ABAP Select data from SAP table UVBLB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UVBLB
*  INTO TABLE @DATA(IT_UVBLB2).
*--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_UVBLB INDEX 1 INTO DATA(WA_UVBLB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UVBLB>-MANDT = 1.
<UVBLB>-VBELN = 1.
<UVBLB>-POSNR = 1.
<UVBLB>-ABRLI = 1.
<UVBLB>-ABART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UVBLB-DOCNUM, sy-vline,
  WA_UVBLB-ABEFZ, sy-vline,
  WA_UVBLB-ABRAB, sy-vline,
  WA_UVBLB-ABRBI, sy-vline,
  WA_UVBLB-LABNK, sy-vline,
  WA_UVBLB-ABRDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UVBLB 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_UVBLB 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_UVBLB INTO WA_UVBLB.


*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 VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_UVBLB-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UVBLB-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LFNKD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_UVBLB-LFNKD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UVBLB-LFNKD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJKUN
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_UVBLB-GJKUN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UVBLB-GJKUN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field VJKUN
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_UVBLB-VJKUN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UVBLB-VJKUN.
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_UVBLB_STR, 
MANDT TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
ABRLI TYPE STRING,
ABART TYPE STRING,
DOCNUM TYPE STRING,
ABEFZ TYPE STRING,
ABRAB TYPE STRING,
ABRBI TYPE STRING,
LABNK TYPE STRING,
ABRDT TYPE STRING,
TERSL TYPE STRING,
LFDKD TYPE STRING,
LFNKD TYPE STRING,
ABFDA TYPE STRING,
ABFDE TYPE STRING,
ABMDA TYPE STRING,
ABMDE TYPE STRING,
ABLLI TYPE STRING,
HIFFZ TYPE STRING,
HIFFZLI TYPE STRING,
HIMFZ TYPE STRING,
HIMFZLI TYPE STRING,
ERDAT TYPE STRING,
ERZEI TYPE STRING,
ERNAM TYPE STRING,
HILFZ TYPE STRING,
HILFZLI TYPE STRING,
ABHOR TYPE STRING,
GJKUN TYPE STRING,
VJKUN TYPE STRING,
AKMFZ TYPE STRING,
AKFFZ TYPE STRING,
AKLFZ TYPE STRING,
KRITB TYPE STRING,
LABKY TYPE STRING,
VBRST TYPE STRING,
EDLLS TYPE STRING,
EDLDT TYPE STRING,
LFMKD TYPE STRING,
UMVKZ TYPE STRING,
UMVKN TYPE STRING,
USR01 TYPE STRING,
USR02 TYPE STRING,
USR03 TYPE STRING,
USR04 TYPE STRING,
USR05 TYPE STRING,
CYEFZ TYPE STRING,
CYDAT TYPE STRING,
MFLAUF TYPE STRING,
MFEIN TYPE STRING,
FFLAUF TYPE STRING,
FFEIN TYPE STRING,
ABRDT_ORG TYPE STRING,
LFMAIS TYPE STRING,
MAIDT TYPE STRING,
AEDAT TYPE STRING,
HANDLE TYPE STRING,
SESSION_CREATION_DATE TYPE STRING,
SESSION_CREATION_TIME TYPE STRING,
_DATAAGING TYPE STRING,
DUMMY_SCHEDGAGRMT_INCL_EEW_PS TYPE STRING,
EDI_SOAP_MSGID TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UVBLB_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_UVBLB_STR-MANDT sy-vline 
WA_UVBLB_STR-VBELN sy-vline 
WA_UVBLB_STR-POSNR sy-vline 
WA_UVBLB_STR-ABRLI sy-vline 
WA_UVBLB_STR-ABART sy-vline 
WA_UVBLB_STR-DOCNUM sy-vline 
WA_UVBLB_STR-ABEFZ sy-vline 
WA_UVBLB_STR-ABRAB sy-vline 
WA_UVBLB_STR-ABRBI sy-vline 
WA_UVBLB_STR-LABNK sy-vline 
WA_UVBLB_STR-ABRDT sy-vline 
WA_UVBLB_STR-TERSL sy-vline 
WA_UVBLB_STR-LFDKD sy-vline 
WA_UVBLB_STR-LFNKD sy-vline 
WA_UVBLB_STR-ABFDA sy-vline 
WA_UVBLB_STR-ABFDE sy-vline 
WA_UVBLB_STR-ABMDA sy-vline 
WA_UVBLB_STR-ABMDE sy-vline 
WA_UVBLB_STR-ABLLI sy-vline 
WA_UVBLB_STR-HIFFZ sy-vline 
WA_UVBLB_STR-HIFFZLI sy-vline 
WA_UVBLB_STR-HIMFZ sy-vline 
WA_UVBLB_STR-HIMFZLI sy-vline 
WA_UVBLB_STR-ERDAT sy-vline 
WA_UVBLB_STR-ERZEI sy-vline 
WA_UVBLB_STR-ERNAM sy-vline 
WA_UVBLB_STR-HILFZ sy-vline 
WA_UVBLB_STR-HILFZLI sy-vline 
WA_UVBLB_STR-ABHOR sy-vline 
WA_UVBLB_STR-GJKUN sy-vline 
WA_UVBLB_STR-VJKUN sy-vline 
WA_UVBLB_STR-AKMFZ sy-vline 
WA_UVBLB_STR-AKFFZ sy-vline 
WA_UVBLB_STR-AKLFZ sy-vline 
WA_UVBLB_STR-KRITB sy-vline 
WA_UVBLB_STR-LABKY sy-vline 
WA_UVBLB_STR-VBRST sy-vline 
WA_UVBLB_STR-EDLLS sy-vline 
WA_UVBLB_STR-EDLDT sy-vline 
WA_UVBLB_STR-LFMKD sy-vline 
WA_UVBLB_STR-UMVKZ sy-vline 
WA_UVBLB_STR-UMVKN sy-vline 
WA_UVBLB_STR-USR01 sy-vline 
WA_UVBLB_STR-USR02 sy-vline 
WA_UVBLB_STR-USR03 sy-vline 
WA_UVBLB_STR-USR04 sy-vline 
WA_UVBLB_STR-USR05 sy-vline 
WA_UVBLB_STR-CYEFZ sy-vline 
WA_UVBLB_STR-CYDAT sy-vline 
WA_UVBLB_STR-MFLAUF sy-vline 
WA_UVBLB_STR-MFEIN sy-vline 
WA_UVBLB_STR-FFLAUF sy-vline 
WA_UVBLB_STR-FFEIN sy-vline 
WA_UVBLB_STR-ABRDT_ORG sy-vline 
WA_UVBLB_STR-LFMAIS sy-vline 
WA_UVBLB_STR-MAIDT sy-vline 
WA_UVBLB_STR-AEDAT sy-vline 
WA_UVBLB_STR-HANDLE sy-vline 
WA_UVBLB_STR-SESSION_CREATION_DATE sy-vline 
WA_UVBLB_STR-SESSION_CREATION_TIME sy-vline 
WA_UVBLB_STR-_DATAAGING sy-vline 
WA_UVBLB_STR-DUMMY_SCHEDGAGRMT_INCL_EEW_PS sy-vline 
WA_UVBLB_STR-EDI_SOAP_MSGID sy-vline 
WA_UVBLB_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.