ABAP Select data from SAP table UBC_S_INVH_DB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UBC_S_INVH_DB
*  INTO TABLE @DATA(IT_UBC_S_INVH_DB2).
*--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_UBC_S_INVH_DB INDEX 1 INTO DATA(WA_UBC_S_INVH_DB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UBC_S_INVH_DB>-ORG = 1.
<UBC_S_INVH_DB>-DOCNUM = 1.
<UBC_S_INVH_DB>-BIL = 1.
<UBC_S_INVH_DB>-INVNO = 1.
<UBC_S_INVH_DB>-INVDT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UBC_S_INVH_DB-RA, sy-vline,
  WA_UBC_S_INVH_DB-WAERS, sy-vline,
  WA_UBC_S_INVH_DB-WRBTR, sy-vline,
  WA_UBC_S_INVH_DB-WMWST, sy-vline,
  WA_UBC_S_INVH_DB-REFNO_IDOC, sy-vline,
  WA_UBC_S_INVH_DB-REFNO_TRX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UBC_S_INVH_DB 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_UBC_S_INVH_DB 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_UBC_S_INVH_DB INTO WA_UBC_S_INVH_DB.


*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 AU132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_UBC_S_INVH_DB-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UBC_S_INVH_DB-WRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field WMWST
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_UBC_S_INVH_DB-WMWST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UBC_S_INVH_DB-WMWST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field EMAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_UBC_S_INVH_DB-EMAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UBC_S_INVH_DB-EMAIL.
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_UBC_S_INVH_DB_STR, 
ORG TYPE STRING,
DOCNUM TYPE STRING,
BIL TYPE STRING,
INVNO TYPE STRING,
INVDT TYPE STRING,
RA TYPE STRING,
WAERS TYPE STRING,
WRBTR TYPE STRING,
WMWST TYPE STRING,
REFNO_IDOC TYPE STRING,
REFNO_TRX TYPE STRING,
PMTTEXT1 TYPE STRING,
PMTTEXT2 TYPE STRING,
PMTTEXT3 TYPE STRING,
FUSER TYPE STRING,
EMAIL TYPE STRING,
XERROR_RA TYPE STRING,
XERROR_RPA TYPE STRING,
XERROR_FUSER TYPE STRING,
XERROR_INP TYPE STRING,
CRDATE TYPE STRING,
CRTIME TYPE STRING,
CRUSER TYPE STRING,
STATE TYPE STRING,
WF_DET TYPE STRING,
STRAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UBC_S_INVH_DB_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_UBC_S_INVH_DB_STR-ORG sy-vline 
WA_UBC_S_INVH_DB_STR-DOCNUM sy-vline 
WA_UBC_S_INVH_DB_STR-BIL sy-vline 
WA_UBC_S_INVH_DB_STR-INVNO sy-vline 
WA_UBC_S_INVH_DB_STR-INVDT sy-vline 
WA_UBC_S_INVH_DB_STR-RA sy-vline 
WA_UBC_S_INVH_DB_STR-WAERS sy-vline 
WA_UBC_S_INVH_DB_STR-WRBTR sy-vline 
WA_UBC_S_INVH_DB_STR-WMWST sy-vline 
WA_UBC_S_INVH_DB_STR-REFNO_IDOC sy-vline 
WA_UBC_S_INVH_DB_STR-REFNO_TRX sy-vline 
WA_UBC_S_INVH_DB_STR-PMTTEXT1 sy-vline 
WA_UBC_S_INVH_DB_STR-PMTTEXT2 sy-vline 
WA_UBC_S_INVH_DB_STR-PMTTEXT3 sy-vline 
WA_UBC_S_INVH_DB_STR-FUSER sy-vline 
WA_UBC_S_INVH_DB_STR-EMAIL sy-vline 
WA_UBC_S_INVH_DB_STR-XERROR_RA sy-vline 
WA_UBC_S_INVH_DB_STR-XERROR_RPA sy-vline 
WA_UBC_S_INVH_DB_STR-XERROR_FUSER sy-vline 
WA_UBC_S_INVH_DB_STR-XERROR_INP sy-vline 
WA_UBC_S_INVH_DB_STR-CRDATE sy-vline 
WA_UBC_S_INVH_DB_STR-CRTIME sy-vline 
WA_UBC_S_INVH_DB_STR-CRUSER sy-vline 
WA_UBC_S_INVH_DB_STR-STATE sy-vline 
WA_UBC_S_INVH_DB_STR-WF_DET sy-vline 
WA_UBC_S_INVH_DB_STR-STRAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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