ABAP Select data from SAP table BCONT 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 BCONT 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 BCONT. 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 BCONT 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_BCONT TYPE STANDARD TABLE OF BCONT,
      WA_BCONT TYPE BCONT,
      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: <BCONT> TYPE BCONT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BCONT
*  INTO TABLE @DATA(IT_BCONT2).
*--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_BCONT INDEX 1 INTO DATA(WA_BCONT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BCONT>-MANDT = 1.
<BCONT>-BPCONTACT = 1.
<BCONT>-PCATEGORY = 1.
<BCONT>-PARTNER = 1.
<BCONT>-ALTPARTNER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BCONT-RLTYP, sy-vline,
  WA_BCONT-CTYPE, sy-vline,
  WA_BCONT-CCLASS, sy-vline,
  WA_BCONT-ACTIVITY, sy-vline,
  WA_BCONT-F_COMING, sy-vline,
  WA_BCONT-ORIGIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BCONT 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_BCONT 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_BCONT INTO WA_BCONT.


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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field CUSTINFO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BCONT-CUSTINFO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BCONT-CUSTINFO.
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_BCONT_STR, 
MANDT TYPE STRING,
BPCONTACT TYPE STRING,
PCATEGORY TYPE STRING,
PARTNER TYPE STRING,
ALTPARTNER TYPE STRING,
RLTYP TYPE STRING,
CTYPE TYPE STRING,
CCLASS TYPE STRING,
ACTIVITY TYPE STRING,
F_COMING TYPE STRING,
ORIGIN TYPE STRING,
CTDATE TYPE STRING,
CTTIME TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
BEGRU TYPE STRING,
LOEVM TYPE STRING,
WFID TYPE STRING,
ADDINFO TYPE STRING,
PRIORITY TYPE STRING,
CUSTINFO TYPE STRING,
SPARTE TYPE STRING,
BUKRS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BCONT_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_BCONT_STR-MANDT sy-vline 
WA_BCONT_STR-BPCONTACT sy-vline 
WA_BCONT_STR-PCATEGORY sy-vline 
WA_BCONT_STR-PARTNER sy-vline 
WA_BCONT_STR-ALTPARTNER sy-vline 
WA_BCONT_STR-RLTYP sy-vline 
WA_BCONT_STR-CTYPE sy-vline 
WA_BCONT_STR-CCLASS sy-vline 
WA_BCONT_STR-ACTIVITY sy-vline 
WA_BCONT_STR-F_COMING sy-vline 
WA_BCONT_STR-ORIGIN sy-vline 
WA_BCONT_STR-CTDATE sy-vline 
WA_BCONT_STR-CTTIME sy-vline 
WA_BCONT_STR-ERDAT sy-vline 
WA_BCONT_STR-ERNAM sy-vline 
WA_BCONT_STR-AEDAT sy-vline 
WA_BCONT_STR-AENAM sy-vline 
WA_BCONT_STR-BEGRU sy-vline 
WA_BCONT_STR-LOEVM sy-vline 
WA_BCONT_STR-WFID sy-vline 
WA_BCONT_STR-ADDINFO sy-vline 
WA_BCONT_STR-PRIORITY sy-vline 
WA_BCONT_STR-CUSTINFO sy-vline 
WA_BCONT_STR-SPARTE sy-vline 
WA_BCONT_STR-BUKRS sy-vline      INTO ld_text SEPARATED BY SPACE.

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