ABAP Select data from SAP table ALEAD into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ALEAD 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 ALEAD. 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 ALEAD 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_ALEAD TYPE STANDARD TABLE OF ALEAD,
      WA_ALEAD TYPE ALEAD,
      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: <ALEAD> TYPE ALEAD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ALEAD
*  INTO TABLE @DATA(IT_ALEAD2).
*--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_ALEAD INDEX 1 INTO DATA(WA_ALEAD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ALEAD>-MANDT = 1.
<ALEAD>-LEAD = 1.
<ALEAD>-LEADPROCESSTYPE = 1.
<ALEAD>-LEADDESCRIPTION = 1.
<ALEAD>-LEADUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ALEAD-LEADORIGIN, sy-vline,
  WA_ALEAD-LEADPRIORITY, sy-vline,
  WA_ALEAD-STATUSACTIVESINCEDATE, sy-vline,
  WA_ALEAD-LEADGROUP, sy-vline,
  WA_ALEAD-LEADQUALIFICATIONLEVEL, sy-vline,
  WA_ALEAD-LEADENDDATETIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ALEAD 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_ALEAD 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_ALEAD INTO WA_ALEAD.


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

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

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

*Conversion exit ALPHA, internal->external for field PROSPECT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ALEAD-PROSPECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ALEAD-PROSPECT.
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_ALEAD_STR, 
MANDT TYPE STRING,
LEAD TYPE STRING,
LEADPROCESSTYPE TYPE STRING,
LEADDESCRIPTION TYPE STRING,
LEADUUID TYPE STRING,
LEADORIGIN TYPE STRING,
LEADPRIORITY TYPE STRING,
STATUSACTIVESINCEDATE TYPE STRING,
LEADGROUP TYPE STRING,
LEADQUALIFICATIONLEVEL TYPE STRING,
LEADENDDATETIME TYPE STRING,
LEADSTARTDATETIME TYPE STRING,
LEADISCOMPLETED TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
SALESORGANIZATIONORGUNITID TYPE STRING,
SALESOFFICEORGUNITID TYPE STRING,
SALESGROUPORGUNITID TYPE STRING,
RESPONSIBLESALESORGANIZATION TYPE STRING,
SERVICEORGANIZATION TYPE STRING,
RESPONSIBLESERVICEORGANIZATION TYPE STRING,
SALESREPRESENTATIVE TYPE STRING,
CONTACTPERSON TYPE STRING,
PROSPECT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ALEAD_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_ALEAD_STR-MANDT sy-vline 
WA_ALEAD_STR-LEAD sy-vline 
WA_ALEAD_STR-LEADPROCESSTYPE sy-vline 
WA_ALEAD_STR-LEADDESCRIPTION sy-vline 
WA_ALEAD_STR-LEADUUID sy-vline 
WA_ALEAD_STR-LEADORIGIN sy-vline 
WA_ALEAD_STR-LEADPRIORITY sy-vline 
WA_ALEAD_STR-STATUSACTIVESINCEDATE sy-vline 
WA_ALEAD_STR-LEADGROUP sy-vline 
WA_ALEAD_STR-LEADQUALIFICATIONLEVEL sy-vline 
WA_ALEAD_STR-LEADENDDATETIME sy-vline 
WA_ALEAD_STR-LEADSTARTDATETIME sy-vline 
WA_ALEAD_STR-LEADISCOMPLETED sy-vline 
WA_ALEAD_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_ALEAD_STR-DIVISION sy-vline 
WA_ALEAD_STR-SALESORGANIZATIONORGUNITID sy-vline 
WA_ALEAD_STR-SALESOFFICEORGUNITID sy-vline 
WA_ALEAD_STR-SALESGROUPORGUNITID sy-vline 
WA_ALEAD_STR-RESPONSIBLESALESORGANIZATION sy-vline 
WA_ALEAD_STR-SERVICEORGANIZATION sy-vline 
WA_ALEAD_STR-RESPONSIBLESERVICEORGANIZATION sy-vline 
WA_ALEAD_STR-SALESREPRESENTATIVE sy-vline 
WA_ALEAD_STR-CONTACTPERSON sy-vline 
WA_ALEAD_STR-PROSPECT sy-vline      INTO ld_text SEPARATED BY SPACE.

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