ABAP Select data from SAP table PS3467 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PS3467 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 PS3467. 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 PS3467 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_PS3467 TYPE STANDARD TABLE OF PS3467,
      WA_PS3467 TYPE PS3467,
      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: <PS3467> TYPE PS3467.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PS3467.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PS3467
  INTO TABLE IT_PS3467.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PS3467
*  INTO TABLE @DATA(IT_PS34672).
*--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_PS3467 INDEX 1 INTO DATA(WA_PS34672).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PS3467 ASSIGNING <PS3467>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PS3467>-DOCID = 1.
<PS3467>-DOGID = 1.
<PS3467>-DOCNO = 1.
<PS3467>-PREDA = 1.
<PS3467>-ACKDA = 1.

ENDLOOP.

LOOP AT IT_PS3467 INTO WA_PS3467.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PS3467-SIGNR, sy-vline,
  WA_PS3467-SENDT, sy-vline,
  WA_PS3467-SIGDT, sy-vline,
  WA_PS3467-LN1SU, sy-vline,
  WA_PS3467-LN1OB, sy-vline,
  WA_PS3467-LN1ED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PS3467 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_PS3467 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_PS3467 INTO WA_PS3467.


*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_PS3467_STR, 
DOCID TYPE STRING,
DOGID TYPE STRING,
DOCNO TYPE STRING,
PREDA TYPE STRING,
ACKDA TYPE STRING,
SIGNR TYPE STRING,
SENDT TYPE STRING,
SIGDT TYPE STRING,
LN1SU TYPE STRING,
LN1OB TYPE STRING,
LN1ED TYPE STRING,
LN1BD TYPE STRING,
LN1NR TYPE STRING,
LN2SU TYPE STRING,
LN2OB TYPE STRING,
LN2ED TYPE STRING,
LN2BD TYPE STRING,
LN2NR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PS3467_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_PS3467_STR-DOCID sy-vline 
WA_PS3467_STR-DOGID sy-vline 
WA_PS3467_STR-DOCNO sy-vline 
WA_PS3467_STR-PREDA sy-vline 
WA_PS3467_STR-ACKDA sy-vline 
WA_PS3467_STR-SIGNR sy-vline 
WA_PS3467_STR-SENDT sy-vline 
WA_PS3467_STR-SIGDT sy-vline 
WA_PS3467_STR-LN1SU sy-vline 
WA_PS3467_STR-LN1OB sy-vline 
WA_PS3467_STR-LN1ED sy-vline 
WA_PS3467_STR-LN1BD sy-vline 
WA_PS3467_STR-LN1NR sy-vline 
WA_PS3467_STR-LN2SU sy-vline 
WA_PS3467_STR-LN2OB sy-vline 
WA_PS3467_STR-LN2ED sy-vline 
WA_PS3467_STR-LN2BD sy-vline 
WA_PS3467_STR-LN2NR sy-vline      INTO ld_text SEPARATED BY SPACE.

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