ABAP Select data from SAP table UPB_SY_CLINFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UPB_SY_CLINFO
*  INTO TABLE @DATA(IT_UPB_SY_CLINFO2).
*--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_UPB_SY_CLINFO INDEX 1 INTO DATA(WA_UPB_SY_CLINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UPB_SY_CLINFO>-MANDT = 1.
<UPB_SY_CLINFO>-AREA = 1.
<UPB_SY_CLINFO>-PLEVEL = 1.
<UPB_SY_CLINFO>-IOBJTP = 1.
<UPB_SY_CLINFO>-NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UPB_SY_CLINFO-TYPE, sy-vline,
  WA_UPB_SY_CLINFO-DATATP, sy-vline,
  WA_UPB_SY_CLINFO-LENG, sy-vline,
  WA_UPB_SY_CLINFO-DECIMALS, sy-vline,
  WA_UPB_SY_CLINFO-LANG, sy-vline,
  WA_UPB_SY_CLINFO-DESCR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UPB_SY_CLINFO 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_UPB_SY_CLINFO 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_UPB_SY_CLINFO INTO WA_UPB_SY_CLINFO.


*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 DATATP
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_UPB_SY_CLINFO-DATATP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPB_SY_CLINFO-DATATP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANG
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_UPB_SY_CLINFO-LANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPB_SY_CLINFO-LANG.
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_UPB_SY_CLINFO_STR, 
MANDT TYPE STRING,
AREA TYPE STRING,
PLEVEL TYPE STRING,
IOBJTP TYPE STRING,
NAME TYPE STRING,
TYPE TYPE STRING,
DATATP TYPE STRING,
LENG TYPE STRING,
DECIMALS TYPE STRING,
LANG TYPE STRING,
DESCR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UPB_SY_CLINFO_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_UPB_SY_CLINFO_STR-MANDT sy-vline 
WA_UPB_SY_CLINFO_STR-AREA sy-vline 
WA_UPB_SY_CLINFO_STR-PLEVEL sy-vline 
WA_UPB_SY_CLINFO_STR-IOBJTP sy-vline 
WA_UPB_SY_CLINFO_STR-NAME sy-vline 
WA_UPB_SY_CLINFO_STR-TYPE sy-vline 
WA_UPB_SY_CLINFO_STR-DATATP sy-vline 
WA_UPB_SY_CLINFO_STR-LENG sy-vline 
WA_UPB_SY_CLINFO_STR-DECIMALS sy-vline 
WA_UPB_SY_CLINFO_STR-LANG sy-vline 
WA_UPB_SY_CLINFO_STR-DESCR sy-vline      INTO ld_text SEPARATED BY SPACE.

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