ABAP Select data from SAP table /CPD/PLANDATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /CPD/PLANDATA 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 /CPD/PLANDATA. 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 /CPD/PLANDATA 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_/CPD/PLANDATA TYPE STANDARD TABLE OF /CPD/PLANDATA,
      WA_/CPD/PLANDATA TYPE /CPD/PLANDATA,
      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: </CPD/PLANDATA> TYPE /CPD/PLANDATA.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /CPD/PLANDATA
  INTO TABLE IT_/CPD/PLANDATA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /CPD/PLANDATA
*  INTO TABLE @DATA(IT_/CPD/PLANDATA2).
*--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_/CPD/PLANDATA INDEX 1 INTO DATA(WA_/CPD/PLANDATA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/CPD/PLANDATA ASSIGNING </CPD/PLANDATA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</CPD/PLANDATA>-MANDT = 1.
</CPD/PLANDATA>-PLAN_LINE_GUID = 1.
</CPD/PLANDATA>-FP_KEY = 1.
</CPD/PLANDATA>-WP_KEY = 1.
</CPD/PLANDATA>-VERSION = 1.

ENDLOOP.

LOOP AT IT_/CPD/PLANDATA INTO WA_/CPD/PLANDATA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/CPD/PLANDATA-RES_TYPE, sy-vline,
  WA_/CPD/PLANDATA-PERIOD, sy-vline,
  WA_/CPD/PLANDATA-FC_YEAR, sy-vline,
  WA_/CPD/PLANDATA-RESOURCE_ID, sy-vline,
  WA_/CPD/PLANDATA-EMPLOYEE, sy-vline,
  WA_/CPD/PLANDATA-CONFIRMED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/CPD/PLANDATA 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_/CPD/PLANDATA 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_/CPD/PLANDATA INTO WA_/CPD/PLANDATA.


*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 GJAHR, internal->external for field FC_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/CPD/PLANDATA-FC_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CPD/PLANDATA-FC_YEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/CPD/PLANDATA-UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CPD/PLANDATA-UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CREATED_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/CPD/PLANDATA-CREATED_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CPD/PLANDATA-CREATED_ON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CHANGED_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/CPD/PLANDATA-CHANGED_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CPD/PLANDATA-CHANGED_ON.
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_/CPD/PLANDATA_STR, 
MANDT TYPE STRING,
PLAN_LINE_GUID TYPE STRING,
FP_KEY TYPE STRING,
WP_KEY TYPE STRING,
VERSION TYPE STRING,
RES_TYPE TYPE STRING,
PERIOD TYPE STRING,
FC_YEAR TYPE STRING,
RESOURCE_ID TYPE STRING,
EMPLOYEE TYPE STRING,
CONFIRMED TYPE STRING,
WORKITEM_ID TYPE STRING,
DELVRY_SERV_ORG TYPE STRING,
DEMAND_KEY TYPE STRING,
CURRENCY TYPE STRING,
COST TYPE STRING,
UOM TYPE STRING,
EFFORT TYPE STRING,
REVENUE TYPE STRING,
EST_COST_TO_COMP TYPE STRING,
EST_REV_TO_COMP TYPE STRING,
EST_EFFORT_TO_COMP TYPE STRING,
COST_DEVIATION TYPE STRING,
EFFORT_DEVIATION TYPE STRING,
REVENUE_DEVIATION TYPE STRING,
LINE_TYPE TYPE STRING,
SOURCE_OF_SUPPLY TYPE STRING,
BILLGCTRLCAT TYPE STRING,
MP_ID TYPE STRING,
WP_ID TYPE STRING,
IS_UNIT_BASED TYPE STRING,
PARENT_UNIT_DEMAND_KEY TYPE STRING,
IS_DRAFT TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_ON TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_ON TYPE STRING,
RESOURCE_DEMAND_ID TYPE STRING,
RESOURCE_SUPPLY_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/CPD/PLANDATA_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_/CPD/PLANDATA_STR-MANDT sy-vline 
WA_/CPD/PLANDATA_STR-PLAN_LINE_GUID sy-vline 
WA_/CPD/PLANDATA_STR-FP_KEY sy-vline 
WA_/CPD/PLANDATA_STR-WP_KEY sy-vline 
WA_/CPD/PLANDATA_STR-VERSION sy-vline 
WA_/CPD/PLANDATA_STR-RES_TYPE sy-vline 
WA_/CPD/PLANDATA_STR-PERIOD sy-vline 
WA_/CPD/PLANDATA_STR-FC_YEAR sy-vline 
WA_/CPD/PLANDATA_STR-RESOURCE_ID sy-vline 
WA_/CPD/PLANDATA_STR-EMPLOYEE sy-vline 
WA_/CPD/PLANDATA_STR-CONFIRMED sy-vline 
WA_/CPD/PLANDATA_STR-WORKITEM_ID sy-vline 
WA_/CPD/PLANDATA_STR-DELVRY_SERV_ORG sy-vline 
WA_/CPD/PLANDATA_STR-DEMAND_KEY sy-vline 
WA_/CPD/PLANDATA_STR-CURRENCY sy-vline 
WA_/CPD/PLANDATA_STR-COST sy-vline 
WA_/CPD/PLANDATA_STR-UOM sy-vline 
WA_/CPD/PLANDATA_STR-EFFORT sy-vline 
WA_/CPD/PLANDATA_STR-REVENUE sy-vline 
WA_/CPD/PLANDATA_STR-EST_COST_TO_COMP sy-vline 
WA_/CPD/PLANDATA_STR-EST_REV_TO_COMP sy-vline 
WA_/CPD/PLANDATA_STR-EST_EFFORT_TO_COMP sy-vline 
WA_/CPD/PLANDATA_STR-COST_DEVIATION sy-vline 
WA_/CPD/PLANDATA_STR-EFFORT_DEVIATION sy-vline 
WA_/CPD/PLANDATA_STR-REVENUE_DEVIATION sy-vline 
WA_/CPD/PLANDATA_STR-LINE_TYPE sy-vline 
WA_/CPD/PLANDATA_STR-SOURCE_OF_SUPPLY sy-vline 
WA_/CPD/PLANDATA_STR-BILLGCTRLCAT sy-vline 
WA_/CPD/PLANDATA_STR-MP_ID sy-vline 
WA_/CPD/PLANDATA_STR-WP_ID sy-vline 
WA_/CPD/PLANDATA_STR-IS_UNIT_BASED sy-vline 
WA_/CPD/PLANDATA_STR-PARENT_UNIT_DEMAND_KEY sy-vline 
WA_/CPD/PLANDATA_STR-IS_DRAFT sy-vline 
WA_/CPD/PLANDATA_STR-CREATED_BY sy-vline 
WA_/CPD/PLANDATA_STR-CREATED_ON sy-vline 
WA_/CPD/PLANDATA_STR-CHANGED_BY sy-vline 
WA_/CPD/PLANDATA_STR-CHANGED_ON sy-vline 
WA_/CPD/PLANDATA_STR-RESOURCE_DEMAND_ID sy-vline 
WA_/CPD/PLANDATA_STR-RESOURCE_SUPPLY_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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