ABAP Select data from SAP table /PRA/ND_DISP_VARIANCE_RPSM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PRA/ND_DISP_VARIANCE_RPSM 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 /PRA/ND_DISP_VARIANCE_RPSM. 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 /PRA/ND_DISP_VARIANCE_RPSM 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_/PRA/ND_DISP_VARIANCE_RPSM TYPE STANDARD TABLE OF /PRA/ND_DISP_VARIANCE_RPSM,
      WA_/PRA/ND_DISP_VARIANCE_RPSM TYPE /PRA/ND_DISP_VARIANCE_RPSM,
      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: </PRA/ND_DISP_VARIANCE_RPSM> TYPE /PRA/ND_DISP_VARIANCE_RPSM.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PRA/ND_DISP_VARIANCE_RPSM
  INTO TABLE IT_/PRA/ND_DISP_VARIANCE_RPSM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PRA/ND_DISP_VARIANCE_RPSM
*  INTO TABLE @DATA(IT_/PRA/ND_DISP_VARIANCE_RPSM2).
*--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_/PRA/ND_DISP_VARIANCE_RPSM INDEX 1 INTO DATA(WA_/PRA/ND_DISP_VARIANCE_RPSM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PRA/ND_DISP_VARIANCE_RPSM ASSIGNING </PRA/ND_DISP_VARIANCE_RPSM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PRA/ND_DISP_VARIANCE_RPSM>-MANDT = 1.
</PRA/ND_DISP_VARIANCE_RPSM>-RUN_ID = 1.
</PRA/ND_DISP_VARIANCE_RPSM>-PROD_PURC_IND = 1.
</PRA/ND_DISP_VARIANCE_RPSM>-PROD_YEAR_MONTH = 1.
</PRA/ND_DISP_VARIANCE_RPSM>-FEDERAL_ID = 1.

ENDLOOP.

LOOP AT IT_/PRA/ND_DISP_VARIANCE_RPSM INTO WA_/PRA/ND_DISP_VARIANCE_RPSM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PRA/ND_DISP_VARIANCE_RPSM-O_OR_A, sy-vline,
  WA_/PRA/ND_DISP_VARIANCE_RPSM-PR_TAX_PAID, sy-vline,
  WA_/PRA/ND_DISP_VARIANCE_RPSM-PR_PENALTY, sy-vline,
  WA_/PRA/ND_DISP_VARIANCE_RPSM-PR_INTEREST, sy-vline,
  WA_/PRA/ND_DISP_VARIANCE_RPSM-PR_TOTAL_DUE, sy-vline,
  WA_/PRA/ND_DISP_VARIANCE_RPSM-EX_TAX_PAID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PRA/ND_DISP_VARIANCE_RPSM 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_/PRA/ND_DISP_VARIANCE_RPSM 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_/PRA/ND_DISP_VARIANCE_RPSM INTO WA_/PRA/ND_DISP_VARIANCE_RPSM.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/PRA/ND_DISP_VARIANCE_RPSM_STR, 
MANDT TYPE STRING,
RUN_ID TYPE STRING,
PROD_PURC_IND TYPE STRING,
PROD_YEAR_MONTH TYPE STRING,
FEDERAL_ID TYPE STRING,
O_OR_A TYPE STRING,
PR_TAX_PAID TYPE STRING,
PR_PENALTY TYPE STRING,
PR_INTEREST TYPE STRING,
PR_TOTAL_DUE TYPE STRING,
EX_TAX_PAID TYPE STRING,
EX_PENALTY TYPE STRING,
EX_INTEREST TYPE STRING,
EX_TOTAL_DUE TYPE STRING,
TOTAL_DUE TYPE STRING,
TAX_CREDITS TYPE STRING,
TOTAL_REMITTED TYPE STRING,
APPLY_CREDIT_BAL TYPE STRING,
ELECTRONIC_PAYMT TYPE STRING,
OIU_CRUSER TYPE STRING,
OIU_TIMESTAMP TYPE STRING,
2ND_EX_TAX_AMT_DUE TYPE STRING,
VAR_EX_TAX_AMT_DUE TYPE STRING,
2ND_PR_TAX_AMT_DUE TYPE STRING,
VAR_PR_TAX_AMT_DUE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PRA/ND_DISP_VARIANCE_RPSM_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_/PRA/ND_DISP_VARIANCE_RPSM_STR-MANDT sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-RUN_ID sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-PROD_PURC_IND sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-PROD_YEAR_MONTH sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-FEDERAL_ID sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-O_OR_A sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-PR_TAX_PAID sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-PR_PENALTY sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-PR_INTEREST sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-PR_TOTAL_DUE sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-EX_TAX_PAID sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-EX_PENALTY sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-EX_INTEREST sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-EX_TOTAL_DUE sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-TOTAL_DUE sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-TAX_CREDITS sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-TOTAL_REMITTED sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-APPLY_CREDIT_BAL sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-ELECTRONIC_PAYMT sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-OIU_CRUSER sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-OIU_TIMESTAMP sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-2ND_EX_TAX_AMT_DUE sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-VAR_EX_TAX_AMT_DUE sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-2ND_PR_TAX_AMT_DUE sy-vline 
WA_/PRA/ND_DISP_VARIANCE_RPSM_STR-VAR_PR_TAX_AMT_DUE sy-vline      INTO ld_text SEPARATED BY SPACE.

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