ABAP Select data from SAP table P0374 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P0374 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 P0374. 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 P0374 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_P0374 TYPE STANDARD TABLE OF P0374,
      WA_P0374 TYPE P0374,
      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: <P0374> TYPE P0374.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P0374.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P0374
  INTO TABLE IT_P0374.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P0374
*  INTO TABLE @DATA(IT_P03742).
*--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_P0374 INDEX 1 INTO DATA(WA_P03742).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P0374 ASSIGNING <P0374>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P0374>-PERNR = 1.
<P0374>-INFTY = 1.
<P0374>-SUBTY = 1.
<P0374>-OBJPS = 1.
<P0374>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_P0374 INTO WA_P0374.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P0374-ENDDA, sy-vline,
  WA_P0374-BEGDA, sy-vline,
  WA_P0374-SEQNR, sy-vline,
  WA_P0374-AEDTM, sy-vline,
  WA_P0374-UNAME, sy-vline,
  WA_P0374-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P0374 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_P0374 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_P0374 INTO WA_P0374.


*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_P0374_STR, 
PERNR TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
HISTO TYPE STRING,
ITXEX TYPE STRING,
REFEX TYPE STRING,
ORDEX TYPE STRING,
ITBLD TYPE STRING,
PREAS TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
FLAG3 TYPE STRING,
FLAG4 TYPE STRING,
RESE1 TYPE STRING,
RESE2 TYPE STRING,
GRPVL TYPE STRING,
ELSUB TYPE STRING,
CAT01 TYPE STRING,
ENT01 TYPE STRING,
CAT02 TYPE STRING,
ENT02 TYPE STRING,
CAT03 TYPE STRING,
ENT03 TYPE STRING,
CAT04 TYPE STRING,
ENT04 TYPE STRING,
CAT05 TYPE STRING,
ENT05 TYPE STRING,
CAT06 TYPE STRING,
ENT06 TYPE STRING,
CAT07 TYPE STRING,
ENT07 TYPE STRING,
CAT08 TYPE STRING,
ENT08 TYPE STRING,
CAT09 TYPE STRING,
ENT09 TYPE STRING,
CAT10 TYPE STRING,
ENT10 TYPE STRING,
CAT11 TYPE STRING,
ENT11 TYPE STRING,
CAT12 TYPE STRING,
ENT12 TYPE STRING,
CAT13 TYPE STRING,
ENT13 TYPE STRING,
CAT14 TYPE STRING,
ENT14 TYPE STRING,
CAT15 TYPE STRING,
ENT15 TYPE STRING,
CAT16 TYPE STRING,
ENT16 TYPE STRING,
CAT17 TYPE STRING,
ENT17 TYPE STRING,
CAT18 TYPE STRING,
ENT18 TYPE STRING,
CAT19 TYPE STRING,
ENT19 TYPE STRING,
CAT20 TYPE STRING,
ENT20 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P0374_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_P0374_STR-PERNR sy-vline 
WA_P0374_STR-INFTY sy-vline 
WA_P0374_STR-SUBTY sy-vline 
WA_P0374_STR-OBJPS sy-vline 
WA_P0374_STR-SPRPS sy-vline 
WA_P0374_STR-ENDDA sy-vline 
WA_P0374_STR-BEGDA sy-vline 
WA_P0374_STR-SEQNR sy-vline 
WA_P0374_STR-AEDTM sy-vline 
WA_P0374_STR-UNAME sy-vline 
WA_P0374_STR-HISTO sy-vline 
WA_P0374_STR-ITXEX sy-vline 
WA_P0374_STR-REFEX sy-vline 
WA_P0374_STR-ORDEX sy-vline 
WA_P0374_STR-ITBLD sy-vline 
WA_P0374_STR-PREAS sy-vline 
WA_P0374_STR-FLAG1 sy-vline 
WA_P0374_STR-FLAG2 sy-vline 
WA_P0374_STR-FLAG3 sy-vline 
WA_P0374_STR-FLAG4 sy-vline 
WA_P0374_STR-RESE1 sy-vline 
WA_P0374_STR-RESE2 sy-vline 
WA_P0374_STR-GRPVL sy-vline 
WA_P0374_STR-ELSUB sy-vline 
WA_P0374_STR-CAT01 sy-vline 
WA_P0374_STR-ENT01 sy-vline 
WA_P0374_STR-CAT02 sy-vline 
WA_P0374_STR-ENT02 sy-vline 
WA_P0374_STR-CAT03 sy-vline 
WA_P0374_STR-ENT03 sy-vline 
WA_P0374_STR-CAT04 sy-vline 
WA_P0374_STR-ENT04 sy-vline 
WA_P0374_STR-CAT05 sy-vline 
WA_P0374_STR-ENT05 sy-vline 
WA_P0374_STR-CAT06 sy-vline 
WA_P0374_STR-ENT06 sy-vline 
WA_P0374_STR-CAT07 sy-vline 
WA_P0374_STR-ENT07 sy-vline 
WA_P0374_STR-CAT08 sy-vline 
WA_P0374_STR-ENT08 sy-vline 
WA_P0374_STR-CAT09 sy-vline 
WA_P0374_STR-ENT09 sy-vline 
WA_P0374_STR-CAT10 sy-vline 
WA_P0374_STR-ENT10 sy-vline 
WA_P0374_STR-CAT11 sy-vline 
WA_P0374_STR-ENT11 sy-vline 
WA_P0374_STR-CAT12 sy-vline 
WA_P0374_STR-ENT12 sy-vline 
WA_P0374_STR-CAT13 sy-vline 
WA_P0374_STR-ENT13 sy-vline 
WA_P0374_STR-CAT14 sy-vline 
WA_P0374_STR-ENT14 sy-vline 
WA_P0374_STR-CAT15 sy-vline 
WA_P0374_STR-ENT15 sy-vline 
WA_P0374_STR-CAT16 sy-vline 
WA_P0374_STR-ENT16 sy-vline 
WA_P0374_STR-CAT17 sy-vline 
WA_P0374_STR-ENT17 sy-vline 
WA_P0374_STR-CAT18 sy-vline 
WA_P0374_STR-ENT18 sy-vline 
WA_P0374_STR-CAT19 sy-vline 
WA_P0374_STR-ENT19 sy-vline 
WA_P0374_STR-CAT20 sy-vline 
WA_P0374_STR-ENT20 sy-vline      INTO ld_text SEPARATED BY SPACE.

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