ABAP Select data from SAP table PS3213 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PS3213 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 PS3213. 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 PS3213 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_PS3213 TYPE STANDARD TABLE OF PS3213,
      WA_PS3213 TYPE PS3213,
      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: <PS3213> TYPE PS3213.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PS3213.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PS3213
  INTO TABLE IT_PS3213.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PS3213
*  INTO TABLE @DATA(IT_PS32132).
*--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_PS3213 INDEX 1 INTO DATA(WA_PS32132).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PS3213 ASSIGNING <PS3213>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PS3213>-CTYPE = 1.
<PS3213>-IDPLN = 1.
<PS3213>-IDSBP = 1.
<PS3213>-STATS = 1.
<PS3213>-WAERS = 1.

ENDLOOP.

LOOP AT IT_PS3213 INTO WA_PS3213.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PS3213-SEQUE01, sy-vline,
  WA_PS3213-METHD01, sy-vline,
  WA_PS3213-PCTDD01, sy-vline,
  WA_PS3213-FIXDD01, sy-vline,
  WA_PS3213-OUCTR01, sy-vline,
  WA_PS3213-EXCTR01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PS3213 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_PS3213 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_PS3213 INTO WA_PS3213.


*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_PS3213_STR, 
CTYPE TYPE STRING,
IDPLN TYPE STRING,
IDSBP TYPE STRING,
STATS TYPE STRING,
WAERS TYPE STRING,
SEQUE01 TYPE STRING,
METHD01 TYPE STRING,
PCTDD01 TYPE STRING,
FIXDD01 TYPE STRING,
OUCTR01 TYPE STRING,
EXCTR01 TYPE STRING,
SEQUE02 TYPE STRING,
METHD02 TYPE STRING,
PCTDD02 TYPE STRING,
FIXDD02 TYPE STRING,
OUCTR02 TYPE STRING,
EXCTR02 TYPE STRING,
SEQUE03 TYPE STRING,
METHD03 TYPE STRING,
PCTDD03 TYPE STRING,
FIXDD03 TYPE STRING,
OUCTR03 TYPE STRING,
EXCTR03 TYPE STRING,
SEQUE04 TYPE STRING,
METHD04 TYPE STRING,
PCTDD04 TYPE STRING,
FIXDD04 TYPE STRING,
OUCTR04 TYPE STRING,
EXCTR04 TYPE STRING,
SEQUE05 TYPE STRING,
METHD05 TYPE STRING,
PCTDD05 TYPE STRING,
FIXDD05 TYPE STRING,
OUCTR05 TYPE STRING,
EXCTR05 TYPE STRING,
SEQUE06 TYPE STRING,
METHD06 TYPE STRING,
PCTDD06 TYPE STRING,
FIXDD06 TYPE STRING,
OUCTR06 TYPE STRING,
EXCTR06 TYPE STRING,
SEQUE07 TYPE STRING,
METHD07 TYPE STRING,
PCTDD07 TYPE STRING,
FIXDD07 TYPE STRING,
OUCTR07 TYPE STRING,
EXCTR07 TYPE STRING,
SEQUE08 TYPE STRING,
METHD08 TYPE STRING,
PCTDD08 TYPE STRING,
FIXDD08 TYPE STRING,
OUCTR08 TYPE STRING,
EXCTR08 TYPE STRING,
SEQUE09 TYPE STRING,
METHD09 TYPE STRING,
PCTDD09 TYPE STRING,
FIXDD09 TYPE STRING,
OUCTR09 TYPE STRING,
EXCTR09 TYPE STRING,
CTRID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PS3213_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_PS3213_STR-CTYPE sy-vline 
WA_PS3213_STR-IDPLN sy-vline 
WA_PS3213_STR-IDSBP sy-vline 
WA_PS3213_STR-STATS sy-vline 
WA_PS3213_STR-WAERS sy-vline 
WA_PS3213_STR-SEQUE01 sy-vline 
WA_PS3213_STR-METHD01 sy-vline 
WA_PS3213_STR-PCTDD01 sy-vline 
WA_PS3213_STR-FIXDD01 sy-vline 
WA_PS3213_STR-OUCTR01 sy-vline 
WA_PS3213_STR-EXCTR01 sy-vline 
WA_PS3213_STR-SEQUE02 sy-vline 
WA_PS3213_STR-METHD02 sy-vline 
WA_PS3213_STR-PCTDD02 sy-vline 
WA_PS3213_STR-FIXDD02 sy-vline 
WA_PS3213_STR-OUCTR02 sy-vline 
WA_PS3213_STR-EXCTR02 sy-vline 
WA_PS3213_STR-SEQUE03 sy-vline 
WA_PS3213_STR-METHD03 sy-vline 
WA_PS3213_STR-PCTDD03 sy-vline 
WA_PS3213_STR-FIXDD03 sy-vline 
WA_PS3213_STR-OUCTR03 sy-vline 
WA_PS3213_STR-EXCTR03 sy-vline 
WA_PS3213_STR-SEQUE04 sy-vline 
WA_PS3213_STR-METHD04 sy-vline 
WA_PS3213_STR-PCTDD04 sy-vline 
WA_PS3213_STR-FIXDD04 sy-vline 
WA_PS3213_STR-OUCTR04 sy-vline 
WA_PS3213_STR-EXCTR04 sy-vline 
WA_PS3213_STR-SEQUE05 sy-vline 
WA_PS3213_STR-METHD05 sy-vline 
WA_PS3213_STR-PCTDD05 sy-vline 
WA_PS3213_STR-FIXDD05 sy-vline 
WA_PS3213_STR-OUCTR05 sy-vline 
WA_PS3213_STR-EXCTR05 sy-vline 
WA_PS3213_STR-SEQUE06 sy-vline 
WA_PS3213_STR-METHD06 sy-vline 
WA_PS3213_STR-PCTDD06 sy-vline 
WA_PS3213_STR-FIXDD06 sy-vline 
WA_PS3213_STR-OUCTR06 sy-vline 
WA_PS3213_STR-EXCTR06 sy-vline 
WA_PS3213_STR-SEQUE07 sy-vline 
WA_PS3213_STR-METHD07 sy-vline 
WA_PS3213_STR-PCTDD07 sy-vline 
WA_PS3213_STR-FIXDD07 sy-vline 
WA_PS3213_STR-OUCTR07 sy-vline 
WA_PS3213_STR-EXCTR07 sy-vline 
WA_PS3213_STR-SEQUE08 sy-vline 
WA_PS3213_STR-METHD08 sy-vline 
WA_PS3213_STR-PCTDD08 sy-vline 
WA_PS3213_STR-FIXDD08 sy-vline 
WA_PS3213_STR-OUCTR08 sy-vline 
WA_PS3213_STR-EXCTR08 sy-vline 
WA_PS3213_STR-SEQUE09 sy-vline 
WA_PS3213_STR-METHD09 sy-vline 
WA_PS3213_STR-PCTDD09 sy-vline 
WA_PS3213_STR-FIXDD09 sy-vline 
WA_PS3213_STR-OUCTR09 sy-vline 
WA_PS3213_STR-EXCTR09 sy-vline 
WA_PS3213_STR-CTRID sy-vline      INTO ld_text SEPARATED BY SPACE.

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