ABAP Select data from SAP table MEREQ_S_BIDDER_SRCH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MEREQ_S_BIDDER_SRCH
*  INTO TABLE @DATA(IT_MEREQ_S_BIDDER_SRCH2).
*--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_MEREQ_S_BIDDER_SRCH INDEX 1 INTO DATA(WA_MEREQ_S_BIDDER_SRCH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MEREQ_S_BIDDER_SRCH>-PARTNER = 1.
<MEREQ_S_BIDDER_SRCH>-MC_NAME1 = 1.
<MEREQ_S_BIDDER_SRCH>-MC_NAME2 = 1.
<MEREQ_S_BIDDER_SRCH>-MC_CITY = 1.
<MEREQ_S_BIDDER_SRCH>-POST_CODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MEREQ_S_BIDDER_SRCH-COUNTRY, sy-vline,
  WA_MEREQ_S_BIDDER_SRCH-E_MAIL, sy-vline,
  WA_MEREQ_S_BIDDER_SRCH-IND_SECTOR, sy-vline,
  WA_MEREQ_S_BIDDER_SRCH-REGION, sy-vline,
  WA_MEREQ_S_BIDDER_SRCH-QSSYS, sy-vline,
  WA_MEREQ_S_BIDDER_SRCH-WOM_OWN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MEREQ_S_BIDDER_SRCH 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_MEREQ_S_BIDDER_SRCH 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_MEREQ_S_BIDDER_SRCH INTO WA_MEREQ_S_BIDDER_SRCH.


*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 SXIDN, internal->external for field E_MAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_MEREQ_S_BIDDER_SRCH-E_MAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MEREQ_S_BIDDER_SRCH-E_MAIL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER_2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MEREQ_S_BIDDER_SRCH-PARTNER_2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MEREQ_S_BIDDER_SRCH-PARTNER_2.
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_MEREQ_S_BIDDER_SRCH_STR, 
PARTNER TYPE STRING,
MC_NAME1 TYPE STRING,
MC_NAME2 TYPE STRING,
MC_CITY TYPE STRING,
POST_CODE TYPE STRING,
COUNTRY TYPE STRING,
E_MAIL TYPE STRING,
IND_SECTOR TYPE STRING,
REGION TYPE STRING,
QSSYS TYPE STRING,
WOM_OWN TYPE STRING,
MIN_OWN TYPE STRING,
BID_ON_BEH TYPE STRING,
PARTNER_GUID TYPE STRING,
PARTNER_NO TYPE STRING,
NAME_ORG TYPE STRING,
DUNS_NUM TYPE STRING,
BU_SORT1 TYPE STRING,
BU_SORT2 TYPE STRING,
PARTNER_2 TYPE STRING,
PARTNER2_GUID TYPE STRING,
PARTNER2_NO TYPE STRING,
NAME2_FIRST TYPE STRING,
NAME2_LAST TYPE STRING,
LIST_CONTACTS_ONLY TYPE STRING,
LIST_SERVICES_ONLY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MEREQ_S_BIDDER_SRCH_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_MEREQ_S_BIDDER_SRCH_STR-PARTNER sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-MC_NAME1 sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-MC_NAME2 sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-MC_CITY sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-POST_CODE sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-COUNTRY sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-E_MAIL sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-IND_SECTOR sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-REGION sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-QSSYS sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-WOM_OWN sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-MIN_OWN sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-BID_ON_BEH sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-PARTNER_GUID sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-PARTNER_NO sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-NAME_ORG sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-DUNS_NUM sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-BU_SORT1 sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-BU_SORT2 sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-PARTNER_2 sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-PARTNER2_GUID sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-PARTNER2_NO sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-NAME2_FIRST sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-NAME2_LAST sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-LIST_CONTACTS_ONLY sy-vline 
WA_MEREQ_S_BIDDER_SRCH_STR-LIST_SERVICES_ONLY sy-vline      INTO ld_text SEPARATED BY SPACE.

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