ABAP Select data from SAP table CE9A000_P_IV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CE9A000_P_IV 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 CE9A000_P_IV. 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 CE9A000_P_IV 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_CE9A000_P_IV TYPE STANDARD TABLE OF CE9A000_P_IV,
      WA_CE9A000_P_IV TYPE CE9A000_P_IV,
      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: <CE9A000_P_IV> TYPE CE9A000_P_IV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CE9A000_P_IV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CE9A000_P_IV
  INTO TABLE IT_CE9A000_P_IV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CE9A000_P_IV
*  INTO TABLE @DATA(IT_CE9A000_P_IV2).
*--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_CE9A000_P_IV INDEX 1 INTO DATA(WA_CE9A000_P_IV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CE9A000_P_IV ASSIGNING <CE9A000_P_IV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CE9A000_P_IV>-MANDT = 1.
<CE9A000_P_IV>-BELNR = 1.
<CE9A000_P_IV>-POSNR = 1.
<CE9A000_P_IV>-SUBNR = 1.
<CE9A000_P_IV>-CURTP = 1.

ENDLOOP.

LOOP AT IT_CE9A000_P_IV INTO WA_CE9A000_P_IV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CE9A000_P_IV-CURRENCY, sy-vline,
  WA_CE9A000_P_IV-VV001, sy-vline,
  WA_CE9A000_P_IV-VV002, sy-vline,
  WA_CE9A000_P_IV-VV003, sy-vline,
  WA_CE9A000_P_IV-VV004, sy-vline,
  WA_CE9A000_P_IV-VV005, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CE9A000_P_IV 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_CE9A000_P_IV 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_CE9A000_P_IV INTO WA_CE9A000_P_IV.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CE9A000_P_IV-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CE9A000_P_IV-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field VV001
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_CE9A000_P_IV-VV001
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CE9A000_P_IV-VV001.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field VV002
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_CE9A000_P_IV-VV002
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CE9A000_P_IV-VV002.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field VV003
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_CE9A000_P_IV-VV003
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CE9A000_P_IV-VV003.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field VV004
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_CE9A000_P_IV-VV004
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CE9A000_P_IV-VV004.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field VV005
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_CE9A000_P_IV-VV005
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CE9A000_P_IV-VV005.
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_CE9A000_P_IV_STR, 
MANDT TYPE STRING,
BELNR TYPE STRING,
POSNR TYPE STRING,
SUBNR TYPE STRING,
CURTP TYPE STRING,
CURRENCY TYPE STRING,
VV001 TYPE STRING,
VV002 TYPE STRING,
VV003 TYPE STRING,
VV004 TYPE STRING,
VV005 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CE9A000_P_IV_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_CE9A000_P_IV_STR-MANDT sy-vline 
WA_CE9A000_P_IV_STR-BELNR sy-vline 
WA_CE9A000_P_IV_STR-POSNR sy-vline 
WA_CE9A000_P_IV_STR-SUBNR sy-vline 
WA_CE9A000_P_IV_STR-CURTP sy-vline 
WA_CE9A000_P_IV_STR-CURRENCY sy-vline 
WA_CE9A000_P_IV_STR-VV001 sy-vline 
WA_CE9A000_P_IV_STR-VV002 sy-vline 
WA_CE9A000_P_IV_STR-VV003 sy-vline 
WA_CE9A000_P_IV_STR-VV004 sy-vline 
WA_CE9A000_P_IV_STR-VV005 sy-vline      INTO ld_text SEPARATED BY SPACE.

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