ABAP Select data from SAP table PREVSEDQTRPOSA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PREVSEDQTRPOSA
*  INTO TABLE @DATA(IT_PREVSEDQTRPOSA2).
*--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_PREVSEDQTRPOSA INDEX 1 INTO DATA(WA_PREVSEDQTRPOSA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PREVSEDQTRPOSA>-MANDT = 1.
<PREVSEDQTRPOSA>-COMPANYCODE = 1.
<PREVSEDQTRPOSA>-ACCOUNTINGPRINCIPLE = 1.
<PREVSEDQTRPOSA>-REVENUEACCOUNTINGCONTRACT = 1.
<PREVSEDQTRPOSA>-PERFORMANCEOBLIGATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PREVSEDQTRPOSA-REVNACCTGPOSTINGCATEGORY, sy-vline,
  WA_PREVSEDQTRPOSA-FISCALYEAR, sy-vline,
  WA_PREVSEDQTRPOSA-FISCALQUARTER, sy-vline,
  WA_PREVSEDQTRPOSA-SALESDOCUMENTCURRENCY, sy-vline,
  WA_PREVSEDQTRPOSA-COMPANYCODECURRENCY, sy-vline,
  WA_PREVSEDQTRPOSA-ADDITIONALCURRENCY1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PREVSEDQTRPOSA 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_PREVSEDQTRPOSA 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_PREVSEDQTRPOSA INTO WA_PREVSEDQTRPOSA.


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

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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PREVSEDQTRPOSA-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PREVSEDQTRPOSA-FISCALYEAR.
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_PREVSEDQTRPOSA_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGPRINCIPLE TYPE STRING,
REVENUEACCOUNTINGCONTRACT TYPE STRING,
PERFORMANCEOBLIGATION TYPE STRING,
REVNACCTGPOSTINGCATEGORY TYPE STRING,
FISCALYEAR TYPE STRING,
FISCALQUARTER TYPE STRING,
SALESDOCUMENTCURRENCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
ADDITIONALCURRENCY1 TYPE STRING,
ADDITIONALCURRENCY2 TYPE STRING,
REVNACCTGPOSTGAMTINSLSDOCCRCY TYPE STRING,
REVNACCTGPOSTGAMTINCOCODECRCY TYPE STRING,
REVNACCTGPOSTGAMTINADDLCRCY1 TYPE STRING,
REVNACCTGPOSTGAMTINADDLCRCY2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PREVSEDQTRPOSA_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_PREVSEDQTRPOSA_STR-MANDT sy-vline 
WA_PREVSEDQTRPOSA_STR-COMPANYCODE sy-vline 
WA_PREVSEDQTRPOSA_STR-ACCOUNTINGPRINCIPLE sy-vline 
WA_PREVSEDQTRPOSA_STR-REVENUEACCOUNTINGCONTRACT sy-vline 
WA_PREVSEDQTRPOSA_STR-PERFORMANCEOBLIGATION sy-vline 
WA_PREVSEDQTRPOSA_STR-REVNACCTGPOSTINGCATEGORY sy-vline 
WA_PREVSEDQTRPOSA_STR-FISCALYEAR sy-vline 
WA_PREVSEDQTRPOSA_STR-FISCALQUARTER sy-vline 
WA_PREVSEDQTRPOSA_STR-SALESDOCUMENTCURRENCY sy-vline 
WA_PREVSEDQTRPOSA_STR-COMPANYCODECURRENCY sy-vline 
WA_PREVSEDQTRPOSA_STR-ADDITIONALCURRENCY1 sy-vline 
WA_PREVSEDQTRPOSA_STR-ADDITIONALCURRENCY2 sy-vline 
WA_PREVSEDQTRPOSA_STR-REVNACCTGPOSTGAMTINSLSDOCCRCY sy-vline 
WA_PREVSEDQTRPOSA_STR-REVNACCTGPOSTGAMTINCOCODECRCY sy-vline 
WA_PREVSEDQTRPOSA_STR-REVNACCTGPOSTGAMTINADDLCRCY1 sy-vline 
WA_PREVSEDQTRPOSA_STR-REVNACCTGPOSTGAMTINADDLCRCY2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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