ABAP Select data from SAP table BBPS_SEARCH_MAINLIST_PO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BBPS_SEARCH_MAINLIST_PO
*  INTO TABLE @DATA(IT_BBPS_SEARCH_MAINLIST_PO2).
*--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_BBPS_SEARCH_MAINLIST_PO INDEX 1 INTO DATA(WA_BBPS_SEARCH_MAINLIST_PO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BBPS_SEARCH_MAINLIST_PO>-MARK = 1.
<BBPS_SEARCH_MAINLIST_PO>-OBJECT_ID = 1.
<BBPS_SEARCH_MAINLIST_PO>-DESCRIPTION = 1.
<BBPS_SEARCH_MAINLIST_PO>-PARENT_BASKET = 1.
<BBPS_SEARCH_MAINLIST_PO>-CREATED_BY_NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BBPS_SEARCH_MAINLIST_PO-POSTING_DATE, sy-vline,
  WA_BBPS_SEARCH_MAINLIST_PO-CREATED_ON, sy-vline,
  WA_BBPS_SEARCH_MAINLIST_PO-STATUS_DESCR, sy-vline,
  WA_BBPS_SEARCH_MAINLIST_PO-VENDOR_NO, sy-vline,
  WA_BBPS_SEARCH_MAINLIST_PO-VENDOR_NAME, sy-vline,
  WA_BBPS_SEARCH_MAINLIST_PO-CO_CODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BBPS_SEARCH_MAINLIST_PO 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_BBPS_SEARCH_MAINLIST_PO 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_BBPS_SEARCH_MAINLIST_PO INTO WA_BBPS_SEARCH_MAINLIST_PO.


*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_BBPS_SEARCH_MAINLIST_PO-OBJECT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_SEARCH_MAINLIST_PO-OBJECT_ID.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field BE_LOG_SYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_SEARCH_MAINLIST_PO-BE_LOG_SYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_SEARCH_MAINLIST_PO-BE_LOG_SYSTEM.
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_BBPS_SEARCH_MAINLIST_PO_STR, 
MARK TYPE STRING,
OBJECT_ID TYPE STRING,
DESCRIPTION TYPE STRING,
PARENT_BASKET TYPE STRING,
CREATED_BY_NAME TYPE STRING,
POSTING_DATE TYPE STRING,
CREATED_ON TYPE STRING,
STATUS_DESCR TYPE STRING,
VENDOR_NO TYPE STRING,
VENDOR_NAME TYPE STRING,
CO_CODE TYPE STRING,
GRSE_CREATE TYPE STRING,
TIME_CREATE TYPE STRING,
DUMMY_EEW_PD_SEARCH_HSS_PO TYPE STRING,
PS_CANCEL_IND TYPE STRING,
PS_PARK_IND TYPE STRING,
PS_SELPROM_BLOCK TYPE STRING,
PS_SELPROM_REL TYPE STRING,
PS_US01 TYPE STRING,
PS_US02 TYPE STRING,
PS_US03 TYPE STRING,
PS_US04 TYPE STRING,
PS_US05 TYPE STRING,
PS_US06 TYPE STRING,
PS_US07 TYPE STRING,
PS_US08 TYPE STRING,
PS_US09 TYPE STRING,
PS_US10 TYPE STRING,
PS_US01_TXT TYPE STRING,
PS_US02_TXT TYPE STRING,
PS_US03_TXT TYPE STRING,
PS_US04_TXT TYPE STRING,
PS_US05_TXT TYPE STRING,
PS_US06_TXT TYPE STRING,
PS_US07_TXT TYPE STRING,
PS_US08_TXT TYPE STRING,
PS_US09_TXT TYPE STRING,
PS_US10_TXT TYPE STRING,
PS_IPT TYPE STRING,
EXLIN TYPE STRING,
VZSKZ TYPE STRING,
DUMMY_EEW_PD_SEARCH_HSC_PO TYPE STRING,
DUMMY_EEW_PD_SEARCH_HSD_PO TYPE STRING,
OBJECT_TYPE TYPE STRING,
CREATED_BY TYPE STRING,
CURRENCY TYPE STRING,
BE_LOG_SYSTEM TYPE STRING,
BE_ITEM_SRV TYPE STRING,
VENDOR_GUID TYPE STRING,
STATUS TYPE STRING,
LINE_NUMBER TYPE STRING,
EXPANDED TYPE STRING,
GUID TYPE STRING,
STATUS_LONG TYPE STRING,
SUBTYPE TYPE STRING,
PROC_ORG TYPE STRING,
PROC_GROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BBPS_SEARCH_MAINLIST_PO_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_BBPS_SEARCH_MAINLIST_PO_STR-MARK sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-OBJECT_ID sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-DESCRIPTION sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PARENT_BASKET sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-CREATED_BY_NAME sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-POSTING_DATE sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-CREATED_ON sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-STATUS_DESCR sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-VENDOR_NO sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-VENDOR_NAME sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-CO_CODE sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-GRSE_CREATE sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-TIME_CREATE sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-DUMMY_EEW_PD_SEARCH_HSS_PO sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_CANCEL_IND sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_PARK_IND sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_SELPROM_BLOCK sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_SELPROM_REL sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US01 sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US02 sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US03 sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US04 sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US05 sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US06 sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US07 sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US08 sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US09 sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US10 sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US01_TXT sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US02_TXT sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US03_TXT sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US04_TXT sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US05_TXT sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US06_TXT sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US07_TXT sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US08_TXT sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US09_TXT sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_US10_TXT sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PS_IPT sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-EXLIN sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-VZSKZ sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-DUMMY_EEW_PD_SEARCH_HSC_PO sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-DUMMY_EEW_PD_SEARCH_HSD_PO sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-OBJECT_TYPE sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-CREATED_BY sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-CURRENCY sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-BE_LOG_SYSTEM sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-BE_ITEM_SRV sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-VENDOR_GUID sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-STATUS sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-LINE_NUMBER sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-EXPANDED sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-GUID sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-STATUS_LONG sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-SUBTYPE sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PROC_ORG sy-vline 
WA_BBPS_SEARCH_MAINLIST_PO_STR-PROC_GROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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