ABAP Select data from SAP table CDPNODE 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 CDPNODE 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 CDPNODE. 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 CDPNODE 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_CDPNODE TYPE STANDARD TABLE OF CDPNODE,
      WA_CDPNODE TYPE CDPNODE,
      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: <CDPNODE> TYPE CDPNODE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CDPNODE
*  INTO TABLE @DATA(IT_CDPNODE2).
*--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_CDPNODE INDEX 1 INTO DATA(WA_CDPNODE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CDPNODE ASSIGNING <CDPNODE>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<CDPNODE>-MANDT = 1.
<CDPNODE>-PNINT = 1.
<CDPNODE>-PNCOUNT = 1.
<CDPNODE>-PNAME = 1.
<CDPNODE>-CLINT = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CDPNODE-TYPE, sy-vline,
WA_CDPNODE-TXTCOUNT, sy-vline,
WA_CDPNODE-CREADAT, sy-vline,
WA_CDPNODE-CREABY, sy-vline,
WA_CDPNODE-CHNGDAT, sy-vline,
WA_CDPNODE-CHNGBY, sy-vline.
ENDLOOP. *Add any further fields from structure WA_CDPNODE 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_CDPNODE 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_CDPNODE INTO WA_CDPNODE. *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 ALPHA, internal->external for field LOGSYS CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_CDPNODE-LOGSYS IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_CDPNODE-LOGSYS.
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_CDPNODE_STR,
MANDT TYPE STRING,
PNINT TYPE STRING,
PNCOUNT TYPE STRING,
PNAME TYPE STRING,
CLINT TYPE STRING,
TYPE TYPE STRING,
TXTCOUNT TYPE STRING,
CREADAT TYPE STRING,
CREABY TYPE STRING,
CHNGDAT TYPE STRING,
CHNGBY TYPE STRING,
LOGSYS TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR. DATA: WA_CDPNODE_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_CDPNODE_STR-MANDT sy-vline
WA_CDPNODE_STR-PNINT sy-vline
WA_CDPNODE_STR-PNCOUNT sy-vline
WA_CDPNODE_STR-PNAME sy-vline
WA_CDPNODE_STR-CLINT sy-vline
WA_CDPNODE_STR-TYPE sy-vline
WA_CDPNODE_STR-TXTCOUNT sy-vline
WA_CDPNODE_STR-CREADAT sy-vline
WA_CDPNODE_STR-CREABY sy-vline
WA_CDPNODE_STR-CHNGDAT sy-vline
WA_CDPNODE_STR-CHNGBY sy-vline
WA_CDPNODE_STR-LOGSYS sy-vline
WA_CDPNODE_STR-KZ sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.