ABAP Select data from SAP table VTI_ULWMA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VTI_ULWMA
*  INTO TABLE @DATA(IT_VTI_ULWMA2).
*--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_VTI_ULWMA INDEX 1 INTO DATA(WA_VTI_ULWMA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VTI_ULWMA>-MANDT = 1.
<VTI_ULWMA>-URANTYP = 1.
<VTI_ULWMA>-URFHA = 1.
<VTI_ULWMA>-USGSART = 1.
<VTI_ULWMA>-XUSGSART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VTI_ULWMA-USFHAART, sy-vline,
  WA_VTI_ULWMA-XUFATEXT, sy-vline,
  WA_VTI_ULWMA-URFHAZU, sy-vline,
  WA_VTI_ULWMA-USFGZUTYP, sy-vline,
  WA_VTI_ULWMA-XUTEXT, sy-vline,
  WA_VTI_ULWMA-USL1FHABA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VTI_ULWMA 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_VTI_ULWMA 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_VTI_ULWMA INTO WA_VTI_ULWMA.


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

*Conversion exit ALPHA, internal->external for field URGATT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VTI_ULWMA-URGATT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTI_ULWMA-URGATT.
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_VTI_ULWMA_STR, 
MANDT TYPE STRING,
URANTYP TYPE STRING,
URFHA TYPE STRING,
USGSART TYPE STRING,
XUSGSART TYPE STRING,
USFHAART TYPE STRING,
XUFATEXT TYPE STRING,
URFHAZU TYPE STRING,
USFGZUTYP TYPE STRING,
XUTEXT TYPE STRING,
USL1FHABA TYPE STRING,
USL2FHABA TYPE STRING,
USANLF TYPE STRING,
S1BEWART TYPE STRING,
URFHAZB1 TYPE STRING,
T1BEWART TYPE STRING,
URGATT TYPE STRING,
XUNDEL TYPE STRING,
UASTUECK TYPE STRING,
BPRICE TYPE STRING,
WPRICE TYPE STRING,
DZTERM TYPE STRING,
SINDEART TYPE STRING,
BINDEX TYPE STRING,
RINDWHR TYPE STRING,
VVBASIS TYPE STRING,
PWKURS TYPE STRING,
BNWHR TYPE STRING,
SNWHR TYPE STRING,
DLTERM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VTI_ULWMA_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_VTI_ULWMA_STR-MANDT sy-vline 
WA_VTI_ULWMA_STR-URANTYP sy-vline 
WA_VTI_ULWMA_STR-URFHA sy-vline 
WA_VTI_ULWMA_STR-USGSART sy-vline 
WA_VTI_ULWMA_STR-XUSGSART sy-vline 
WA_VTI_ULWMA_STR-USFHAART sy-vline 
WA_VTI_ULWMA_STR-XUFATEXT sy-vline 
WA_VTI_ULWMA_STR-URFHAZU sy-vline 
WA_VTI_ULWMA_STR-USFGZUTYP sy-vline 
WA_VTI_ULWMA_STR-XUTEXT sy-vline 
WA_VTI_ULWMA_STR-USL1FHABA sy-vline 
WA_VTI_ULWMA_STR-USL2FHABA sy-vline 
WA_VTI_ULWMA_STR-USANLF sy-vline 
WA_VTI_ULWMA_STR-S1BEWART sy-vline 
WA_VTI_ULWMA_STR-URFHAZB1 sy-vline 
WA_VTI_ULWMA_STR-T1BEWART sy-vline 
WA_VTI_ULWMA_STR-URGATT sy-vline 
WA_VTI_ULWMA_STR-XUNDEL sy-vline 
WA_VTI_ULWMA_STR-UASTUECK sy-vline 
WA_VTI_ULWMA_STR-BPRICE sy-vline 
WA_VTI_ULWMA_STR-WPRICE sy-vline 
WA_VTI_ULWMA_STR-DZTERM sy-vline 
WA_VTI_ULWMA_STR-SINDEART sy-vline 
WA_VTI_ULWMA_STR-BINDEX sy-vline 
WA_VTI_ULWMA_STR-RINDWHR sy-vline 
WA_VTI_ULWMA_STR-VVBASIS sy-vline 
WA_VTI_ULWMA_STR-PWKURS sy-vline 
WA_VTI_ULWMA_STR-BNWHR sy-vline 
WA_VTI_ULWMA_STR-SNWHR sy-vline 
WA_VTI_ULWMA_STR-DLTERM sy-vline      INTO ld_text SEPARATED BY SPACE.

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