ABAP Select data from SAP table /ACCGO/CAK_S_MNTNCONTR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ACCGO/CAK_S_MNTNCONTR 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 /ACCGO/CAK_S_MNTNCONTR. 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 /ACCGO/CAK_S_MNTNCONTR 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_/ACCGO/CAK_S_MNTNCONTR TYPE STANDARD TABLE OF /ACCGO/CAK_S_MNTNCONTR,
      WA_/ACCGO/CAK_S_MNTNCONTR TYPE /ACCGO/CAK_S_MNTNCONTR,
      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: </ACCGO/CAK_S_MNTNCONTR> TYPE /ACCGO/CAK_S_MNTNCONTR.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ACCGO/CAK_S_MNTNCONTR
  INTO TABLE IT_/ACCGO/CAK_S_MNTNCONTR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ACCGO/CAK_S_MNTNCONTR
*  INTO TABLE @DATA(IT_/ACCGO/CAK_S_MNTNCONTR2).
*--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_/ACCGO/CAK_S_MNTNCONTR INDEX 1 INTO DATA(WA_/ACCGO/CAK_S_MNTNCONTR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ACCGO/CAK_S_MNTNCONTR ASSIGNING </ACCGO/CAK_S_MNTNCONTR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ACCGO/CAK_S_MNTNCONTR>-CONTRACT_NUMBER = 1.
</ACCGO/CAK_S_MNTNCONTR>-TEW_TYPE = 1.
</ACCGO/CAK_S_MNTNCONTR>-COMPANY_CODE = 1.
</ACCGO/CAK_S_MNTNCONTR>-COMPANY_NAME = 1.
</ACCGO/CAK_S_MNTNCONTR>-PURC_ORG = 1.

ENDLOOP.

LOOP AT IT_/ACCGO/CAK_S_MNTNCONTR INTO WA_/ACCGO/CAK_S_MNTNCONTR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ACCGO/CAK_S_MNTNCONTR-PURC_ORG_DESC, sy-vline,
  WA_/ACCGO/CAK_S_MNTNCONTR-PURC_GROUP, sy-vline,
  WA_/ACCGO/CAK_S_MNTNCONTR-PURC_GRP_DESC, sy-vline,
  WA_/ACCGO/CAK_S_MNTNCONTR-SALES_ORG, sy-vline,
  WA_/ACCGO/CAK_S_MNTNCONTR-SALES_ORG_DESC, sy-vline,
  WA_/ACCGO/CAK_S_MNTNCONTR-DIST_CHANNEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ACCGO/CAK_S_MNTNCONTR 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_/ACCGO/CAK_S_MNTNCONTR 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_/ACCGO/CAK_S_MNTNCONTR INTO WA_/ACCGO/CAK_S_MNTNCONTR.


*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 CONTRACT_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/CAK_S_MNTNCONTR-CONTRACT_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/CAK_S_MNTNCONTR-CONTRACT_NUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field TRANS_PARTNER_FUNC
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/CAK_S_MNTNCONTR-TRANS_PARTNER_FUNC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/CAK_S_MNTNCONTR-TRANS_PARTNER_FUNC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TRADE_OFFICE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/CAK_S_MNTNCONTR-TRADE_OFFICE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/CAK_S_MNTNCONTR-TRADE_OFFICE.
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_/ACCGO/CAK_S_MNTNCONTR_STR, 
CONTRACT_NUMBER TYPE STRING,
TEW_TYPE TYPE STRING,
COMPANY_CODE TYPE STRING,
COMPANY_NAME TYPE STRING,
PURC_ORG TYPE STRING,
PURC_ORG_DESC TYPE STRING,
PURC_GROUP TYPE STRING,
PURC_GRP_DESC TYPE STRING,
SALES_ORG TYPE STRING,
SALES_ORG_DESC TYPE STRING,
DIST_CHANNEL TYPE STRING,
DIST_CHAN_DESC TYPE STRING,
DIVISION TYPE STRING,
DIVISION_DESC TYPE STRING,
CONTRACT_SIDE TYPE STRING,
CONTRACT_TYPE TYPE STRING,
CONTRACT_TYPE_DESC TYPE STRING,
COUNTER_PARTY TYPE STRING,
COUNTER_PARTY_DESC TYPE STRING,
COUNTER_PARTY_TYPE TYPE STRING,
TRANSACTING_COUNTER_PARTY TYPE STRING,
TRANS_COUNTER_PARTY_DESC TYPE STRING,
TRANS_PARTNER_FUNC TYPE STRING,
VEHICLE_CONTRACT TYPE STRING,
PAYMENT_TERM TYPE STRING,
PAYMENT_TERM_DESC TYPE STRING,
INCOTERMS TYPE STRING,
INCOTERM_DESC TYPE STRING,
INCOTERM_LOCATION1 TYPE STRING,
INCOTERM_LOCATION2 TYPE STRING,
CURRENCY TYPE STRING,
EXTERANL_REFERENCE TYPE STRING,
TRADER_ID TYPE STRING,
TRADER_ID_DESC TYPE STRING,
AMEND_TRADER_ID TYPE STRING,
AMEND_TRADER_ID_DESC TYPE STRING,
TRADE_OFFICE TYPE STRING,
TRADE_OFFICE_DESC TYPE STRING,
CUSTOMER_PO TYPE STRING,
CREDIT_SALE TYPE STRING,
SIGN_STATUS TYPE STRING,
OPERATION_INDICATOR TYPE STRING,
USERNAME TYPE STRING,
VALID_TILL_DATE TYPE STRING,
CONTRACTSTATUS TYPE STRING,
TRDGCONTRAPPLSTSNAME TYPE STRING,
SUPPLYING_PLANT TYPE STRING,
SUPPLYING_PLANT_DESC TYPE STRING,
CURRENCYDESC TYPE STRING,
ATTACHMENT_TEMP_GUID TYPE STRING,
IS_TRADE_OFC_CHANGED TYPE STRING,
TARGET_CONTRACT_TYPE TYPE STRING,
TARGET_CONTRACT_TYPE_DESC TYPE STRING,
YOUR_REF TYPE STRING,
CALL_OF_RELEVANT TYPE STRING,
UXFCTRANSACTINGCOUNTERPARTY TYPE STRING,
SIDE_DESC TYPE STRING,
CONT_CATEG_DESC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ACCGO/CAK_S_MNTNCONTR_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_/ACCGO/CAK_S_MNTNCONTR_STR-CONTRACT_NUMBER sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-TEW_TYPE sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-COMPANY_CODE sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-COMPANY_NAME sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-PURC_ORG sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-PURC_ORG_DESC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-PURC_GROUP sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-PURC_GRP_DESC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-SALES_ORG sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-SALES_ORG_DESC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-DIST_CHANNEL sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-DIST_CHAN_DESC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-DIVISION sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-DIVISION_DESC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-CONTRACT_SIDE sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-CONTRACT_TYPE sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-CONTRACT_TYPE_DESC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-COUNTER_PARTY sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-COUNTER_PARTY_DESC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-COUNTER_PARTY_TYPE sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-TRANSACTING_COUNTER_PARTY sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-TRANS_COUNTER_PARTY_DESC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-TRANS_PARTNER_FUNC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-VEHICLE_CONTRACT sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-PAYMENT_TERM sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-PAYMENT_TERM_DESC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-INCOTERMS sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-INCOTERM_DESC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-INCOTERM_LOCATION1 sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-INCOTERM_LOCATION2 sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-CURRENCY sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-EXTERANL_REFERENCE sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-TRADER_ID sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-TRADER_ID_DESC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-AMEND_TRADER_ID sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-AMEND_TRADER_ID_DESC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-TRADE_OFFICE sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-TRADE_OFFICE_DESC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-CUSTOMER_PO sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-CREDIT_SALE sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-SIGN_STATUS sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-OPERATION_INDICATOR sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-USERNAME sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-VALID_TILL_DATE sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-CONTRACTSTATUS sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-TRDGCONTRAPPLSTSNAME sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-SUPPLYING_PLANT sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-SUPPLYING_PLANT_DESC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-CURRENCYDESC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-ATTACHMENT_TEMP_GUID sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-IS_TRADE_OFC_CHANGED sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-TARGET_CONTRACT_TYPE sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-TARGET_CONTRACT_TYPE_DESC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-YOUR_REF sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-CALL_OF_RELEVANT sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-UXFCTRANSACTINGCOUNTERPARTY sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-SIDE_DESC sy-vline 
WA_/ACCGO/CAK_S_MNTNCONTR_STR-CONT_CATEG_DESC sy-vline      INTO ld_text SEPARATED BY SPACE.

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