ABAP Select data from SAP table FIWTVE_S_BP_CERT_DTL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIWTVE_S_BP_CERT_DTL
*  INTO TABLE @DATA(IT_FIWTVE_S_BP_CERT_DTL2).
*--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_FIWTVE_S_BP_CERT_DTL INDEX 1 INTO DATA(WA_FIWTVE_S_BP_CERT_DTL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIWTVE_S_BP_CERT_DTL>-PARTNERNO = 1.
<FIWTVE_S_BP_CERT_DTL>-DOCUMENTDATE = 1.
<FIWTVE_S_BP_CERT_DTL>-INVDOCUMENTNUMBER = 1.
<FIWTVE_S_BP_CERT_DTL>-DOCUMENTTEXT = 1.
<FIWTVE_S_BP_CERT_DTL>-REFDOCNUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIWTVE_S_BP_CERT_DTL-TOTAMOUNTDOCCURR, sy-vline,
  WA_FIWTVE_S_BP_CERT_DTL-BASEAMOUNTDOCCURR, sy-vline,
  WA_FIWTVE_S_BP_CERT_DTL-WITHTAXRATE, sy-vline,
  WA_FIWTVE_S_BP_CERT_DTL-WT_TYPE_DESC, sy-vline,
  WA_FIWTVE_S_BP_CERT_DTL-TAXAMOUNTDOCCURR, sy-vline,
  WA_FIWTVE_S_BP_CERT_DTL-REDUCTIONS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIWTVE_S_BP_CERT_DTL 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_FIWTVE_S_BP_CERT_DTL 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_FIWTVE_S_BP_CERT_DTL INTO WA_FIWTVE_S_BP_CERT_DTL.


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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit AU132, internal->external for field ACCUMWHT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FIWTVE_S_BP_CERT_DTL-ACCUMWHT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIWTVE_S_BP_CERT_DTL-ACCUMWHT.
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_FIWTVE_S_BP_CERT_DTL_STR, 
PARTNERNO TYPE STRING,
DOCUMENTDATE TYPE STRING,
INVDOCUMENTNUMBER TYPE STRING,
DOCUMENTTEXT TYPE STRING,
REFDOCNUMBER TYPE STRING,
TOTAMOUNTDOCCURR TYPE STRING,
BASEAMOUNTDOCCURR TYPE STRING,
WITHTAXRATE TYPE STRING,
WT_TYPE_DESC TYPE STRING,
TAXAMOUNTDOCCURR TYPE STRING,
REDUCTIONS TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTNUMBER TYPE STRING,
OPERATIONNUMBER TYPE STRING,
CENTRALNUMBER TYPE STRING,
DEBITNOTENUMBER TYPE STRING,
CREDITNOTENUMBER TYPE STRING,
OPERATIONCLASS TYPE STRING,
INVNUMBERAFFECTED TYPE STRING,
TOTALPURVAT TYPE STRING,
PURWITHOUTTAX TYPE STRING,
TAXABLEBASE TYPE STRING,
VAT TYPE STRING,
WITHHELDVAT TYPE STRING,
LTX TYPE STRING,
ACCUMBASE TYPE STRING,
ACCUMWHT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIWTVE_S_BP_CERT_DTL_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_FIWTVE_S_BP_CERT_DTL_STR-PARTNERNO sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-DOCUMENTDATE sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-INVDOCUMENTNUMBER sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-DOCUMENTTEXT sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-REFDOCNUMBER sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-TOTAMOUNTDOCCURR sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-BASEAMOUNTDOCCURR sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-WITHTAXRATE sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-WT_TYPE_DESC sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-TAXAMOUNTDOCCURR sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-REDUCTIONS sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-POSTINGDATE sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-DOCUMENTNUMBER sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-OPERATIONNUMBER sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-CENTRALNUMBER sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-DEBITNOTENUMBER sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-CREDITNOTENUMBER sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-OPERATIONCLASS sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-INVNUMBERAFFECTED sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-TOTALPURVAT sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-PURWITHOUTTAX sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-TAXABLEBASE sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-VAT sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-WITHHELDVAT sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-LTX sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-ACCUMBASE sy-vline 
WA_FIWTVE_S_BP_CERT_DTL_STR-ACCUMWHT sy-vline      INTO ld_text SEPARATED BY SPACE.

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