ABAP Select data from SAP table PS0371 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PS0371 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 PS0371. 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 PS0371 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_PS0371 TYPE STANDARD TABLE OF PS0371,
      WA_PS0371 TYPE PS0371,
      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: <PS0371> TYPE PS0371.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PS0371.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PS0371
  INTO TABLE IT_PS0371.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PS0371
*  INTO TABLE @DATA(IT_PS03712).
*--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_PS0371 INDEX 1 INTO DATA(WA_PS03712).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PS0371 ASSIGNING <PS0371>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PS0371>-PCNAM = 1.
<PS0371>-PCCOD = 1.
<PS0371>-ODECL = 1.
<PS0371>-LGA01 = 1.
<PS0371>-BET01 = 1.

ENDLOOP.

LOOP AT IT_PS0371 INTO WA_PS0371.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PS0371-WAE01, sy-vline,
  WA_PS0371-LGA02, sy-vline,
  WA_PS0371-BET02, sy-vline,
  WA_PS0371-WAE02, sy-vline,
  WA_PS0371-LGA03, sy-vline,
  WA_PS0371-BET03, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PS0371 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_PS0371 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_PS0371 INTO WA_PS0371.


*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_PS0371_STR, 
PCNAM TYPE STRING,
PCCOD TYPE STRING,
ODECL TYPE STRING,
LGA01 TYPE STRING,
BET01 TYPE STRING,
WAE01 TYPE STRING,
LGA02 TYPE STRING,
BET02 TYPE STRING,
WAE02 TYPE STRING,
LGA03 TYPE STRING,
BET03 TYPE STRING,
WAE03 TYPE STRING,
LGA04 TYPE STRING,
BET04 TYPE STRING,
WAE04 TYPE STRING,
LGA05 TYPE STRING,
BET05 TYPE STRING,
WAE05 TYPE STRING,
LGA06 TYPE STRING,
BET06 TYPE STRING,
WAE06 TYPE STRING,
LGA07 TYPE STRING,
BET07 TYPE STRING,
WAE07 TYPE STRING,
LGA08 TYPE STRING,
BET08 TYPE STRING,
WAE08 TYPE STRING,
LGA09 TYPE STRING,
BET09 TYPE STRING,
WAE09 TYPE STRING,
LGA10 TYPE STRING,
BET10 TYPE STRING,
WAE10 TYPE STRING,
LGA11 TYPE STRING,
BET11 TYPE STRING,
WAE11 TYPE STRING,
LGA12 TYPE STRING,
BET12 TYPE STRING,
WAE12 TYPE STRING,
LGA13 TYPE STRING,
BET13 TYPE STRING,
WAE13 TYPE STRING,
LGA14 TYPE STRING,
BET14 TYPE STRING,
WAE14 TYPE STRING,
LGA15 TYPE STRING,
BET15 TYPE STRING,
WAE15 TYPE STRING,
LGA16 TYPE STRING,
BET16 TYPE STRING,
WAE16 TYPE STRING,
LGA17 TYPE STRING,
BET17 TYPE STRING,
WAE17 TYPE STRING,
LGA18 TYPE STRING,
BET18 TYPE STRING,
WAE18 TYPE STRING,
LGA19 TYPE STRING,
BET19 TYPE STRING,
WAE19 TYPE STRING,
LGA20 TYPE STRING,
BET20 TYPE STRING,
WAE20 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PS0371_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_PS0371_STR-PCNAM sy-vline 
WA_PS0371_STR-PCCOD sy-vline 
WA_PS0371_STR-ODECL sy-vline 
WA_PS0371_STR-LGA01 sy-vline 
WA_PS0371_STR-BET01 sy-vline 
WA_PS0371_STR-WAE01 sy-vline 
WA_PS0371_STR-LGA02 sy-vline 
WA_PS0371_STR-BET02 sy-vline 
WA_PS0371_STR-WAE02 sy-vline 
WA_PS0371_STR-LGA03 sy-vline 
WA_PS0371_STR-BET03 sy-vline 
WA_PS0371_STR-WAE03 sy-vline 
WA_PS0371_STR-LGA04 sy-vline 
WA_PS0371_STR-BET04 sy-vline 
WA_PS0371_STR-WAE04 sy-vline 
WA_PS0371_STR-LGA05 sy-vline 
WA_PS0371_STR-BET05 sy-vline 
WA_PS0371_STR-WAE05 sy-vline 
WA_PS0371_STR-LGA06 sy-vline 
WA_PS0371_STR-BET06 sy-vline 
WA_PS0371_STR-WAE06 sy-vline 
WA_PS0371_STR-LGA07 sy-vline 
WA_PS0371_STR-BET07 sy-vline 
WA_PS0371_STR-WAE07 sy-vline 
WA_PS0371_STR-LGA08 sy-vline 
WA_PS0371_STR-BET08 sy-vline 
WA_PS0371_STR-WAE08 sy-vline 
WA_PS0371_STR-LGA09 sy-vline 
WA_PS0371_STR-BET09 sy-vline 
WA_PS0371_STR-WAE09 sy-vline 
WA_PS0371_STR-LGA10 sy-vline 
WA_PS0371_STR-BET10 sy-vline 
WA_PS0371_STR-WAE10 sy-vline 
WA_PS0371_STR-LGA11 sy-vline 
WA_PS0371_STR-BET11 sy-vline 
WA_PS0371_STR-WAE11 sy-vline 
WA_PS0371_STR-LGA12 sy-vline 
WA_PS0371_STR-BET12 sy-vline 
WA_PS0371_STR-WAE12 sy-vline 
WA_PS0371_STR-LGA13 sy-vline 
WA_PS0371_STR-BET13 sy-vline 
WA_PS0371_STR-WAE13 sy-vline 
WA_PS0371_STR-LGA14 sy-vline 
WA_PS0371_STR-BET14 sy-vline 
WA_PS0371_STR-WAE14 sy-vline 
WA_PS0371_STR-LGA15 sy-vline 
WA_PS0371_STR-BET15 sy-vline 
WA_PS0371_STR-WAE15 sy-vline 
WA_PS0371_STR-LGA16 sy-vline 
WA_PS0371_STR-BET16 sy-vline 
WA_PS0371_STR-WAE16 sy-vline 
WA_PS0371_STR-LGA17 sy-vline 
WA_PS0371_STR-BET17 sy-vline 
WA_PS0371_STR-WAE17 sy-vline 
WA_PS0371_STR-LGA18 sy-vline 
WA_PS0371_STR-BET18 sy-vline 
WA_PS0371_STR-WAE18 sy-vline 
WA_PS0371_STR-LGA19 sy-vline 
WA_PS0371_STR-BET19 sy-vline 
WA_PS0371_STR-WAE19 sy-vline 
WA_PS0371_STR-LGA20 sy-vline 
WA_PS0371_STR-BET20 sy-vline 
WA_PS0371_STR-WAE20 sy-vline      INTO ld_text SEPARATED BY SPACE.

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