ABAP Select data from SAP table FRE_IF_CONTRACT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FRE_IF_CONTRACT
*  INTO TABLE @DATA(IT_FRE_IF_CONTRACT2).
*--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_FRE_IF_CONTRACT INDEX 1 INTO DATA(WA_FRE_IF_CONTRACT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FRE_IF_CONTRACT>-MANDT = 1.
<FRE_IF_CONTRACT>-CONTRACT_HDR = 1.
<FRE_IF_CONTRACT>-CONTRACT_ITM = 1.
<FRE_IF_CONTRACT>-MATNO = 1.
<FRE_IF_CONTRACT>-FUNCTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FRE_IF_CONTRACT-IS_VARIANT, sy-vline,
  WA_FRE_IF_CONTRACT-IS_VARIANT_X, sy-vline,
  WA_FRE_IF_CONTRACT-LOCNOFR, sy-vline,
  WA_FRE_IF_CONTRACT-LOCNOFRTYPE, sy-vline,
  WA_FRE_IF_CONTRACT-LOCNOFR_X, sy-vline,
  WA_FRE_IF_CONTRACT-LOCNOTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FRE_IF_CONTRACT 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_FRE_IF_CONTRACT 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_FRE_IF_CONTRACT INTO WA_FRE_IF_CONTRACT.


*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 CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FRE_IF_CONTRACT-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FRE_IF_CONTRACT-UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_F_VALUE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FRE_IF_CONTRACT-UNIT_F_VALUE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FRE_IF_CONTRACT-UNIT_F_VALUE.
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_FRE_IF_CONTRACT_STR, 
MANDT TYPE STRING,
CONTRACT_HDR TYPE STRING,
CONTRACT_ITM TYPE STRING,
MATNO TYPE STRING,
FUNCTION TYPE STRING,
IS_VARIANT TYPE STRING,
IS_VARIANT_X TYPE STRING,
LOCNOFR TYPE STRING,
LOCNOFRTYPE TYPE STRING,
LOCNOFR_X TYPE STRING,
LOCNOTO TYPE STRING,
LOCNOTOTYPE TYPE STRING,
LOCNOTO_X TYPE STRING,
PURCHASE_ORG TYPE STRING,
PURCHASE_ORG_X TYPE STRING,
PURCHASE_GRP TYPE STRING,
PURCHASE_GRP_X TYPE STRING,
CONSIDER_PORG TYPE STRING,
CONSIDER_PORG_X TYPE STRING,
VALID_FROM TYPE STRING,
VALID_FROM_X TYPE STRING,
VALID_TO TYPE STRING,
VALID_TO_X TYPE STRING,
LOCKED TYPE STRING,
LOCKED_X TYPE STRING,
TARGET_QUANTITY TYPE STRING,
TARGET_QUANT_X TYPE STRING,
REL_TARGETQUAN TYPE STRING,
REL_TARGETQUAN_X TYPE STRING,
UNIT TYPE STRING,
QUAN_OVERBOOK TYPE STRING,
QUAN_OVERBOOK_X TYPE STRING,
TARGET_VALUE TYPE STRING,
TARGET_VALUE_X TYPE STRING,
REL_TARGET_VALUE TYPE STRING,
REL_TARGET_VAL_X TYPE STRING,
CURRENCY TYPE STRING,
VAL_FOR_UNITS TYPE STRING,
UNIT_F_VALUE TYPE STRING,
NO_OF_UNITS TYPE STRING,
ITEM_VALUE_X TYPE STRING,
VAL_OVERBOOK TYPE STRING,
VAL_OVERBOOK_X TYPE STRING,
ACCOMPLISH TYPE STRING,
REF_ID TYPE STRING,
UNIT_ISO TYPE STRING,
UNIT_F_VALUE_ISO TYPE STRING,
CURRENCY_ISO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FRE_IF_CONTRACT_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_FRE_IF_CONTRACT_STR-MANDT sy-vline 
WA_FRE_IF_CONTRACT_STR-CONTRACT_HDR sy-vline 
WA_FRE_IF_CONTRACT_STR-CONTRACT_ITM sy-vline 
WA_FRE_IF_CONTRACT_STR-MATNO sy-vline 
WA_FRE_IF_CONTRACT_STR-FUNCTION sy-vline 
WA_FRE_IF_CONTRACT_STR-IS_VARIANT sy-vline 
WA_FRE_IF_CONTRACT_STR-IS_VARIANT_X sy-vline 
WA_FRE_IF_CONTRACT_STR-LOCNOFR sy-vline 
WA_FRE_IF_CONTRACT_STR-LOCNOFRTYPE sy-vline 
WA_FRE_IF_CONTRACT_STR-LOCNOFR_X sy-vline 
WA_FRE_IF_CONTRACT_STR-LOCNOTO sy-vline 
WA_FRE_IF_CONTRACT_STR-LOCNOTOTYPE sy-vline 
WA_FRE_IF_CONTRACT_STR-LOCNOTO_X sy-vline 
WA_FRE_IF_CONTRACT_STR-PURCHASE_ORG sy-vline 
WA_FRE_IF_CONTRACT_STR-PURCHASE_ORG_X sy-vline 
WA_FRE_IF_CONTRACT_STR-PURCHASE_GRP sy-vline 
WA_FRE_IF_CONTRACT_STR-PURCHASE_GRP_X sy-vline 
WA_FRE_IF_CONTRACT_STR-CONSIDER_PORG sy-vline 
WA_FRE_IF_CONTRACT_STR-CONSIDER_PORG_X sy-vline 
WA_FRE_IF_CONTRACT_STR-VALID_FROM sy-vline 
WA_FRE_IF_CONTRACT_STR-VALID_FROM_X sy-vline 
WA_FRE_IF_CONTRACT_STR-VALID_TO sy-vline 
WA_FRE_IF_CONTRACT_STR-VALID_TO_X sy-vline 
WA_FRE_IF_CONTRACT_STR-LOCKED sy-vline 
WA_FRE_IF_CONTRACT_STR-LOCKED_X sy-vline 
WA_FRE_IF_CONTRACT_STR-TARGET_QUANTITY sy-vline 
WA_FRE_IF_CONTRACT_STR-TARGET_QUANT_X sy-vline 
WA_FRE_IF_CONTRACT_STR-REL_TARGETQUAN sy-vline 
WA_FRE_IF_CONTRACT_STR-REL_TARGETQUAN_X sy-vline 
WA_FRE_IF_CONTRACT_STR-UNIT sy-vline 
WA_FRE_IF_CONTRACT_STR-QUAN_OVERBOOK sy-vline 
WA_FRE_IF_CONTRACT_STR-QUAN_OVERBOOK_X sy-vline 
WA_FRE_IF_CONTRACT_STR-TARGET_VALUE sy-vline 
WA_FRE_IF_CONTRACT_STR-TARGET_VALUE_X sy-vline 
WA_FRE_IF_CONTRACT_STR-REL_TARGET_VALUE sy-vline 
WA_FRE_IF_CONTRACT_STR-REL_TARGET_VAL_X sy-vline 
WA_FRE_IF_CONTRACT_STR-CURRENCY sy-vline 
WA_FRE_IF_CONTRACT_STR-VAL_FOR_UNITS sy-vline 
WA_FRE_IF_CONTRACT_STR-UNIT_F_VALUE sy-vline 
WA_FRE_IF_CONTRACT_STR-NO_OF_UNITS sy-vline 
WA_FRE_IF_CONTRACT_STR-ITEM_VALUE_X sy-vline 
WA_FRE_IF_CONTRACT_STR-VAL_OVERBOOK sy-vline 
WA_FRE_IF_CONTRACT_STR-VAL_OVERBOOK_X sy-vline 
WA_FRE_IF_CONTRACT_STR-ACCOMPLISH sy-vline 
WA_FRE_IF_CONTRACT_STR-REF_ID sy-vline 
WA_FRE_IF_CONTRACT_STR-UNIT_ISO sy-vline 
WA_FRE_IF_CONTRACT_STR-UNIT_F_VALUE_ISO sy-vline 
WA_FRE_IF_CONTRACT_STR-CURRENCY_ISO sy-vline      INTO ld_text SEPARATED BY SPACE.

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