ABAP Select data from SAP table DB6_VIEW_REC_WIZARD_STEP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DB6_VIEW_REC_WIZARD_STEP 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 DB6_VIEW_REC_WIZARD_STEP. 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 DB6_VIEW_REC_WIZARD_STEP 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_DB6_VIEW_REC_WIZARD_STEP TYPE STANDARD TABLE OF DB6_VIEW_REC_WIZARD_STEP,
      WA_DB6_VIEW_REC_WIZARD_STEP TYPE DB6_VIEW_REC_WIZARD_STEP,
      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: <DB6_VIEW_REC_WIZARD_STEP> TYPE DB6_VIEW_REC_WIZARD_STEP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DB6_VIEW_REC_WIZARD_STEP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DB6_VIEW_REC_WIZARD_STEP
  INTO TABLE IT_DB6_VIEW_REC_WIZARD_STEP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DB6_VIEW_REC_WIZARD_STEP
*  INTO TABLE @DATA(IT_DB6_VIEW_REC_WIZARD_STEP2).
*--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_DB6_VIEW_REC_WIZARD_STEP INDEX 1 INTO DATA(WA_DB6_VIEW_REC_WIZARD_STEP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DB6_VIEW_REC_WIZARD_STEP ASSIGNING <DB6_VIEW_REC_WIZARD_STEP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DB6_VIEW_REC_WIZARD_STEP>-PREREQUISITES = 1.
<DB6_VIEW_REC_WIZARD_STEP>-BACKUP_DATE = 1.
<DB6_VIEW_REC_WIZARD_STEP>-BACKUP_TIME = 1.
<DB6_VIEW_REC_WIZARD_STEP>-GENERAL = 1.
<DB6_VIEW_REC_WIZARD_STEP>-INFOPROVIDER = 1.

ENDLOOP.

LOOP AT IT_DB6_VIEW_REC_WIZARD_STEP INTO WA_DB6_VIEW_REC_WIZARD_STEP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DB6_VIEW_REC_WIZARD_STEP-TARGET_DATA_CLASS, sy-vline,
  WA_DB6_VIEW_REC_WIZARD_STEP-TARGET_AGGR_DATA_CLASS, sy-vline,
  WA_DB6_VIEW_REC_WIZARD_STEP-USE_ROW_COMPRESSION, sy-vline,
  WA_DB6_VIEW_REC_WIZARD_STEP-COMPRESSION_DICT_SIZE, sy-vline,
  WA_DB6_VIEW_REC_WIZARD_STEP-RECOMPRESS, sy-vline,
  WA_DB6_VIEW_REC_WIZARD_STEP-COMMIT_SIZE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DB6_VIEW_REC_WIZARD_STEP 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_DB6_VIEW_REC_WIZARD_STEP 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_DB6_VIEW_REC_WIZARD_STEP INTO WA_DB6_VIEW_REC_WIZARD_STEP.


*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_DB6_VIEW_REC_WIZARD_STEP_STR, 
PREREQUISITES TYPE STRING,
BACKUP_DATE TYPE STRING,
BACKUP_TIME TYPE STRING,
GENERAL TYPE STRING,
INFOPROVIDER TYPE STRING,
TARGET_DATA_CLASS TYPE STRING,
TARGET_AGGR_DATA_CLASS TYPE STRING,
USE_ROW_COMPRESSION TYPE STRING,
COMPRESSION_DICT_SIZE TYPE STRING,
RECOMPRESS TYPE STRING,
COMMIT_SIZE TYPE STRING,
ROW_COMPRESSION_INFO TYPE STRING,
ENABLE_COMPRESSION TYPE STRING,
ENABLE_DICTIONARY TYPE STRING,
ENABLE_RECOMPRESS TYPE STRING,
SELECT_CLUSTERING TYPE STRING,
IP_CLUSTERTYPE TYPE STRING,
MDC_DIALOG_INFOCUBE TYPE STRING,
PACKAGE_DIMENSION TYPE STRING,
TIME_CHARACTERISTIC TYPE STRING,
TIME_STATUS_NUMBER TYPE STRING,
MDC_DIMENSIONS TYPE STRING,
SPACE_CHECK TYPE STRING,
MDC_DIALOG_DATASTORE TYPE STRING,
MDC_DIMENSIONS TYPE STRING,
SPACE_CHECK TYPE STRING,
SCHEDULE_JOB TYPE STRING,
SLCT_TIME TYPE STRING,
DATE TYPE STRING,
TIME TYPE STRING,
ENABLE_DATE TYPE STRING,
ENABLE_TIME TYPE STRING,
START_MONITOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DB6_VIEW_REC_WIZARD_STEP_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_DB6_VIEW_REC_WIZARD_STEP_STR-PREREQUISITES sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-BACKUP_DATE sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-BACKUP_TIME sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-GENERAL sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-INFOPROVIDER sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-TARGET_DATA_CLASS sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-TARGET_AGGR_DATA_CLASS sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-USE_ROW_COMPRESSION sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-COMPRESSION_DICT_SIZE sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-RECOMPRESS sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-COMMIT_SIZE sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-ROW_COMPRESSION_INFO sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-ENABLE_COMPRESSION sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-ENABLE_DICTIONARY sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-ENABLE_RECOMPRESS sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-SELECT_CLUSTERING sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-IP_CLUSTERTYPE sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-MDC_DIALOG_INFOCUBE sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-PACKAGE_DIMENSION sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-TIME_CHARACTERISTIC sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-TIME_STATUS_NUMBER sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-MDC_DIMENSIONS sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-SPACE_CHECK sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-MDC_DIALOG_DATASTORE sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-MDC_DIMENSIONS sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-SPACE_CHECK sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-SCHEDULE_JOB sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-SLCT_TIME sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-DATE sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-TIME sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-ENABLE_DATE sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-ENABLE_TIME sy-vline 
WA_DB6_VIEW_REC_WIZARD_STEP_STR-START_MONITOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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