ABAP Select data from SAP table CVDDHHITS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CVDDHHITS
*  INTO TABLE @DATA(IT_CVDDHHITS2).
*--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_CVDDHHITS INDEX 1 INTO DATA(WA_CVDDHHITS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CVDDHHITS>-LOGID = 1.
<CVDDHHITS>-DDOCID = 1.
<CVDDHHITS>-REASONTYP = 1.
<CVDDHHITS>-REPORTICON = 1.
<CVDDHHITS>-MATNAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CVDDHHITS-MATNR, sy-vline,
  WA_CVDDHHITS-SUBID, sy-vline,
  WA_CVDDHHITS-WANAM, sy-vline,
  WA_CVDDHHITS-WAID, sy-vline,
  WA_CVDDHHITS-FULLNAME, sy-vline,
  WA_CVDDHHITS-IPPERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CVDDHHITS 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_CVDDHHITS 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_CVDDHHITS INTO WA_CVDDHHITS.


*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.

*Conversion exit ALPHA, internal->external for field DDOCID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CVDDHHITS-DDOCID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CVDDHHITS-DDOCID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CVDDHHITS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CVDDHHITS-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SPEC1, internal->external for field SUBID
CALL FUNCTION 'CONVERSION_EXIT_SPEC1_OUTPUT'
  EXPORTING
    input =                      WA_CVDDHHITS-SUBID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CVDDHHITS-SUBID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CHRID, internal->external for field SBGVID
CALL FUNCTION 'CONVERSION_EXIT_CHRID_OUTPUT'
  EXPORTING
    input =                      WA_CVDDHHITS-SBGVID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CVDDHHITS-SBGVID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CVDDHHITS-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CVDDHHITS-LANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DDOID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CVDDHHITS-DDOID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CVDDHHITS-DDOID.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CVDDHHITS_STR, 
LOGID TYPE STRING,
DDOCID TYPE STRING,
REASONTYP TYPE STRING,
REPORTICON TYPE STRING,
MATNAM TYPE STRING,
MATNR TYPE STRING,
SUBID TYPE STRING,
WANAM TYPE STRING,
WAID TYPE STRING,
FULLNAME TYPE STRING,
IPPERS TYPE STRING,
IALID TYPE STRING,
FULLNAME_FAL TYPE STRING,
FAID TYPE STRING,
MNNOCTRY TYPE STRING,
MNINO TYPE STRING,
APPNO TYPE STRING,
INTAPPNO TYPE STRING,
OBJECTNAM TYPE STRING,
OBJECTKEY TYPE STRING,
SBGVID TYPE STRING,
LANGU TYPE STRING,
REPTYPE TYPE STRING,
REPSTATUS TYPE STRING,
VERSTXT TYPE STRING,
INITIATOR TYPE STRING,
CRDAT TYPE STRING,
CRTIM TYPE STRING,
STARTDAT TYPE STRING,
DDOID TYPE STRING,
JOBID TYPE STRING,
DDOCNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CVDDHHITS_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_CVDDHHITS_STR-LOGID sy-vline 
WA_CVDDHHITS_STR-DDOCID sy-vline 
WA_CVDDHHITS_STR-REASONTYP sy-vline 
WA_CVDDHHITS_STR-REPORTICON sy-vline 
WA_CVDDHHITS_STR-MATNAM sy-vline 
WA_CVDDHHITS_STR-MATNR sy-vline 
WA_CVDDHHITS_STR-SUBID sy-vline 
WA_CVDDHHITS_STR-WANAM sy-vline 
WA_CVDDHHITS_STR-WAID sy-vline 
WA_CVDDHHITS_STR-FULLNAME sy-vline 
WA_CVDDHHITS_STR-IPPERS sy-vline 
WA_CVDDHHITS_STR-IALID sy-vline 
WA_CVDDHHITS_STR-FULLNAME_FAL sy-vline 
WA_CVDDHHITS_STR-FAID sy-vline 
WA_CVDDHHITS_STR-MNNOCTRY sy-vline 
WA_CVDDHHITS_STR-MNINO sy-vline 
WA_CVDDHHITS_STR-APPNO sy-vline 
WA_CVDDHHITS_STR-INTAPPNO sy-vline 
WA_CVDDHHITS_STR-OBJECTNAM sy-vline 
WA_CVDDHHITS_STR-OBJECTKEY sy-vline 
WA_CVDDHHITS_STR-SBGVID sy-vline 
WA_CVDDHHITS_STR-LANGU sy-vline 
WA_CVDDHHITS_STR-REPTYPE sy-vline 
WA_CVDDHHITS_STR-REPSTATUS sy-vline 
WA_CVDDHHITS_STR-VERSTXT sy-vline 
WA_CVDDHHITS_STR-INITIATOR sy-vline 
WA_CVDDHHITS_STR-CRDAT sy-vline 
WA_CVDDHHITS_STR-CRTIM sy-vline 
WA_CVDDHHITS_STR-STARTDAT sy-vline 
WA_CVDDHHITS_STR-DDOID sy-vline 
WA_CVDDHHITS_STR-JOBID sy-vline 
WA_CVDDHHITS_STR-DDOCNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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