ABAP Select data from SAP table /SRMSMC/S_CONTACT_CENTRAL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SRMSMC/S_CONTACT_CENTRAL 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 /SRMSMC/S_CONTACT_CENTRAL. 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 /SRMSMC/S_CONTACT_CENTRAL 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_/SRMSMC/S_CONTACT_CENTRAL TYPE STANDARD TABLE OF /SRMSMC/S_CONTACT_CENTRAL,
      WA_/SRMSMC/S_CONTACT_CENTRAL TYPE /SRMSMC/S_CONTACT_CENTRAL,
      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: </SRMSMC/S_CONTACT_CENTRAL> TYPE /SRMSMC/S_CONTACT_CENTRAL.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SRMSMC/S_CONTACT_CENTRAL
  INTO TABLE IT_/SRMSMC/S_CONTACT_CENTRAL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SRMSMC/S_CONTACT_CENTRAL
*  INTO TABLE @DATA(IT_/SRMSMC/S_CONTACT_CENTRAL2).
*--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_/SRMSMC/S_CONTACT_CENTRAL INDEX 1 INTO DATA(WA_/SRMSMC/S_CONTACT_CENTRAL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SRMSMC/S_CONTACT_CENTRAL ASSIGNING </SRMSMC/S_CONTACT_CENTRAL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SRMSMC/S_CONTACT_CENTRAL>-DEFAULTRELATIONSHIP = 1.
</SRMSMC/S_CONTACT_CENTRAL>-TITLE_KEY = 1.
</SRMSMC/S_CONTACT_CENTRAL>-FIRSTNAME = 1.
</SRMSMC/S_CONTACT_CENTRAL>-LASTNAME = 1.
</SRMSMC/S_CONTACT_CENTRAL>-TITLE_ACA1 = 1.

ENDLOOP.

LOOP AT IT_/SRMSMC/S_CONTACT_CENTRAL INTO WA_/SRMSMC/S_CONTACT_CENTRAL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SRMSMC/S_CONTACT_CENTRAL-TITLE_ACA2, sy-vline,
  WA_/SRMSMC/S_CONTACT_CENTRAL-TITLE_SPPL, sy-vline,
  WA_/SRMSMC/S_CONTACT_CENTRAL-PREFIX1, sy-vline,
  WA_/SRMSMC/S_CONTACT_CENTRAL-PREFIX2, sy-vline,
  WA_/SRMSMC/S_CONTACT_CENTRAL-NAMEFORMAT, sy-vline,
  WA_/SRMSMC/S_CONTACT_CENTRAL-NAMCOUNTRY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SRMSMC/S_CONTACT_CENTRAL 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_/SRMSMC/S_CONTACT_CENTRAL 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_/SRMSMC/S_CONTACT_CENTRAL INTO WA_/SRMSMC/S_CONTACT_CENTRAL.


*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 ISOLA, internal->external for field PARTNERLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_/SRMSMC/S_CONTACT_CENTRAL-PARTNERLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SRMSMC/S_CONTACT_CENTRAL-PARTNERLANGUAGE.
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_/SRMSMC/S_CONTACT_CENTRAL_STR, 
DEFAULTRELATIONSHIP TYPE STRING,
TITLE_KEY TYPE STRING,
FIRSTNAME TYPE STRING,
LASTNAME TYPE STRING,
TITLE_ACA1 TYPE STRING,
TITLE_ACA2 TYPE STRING,
TITLE_SPPL TYPE STRING,
PREFIX1 TYPE STRING,
PREFIX2 TYPE STRING,
NAMEFORMAT TYPE STRING,
NAMCOUNTRY TYPE STRING,
FULLNAME TYPE STRING,
PARTNERLANGUAGE TYPE STRING,
SEARCHTERM1 TYPE STRING,
SEARCHTERM2 TYPE STRING,
PRINT_MODE TYPE STRING,
XDELE TYPE STRING,
XBLCK TYPE STRING,
BP_EEW_DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SRMSMC/S_CONTACT_CENTRAL_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_/SRMSMC/S_CONTACT_CENTRAL_STR-DEFAULTRELATIONSHIP sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-TITLE_KEY sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-FIRSTNAME sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-LASTNAME sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-TITLE_ACA1 sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-TITLE_ACA2 sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-TITLE_SPPL sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-PREFIX1 sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-PREFIX2 sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-NAMEFORMAT sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-NAMCOUNTRY sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-FULLNAME sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-PARTNERLANGUAGE sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-SEARCHTERM1 sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-SEARCHTERM2 sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-PRINT_MODE sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-XDELE sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-XBLCK sy-vline 
WA_/SRMSMC/S_CONTACT_CENTRAL_STR-BP_EEW_DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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