ABAP Select data from SAP table DD27P 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 DD27P 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 DD27P. 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 DD27P 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_DD27P TYPE STANDARD TABLE OF DD27P,
      WA_DD27P TYPE DD27P,
      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: <DD27P> TYPE DD27P.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DD27P.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DD27P
  INTO TABLE IT_DD27P.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DD27P
*  INTO TABLE @DATA(IT_DD27P2).
*--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_DD27P INDEX 1 INTO DATA(WA_DD27P2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DD27P ASSIGNING <DD27P>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<DD27P>-VIEWNAME = 1.
<DD27P>-OBJPOS = 1.
<DD27P>-DDLANGUAGE = 1.
<DD27P>-VIEWFIELD = 1.
<DD27P>-TABNAME = 1.
ENDLOOP.

LOOP AT IT_DD27P INTO WA_DD27P.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DD27P-FIELDNAME, sy-vline,
WA_DD27P-KEYFLAG, sy-vline,
WA_DD27P-MCFIELDID, sy-vline,
WA_DD27P-EFORM, sy-vline,
WA_DD27P-ROLLNAME, sy-vline,
WA_DD27P-ROLLNAMEVI, sy-vline.
ENDLOOP. *Add any further fields from structure WA_DD27P 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_DD27P 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_DD27P INTO WA_DD27P. *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 DDLANGUAGE CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT' EXPORTING input = WA_DD27P-DDLANGUAGE IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_DD27P-DDLANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DTYPE, internal->external for field DATATYPE CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT' EXPORTING input = WA_DD27P-DATATYPE IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_DD27P-DATATYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DTYPE, internal->external for field EXVDATATYPE CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT' EXPORTING input = WA_DD27P-EXVDATATYPE IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_DD27P-EXVDATATYPE.
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_DD27P_STR,
VIEWNAME TYPE STRING,
OBJPOS TYPE STRING,
DDLANGUAGE TYPE STRING,
VIEWFIELD TYPE STRING,
TABNAME TYPE STRING,
FIELDNAME TYPE STRING,
KEYFLAG TYPE STRING,
MCFIELDID TYPE STRING,
EFORM TYPE STRING,
ROLLNAME TYPE STRING,
ROLLNAMEVI TYPE STRING,
ROLLCHANGE TYPE STRING,
ENQMODE TYPE STRING,
RDONLY TYPE STRING,
MEMORYID TYPE STRING,
DOMNAME TYPE STRING,
DATATYPE TYPE STRING,
FLENGTH TYPE STRING,
CHECKTABLE TYPE STRING,
SHLPORIGIN TYPE STRING,
SHLPNAME TYPE STRING,
SHLPFIELD TYPE STRING,
REFTABLE TYPE STRING,
REFFIELD TYPE STRING,
ENTITYTAB TYPE STRING,
INTTYPE TYPE STRING,
INTLEN TYPE STRING,
LOGFLAG TYPE STRING,
HEADLEN TYPE STRING,
SCRLEN1 TYPE STRING,
SCRLEN2 TYPE STRING,
SCRLEN3 TYPE STRING,
OUTPUTLEN TYPE STRING,
DECIMALS TYPE STRING,
LOWERCASE TYPE STRING,
SIGNFLAG TYPE STRING,
VALEXI TYPE STRING,
CONVEXIT TYPE STRING,
DDTEXT TYPE STRING,
REPTEXT TYPE STRING,
SCRTEXT_S TYPE STRING,
SCRTEXT_M TYPE STRING,
SCRTEXT_L TYPE STRING,
PROXYTYPE TYPE STRING,
LTRFLDDIS TYPE STRING,
BIDICTRLC TYPE STRING,
OUTPUTSTYLE TYPE STRING,
NOHISTORY TYPE STRING,
AMPMFORMAT TYPE STRING,
DBVIEWFIELD TYPE STRING,
EXVDATATYPE TYPE STRING,
EXVFLENGTH TYPE STRING,
EXVDECIMALS TYPE STRING,
SQL_PASSVALUE TYPE STRING,END OF T_EKKO_STR. DATA: WA_DD27P_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_DD27P_STR-VIEWNAME sy-vline
WA_DD27P_STR-OBJPOS sy-vline
WA_DD27P_STR-DDLANGUAGE sy-vline
WA_DD27P_STR-VIEWFIELD sy-vline
WA_DD27P_STR-TABNAME sy-vline
WA_DD27P_STR-FIELDNAME sy-vline
WA_DD27P_STR-KEYFLAG sy-vline
WA_DD27P_STR-MCFIELDID sy-vline
WA_DD27P_STR-EFORM sy-vline
WA_DD27P_STR-ROLLNAME sy-vline
WA_DD27P_STR-ROLLNAMEVI sy-vline
WA_DD27P_STR-ROLLCHANGE sy-vline
WA_DD27P_STR-ENQMODE sy-vline
WA_DD27P_STR-RDONLY sy-vline
WA_DD27P_STR-MEMORYID sy-vline
WA_DD27P_STR-DOMNAME sy-vline
WA_DD27P_STR-DATATYPE sy-vline
WA_DD27P_STR-FLENGTH sy-vline
WA_DD27P_STR-CHECKTABLE sy-vline
WA_DD27P_STR-SHLPORIGIN sy-vline
WA_DD27P_STR-SHLPNAME sy-vline
WA_DD27P_STR-SHLPFIELD sy-vline
WA_DD27P_STR-REFTABLE sy-vline
WA_DD27P_STR-REFFIELD sy-vline
WA_DD27P_STR-ENTITYTAB sy-vline
WA_DD27P_STR-INTTYPE sy-vline
WA_DD27P_STR-INTLEN sy-vline
WA_DD27P_STR-LOGFLAG sy-vline
WA_DD27P_STR-HEADLEN sy-vline
WA_DD27P_STR-SCRLEN1 sy-vline
WA_DD27P_STR-SCRLEN2 sy-vline
WA_DD27P_STR-SCRLEN3 sy-vline
WA_DD27P_STR-OUTPUTLEN sy-vline
WA_DD27P_STR-DECIMALS sy-vline
WA_DD27P_STR-LOWERCASE sy-vline
WA_DD27P_STR-SIGNFLAG sy-vline
WA_DD27P_STR-VALEXI sy-vline
WA_DD27P_STR-CONVEXIT sy-vline
WA_DD27P_STR-DDTEXT sy-vline
WA_DD27P_STR-REPTEXT sy-vline
WA_DD27P_STR-SCRTEXT_S sy-vline
WA_DD27P_STR-SCRTEXT_M sy-vline
WA_DD27P_STR-SCRTEXT_L sy-vline
WA_DD27P_STR-PROXYTYPE sy-vline
WA_DD27P_STR-LTRFLDDIS sy-vline
WA_DD27P_STR-BIDICTRLC sy-vline
WA_DD27P_STR-OUTPUTSTYLE sy-vline
WA_DD27P_STR-NOHISTORY sy-vline
WA_DD27P_STR-AMPMFORMAT sy-vline
WA_DD27P_STR-DBVIEWFIELD sy-vline
WA_DD27P_STR-EXVDATATYPE sy-vline
WA_DD27P_STR-EXVFLENGTH sy-vline
WA_DD27P_STR-EXVDECIMALS sy-vline
WA_DD27P_STR-SQL_PASSVALUE sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.