ABAP Select data from SAP table DD27PR into internal table

Get Example source ABAP code based on a different SAP table
  

Below is a number of ABAP code snippets to demonstrate how to select data from SAP DD27PR 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 DD27PR. 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 DD27PR 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_DD27PR TYPE STANDARD TABLE OF DD27PR,
      WA_DD27PR TYPE DD27PR,
      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: <DD27PR> TYPE DD27PR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DD27PR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DD27PR
  INTO TABLE IT_DD27PR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DD27PR
*  INTO TABLE @DATA(IT_DD27PR2).
*--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_DD27PR INDEX 1 INTO DATA(WA_DD27PR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DD27PR ASSIGNING <DD27PR>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<DD27PR>-VIEWNAME = 1.
<DD27PR>-POSITION = 1.
<DD27PR>-VIEWFIELD = 1.
<DD27PR>-TABNAME = 1.
<DD27PR>-FIELDNAME = 1.
ENDLOOP.

LOOP AT IT_DD27PR INTO WA_DD27PR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DD27PR-KEYFLAG, sy-vline,
WA_DD27PR-DOMNAME, sy-vline,
WA_DD27PR-DATATYPE, sy-vline,
WA_DD27PR-LENG, sy-vline,
WA_DD27PR-DECIMALS, sy-vline,
WA_DD27PR-ROLLNAME, sy-vline.
ENDLOOP. *Add any further fields from structure WA_DD27PR 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_DD27PR 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_DD27PR INTO WA_DD27PR. *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 DTYPE, internal->external for field DATATYPE CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT' EXPORTING input = WA_DD27PR-DATATYPE IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_DD27PR-DATATYPE.
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_DD27PR_STR,
VIEWNAME TYPE STRING,
POSITION TYPE STRING,
VIEWFIELD TYPE STRING,
TABNAME TYPE STRING,
FIELDNAME TYPE STRING,
KEYFLAG TYPE STRING,
DOMNAME TYPE STRING,
DATATYPE TYPE STRING,
LENG TYPE STRING,
DECIMALS TYPE STRING,
ROLLNAME TYPE STRING,
DBVIEWFIELD TYPE STRING,
CHANGED TYPE STRING,
DDTEXT TYPE STRING,
TYPEDB TYPE STRING,
LENGTHDB TYPE STRING,
DECIMALSDB TYPE STRING,END OF T_EKKO_STR. DATA: WA_DD27PR_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_DD27PR_STR-VIEWNAME sy-vline
WA_DD27PR_STR-POSITION sy-vline
WA_DD27PR_STR-VIEWFIELD sy-vline
WA_DD27PR_STR-TABNAME sy-vline
WA_DD27PR_STR-FIELDNAME sy-vline
WA_DD27PR_STR-KEYFLAG sy-vline
WA_DD27PR_STR-DOMNAME sy-vline
WA_DD27PR_STR-DATATYPE sy-vline
WA_DD27PR_STR-LENG sy-vline
WA_DD27PR_STR-DECIMALS sy-vline
WA_DD27PR_STR-ROLLNAME sy-vline
WA_DD27PR_STR-DBVIEWFIELD sy-vline
WA_DD27PR_STR-CHANGED sy-vline
WA_DD27PR_STR-DDTEXT sy-vline
WA_DD27PR_STR-TYPEDB sy-vline
WA_DD27PR_STR-LENGTHDB sy-vline
WA_DD27PR_STR-DECIMALSDB sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.