ABAP Select data from SAP table P06_DSN_SPLIT_HEADER into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P06_DSN_SPLIT_HEADER 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 P06_DSN_SPLIT_HEADER. 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 P06_DSN_SPLIT_HEADER 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_P06_DSN_SPLIT_HEADER TYPE STANDARD TABLE OF P06_DSN_SPLIT_HEADER,
      WA_P06_DSN_SPLIT_HEADER TYPE P06_DSN_SPLIT_HEADER,
      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: <P06_DSN_SPLIT_HEADER> TYPE P06_DSN_SPLIT_HEADER.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P06_DSN_SPLIT_HEADER.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P06_DSN_SPLIT_HEADER
  INTO TABLE IT_P06_DSN_SPLIT_HEADER.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P06_DSN_SPLIT_HEADER
*  INTO TABLE @DATA(IT_P06_DSN_SPLIT_HEADER2).
*--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_P06_DSN_SPLIT_HEADER INDEX 1 INTO DATA(WA_P06_DSN_SPLIT_HEADER2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P06_DSN_SPLIT_HEADER ASSIGNING <P06_DSN_SPLIT_HEADER>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P06_DSN_SPLIT_HEADER>-SECTN = 1.
<P06_DSN_SPLIT_HEADER>-GENFR = 1.
<P06_DSN_SPLIT_HEADER>-SEKEY = 1.
<P06_DSN_SPLIT_HEADER>-SESRC = 1.
<P06_DSN_SPLIT_HEADER>-SOKEY = 1.

ENDLOOP.

LOOP AT IT_P06_DSN_SPLIT_HEADER INTO WA_P06_DSN_SPLIT_HEADER.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P06_DSN_SPLIT_HEADER-ADKEY, sy-vline,
  WA_P06_DSN_SPLIT_HEADER-RDNAT, sy-vline,
  WA_P06_DSN_SPLIT_HEADER-RDTYP, sy-vline,
  WA_P06_DSN_SPLIT_HEADER-BEGDA, sy-vline,
  WA_P06_DSN_SPLIT_HEADER-ENDDA, sy-vline,
  WA_P06_DSN_SPLIT_HEADER-HILEV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P06_DSN_SPLIT_HEADER 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_P06_DSN_SPLIT_HEADER 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_P06_DSN_SPLIT_HEADER INTO WA_P06_DSN_SPLIT_HEADER.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_P06_DSN_SPLIT_HEADER_STR, 
SECTN TYPE STRING,
GENFR TYPE STRING,
SEKEY TYPE STRING,
SESRC TYPE STRING,
SOKEY TYPE STRING,
ADKEY TYPE STRING,
RDNAT TYPE STRING,
RDTYP TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
HILEV TYPE STRING,
DATA TYPE STRING,
SECTION_REF TYPE STRING,
SECTION_UUID TYPE STRING,
ADD_DB_DATA TYPE STRING,
ADD_JSON_DATA TYPE STRING,
TEMSE TYPE STRING,
TAB_TEMSE TYPE STRING,
SIRET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P06_DSN_SPLIT_HEADER_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_P06_DSN_SPLIT_HEADER_STR-SECTN sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-GENFR sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-SEKEY sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-SESRC sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-SOKEY sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-ADKEY sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-RDNAT sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-RDTYP sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-BEGDA sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-ENDDA sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-HILEV sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-DATA sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-SECTION_REF sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-SECTION_UUID sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-ADD_DB_DATA sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-ADD_JSON_DATA sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-TEMSE sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-TAB_TEMSE sy-vline 
WA_P06_DSN_SPLIT_HEADER_STR-SIRET sy-vline      INTO ld_text SEPARATED BY SPACE.

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