ABAP Select data from SAP table DB2_VIEW_COL_PROFILE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DB2_VIEW_COL_PROFILE 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 DB2_VIEW_COL_PROFILE. 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 DB2_VIEW_COL_PROFILE 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_DB2_VIEW_COL_PROFILE TYPE STANDARD TABLE OF DB2_VIEW_COL_PROFILE,
      WA_DB2_VIEW_COL_PROFILE TYPE DB2_VIEW_COL_PROFILE,
      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: <DB2_VIEW_COL_PROFILE> TYPE DB2_VIEW_COL_PROFILE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DB2_VIEW_COL_PROFILE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DB2_VIEW_COL_PROFILE
  INTO TABLE IT_DB2_VIEW_COL_PROFILE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DB2_VIEW_COL_PROFILE
*  INTO TABLE @DATA(IT_DB2_VIEW_COL_PROFILE2).
*--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_DB2_VIEW_COL_PROFILE INDEX 1 INTO DATA(WA_DB2_VIEW_COL_PROFILE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DB2_VIEW_COL_PROFILE ASSIGNING <DB2_VIEW_COL_PROFILE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DB2_VIEW_COL_PROFILE>-COL_PROFILE = 1.
<DB2_VIEW_COL_PROFILE>-DSC_HIST_EVAL = 1.
<DB2_VIEW_COL_PROFILE>-DSC_HIST_STMT_NO = 1.
<DB2_VIEW_COL_PROFILE>-DSC_OFFSET_STATSTIME = 1.
<DB2_VIEW_COL_PROFILE>-DSCHIST_CLEAN_INTERVAL = 1.

ENDLOOP.

LOOP AT IT_DB2_VIEW_COL_PROFILE INTO WA_DB2_VIEW_COL_PROFILE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DB2_VIEW_COL_PROFILE-ACC_TIME_EVAL, sy-vline,
  WA_DB2_VIEW_COL_PROFILE-GLOTIME_CLEAN_INTERVAL, sy-vline,
  WA_DB2_VIEW_COL_PROFILE-DB02_KEEP_DAYS, sy-vline,
  WA_DB2_VIEW_COL_PROFILE-DB02_KEEP_WEEKS, sy-vline,
  WA_DB2_VIEW_COL_PROFILE-DB02_KEEP_MONTHS, sy-vline,
  WA_DB2_VIEW_COL_PROFILE-DB02_COLLECT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DB2_VIEW_COL_PROFILE 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_DB2_VIEW_COL_PROFILE 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_DB2_VIEW_COL_PROFILE INTO WA_DB2_VIEW_COL_PROFILE.


*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_DB2_VIEW_COL_PROFILE_STR, 
COL_PROFILE TYPE STRING,
DSC_HIST_EVAL TYPE STRING,
DSC_HIST_STMT_NO TYPE STRING,
DSC_OFFSET_STATSTIME TYPE STRING,
DSCHIST_CLEAN_INTERVAL TYPE STRING,
ACC_TIME_EVAL TYPE STRING,
GLOTIME_CLEAN_INTERVAL TYPE STRING,
DB02_KEEP_DAYS TYPE STRING,
DB02_KEEP_WEEKS TYPE STRING,
DB02_KEEP_MONTHS TYPE STRING,
DB02_COLLECT TYPE STRING,
DB02_OFFSET TYPE STRING,
ALERTS_CLEAN_INTERVAL TYPE STRING,
DBM1_TIME_EVAL TYPE STRING,
STRG_CLEAN_INTERVAL TYPE STRING,
DB02_THRESHOLD_YELLOW TYPE STRING,
DB02_THRESHOLD_RED TYPE STRING,
STOP_AT_DB2_SHUTDOWN TYPE STRING,
ACL_TIME_EVAL TYPE STRING,
ACCEL_CLEAN_INTERVAL TYPE STRING,
SAP_THREAD_TIME_EVAL TYPE STRING,
SAP_THREAD_THRESHOLD TYPE STRING,
START_DB_TRACE TYPE STRING,
START_ACC_TRACE TYPE STRING,
START_DSC_TRACE TYPE STRING,
START_400_TRACE TYPE STRING,
START_501_TRACE TYPE STRING,
CB_DB02_COL_ON_OFF TYPE STRING,
RB_ALR_DISCON_AT_DB2STOP TYPE STRING,
RB_ALR_STOP_AT_DB2STOP TYPE STRING,
DSC_INTERVAL_UNIT TYPE STRING,
ACC_INTERVAL_UNIT TYPE STRING,
DBM1_INTERVAL_UNIT TYPE STRING,
CB_DB02_START_DB_TRACES TYPE STRING,
CB_DB02_START_ACC_TRACE TYPE STRING,
CB_DB02_START_DSC_TRACE TYPE STRING,
CB_DB02_START_400_TRACE TYPE STRING,
CB_DB02_START_501_TRACE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DB2_VIEW_COL_PROFILE_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_DB2_VIEW_COL_PROFILE_STR-COL_PROFILE sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-DSC_HIST_EVAL sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-DSC_HIST_STMT_NO sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-DSC_OFFSET_STATSTIME sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-DSCHIST_CLEAN_INTERVAL sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-ACC_TIME_EVAL sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-GLOTIME_CLEAN_INTERVAL sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-DB02_KEEP_DAYS sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-DB02_KEEP_WEEKS sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-DB02_KEEP_MONTHS sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-DB02_COLLECT sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-DB02_OFFSET sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-ALERTS_CLEAN_INTERVAL sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-DBM1_TIME_EVAL sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-STRG_CLEAN_INTERVAL sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-DB02_THRESHOLD_YELLOW sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-DB02_THRESHOLD_RED sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-STOP_AT_DB2_SHUTDOWN sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-ACL_TIME_EVAL sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-ACCEL_CLEAN_INTERVAL sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-SAP_THREAD_TIME_EVAL sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-SAP_THREAD_THRESHOLD sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-START_DB_TRACE sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-START_ACC_TRACE sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-START_DSC_TRACE sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-START_400_TRACE sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-START_501_TRACE sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-CB_DB02_COL_ON_OFF sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-RB_ALR_DISCON_AT_DB2STOP sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-RB_ALR_STOP_AT_DB2STOP sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-DSC_INTERVAL_UNIT sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-ACC_INTERVAL_UNIT sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-DBM1_INTERVAL_UNIT sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-CB_DB02_START_DB_TRACES sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-CB_DB02_START_ACC_TRACE sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-CB_DB02_START_DSC_TRACE sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-CB_DB02_START_400_TRACE sy-vline 
WA_DB2_VIEW_COL_PROFILE_STR-CB_DB02_START_501_TRACE sy-vline      INTO ld_text SEPARATED BY SPACE.

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