ABAP Select data from SAP table PS0319 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PS0319 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 PS0319. 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 PS0319 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_PS0319 TYPE STANDARD TABLE OF PS0319,
      WA_PS0319 TYPE PS0319,
      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: <PS0319> TYPE PS0319.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PS0319.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PS0319
  INTO TABLE IT_PS0319.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PS0319
*  INTO TABLE @DATA(IT_PS03192).
*--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_PS0319 INDEX 1 INTO DATA(WA_PS03192).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PS0319 ASSIGNING <PS0319>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PS0319>-INSTY = 1.
<PS0319>-ACCID = 1.
<PS0319>-CLEVL = 1.
<PS0319>-WAEHI = 1.
<PS0319>-EELUP = 1.

ENDLOOP.

LOOP AT IT_PS0319 INTO WA_PS0319.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PS0319-EELLO, sy-vline,
  WA_PS0319-ERLUP, sy-vline,
  WA_PS0319-ERLLO, sy-vline,
  WA_PS0319-DPNDS, sy-vline,
  WA_PS0319-CTYPE, sy-vline,
  WA_PS0319-PCTER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PS0319 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_PS0319 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_PS0319 INTO WA_PS0319.


*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_PS0319_STR, 
INSTY TYPE STRING,
ACCID TYPE STRING,
CLEVL TYPE STRING,
WAEHI TYPE STRING,
EELUP TYPE STRING,
EELLO TYPE STRING,
ERLUP TYPE STRING,
ERLLO TYPE STRING,
DPNDS TYPE STRING,
CTYPE TYPE STRING,
PCTER TYPE STRING,
PCTEE TYPE STRING,
AMTER TYPE STRING,
AMTEE TYPE STRING,
RULER TYPE STRING,
RULEE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PS0319_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_PS0319_STR-INSTY sy-vline 
WA_PS0319_STR-ACCID sy-vline 
WA_PS0319_STR-CLEVL sy-vline 
WA_PS0319_STR-WAEHI sy-vline 
WA_PS0319_STR-EELUP sy-vline 
WA_PS0319_STR-EELLO sy-vline 
WA_PS0319_STR-ERLUP sy-vline 
WA_PS0319_STR-ERLLO sy-vline 
WA_PS0319_STR-DPNDS sy-vline 
WA_PS0319_STR-CTYPE sy-vline 
WA_PS0319_STR-PCTER sy-vline 
WA_PS0319_STR-PCTEE sy-vline 
WA_PS0319_STR-AMTER sy-vline 
WA_PS0319_STR-AMTEE sy-vline 
WA_PS0319_STR-RULER sy-vline 
WA_PS0319_STR-RULEE sy-vline      INTO ld_text SEPARATED BY SPACE.

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