ABAP Select data from SAP table CSSPPURCHGROUP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSSPPURCHGROUP
*  INTO TABLE @DATA(IT_CSSPPURCHGROUP2).
*--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_CSSPPURCHGROUP INDEX 1 INTO DATA(WA_CSSPPURCHGROUP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSSPPURCHGROUP>-MANDT = 1.
<CSSPPURCHGROUP>-PURCHASINGGROUP = 1.
<CSSPPURCHGROUP>-MATERIAL = 1.
<CSSPPURCHGROUP>-MATERIALGROUP = 1.
<CSSPPURCHGROUP>-PLANT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSSPPURCHGROUP-PROCUREMENTHUBSOURCESYSTEM, sy-vline,
  WA_CSSPPURCHGROUP-PURCHASINGGROUPNAME, sy-vline,
  WA_CSSPPURCHGROUP-PURCHASINGGROUPPHONENUMBER, sy-vline,
  WA_CSSPPURCHGROUP-FAXNUMBER, sy-vline,
  WA_CSSPPURCHGROUP-PHONENUMBER, sy-vline,
  WA_CSSPPURCHGROUP-PHONENUMBEREXTENSION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSSPPURCHGROUP 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_CSSPPURCHGROUP 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_CSSPPURCHGROUP INTO WA_CSSPPURCHGROUP.


*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 MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CSSPPURCHGROUP-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSSPPURCHGROUP-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field EMAILADDRESS
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_CSSPPURCHGROUP-EMAILADDRESS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSSPPURCHGROUP-EMAILADDRESS.
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_CSSPPURCHGROUP_STR, 
MANDT TYPE STRING,
PURCHASINGGROUP TYPE STRING,
MATERIAL TYPE STRING,
MATERIALGROUP TYPE STRING,
PLANT TYPE STRING,
PROCUREMENTHUBSOURCESYSTEM TYPE STRING,
PURCHASINGGROUPNAME TYPE STRING,
PURCHASINGGROUPPHONENUMBER TYPE STRING,
FAXNUMBER TYPE STRING,
PHONENUMBER TYPE STRING,
PHONENUMBEREXTENSION TYPE STRING,
EMAILADDRESS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSSPPURCHGROUP_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_CSSPPURCHGROUP_STR-MANDT sy-vline 
WA_CSSPPURCHGROUP_STR-PURCHASINGGROUP sy-vline 
WA_CSSPPURCHGROUP_STR-MATERIAL sy-vline 
WA_CSSPPURCHGROUP_STR-MATERIALGROUP sy-vline 
WA_CSSPPURCHGROUP_STR-PLANT sy-vline 
WA_CSSPPURCHGROUP_STR-PROCUREMENTHUBSOURCESYSTEM sy-vline 
WA_CSSPPURCHGROUP_STR-PURCHASINGGROUPNAME sy-vline 
WA_CSSPPURCHGROUP_STR-PURCHASINGGROUPPHONENUMBER sy-vline 
WA_CSSPPURCHGROUP_STR-FAXNUMBER sy-vline 
WA_CSSPPURCHGROUP_STR-PHONENUMBER sy-vline 
WA_CSSPPURCHGROUP_STR-PHONENUMBEREXTENSION sy-vline 
WA_CSSPPURCHGROUP_STR-EMAILADDRESS sy-vline      INTO ld_text SEPARATED BY SPACE.

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