ABAP Select data from SAP table CRMT_ODATA_LEAD_HEADER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_ODATA_LEAD_HEADER
*  INTO TABLE @DATA(IT_CRMT_ODATA_LEAD_HEADER2).
*--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_CRMT_ODATA_LEAD_HEADER INDEX 1 INTO DATA(WA_CRMT_ODATA_LEAD_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_ODATA_LEAD_HEADER>-GUID = 1.
<CRMT_ODATA_LEAD_HEADER>-OBJECT_ID = 1.
<CRMT_ODATA_LEAD_HEADER>-PROCESS_TYPE = 1.
<CRMT_ODATA_LEAD_HEADER>-DESCRIPTION = 1.
<CRMT_ODATA_LEAD_HEADER>-P_DESCRIPTION_20 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_ODATA_LEAD_HEADER-P_DESCRIPTION, sy-vline,
  WA_CRMT_ODATA_LEAD_HEADER-VALID_FROM, sy-vline,
  WA_CRMT_ODATA_LEAD_HEADER-VALID_TO, sy-vline,
  WA_CRMT_ODATA_LEAD_HEADER-SOURCE, sy-vline,
  WA_CRMT_ODATA_LEAD_HEADER-SOURCE_TXT, sy-vline,
  WA_CRMT_ODATA_LEAD_HEADER-IMPORTANCE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_ODATA_LEAD_HEADER 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_CRMT_ODATA_LEAD_HEADER 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_CRMT_ODATA_LEAD_HEADER INTO WA_CRMT_ODATA_LEAD_HEADER.


*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 OBJECT_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_ODATA_LEAD_HEADER-OBJECT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_ODATA_LEAD_HEADER-OBJECT_ID.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field PERSON_RESP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_ODATA_LEAD_HEADER-PERSON_RESP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_ODATA_LEAD_HEADER-PERSON_RESP.
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_CRMT_ODATA_LEAD_HEADER_STR, 
GUID TYPE STRING,
OBJECT_ID TYPE STRING,
PROCESS_TYPE TYPE STRING,
DESCRIPTION TYPE STRING,
P_DESCRIPTION_20 TYPE STRING,
P_DESCRIPTION TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
SOURCE TYPE STRING,
SOURCE_TXT TYPE STRING,
IMPORTANCE TYPE STRING,
IMPORTANCE_TXT TYPE STRING,
QUAL_LEVEL_MAN TYPE STRING,
QUAL_LEVEL_TXT TYPE STRING,
PROSPECT TYPE STRING,
PROSPECT_LIST TYPE STRING,
ESTAT TYPE STRING,
TEXT30 TYPE STRING,
ISTAT TYPE STRING,
CAMPAIGN_ID TYPE STRING,
CAMPAIGN_DESC TYPE STRING,
CONTACT_PERSON TYPE STRING,
CONTACT_PERSON_LIST TYPE STRING,
DUMMY_LEAD_HEADER_INCL TYPE STRING,
PERSON_RESP TYPE STRING,
PERSON_RESP_LIST TYPE STRING,
ETAG TYPE STRING,
SALES_ORG TYPE STRING,
SALES_ORG_TEXT TYPE STRING,
CHANNEL TYPE STRING,
CHANNEL_TEXT TYPE STRING,
DIVISION TYPE STRING,
DIVISION_TEXT TYPE STRING,
SEARCH_TEXT TYPE STRING,
BYPASS_MAXHIT TYPE STRING,
IS_MY_LEAD TYPE STRING,
PRE_DEC_OBJECT_GUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_ODATA_LEAD_HEADER_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_CRMT_ODATA_LEAD_HEADER_STR-GUID sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-OBJECT_ID sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-PROCESS_TYPE sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-DESCRIPTION sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-P_DESCRIPTION_20 sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-P_DESCRIPTION sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-VALID_FROM sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-VALID_TO sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-SOURCE sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-SOURCE_TXT sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-IMPORTANCE sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-IMPORTANCE_TXT sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-QUAL_LEVEL_MAN sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-QUAL_LEVEL_TXT sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-PROSPECT sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-PROSPECT_LIST sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-ESTAT sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-TEXT30 sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-ISTAT sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-CAMPAIGN_ID sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-CAMPAIGN_DESC sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-CONTACT_PERSON sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-CONTACT_PERSON_LIST sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-DUMMY_LEAD_HEADER_INCL sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-PERSON_RESP sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-PERSON_RESP_LIST sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-ETAG sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-SALES_ORG sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-SALES_ORG_TEXT sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-CHANNEL sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-CHANNEL_TEXT sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-DIVISION sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-DIVISION_TEXT sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-SEARCH_TEXT sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-BYPASS_MAXHIT sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-IS_MY_LEAD sy-vline 
WA_CRMT_ODATA_LEAD_HEADER_STR-PRE_DEC_OBJECT_GUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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