ABAP Select data from SAP table OIUCW_RUN_PARMS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIUCW_RUN_PARMS
*  INTO TABLE @DATA(IT_OIUCW_RUN_PARMS2).
*--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_OIUCW_RUN_PARMS INDEX 1 INTO DATA(WA_OIUCW_RUN_PARMS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIUCW_RUN_PARMS>-MANDT = 1.
<OIUCW_RUN_PARMS>-RUN_ID = 1.
<OIUCW_RUN_PARMS>-RUN_DATE = 1.
<OIUCW_RUN_PARMS>-STATUS = 1.
<OIUCW_RUN_PARMS>-LEVEL_OF_CW = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIUCW_RUN_PARMS-CHECK_DATE, sy-vline,
  WA_OIUCW_RUN_PARMS-PMNT_RUN_TYPE, sy-vline,
  WA_OIUCW_RUN_PARMS-BANK_ID, sy-vline,
  WA_OIUCW_RUN_PARMS-BANK_ACCOUNT, sy-vline,
  WA_OIUCW_RUN_PARMS-COMPANY_CODE, sy-vline,
  WA_OIUCW_RUN_PARMS-CASH_COMPANY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIUCW_RUN_PARMS 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_OIUCW_RUN_PARMS 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_OIUCW_RUN_PARMS INTO WA_OIUCW_RUN_PARMS.


*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_OIUCW_RUN_PARMS_STR, 
MANDT TYPE STRING,
RUN_ID TYPE STRING,
RUN_DATE TYPE STRING,
STATUS TYPE STRING,
LEVEL_OF_CW TYPE STRING,
CHECK_DATE TYPE STRING,
PMNT_RUN_TYPE TYPE STRING,
BANK_ID TYPE STRING,
BANK_ACCOUNT TYPE STRING,
COMPANY_CODE TYPE STRING,
CASH_COMPANY TYPE STRING,
OVERRIDE_MIN_PAY TYPE STRING,
TARGET_SERVER TYPE STRING,
JOB_ID TYPE STRING,
USER_NAME TYPE STRING,
OWNERS_IN_GROUP TYPE STRING,
RUN_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIUCW_RUN_PARMS_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_OIUCW_RUN_PARMS_STR-MANDT sy-vline 
WA_OIUCW_RUN_PARMS_STR-RUN_ID sy-vline 
WA_OIUCW_RUN_PARMS_STR-RUN_DATE sy-vline 
WA_OIUCW_RUN_PARMS_STR-STATUS sy-vline 
WA_OIUCW_RUN_PARMS_STR-LEVEL_OF_CW sy-vline 
WA_OIUCW_RUN_PARMS_STR-CHECK_DATE sy-vline 
WA_OIUCW_RUN_PARMS_STR-PMNT_RUN_TYPE sy-vline 
WA_OIUCW_RUN_PARMS_STR-BANK_ID sy-vline 
WA_OIUCW_RUN_PARMS_STR-BANK_ACCOUNT sy-vline 
WA_OIUCW_RUN_PARMS_STR-COMPANY_CODE sy-vline 
WA_OIUCW_RUN_PARMS_STR-CASH_COMPANY sy-vline 
WA_OIUCW_RUN_PARMS_STR-OVERRIDE_MIN_PAY sy-vline 
WA_OIUCW_RUN_PARMS_STR-TARGET_SERVER sy-vline 
WA_OIUCW_RUN_PARMS_STR-JOB_ID sy-vline 
WA_OIUCW_RUN_PARMS_STR-USER_NAME sy-vline 
WA_OIUCW_RUN_PARMS_STR-OWNERS_IN_GROUP sy-vline 
WA_OIUCW_RUN_PARMS_STR-RUN_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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