TYPE STRING,
AGREEMENTTERMINATIONREASON TYPE STRING,
AGRMTTERMINATIONPOSSIBLEDATE TYPE STRING,
AGREEMENTTERMINATIONNOTICEDATE TYPE STRING,
AGRMTTERMNANDCOSTAMT TYPE STRING,
AGRMTTERMNANDCOSTCRCY TYPE STRING,
AGRMTTERMNANDCOSTFRQCYUNIT TYPE STRING,
AGRMTTERMNANDCOSTFRQCYPERIOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICAGTRMANDCST_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_ICAGTRMANDCST_STR-MANDT sy-vline 
WA_ICAGTRMANDCST_STR-AGRMTTERMINATIONANDCOSTUUID sy-vline 
WA_ICAGTRMANDCST_STR-AGREEMENTTERMNANDCOSTLINKUUID sy-vline 
WA_ICAGTRMANDCST_STR-AGREEMENTCOSTTYPE sy-vline 
WA_ICAGTRMANDCST_STR-AGREEMENTCOSTDUEDATE sy-vline 
WA_ICAGTRMANDCST_STR-AGREEMENTTERMNRIGHTTYPE sy-vline 
WA_ICAGTRMANDCST_STR-AGREEMENTTERMINATIONREASON sy-vline 
WA_ICAGTRMANDCST_STR-AGRMTTERMINATIONPOSSIBLEDATE sy-vline 
WA_ICAGTRMANDCST_STR-AGREEMENTTERMINATIONNOTICEDATE sy-vline 
WA_ICAGTRMANDCST_STR-AGRMTTERMNANDCOSTAMT sy-vline 
WA_ICAGTRMANDCST_STR-AGRMTTERMNANDCOSTCRCY sy-vline 
WA_ICAGTRMANDCST_STR-AGRMTTERMNANDCOSTFRQCYUNIT sy-vline 
WA_ICAGTRMANDCST_STR-AGRMTTERMNANDCOSTFRQCYPERIOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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