ABAP Select data from SAP table CHASSUBINVTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CHASSUBINVTP
*  INTO TABLE @DATA(IT_CHASSUBINVTP2).
*--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_CHASSUBINVTP INDEX 1 INTO DATA(WA_CHASSUBINVTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CHASSUBINVTP>-MANDT = 1.
<CHASSUBINVTP>-HZDSSUBSTINVENTORYUUID = 1.
<CHASSUBINVTP>-EHSLOCATIONUUID = 1.
<CHASSUBINVTP>-EHSLOCATIONNAME = 1.
<CHASSUBINVTP>-PLANT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CHASSUBINVTP-PLANTNAME, sy-vline,
  WA_CHASSUBINVTP-HZDSSUBSTINVENTORYMJRREVISION, sy-vline,
  WA_CHASSUBINVTP-HZDSSUBSTINVENTORYMNRREVISION, sy-vline,
  WA_CHASSUBINVTP-HZDSSUBSTINVENTORYREVISION, sy-vline,
  WA_CHASSUBINVTP-CREATIONUTCDATETIME, sy-vline,
  WA_CHASSUBINVTP-LASTCHANGEUTCDATETIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CHASSUBINVTP 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_CHASSUBINVTP 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_CHASSUBINVTP INTO WA_CHASSUBINVTP.


*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 COSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CHASSUBINVTP-COSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CHASSUBINVTP-COSTCENTER.
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_CHASSUBINVTP_STR, 
MANDT TYPE STRING,
HZDSSUBSTINVENTORYUUID TYPE STRING,
EHSLOCATIONUUID TYPE STRING,
EHSLOCATIONNAME TYPE STRING,
PLANT TYPE STRING,
PLANTNAME TYPE STRING,
HZDSSUBSTINVENTORYMJRREVISION TYPE STRING,
HZDSSUBSTINVENTORYMNRREVISION TYPE STRING,
HZDSSUBSTINVENTORYREVISION TYPE STRING,
CREATIONUTCDATETIME TYPE STRING,
LASTCHANGEUTCDATETIME TYPE STRING,
CREATEDBYUSERDESCRIPTION TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDBYUSERDESCRIPTION TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
HZDSSUBSTINVTRYSTSCRITICALITY TYPE STRING,
HZDSSUBSTINVENTORYSTATUS TYPE STRING,
HZDSSUBSTINVTRYRELUTCDATETIME TYPE STRING,
HZDSSUBSTINVTRYCALCISRUNNING TYPE STRING,
HZDSSUBSTINVENTORYITEMCOUNT TYPE STRING,
HZDSSUBSTINVTRYNMBROFCMPLTDITM TYPE STRING,
RELEASEDBYUSERNAME TYPE STRING,
RELEASEDBYUSER TYPE STRING,
HZDSSUBSTINVENTORYNOTE TYPE STRING,
CITYNAME TYPE STRING,
COUNTRY TYPE STRING,
EHSLOCATIONTYPE TYPE STRING,
EHSLOCATIONSTATUS TYPE STRING,
EHSLOCATIONAUTHORIZATIONGROUP TYPE STRING,
COSTCENTER TYPE STRING,
ORGANIZATIONALUNIT TYPE STRING,
COMPANYCODE TYPE STRING,
BUSINESSAREA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CHASSUBINVTP_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_CHASSUBINVTP_STR-MANDT sy-vline 
WA_CHASSUBINVTP_STR-HZDSSUBSTINVENTORYUUID sy-vline 
WA_CHASSUBINVTP_STR-EHSLOCATIONUUID sy-vline 
WA_CHASSUBINVTP_STR-EHSLOCATIONNAME sy-vline 
WA_CHASSUBINVTP_STR-PLANT sy-vline 
WA_CHASSUBINVTP_STR-PLANTNAME sy-vline 
WA_CHASSUBINVTP_STR-HZDSSUBSTINVENTORYMJRREVISION sy-vline 
WA_CHASSUBINVTP_STR-HZDSSUBSTINVENTORYMNRREVISION sy-vline 
WA_CHASSUBINVTP_STR-HZDSSUBSTINVENTORYREVISION sy-vline 
WA_CHASSUBINVTP_STR-CREATIONUTCDATETIME sy-vline 
WA_CHASSUBINVTP_STR-LASTCHANGEUTCDATETIME sy-vline 
WA_CHASSUBINVTP_STR-CREATEDBYUSERDESCRIPTION sy-vline 
WA_CHASSUBINVTP_STR-CREATEDBYUSER sy-vline 
WA_CHASSUBINVTP_STR-LASTCHANGEDBYUSERDESCRIPTION sy-vline 
WA_CHASSUBINVTP_STR-LASTCHANGEDBYUSER sy-vline 
WA_CHASSUBINVTP_STR-HZDSSUBSTINVTRYSTSCRITICALITY sy-vline 
WA_CHASSUBINVTP_STR-HZDSSUBSTINVENTORYSTATUS sy-vline 
WA_CHASSUBINVTP_STR-HZDSSUBSTINVTRYRELUTCDATETIME sy-vline 
WA_CHASSUBINVTP_STR-HZDSSUBSTINVTRYCALCISRUNNING sy-vline 
WA_CHASSUBINVTP_STR-HZDSSUBSTINVENTORYITEMCOUNT sy-vline 
WA_CHASSUBINVTP_STR-HZDSSUBSTINVTRYNMBROFCMPLTDITM sy-vline 
WA_CHASSUBINVTP_STR-RELEASEDBYUSERNAME sy-vline 
WA_CHASSUBINVTP_STR-RELEASEDBYUSER sy-vline 
WA_CHASSUBINVTP_STR-HZDSSUBSTINVENTORYNOTE sy-vline 
WA_CHASSUBINVTP_STR-CITYNAME sy-vline 
WA_CHASSUBINVTP_STR-COUNTRY sy-vline 
WA_CHASSUBINVTP_STR-EHSLOCATIONTYPE sy-vline 
WA_CHASSUBINVTP_STR-EHSLOCATIONSTATUS sy-vline 
WA_CHASSUBINVTP_STR-EHSLOCATIONAUTHORIZATIONGROUP sy-vline 
WA_CHASSUBINVTP_STR-COSTCENTER sy-vline 
WA_CHASSUBINVTP_STR-ORGANIZATIONALUNIT sy-vline 
WA_CHASSUBINVTP_STR-COMPANYCODE sy-vline 
WA_CHASSUBINVTP_STR-BUSINESSAREA sy-vline      INTO ld_text SEPARATED BY SPACE.

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