ABAP Select data from SAP table REPAY_ACTIVITY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REPAY_ACTIVITY
*  INTO TABLE @DATA(IT_REPAY_ACTIVITY2).
*--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_REPAY_ACTIVITY INDEX 1 INTO DATA(WA_REPAY_ACTIVITY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REPAY_ACTIVITY>-REP_AMOUNT = 1.
<REPAY_ACTIVITY>-REP_TRANSACTION_SIMPLE = 1.
<REPAY_ACTIVITY>-REP_TRANSACTION_COMPLEX = 1.
<REPAY_ACTIVITY>-REP_CONDITION_INS = 1.
<REPAY_ACTIVITY>-REP_CONDITION_DEL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REPAY_ACTIVITY-RED_AMOUNT, sy-vline,
  WA_REPAY_ACTIVITY-RED_CONDITION, sy-vline,
  WA_REPAY_ACTIVITY-FELD1_TRANSACTION, sy-vline,
  WA_REPAY_ACTIVITY-FELD2_TRANSACTION, sy-vline,
  WA_REPAY_ACTIVITY-PAYMENT_TRANSACTION, sy-vline,
  WA_REPAY_ACTIVITY-PARTNER_CHANGED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REPAY_ACTIVITY 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_REPAY_ACTIVITY 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_REPAY_ACTIVITY INTO WA_REPAY_ACTIVITY.


*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_REPAY_ACTIVITY_STR, 
REP_AMOUNT TYPE STRING,
REP_TRANSACTION_SIMPLE TYPE STRING,
REP_TRANSACTION_COMPLEX TYPE STRING,
REP_CONDITION_INS TYPE STRING,
REP_CONDITION_DEL TYPE STRING,
RED_AMOUNT TYPE STRING,
RED_CONDITION TYPE STRING,
FELD1_TRANSACTION TYPE STRING,
FELD2_TRANSACTION TYPE STRING,
PAYMENT_TRANSACTION TYPE STRING,
PARTNER_CHANGED TYPE STRING,
GENERAL_TRANSACTION TYPE STRING,
CASHFLOW TYPE STRING,
DATE_CHANGED TYPE STRING,
ADD_TRANS_GENERAL TYPE STRING,
DFAELLNODDISPO TYPE STRING,
OPEN_ITEMS TYPE STRING,
PAYMENT_CONDITION_DATA TYPE STRING,
NOREGSETTLEMENT TYPE STRING,
COM_STATUS TYPE STRING,
MREQUESTOR TYPE STRING,
MREMITCODE TYPE STRING,
MSTOPCODE TYPE STRING,
RREPAY_REASON TYPE STRING,
SKUEND TYPE STRING,
RREJECT_REASON TYPE STRING,
MCHRP TYPE STRING,
ENFORCM_PAYM TYPE STRING,
CLR_CATEGORY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REPAY_ACTIVITY_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_REPAY_ACTIVITY_STR-REP_AMOUNT sy-vline 
WA_REPAY_ACTIVITY_STR-REP_TRANSACTION_SIMPLE sy-vline 
WA_REPAY_ACTIVITY_STR-REP_TRANSACTION_COMPLEX sy-vline 
WA_REPAY_ACTIVITY_STR-REP_CONDITION_INS sy-vline 
WA_REPAY_ACTIVITY_STR-REP_CONDITION_DEL sy-vline 
WA_REPAY_ACTIVITY_STR-RED_AMOUNT sy-vline 
WA_REPAY_ACTIVITY_STR-RED_CONDITION sy-vline 
WA_REPAY_ACTIVITY_STR-FELD1_TRANSACTION sy-vline 
WA_REPAY_ACTIVITY_STR-FELD2_TRANSACTION sy-vline 
WA_REPAY_ACTIVITY_STR-PAYMENT_TRANSACTION sy-vline 
WA_REPAY_ACTIVITY_STR-PARTNER_CHANGED sy-vline 
WA_REPAY_ACTIVITY_STR-GENERAL_TRANSACTION sy-vline 
WA_REPAY_ACTIVITY_STR-CASHFLOW sy-vline 
WA_REPAY_ACTIVITY_STR-DATE_CHANGED sy-vline 
WA_REPAY_ACTIVITY_STR-ADD_TRANS_GENERAL sy-vline 
WA_REPAY_ACTIVITY_STR-DFAELLNODDISPO sy-vline 
WA_REPAY_ACTIVITY_STR-OPEN_ITEMS sy-vline 
WA_REPAY_ACTIVITY_STR-PAYMENT_CONDITION_DATA sy-vline 
WA_REPAY_ACTIVITY_STR-NOREGSETTLEMENT sy-vline 
WA_REPAY_ACTIVITY_STR-COM_STATUS sy-vline 
WA_REPAY_ACTIVITY_STR-MREQUESTOR sy-vline 
WA_REPAY_ACTIVITY_STR-MREMITCODE sy-vline 
WA_REPAY_ACTIVITY_STR-MSTOPCODE sy-vline 
WA_REPAY_ACTIVITY_STR-RREPAY_REASON sy-vline 
WA_REPAY_ACTIVITY_STR-SKUEND sy-vline 
WA_REPAY_ACTIVITY_STR-RREJECT_REASON sy-vline 
WA_REPAY_ACTIVITY_STR-MCHRP sy-vline 
WA_REPAY_ACTIVITY_STR-ENFORCM_PAYM sy-vline 
WA_REPAY_ACTIVITY_STR-CLR_CATEGORY sy-vline      INTO ld_text SEPARATED BY SPACE.

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