ABAP Select data from SAP table BBP_BAPIESSRC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BBP_BAPIESSRC
*  INTO TABLE @DATA(IT_BBP_BAPIESSRC2).
*--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_BBP_BAPIESSRC INDEX 1 INTO DATA(WA_BBP_BAPIESSRC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BBP_BAPIESSRC>-SHEET_NO = 1.
<BBP_BAPIESSRC>-EXT_NUMBER = 1.
<BBP_BAPIESSRC>-PERSON_INT = 1.
<BBP_BAPIESSRC>-PERSON_EXT = 1.
<BBP_BAPIESSRC>-LOCATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BBP_BAPIESSRC-REF_DATE, sy-vline,
  WA_BBP_BAPIESSRC-BEGDATE, sy-vline,
  WA_BBP_BAPIESSRC-ENDDATE, sy-vline,
  WA_BBP_BAPIESSRC-PCKG_NO, sy-vline,
  WA_BBP_BAPIESSRC-SHORT_TEXT, sy-vline,
  WA_BBP_BAPIESSRC-PO_NUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BBP_BAPIESSRC 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_BBP_BAPIESSRC 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_BBP_BAPIESSRC INTO WA_BBP_BAPIESSRC.


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

*Conversion exit ALPHA, internal->external for field PO_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBP_BAPIESSRC-PO_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBP_BAPIESSRC-PO_NUMBER.
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_BBP_BAPIESSRC_STR, 
SHEET_NO TYPE STRING,
EXT_NUMBER TYPE STRING,
PERSON_INT TYPE STRING,
PERSON_EXT TYPE STRING,
LOCATION TYPE STRING,
REF_DATE TYPE STRING,
BEGDATE TYPE STRING,
ENDDATE TYPE STRING,
PCKG_NO TYPE STRING,
SHORT_TEXT TYPE STRING,
PO_NUMBER TYPE STRING,
PO_ITEM TYPE STRING,
BLOCK_IND TYPE STRING,
SCORE_TIME TYPE STRING,
SCORE_QUAL TYPE STRING,
DOC_DATE TYPE STRING,
POST_DATE TYPE STRING,
REF_DOC_NO TYPE STRING,
ACCASSCAT TYPE STRING,
COMM_NO TYPE STRING,
USER_FIELD TYPE STRING,
ACCEPTANCE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BBP_BAPIESSRC_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_BBP_BAPIESSRC_STR-SHEET_NO sy-vline 
WA_BBP_BAPIESSRC_STR-EXT_NUMBER sy-vline 
WA_BBP_BAPIESSRC_STR-PERSON_INT sy-vline 
WA_BBP_BAPIESSRC_STR-PERSON_EXT sy-vline 
WA_BBP_BAPIESSRC_STR-LOCATION sy-vline 
WA_BBP_BAPIESSRC_STR-REF_DATE sy-vline 
WA_BBP_BAPIESSRC_STR-BEGDATE sy-vline 
WA_BBP_BAPIESSRC_STR-ENDDATE sy-vline 
WA_BBP_BAPIESSRC_STR-PCKG_NO sy-vline 
WA_BBP_BAPIESSRC_STR-SHORT_TEXT sy-vline 
WA_BBP_BAPIESSRC_STR-PO_NUMBER sy-vline 
WA_BBP_BAPIESSRC_STR-PO_ITEM sy-vline 
WA_BBP_BAPIESSRC_STR-BLOCK_IND sy-vline 
WA_BBP_BAPIESSRC_STR-SCORE_TIME sy-vline 
WA_BBP_BAPIESSRC_STR-SCORE_QUAL sy-vline 
WA_BBP_BAPIESSRC_STR-DOC_DATE sy-vline 
WA_BBP_BAPIESSRC_STR-POST_DATE sy-vline 
WA_BBP_BAPIESSRC_STR-REF_DOC_NO sy-vline 
WA_BBP_BAPIESSRC_STR-ACCASSCAT sy-vline 
WA_BBP_BAPIESSRC_STR-COMM_NO sy-vline 
WA_BBP_BAPIESSRC_STR-USER_FIELD sy-vline 
WA_BBP_BAPIESSRC_STR-ACCEPTANCE sy-vline      INTO ld_text SEPARATED BY SPACE.

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