ABAP Select data from SAP table SPRXT_MESS_IN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SPRXT_MESS_IN
*  INTO TABLE @DATA(IT_SPRXT_MESS_IN2).
*--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_SPRXT_MESS_IN INDEX 1 INTO DATA(WA_SPRXT_MESS_IN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SPRXT_MESS_IN>-CONTROLLER = 1.
<SPRXT_MESS_IN>-ES = 1.
<SPRXT_MESS_IN>-ENS = 1.
<SPRXT_MESS_IN>-ET = 1.
<SPRXT_MESS_IN>-EB64 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SPRXT_MESS_IN-EHB, sy-vline,
  WA_SPRXT_MESS_IN-EIT, sy-vline,
  WA_SPRXT_MESS_IN-EPI, sy-vline,
  WA_SPRXT_MESS_IN-ENI, sy-vline,
  WA_SPRXT_MESS_IN-ENNI, sy-vline,
  WA_SPRXT_MESS_IN-ENPI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SPRXT_MESS_IN 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_SPRXT_MESS_IN 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_SPRXT_MESS_IN INTO WA_SPRXT_MESS_IN.


*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_SPRXT_MESS_IN_STR, 
CONTROLLER TYPE STRING,
ES TYPE STRING,
ENS TYPE STRING,
ET TYPE STRING,
EB64 TYPE STRING,
EHB TYPE STRING,
EIT TYPE STRING,
EPI TYPE STRING,
ENI TYPE STRING,
ENNI TYPE STRING,
ENPI TYPE STRING,
EL TYPE STRING,
EUL TYPE STRING,
EI TYPE STRING,
EUS TYPE STRING,
EB TYPE STRING,
EUB TYPE STRING,
ED TYPE STRING,
EF TYPE STRING,
EF1 TYPE STRING,
EF2 TYPE STRING,
EF3 TYPE STRING,
EF4 TYPE STRING,
EF5 TYPE STRING,
EF6 TYPE STRING,
EF7 TYPE STRING,
EDO TYPE STRING,
EDO1 TYPE STRING,
EDU TYPE STRING,
EDT TYPE STRING,
EDA TYPE STRING,
ETI TYPE STRING,
E_Y TYPE STRING,
E_YM TYPE STRING,
E_M TYPE STRING,
E_MD TYPE STRING,
E_D TYPE STRING,
E_N TYPE STRING,
E_QN TYPE STRING,
E_NCN TYPE STRING,
EA_U TYPE STRING,
ELA TYPE STRING,
EID TYPE STRING,
EIR TYPE STRING,
EIRS TYPE STRING,
EEN TYPE STRING,
ENO TYPE STRING,
ENT TYPE STRING,
ENTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SPRXT_MESS_IN_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_SPRXT_MESS_IN_STR-CONTROLLER sy-vline 
WA_SPRXT_MESS_IN_STR-ES sy-vline 
WA_SPRXT_MESS_IN_STR-ENS sy-vline 
WA_SPRXT_MESS_IN_STR-ET sy-vline 
WA_SPRXT_MESS_IN_STR-EB64 sy-vline 
WA_SPRXT_MESS_IN_STR-EHB sy-vline 
WA_SPRXT_MESS_IN_STR-EIT sy-vline 
WA_SPRXT_MESS_IN_STR-EPI sy-vline 
WA_SPRXT_MESS_IN_STR-ENI sy-vline 
WA_SPRXT_MESS_IN_STR-ENNI sy-vline 
WA_SPRXT_MESS_IN_STR-ENPI sy-vline 
WA_SPRXT_MESS_IN_STR-EL sy-vline 
WA_SPRXT_MESS_IN_STR-EUL sy-vline 
WA_SPRXT_MESS_IN_STR-EI sy-vline 
WA_SPRXT_MESS_IN_STR-EUS sy-vline 
WA_SPRXT_MESS_IN_STR-EB sy-vline 
WA_SPRXT_MESS_IN_STR-EUB sy-vline 
WA_SPRXT_MESS_IN_STR-ED sy-vline 
WA_SPRXT_MESS_IN_STR-EF sy-vline 
WA_SPRXT_MESS_IN_STR-EF1 sy-vline 
WA_SPRXT_MESS_IN_STR-EF2 sy-vline 
WA_SPRXT_MESS_IN_STR-EF3 sy-vline 
WA_SPRXT_MESS_IN_STR-EF4 sy-vline 
WA_SPRXT_MESS_IN_STR-EF5 sy-vline 
WA_SPRXT_MESS_IN_STR-EF6 sy-vline 
WA_SPRXT_MESS_IN_STR-EF7 sy-vline 
WA_SPRXT_MESS_IN_STR-EDO sy-vline 
WA_SPRXT_MESS_IN_STR-EDO1 sy-vline 
WA_SPRXT_MESS_IN_STR-EDU sy-vline 
WA_SPRXT_MESS_IN_STR-EDT sy-vline 
WA_SPRXT_MESS_IN_STR-EDA sy-vline 
WA_SPRXT_MESS_IN_STR-ETI sy-vline 
WA_SPRXT_MESS_IN_STR-E_Y sy-vline 
WA_SPRXT_MESS_IN_STR-E_YM sy-vline 
WA_SPRXT_MESS_IN_STR-E_M sy-vline 
WA_SPRXT_MESS_IN_STR-E_MD sy-vline 
WA_SPRXT_MESS_IN_STR-E_D sy-vline 
WA_SPRXT_MESS_IN_STR-E_N sy-vline 
WA_SPRXT_MESS_IN_STR-E_QN sy-vline 
WA_SPRXT_MESS_IN_STR-E_NCN sy-vline 
WA_SPRXT_MESS_IN_STR-EA_U sy-vline 
WA_SPRXT_MESS_IN_STR-ELA sy-vline 
WA_SPRXT_MESS_IN_STR-EID sy-vline 
WA_SPRXT_MESS_IN_STR-EIR sy-vline 
WA_SPRXT_MESS_IN_STR-EIRS sy-vline 
WA_SPRXT_MESS_IN_STR-EEN sy-vline 
WA_SPRXT_MESS_IN_STR-ENO sy-vline 
WA_SPRXT_MESS_IN_STR-ENT sy-vline 
WA_SPRXT_MESS_IN_STR-ENTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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