ABAP Select data from SAP table DB2CCDAILY into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DB2CCDAILY 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 DB2CCDAILY. 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 DB2CCDAILY 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_DB2CCDAILY TYPE STANDARD TABLE OF DB2CCDAILY,
      WA_DB2CCDAILY TYPE DB2CCDAILY,
      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: <DB2CCDAILY> TYPE DB2CCDAILY.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DB2CCDAILY.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DB2CCDAILY
  INTO TABLE IT_DB2CCDAILY.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DB2CCDAILY
*  INTO TABLE @DATA(IT_DB2CCDAILY2).
*--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_DB2CCDAILY INDEX 1 INTO DATA(WA_DB2CCDAILY2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DB2CCDAILY ASSIGNING <DB2CCDAILY>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DB2CCDAILY>-DATE_ANA = 1.
<DB2CCDAILY>-TIME_ANA = 1.
<DB2CCDAILY>-DBNAM = 1.
<DB2CCDAILY>-TSNAM = 1.
<DB2CCDAILY>-TSPART = 1.

ENDLOOP.

LOOP AT IT_DB2CCDAILY INTO WA_DB2CCDAILY.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DB2CCDAILY-CREATOR, sy-vline,
  WA_DB2CCDAILY-IXNAME, sy-vline,
  WA_DB2CCDAILY-DBNAME, sy-vline,
  WA_DB2CCDAILY-TSNAME, sy-vline,
  WA_DB2CCDAILY-PARTI, sy-vline,
  WA_DB2CCDAILY-OBJTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DB2CCDAILY 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_DB2CCDAILY 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_DB2CCDAILY INTO WA_DB2CCDAILY.


*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_DB2CCDAILY_STR, 
DATE_ANA TYPE STRING,
TIME_ANA TYPE STRING,
DBNAM TYPE STRING,
TSNAM TYPE STRING,
TSPART TYPE STRING,
CREATOR TYPE STRING,
IXNAME TYPE STRING,
DBNAME TYPE STRING,
TSNAME TYPE STRING,
PARTI TYPE STRING,
OBJTYPE TYPE STRING,
OBJSTATUS TYPE STRING,
COPYREC TYPE STRING,
RUNSTREC TYPE STRING,
EXTENTS TYPE STRING,
REORGREC TYPE STRING,
EXCTABLE TYPE STRING,
ASSOCTS TYPE STRING,
COPYTIME TYPE STRING,
LOADREPLTI TYPE STRING,
REBUILDTIM TYPE STRING,
FCUPDPGS TYPE STRING,
FCCHGPCT TYPE STRING,
FCDAYSCOPY TYPE STRING,
FCINDEXSIZ TYPE STRING,
REORGTIME TYPE STRING,
RTINSDELUP TYPE STRING,
RTUNCLUST TYPE STRING,
RTLOBPCT TYPE STRING,
RTMASSDEL TYPE STRING,
RTINDREF TYPE STRING,
RIINSDEL TYPE STRING,
RIAPPINS TYPE STRING,
RIPSEUDODE TYPE STRING,
RIMASSDEL TYPE STRING,
RILEAFLIM TYPE STRING,
RINUMLEVEL TYPE STRING,
RUNSTATSTI TYPE STRING,
STINSDELP TYPE STRING,
STINSDELA TYPE STRING,
STMASSDEL TYPE STRING,
SIINSDELP TYPE STRING,
SIINSDELA TYPE STRING,
SIMASSDEL TYPE STRING,
EXTENT_NO TYPE STRING,
RTINSDELUPABS TYPE STRING,
RTACTIVEPAGES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DB2CCDAILY_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_DB2CCDAILY_STR-DATE_ANA sy-vline 
WA_DB2CCDAILY_STR-TIME_ANA sy-vline 
WA_DB2CCDAILY_STR-DBNAM sy-vline 
WA_DB2CCDAILY_STR-TSNAM sy-vline 
WA_DB2CCDAILY_STR-TSPART sy-vline 
WA_DB2CCDAILY_STR-CREATOR sy-vline 
WA_DB2CCDAILY_STR-IXNAME sy-vline 
WA_DB2CCDAILY_STR-DBNAME sy-vline 
WA_DB2CCDAILY_STR-TSNAME sy-vline 
WA_DB2CCDAILY_STR-PARTI sy-vline 
WA_DB2CCDAILY_STR-OBJTYPE sy-vline 
WA_DB2CCDAILY_STR-OBJSTATUS sy-vline 
WA_DB2CCDAILY_STR-COPYREC sy-vline 
WA_DB2CCDAILY_STR-RUNSTREC sy-vline 
WA_DB2CCDAILY_STR-EXTENTS sy-vline 
WA_DB2CCDAILY_STR-REORGREC sy-vline 
WA_DB2CCDAILY_STR-EXCTABLE sy-vline 
WA_DB2CCDAILY_STR-ASSOCTS sy-vline 
WA_DB2CCDAILY_STR-COPYTIME sy-vline 
WA_DB2CCDAILY_STR-LOADREPLTI sy-vline 
WA_DB2CCDAILY_STR-REBUILDTIM sy-vline 
WA_DB2CCDAILY_STR-FCUPDPGS sy-vline 
WA_DB2CCDAILY_STR-FCCHGPCT sy-vline 
WA_DB2CCDAILY_STR-FCDAYSCOPY sy-vline 
WA_DB2CCDAILY_STR-FCINDEXSIZ sy-vline 
WA_DB2CCDAILY_STR-REORGTIME sy-vline 
WA_DB2CCDAILY_STR-RTINSDELUP sy-vline 
WA_DB2CCDAILY_STR-RTUNCLUST sy-vline 
WA_DB2CCDAILY_STR-RTLOBPCT sy-vline 
WA_DB2CCDAILY_STR-RTMASSDEL sy-vline 
WA_DB2CCDAILY_STR-RTINDREF sy-vline 
WA_DB2CCDAILY_STR-RIINSDEL sy-vline 
WA_DB2CCDAILY_STR-RIAPPINS sy-vline 
WA_DB2CCDAILY_STR-RIPSEUDODE sy-vline 
WA_DB2CCDAILY_STR-RIMASSDEL sy-vline 
WA_DB2CCDAILY_STR-RILEAFLIM sy-vline 
WA_DB2CCDAILY_STR-RINUMLEVEL sy-vline 
WA_DB2CCDAILY_STR-RUNSTATSTI sy-vline 
WA_DB2CCDAILY_STR-STINSDELP sy-vline 
WA_DB2CCDAILY_STR-STINSDELA sy-vline 
WA_DB2CCDAILY_STR-STMASSDEL sy-vline 
WA_DB2CCDAILY_STR-SIINSDELP sy-vline 
WA_DB2CCDAILY_STR-SIINSDELA sy-vline 
WA_DB2CCDAILY_STR-SIMASSDEL sy-vline 
WA_DB2CCDAILY_STR-EXTENT_NO sy-vline 
WA_DB2CCDAILY_STR-RTINSDELUPABS sy-vline 
WA_DB2CCDAILY_STR-RTACTIVEPAGES sy-vline      INTO ld_text SEPARATED BY SPACE.

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