ABAP Select data from SAP table /PM0/AOOL_LOAN_CONTRACT_IN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PM0/AOOL_LOAN_CONTRACT_IN 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 /PM0/AOOL_LOAN_CONTRACT_IN. 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 /PM0/AOOL_LOAN_CONTRACT_IN 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_/PM0/AOOL_LOAN_CONTRACT_IN TYPE STANDARD TABLE OF /PM0/AOOL_LOAN_CONTRACT_IN,
      WA_/PM0/AOOL_LOAN_CONTRACT_IN TYPE /PM0/AOOL_LOAN_CONTRACT_IN,
      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: </PM0/AOOL_LOAN_CONTRACT_IN> TYPE /PM0/AOOL_LOAN_CONTRACT_IN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/PM0/AOOL_LOAN_CONTRACT_IN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PM0/AOOL_LOAN_CONTRACT_IN
  INTO TABLE IT_/PM0/AOOL_LOAN_CONTRACT_IN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PM0/AOOL_LOAN_CONTRACT_IN
*  INTO TABLE @DATA(IT_/PM0/AOOL_LOAN_CONTRACT_IN2).
*--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_/PM0/AOOL_LOAN_CONTRACT_IN INDEX 1 INTO DATA(WA_/PM0/AOOL_LOAN_CONTRACT_IN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PM0/AOOL_LOAN_CONTRACT_IN ASSIGNING </PM0/AOOL_LOAN_CONTRACT_IN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PM0/AOOL_LOAN_CONTRACT_IN>-MANDT = 1.
</PM0/AOOL_LOAN_CONTRACT_IN>-COMPANY_CODE = 1.
</PM0/AOOL_LOAN_CONTRACT_IN>-INSR_CONTRACT_ID = 1.
</PM0/AOOL_LOAN_CONTRACT_IN>-LOANS_CONTRACT = 1.
</PM0/AOOL_LOAN_CONTRACT_IN>-CONTRACT_CURRENCY = 1.

ENDLOOP.

LOOP AT IT_/PM0/AOOL_LOAN_CONTRACT_IN INTO WA_/PM0/AOOL_LOAN_CONTRACT_IN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PM0/AOOL_LOAN_CONTRACT_IN-COMMITMENT_CAP, sy-vline,
  WA_/PM0/AOOL_LOAN_CONTRACT_IN-VALUE_DATED_CAP, sy-vline,
  WA_/PM0/AOOL_LOAN_CONTRACT_IN-DISB_OBL, sy-vline,
  WA_/PM0/AOOL_LOAN_CONTRACT_IN-REMAINING_CAP, sy-vline,
  WA_/PM0/AOOL_LOAN_CONTRACT_IN-DATE_START_OF_TERM, sy-vline,
  WA_/PM0/AOOL_LOAN_CONTRACT_IN-DATE_END_OF_TERM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PM0/AOOL_LOAN_CONTRACT_IN 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_/PM0/AOOL_LOAN_CONTRACT_IN 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_/PM0/AOOL_LOAN_CONTRACT_IN INTO WA_/PM0/AOOL_LOAN_CONTRACT_IN.


*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 INSR_CONTRACT_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PM0/AOOL_LOAN_CONTRACT_IN-INSR_CONTRACT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PM0/AOOL_LOAN_CONTRACT_IN-INSR_CONTRACT_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INSR_OBJ_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PM0/AOOL_LOAN_CONTRACT_IN-INSR_OBJ_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PM0/AOOL_LOAN_CONTRACT_IN-INSR_OBJ_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MAIN_PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PM0/AOOL_LOAN_CONTRACT_IN-MAIN_PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PM0/AOOL_LOAN_CONTRACT_IN-MAIN_PARTNER.
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_/PM0/AOOL_LOAN_CONTRACT_IN_STR, 
MANDT TYPE STRING,
COMPANY_CODE TYPE STRING,
INSR_CONTRACT_ID TYPE STRING,
LOANS_CONTRACT TYPE STRING,
CONTRACT_CURRENCY TYPE STRING,
COMMITMENT_CAP TYPE STRING,
VALUE_DATED_CAP TYPE STRING,
DISB_OBL TYPE STRING,
REMAINING_CAP TYPE STRING,
DATE_START_OF_TERM TYPE STRING,
DATE_END_OF_TERM TYPE STRING,
DATE_END_OF_PERIOD TYPE STRING,
LC_DISBURSEMENT TYPE STRING,
LC_CAPITALS TYPE STRING,
LC_PLANNED_FLOW TYPE STRING,
LC_STATUS TYPE STRING,
CALCULATION_ERROR TYPE STRING,
INSR_OBJ_ID TYPE STRING,
NEXT_INT_PAYDATE TYPE STRING,
LATEST_INT_PAYDATE TYPE STRING,
EFF_INT TYPE STRING,
NOM_INT TYPE STRING,
PROD_TYPE TYPE STRING,
PROD_TYPE_LTX TYPE STRING,
FLG_DATA_IN_RELEASE TYPE STRING,
FLG_STATUS_IS_CONTRACT TYPE STRING,
LC_DISBURSEMENT_T TYPE STRING,
LC_CAPITALS_T TYPE STRING,
LC_PLANNED_FLOW_T TYPE STRING,
LC_STATUS_T TYPE STRING,
MAIN_PARTNER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PM0/AOOL_LOAN_CONTRACT_IN_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_/PM0/AOOL_LOAN_CONTRACT_IN_STR-MANDT sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-COMPANY_CODE sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-INSR_CONTRACT_ID sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-LOANS_CONTRACT sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-CONTRACT_CURRENCY sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-COMMITMENT_CAP sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-VALUE_DATED_CAP sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-DISB_OBL sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-REMAINING_CAP sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-DATE_START_OF_TERM sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-DATE_END_OF_TERM sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-DATE_END_OF_PERIOD sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-LC_DISBURSEMENT sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-LC_CAPITALS sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-LC_PLANNED_FLOW sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-LC_STATUS sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-CALCULATION_ERROR sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-INSR_OBJ_ID sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-NEXT_INT_PAYDATE sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-LATEST_INT_PAYDATE sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-EFF_INT sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-NOM_INT sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-PROD_TYPE sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-PROD_TYPE_LTX sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-FLG_DATA_IN_RELEASE sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-FLG_STATUS_IS_CONTRACT sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-LC_DISBURSEMENT_T sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-LC_CAPITALS_T sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-LC_PLANNED_FLOW_T sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-LC_STATUS_T sy-vline 
WA_/PM0/AOOL_LOAN_CONTRACT_IN_STR-MAIN_PARTNER sy-vline      INTO ld_text SEPARATED BY SPACE.

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