ABAP Select data from SAP table PRUFASSETIT1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PRUFASSETIT1 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 PRUFASSETIT1. 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 PRUFASSETIT1 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_PRUFASSETIT1 TYPE STANDARD TABLE OF PRUFASSETIT1,
      WA_PRUFASSETIT1 TYPE PRUFASSETIT1,
      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: <PRUFASSETIT1> TYPE PRUFASSETIT1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PRUFASSETIT1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PRUFASSETIT1
  INTO TABLE IT_PRUFASSETIT1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRUFASSETIT1
*  INTO TABLE @DATA(IT_PRUFASSETIT12).
*--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_PRUFASSETIT1 INDEX 1 INTO DATA(WA_PRUFASSETIT12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PRUFASSETIT1 ASSIGNING <PRUFASSETIT1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRUFASSETIT1>-MANDT = 1.
<PRUFASSETIT1>-BUKRS = 1.
<PRUFASSETIT1>-AFABE = 1.
<PRUFASSETIT1>-ANLN1 = 1.
<PRUFASSETIT1>-ANLN2 = 1.

ENDLOOP.

LOOP AT IT_PRUFASSETIT1 INTO WA_PRUFASSETIT1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRUFASSETIT1-GJAHR, sy-vline,
  WA_PRUFASSETIT1-LNRAN, sy-vline,
  WA_PRUFASSETIT1-LEDGER, sy-vline,
  WA_PRUFASSETIT1-BELNR_FI, sy-vline,
  WA_PRUFASSETIT1-BUDAT, sy-vline,
  WA_PRUFASSETIT1-AWSYS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRUFASSETIT1 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_PRUFASSETIT1 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_PRUFASSETIT1 INTO WA_PRUFASSETIT1.


*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 ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRUFASSETIT1-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUFASSETIT1-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRUFASSETIT1-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUFASSETIT1-ANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PRUFASSETIT1-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUFASSETIT1-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LEDGER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRUFASSETIT1-LEDGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUFASSETIT1-LEDGER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_FI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRUFASSETIT1-BELNR_FI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUFASSETIT1-BELNR_FI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AWSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRUFASSETIT1-AWSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUFASSETIT1-AWSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRUFASSETIT1-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUFASSETIT1-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR_REV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRUFASSETIT1-BELNR_REV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUFASSETIT1-BELNR_REV.
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_PRUFASSETIT1_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
AFABE TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
GJAHR TYPE STRING,
LNRAN TYPE STRING,
LEDGER TYPE STRING,
BELNR_FI TYPE STRING,
BUDAT TYPE STRING,
AWSYS TYPE STRING,
AWTYP TYPE STRING,
AWORG TYPE STRING,
ISREVERSAL TYPE STRING,
ISREVERSED TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
BELNR_REV TYPE STRING,
BZDAT TYPE STRING,
BWASL TYPE STRING,
ANBTR TYPE STRING,
AUFWVL TYPE STRING,
INVZVL TYPE STRING,
NAFAVL TYPE STRING,
SAFAVL TYPE STRING,
AAFAVL TYPE STRING,
MAFAVL TYPE STRING,
AUFNVL TYPE STRING,
ERLBT TYPE STRING,
VERKO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRUFASSETIT1_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_PRUFASSETIT1_STR-MANDT sy-vline 
WA_PRUFASSETIT1_STR-BUKRS sy-vline 
WA_PRUFASSETIT1_STR-AFABE sy-vline 
WA_PRUFASSETIT1_STR-ANLN1 sy-vline 
WA_PRUFASSETIT1_STR-ANLN2 sy-vline 
WA_PRUFASSETIT1_STR-GJAHR sy-vline 
WA_PRUFASSETIT1_STR-LNRAN sy-vline 
WA_PRUFASSETIT1_STR-LEDGER sy-vline 
WA_PRUFASSETIT1_STR-BELNR_FI sy-vline 
WA_PRUFASSETIT1_STR-BUDAT sy-vline 
WA_PRUFASSETIT1_STR-AWSYS sy-vline 
WA_PRUFASSETIT1_STR-AWTYP sy-vline 
WA_PRUFASSETIT1_STR-AWORG sy-vline 
WA_PRUFASSETIT1_STR-ISREVERSAL sy-vline 
WA_PRUFASSETIT1_STR-ISREVERSED sy-vline 
WA_PRUFASSETIT1_STR-BELNR sy-vline 
WA_PRUFASSETIT1_STR-BUZEI sy-vline 
WA_PRUFASSETIT1_STR-BELNR_REV sy-vline 
WA_PRUFASSETIT1_STR-BZDAT sy-vline 
WA_PRUFASSETIT1_STR-BWASL sy-vline 
WA_PRUFASSETIT1_STR-ANBTR sy-vline 
WA_PRUFASSETIT1_STR-AUFWVL sy-vline 
WA_PRUFASSETIT1_STR-INVZVL sy-vline 
WA_PRUFASSETIT1_STR-NAFAVL sy-vline 
WA_PRUFASSETIT1_STR-SAFAVL sy-vline 
WA_PRUFASSETIT1_STR-AAFAVL sy-vline 
WA_PRUFASSETIT1_STR-MAFAVL sy-vline 
WA_PRUFASSETIT1_STR-AUFNVL sy-vline 
WA_PRUFASSETIT1_STR-ERLBT sy-vline 
WA_PRUFASSETIT1_STR-VERKO sy-vline      INTO ld_text SEPARATED BY SPACE.

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