ABAP Select data from SAP table CNFM_PSO02SI into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CNFM_PSO02SI 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 CNFM_PSO02SI. 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 CNFM_PSO02SI 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_CNFM_PSO02SI TYPE STANDARD TABLE OF CNFM_PSO02SI,
      WA_CNFM_PSO02SI TYPE CNFM_PSO02SI,
      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: <CNFM_PSO02SI> TYPE CNFM_PSO02SI.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CNFM_PSO02SI.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CNFM_PSO02SI
  INTO TABLE IT_CNFM_PSO02SI.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNFM_PSO02SI
*  INTO TABLE @DATA(IT_CNFM_PSO02SI2).
*--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_CNFM_PSO02SI INDEX 1 INTO DATA(WA_CNFM_PSO02SI2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CNFM_PSO02SI ASSIGNING <CNFM_PSO02SI>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNFM_PSO02SI>-ITABKEY = 1.
<CNFM_PSO02SI>-LOTKZ = 1.
<CNFM_PSO02SI>-BELNR = 1.
<CNFM_PSO02SI>-BUKRS = 1.
<CNFM_PSO02SI>-AUSBK = 1.

ENDLOOP.

LOOP AT IT_CNFM_PSO02SI INTO WA_CNFM_PSO02SI.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNFM_PSO02SI-SAKNR, sy-vline,
  WA_CNFM_PSO02SI-FIPEX, sy-vline,
  WA_CNFM_PSO02SI-FISTL, sy-vline,
  WA_CNFM_PSO02SI-GEBER, sy-vline,
  WA_CNFM_PSO02SI-KOSTL, sy-vline,
  WA_CNFM_PSO02SI-POSID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNFM_PSO02SI 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_CNFM_PSO02SI 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_CNFM_PSO02SI INTO WA_CNFM_PSO02SI.


*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 LOTKZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNFM_PSO02SI-LOTKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNFM_PSO02SI-LOTKZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNFM_PSO02SI-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNFM_PSO02SI-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNFM_PSO02SI-SAKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNFM_PSO02SI-SAKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_CNFM_PSO02SI-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNFM_PSO02SI-FIPEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNFM_PSO02SI-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNFM_PSO02SI-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CNFM_PSO02SI-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNFM_PSO02SI-PS_PSP_PNR.
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_CNFM_PSO02SI_STR, 
ITABKEY TYPE STRING,
LOTKZ TYPE STRING,
BELNR TYPE STRING,
BUKRS TYPE STRING,
AUSBK TYPE STRING,
SAKNR TYPE STRING,
FIPEX TYPE STRING,
FISTL TYPE STRING,
GEBER TYPE STRING,
KOSTL TYPE STRING,
POSID TYPE STRING,
PS_PSP_PNR TYPE STRING,
MEASURE TYPE STRING,
FKBER TYPE STRING,
DMBTR TYPE STRING,
WRBTR TYPE STRING,
BZKEY TYPE STRING,
BSCHL TYPE STRING,
SHKZG TYPE STRING,
KOART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNFM_PSO02SI_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_CNFM_PSO02SI_STR-ITABKEY sy-vline 
WA_CNFM_PSO02SI_STR-LOTKZ sy-vline 
WA_CNFM_PSO02SI_STR-BELNR sy-vline 
WA_CNFM_PSO02SI_STR-BUKRS sy-vline 
WA_CNFM_PSO02SI_STR-AUSBK sy-vline 
WA_CNFM_PSO02SI_STR-SAKNR sy-vline 
WA_CNFM_PSO02SI_STR-FIPEX sy-vline 
WA_CNFM_PSO02SI_STR-FISTL sy-vline 
WA_CNFM_PSO02SI_STR-GEBER sy-vline 
WA_CNFM_PSO02SI_STR-KOSTL sy-vline 
WA_CNFM_PSO02SI_STR-POSID sy-vline 
WA_CNFM_PSO02SI_STR-PS_PSP_PNR sy-vline 
WA_CNFM_PSO02SI_STR-MEASURE sy-vline 
WA_CNFM_PSO02SI_STR-FKBER sy-vline 
WA_CNFM_PSO02SI_STR-DMBTR sy-vline 
WA_CNFM_PSO02SI_STR-WRBTR sy-vline 
WA_CNFM_PSO02SI_STR-BZKEY sy-vline 
WA_CNFM_PSO02SI_STR-BSCHL sy-vline 
WA_CNFM_PSO02SI_STR-SHKZG sy-vline 
WA_CNFM_PSO02SI_STR-KOART sy-vline      INTO ld_text SEPARATED BY SPACE.

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