ABAP Select data from SAP table PRUEXTINVTOTAMT1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PRUEXTINVTOTAMT1 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 PRUEXTINVTOTAMT1. 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 PRUEXTINVTOTAMT1 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_PRUEXTINVTOTAMT1 TYPE STANDARD TABLE OF PRUEXTINVTOTAMT1,
      WA_PRUEXTINVTOTAMT1 TYPE PRUEXTINVTOTAMT1,
      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: <PRUEXTINVTOTAMT1> TYPE PRUEXTINVTOTAMT1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PRUEXTINVTOTAMT1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PRUEXTINVTOTAMT1
  INTO TABLE IT_PRUEXTINVTOTAMT1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRUEXTINVTOTAMT1
*  INTO TABLE @DATA(IT_PRUEXTINVTOTAMT12).
*--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_PRUEXTINVTOTAMT1 INDEX 1 INTO DATA(WA_PRUEXTINVTOTAMT12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PRUEXTINVTOTAMT1 ASSIGNING <PRUEXTINVTOTAMT1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRUEXTINVTOTAMT1>-MANDT = 1.
<PRUEXTINVTOTAMT1>-COMPANYCODE = 1.
<PRUEXTINVTOTAMT1>-ACCOUNTINGDOCUMENT = 1.
<PRUEXTINVTOTAMT1>-FISCALYEAR = 1.
<PRUEXTINVTOTAMT1>-EXTERNALACCOUNTINGDOCUMENT = 1.

ENDLOOP.

LOOP AT IT_PRUEXTINVTOTAMT1 INTO WA_PRUEXTINVTOTAMT1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRUEXTINVTOTAMT1-EXTERNALACCTGDOCUMENTDATE, sy-vline,
  WA_PRUEXTINVTOTAMT1-TAXAMOUNTINCOCODECRCY, sy-vline,
  WA_PRUEXTINVTOTAMT1-TAXBASEAMOUNTINCOCODECRCY, sy-vline,
  WA_PRUEXTINVTOTAMT1-TAXAMOUNT, sy-vline,
  WA_PRUEXTINVTOTAMT1-TAXBASEAMOUNTINTRANSCRCY, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_PRUEXTINVTOTAMT1 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_PRUEXTINVTOTAMT1 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_PRUEXTINVTOTAMT1 INTO WA_PRUEXTINVTOTAMT1.


*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 ACCOUNTINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRUEXTINVTOTAMT1-ACCOUNTINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUEXTINVTOTAMT1-ACCOUNTINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PRUEXTINVTOTAMT1-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUEXTINVTOTAMT1-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field TAXAMOUNTINCOCODECRCY
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_PRUEXTINVTOTAMT1-TAXAMOUNTINCOCODECRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUEXTINVTOTAMT1-TAXAMOUNTINCOCODECRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TAXBASEAMOUNTINCOCODECRCY
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PRUEXTINVTOTAMT1-TAXBASEAMOUNTINCOCODECRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUEXTINVTOTAMT1-TAXBASEAMOUNTINCOCODECRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field TAXAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_PRUEXTINVTOTAMT1-TAXAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUEXTINVTOTAMT1-TAXAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TAXBASEAMOUNTINTRANSCRCY
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PRUEXTINVTOTAMT1-TAXBASEAMOUNTINTRANSCRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUEXTINVTOTAMT1-TAXBASEAMOUNTINTRANSCRCY.
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_PRUEXTINVTOTAMT1_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
EXTERNALACCOUNTINGDOCUMENT TYPE STRING,
EXTERNALACCTGDOCUMENTDATE TYPE STRING,
TAXAMOUNTINCOCODECRCY TYPE STRING,
TAXBASEAMOUNTINCOCODECRCY TYPE STRING,
TAXAMOUNT TYPE STRING,
TAXBASEAMOUNTINTRANSCRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRUEXTINVTOTAMT1_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_PRUEXTINVTOTAMT1_STR-MANDT sy-vline 
WA_PRUEXTINVTOTAMT1_STR-COMPANYCODE sy-vline 
WA_PRUEXTINVTOTAMT1_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_PRUEXTINVTOTAMT1_STR-FISCALYEAR sy-vline 
WA_PRUEXTINVTOTAMT1_STR-EXTERNALACCOUNTINGDOCUMENT sy-vline 
WA_PRUEXTINVTOTAMT1_STR-EXTERNALACCTGDOCUMENTDATE sy-vline 
WA_PRUEXTINVTOTAMT1_STR-TAXAMOUNTINCOCODECRCY sy-vline 
WA_PRUEXTINVTOTAMT1_STR-TAXBASEAMOUNTINCOCODECRCY sy-vline 
WA_PRUEXTINVTOTAMT1_STR-TAXAMOUNT sy-vline 
WA_PRUEXTINVTOTAMT1_STR-TAXBASEAMOUNTINTRANSCRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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