ABAP Select data from SAP table BCSS_DOC_ATTRIBUTES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BCSS_DOC_ATTRIBUTES
*  INTO TABLE @DATA(IT_BCSS_DOC_ATTRIBUTES2).
*--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_BCSS_DOC_ATTRIBUTES INDEX 1 INTO DATA(WA_BCSS_DOC_ATTRIBUTES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BCSS_DOC_ATTRIBUTES>-DOC_TP = 1.
<BCSS_DOC_ATTRIBUTES>-DOC_TP_DESCR = 1.
<BCSS_DOC_ATTRIBUTES>-DOC_DESCR = 1.
<BCSS_DOC_ATTRIBUTES>-DOC_LA = 1.
<BCSS_DOC_ATTRIBUTES>-DOC_SNS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BCSS_DOC_ATTRIBUTES-DOC_MOD, sy-vline,
  WA_BCSS_DOC_ATTRIBUTES-DOC_EXP_DAT, sy-vline,
  WA_BCSS_DOC_ATTRIBUTES-DOC_PRI, sy-vline,
  WA_BCSS_DOC_ATTRIBUTES-DOC_LEN, sy-vline,
  WA_BCSS_DOC_ATTRIBUTES-OWNER, sy-vline,
  WA_BCSS_DOC_ATTRIBUTES-SENDER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BCSS_DOC_ATTRIBUTES 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_BCSS_DOC_ATTRIBUTES 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_BCSS_DOC_ATTRIBUTES INTO WA_BCSS_DOC_ATTRIBUTES.


*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 DOC_LA
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_BCSS_DOC_ATTRIBUTES-DOC_LA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BCSS_DOC_ATTRIBUTES-DOC_LA.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit SXIDN, internal->external for field CHANGER
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_BCSS_DOC_ATTRIBUTES-CHANGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BCSS_DOC_ATTRIBUTES-CHANGER.
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_BCSS_DOC_ATTRIBUTES_STR, 
DOC_TP TYPE STRING,
DOC_TP_DESCR TYPE STRING,
DOC_DESCR TYPE STRING,
DOC_LA TYPE STRING,
DOC_SNS TYPE STRING,
DOC_MOD TYPE STRING,
DOC_EXP_DAT TYPE STRING,
DOC_PRI TYPE STRING,
DOC_LEN TYPE STRING,
OWNER TYPE STRING,
SENDER TYPE STRING,
CREATOR TYPE STRING,
CHANGER TYPE STRING,
CREA_DAT TYPE STRING,
CREA_TIME TYPE STRING,
CHNG_DAT TYPE STRING,
CHNG_TIME TYPE STRING,
SEND_DAT TYPE STRING,
SEND_TIME TYPE STRING,
DOC_LA_DESCR TYPE STRING,
DOC_FILENAME TYPE STRING,
DOC_CODEPAGE TYPE STRING,
CP_DESCR TYPE STRING,
DOC_SUBJLNG TYPE STRING,
DOC_FORMAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BCSS_DOC_ATTRIBUTES_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_BCSS_DOC_ATTRIBUTES_STR-DOC_TP sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-DOC_TP_DESCR sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-DOC_DESCR sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-DOC_LA sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-DOC_SNS sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-DOC_MOD sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-DOC_EXP_DAT sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-DOC_PRI sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-DOC_LEN sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-OWNER sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-SENDER sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-CREATOR sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-CHANGER sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-CREA_DAT sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-CREA_TIME sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-CHNG_DAT sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-CHNG_TIME sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-SEND_DAT sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-SEND_TIME sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-DOC_LA_DESCR sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-DOC_FILENAME sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-DOC_CODEPAGE sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-CP_DESCR sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-DOC_SUBJLNG sy-vline 
WA_BCSS_DOC_ATTRIBUTES_STR-DOC_FORMAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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