ABAP Select data from SAP table CNFM_S_PSOLST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CNFM_S_PSOLST 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_S_PSOLST. 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_S_PSOLST 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_S_PSOLST TYPE STANDARD TABLE OF CNFM_S_PSOLST,
      WA_CNFM_S_PSOLST TYPE CNFM_S_PSOLST,
      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_S_PSOLST> TYPE CNFM_S_PSOLST.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNFM_S_PSOLST
*  INTO TABLE @DATA(IT_CNFM_S_PSOLST2).
*--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_S_PSOLST INDEX 1 INTO DATA(WA_CNFM_S_PSOLST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNFM_S_PSOLST>-REQ_NUMBER = 1.
<CNFM_S_PSOLST>-ACCOUNT_DOC_NR = 1.
<CNFM_S_PSOLST>-COMPANY_CODE = 1.
<CNFM_S_PSOLST>-FISCAL_YEAR = 1.
<CNFM_S_PSOLST>-DOC_CATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNFM_S_PSOLST-ACCOUNT_NR, sy-vline,
  WA_CNFM_S_PSOLST-COMMIT_ITEM, sy-vline,
  WA_CNFM_S_PSOLST-POST_DATE, sy-vline,
  WA_CNFM_S_PSOLST-FUND_CENTER, sy-vline,
  WA_CNFM_S_PSOLST-AMOUNT, sy-vline,
  WA_CNFM_S_PSOLST-LOCAL_CURR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNFM_S_PSOLST 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_S_PSOLST 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_S_PSOLST INTO WA_CNFM_S_PSOLST.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field GL_ACC_NR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNFM_S_PSOLST-GL_ACC_NR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNFM_S_PSOLST-GL_ACC_NR.
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_S_PSOLST_STR, 
REQ_NUMBER TYPE STRING,
ACCOUNT_DOC_NR TYPE STRING,
COMPANY_CODE TYPE STRING,
FISCAL_YEAR TYPE STRING,
DOC_CATEGORY TYPE STRING,
ACCOUNT_NR TYPE STRING,
COMMIT_ITEM TYPE STRING,
POST_DATE TYPE STRING,
FUND_CENTER TYPE STRING,
AMOUNT TYPE STRING,
LOCAL_CURR TYPE STRING,
INVOICED_AMT TYPE STRING,
LAST_CHG_ON TYPE STRING,
LAST_CHG_AT TYPE STRING,
FUND TYPE STRING,
GL_ACC_NR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNFM_S_PSOLST_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_S_PSOLST_STR-REQ_NUMBER sy-vline 
WA_CNFM_S_PSOLST_STR-ACCOUNT_DOC_NR sy-vline 
WA_CNFM_S_PSOLST_STR-COMPANY_CODE sy-vline 
WA_CNFM_S_PSOLST_STR-FISCAL_YEAR sy-vline 
WA_CNFM_S_PSOLST_STR-DOC_CATEGORY sy-vline 
WA_CNFM_S_PSOLST_STR-ACCOUNT_NR sy-vline 
WA_CNFM_S_PSOLST_STR-COMMIT_ITEM sy-vline 
WA_CNFM_S_PSOLST_STR-POST_DATE sy-vline 
WA_CNFM_S_PSOLST_STR-FUND_CENTER sy-vline 
WA_CNFM_S_PSOLST_STR-AMOUNT sy-vline 
WA_CNFM_S_PSOLST_STR-LOCAL_CURR sy-vline 
WA_CNFM_S_PSOLST_STR-INVOICED_AMT sy-vline 
WA_CNFM_S_PSOLST_STR-LAST_CHG_ON sy-vline 
WA_CNFM_S_PSOLST_STR-LAST_CHG_AT sy-vline 
WA_CNFM_S_PSOLST_STR-FUND sy-vline 
WA_CNFM_S_PSOLST_STR-GL_ACC_NR sy-vline      INTO ld_text SEPARATED BY SPACE.

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