ABAP Select data from SAP table CNVRUNTIMEHELP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNVRUNTIMEHELP
*  INTO TABLE @DATA(IT_CNVRUNTIMEHELP2).
*--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_CNVRUNTIMEHELP INDEX 1 INTO DATA(WA_CNVRUNTIMEHELP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNVRUNTIMEHELP>-MANDT = 1.
<CNVRUNTIMEHELP>-PACKID = 1.
<CNVRUNTIMEHELP>-PHASE = 1.
<CNVRUNTIMEHELP>-TABNAME = 1.
<CNVRUNTIMEHELP>-PROGNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNVRUNTIMEHELP-TASKID, sy-vline,
  WA_CNVRUNTIMEHELP-STATE_TEC, sy-vline,
  WA_CNVRUNTIMEHELP-LFDNR, sy-vline,
  WA_CNVRUNTIMEHELP-TEMPORAER, sy-vline,
  WA_CNVRUNTIMEHELP-STARTTIME, sy-vline,
  WA_CNVRUNTIMEHELP-ENDTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNVRUNTIMEHELP 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_CNVRUNTIMEHELP 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_CNVRUNTIMEHELP INTO WA_CNVRUNTIMEHELP.


*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_CNVRUNTIMEHELP_STR, 
MANDT TYPE STRING,
PACKID TYPE STRING,
PHASE TYPE STRING,
TABNAME TYPE STRING,
PROGNAME TYPE STRING,
TASKID TYPE STRING,
STATE_TEC TYPE STRING,
LFDNR TYPE STRING,
TEMPORAER TYPE STRING,
STARTTIME TYPE STRING,
ENDTIME TYPE STRING,
RECREAD TYPE STRING,
RECUPD TYPE STRING,
RECDUMWRITE TYPE STRING,
RECDUMREAD TYPE STRING,
RECCOUNT1 TYPE STRING,
RECCOUNT2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNVRUNTIMEHELP_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_CNVRUNTIMEHELP_STR-MANDT sy-vline 
WA_CNVRUNTIMEHELP_STR-PACKID sy-vline 
WA_CNVRUNTIMEHELP_STR-PHASE sy-vline 
WA_CNVRUNTIMEHELP_STR-TABNAME sy-vline 
WA_CNVRUNTIMEHELP_STR-PROGNAME sy-vline 
WA_CNVRUNTIMEHELP_STR-TASKID sy-vline 
WA_CNVRUNTIMEHELP_STR-STATE_TEC sy-vline 
WA_CNVRUNTIMEHELP_STR-LFDNR sy-vline 
WA_CNVRUNTIMEHELP_STR-TEMPORAER sy-vline 
WA_CNVRUNTIMEHELP_STR-STARTTIME sy-vline 
WA_CNVRUNTIMEHELP_STR-ENDTIME sy-vline 
WA_CNVRUNTIMEHELP_STR-RECREAD sy-vline 
WA_CNVRUNTIMEHELP_STR-RECUPD sy-vline 
WA_CNVRUNTIMEHELP_STR-RECDUMWRITE sy-vline 
WA_CNVRUNTIMEHELP_STR-RECDUMREAD sy-vline 
WA_CNVRUNTIMEHELP_STR-RECCOUNT1 sy-vline 
WA_CNVRUNTIMEHELP_STR-RECCOUNT2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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