ABAP Select data from SAP table CCMSBI_WAST_TEST_DB_SEG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCMSBI_WAST_TEST_DB_SEG
*  INTO TABLE @DATA(IT_CCMSBI_WAST_TEST_DB_SEG2).
*--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_CCMSBI_WAST_TEST_DB_SEG INDEX 1 INTO DATA(WA_CCMSBI_WAST_TEST_DB_SEG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCMSBI_WAST_TEST_DB_SEG>-BW_STATR_OBJID = 1.
<CCMSBI_WAST_TEST_DB_SEG>-CONNECTION_NAME = 1.
<CCMSBI_WAST_TEST_DB_SEG>-READDIRCNT = 1.
<CCMSBI_WAST_TEST_DB_SEG>-READDIRTI = 1.
<CCMSBI_WAST_TEST_DB_SEG>-READDIRREC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCMSBI_WAST_TEST_DB_SEG-READDIRBUF, sy-vline,
  WA_CCMSBI_WAST_TEST_DB_SEG-READSEQCNT, sy-vline,
  WA_CCMSBI_WAST_TEST_DB_SEG-READSEQTI, sy-vline,
  WA_CCMSBI_WAST_TEST_DB_SEG-READSEQREC, sy-vline,
  WA_CCMSBI_WAST_TEST_DB_SEG-READSEQBUF, sy-vline,
  WA_CCMSBI_WAST_TEST_DB_SEG-PHYREADCNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCMSBI_WAST_TEST_DB_SEG 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_CCMSBI_WAST_TEST_DB_SEG 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_CCMSBI_WAST_TEST_DB_SEG INTO WA_CCMSBI_WAST_TEST_DB_SEG.


*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_CCMSBI_WAST_TEST_DB_SEG_STR, 
BW_STATR_OBJID TYPE STRING,
CONNECTION_NAME TYPE STRING,
READDIRCNT TYPE STRING,
READDIRTI TYPE STRING,
READDIRREC TYPE STRING,
READDIRBUF TYPE STRING,
READSEQCNT TYPE STRING,
READSEQTI TYPE STRING,
READSEQREC TYPE STRING,
READSEQBUF TYPE STRING,
PHYREADCNT TYPE STRING,
INSCNT TYPE STRING,
INSTI TYPE STRING,
INSREC TYPE STRING,
PHYINSCNT TYPE STRING,
UPDCNT TYPE STRING,
UPDTI TYPE STRING,
UPDREC TYPE STRING,
PHYUPDCNT TYPE STRING,
DELCNT TYPE STRING,
DELTI TYPE STRING,
DELREC TYPE STRING,
PHYDELCNT TYPE STRING,
COMMITTI TYPE STRING,
DBPROCNT TYPE STRING,
DBPROCTI TYPE STRING,
ENDSEC_REC_CNT TYPE STRING,
LOGRECID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCMSBI_WAST_TEST_DB_SEG_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_CCMSBI_WAST_TEST_DB_SEG_STR-BW_STATR_OBJID sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-CONNECTION_NAME sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-READDIRCNT sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-READDIRTI sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-READDIRREC sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-READDIRBUF sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-READSEQCNT sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-READSEQTI sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-READSEQREC sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-READSEQBUF sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-PHYREADCNT sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-INSCNT sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-INSTI sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-INSREC sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-PHYINSCNT sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-UPDCNT sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-UPDTI sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-UPDREC sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-PHYUPDCNT sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-DELCNT sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-DELTI sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-DELREC sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-PHYDELCNT sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-COMMITTI sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-DBPROCNT sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-DBPROCTI sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-ENDSEC_REC_CNT sy-vline 
WA_CCMSBI_WAST_TEST_DB_SEG_STR-LOGRECID sy-vline      INTO ld_text SEPARATED BY SPACE.

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