ABAP Select data from SAP table PS0344 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PS0344 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 PS0344. 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 PS0344 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_PS0344 TYPE STANDARD TABLE OF PS0344,
      WA_PS0344 TYPE PS0344,
      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: <PS0344> TYPE PS0344.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PS0344.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PS0344
  INTO TABLE IT_PS0344.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PS0344
*  INTO TABLE @DATA(IT_PS03442).
*--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_PS0344 INDEX 1 INTO DATA(WA_PS03442).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PS0344 ASSIGNING <PS0344>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PS0344>-NAME2 = 1.
<PS0344>-STRAS = 1.
<PS0344>-LOCAT = 1.
<PS0344>-ORT01 = 1.
<PS0344>-COUNC = 1.

ENDLOOP.

LOOP AT IT_PS0344 INTO WA_PS0344.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PS0344-STATE, sy-vline,
  WA_PS0344-LAND1, sy-vline,
  WA_PS0344-PSTLZ, sy-vline,
  WA_PS0344-TELNR, sy-vline,
  WA_PS0344-COM01, sy-vline,
  WA_PS0344-NUM01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PS0344 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_PS0344 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_PS0344 INTO WA_PS0344.


*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_PS0344_STR, 
NAME2 TYPE STRING,
STRAS TYPE STRING,
LOCAT TYPE STRING,
ORT01 TYPE STRING,
COUNC TYPE STRING,
STATE TYPE STRING,
LAND1 TYPE STRING,
PSTLZ TYPE STRING,
TELNR TYPE STRING,
COM01 TYPE STRING,
NUM01 TYPE STRING,
COM02 TYPE STRING,
NUM02 TYPE STRING,
COM03 TYPE STRING,
NUM03 TYPE STRING,
COM04 TYPE STRING,
NUM04 TYPE STRING,
COM05 TYPE STRING,
NUM05 TYPE STRING,
COM06 TYPE STRING,
NUM06 TYPE STRING,
ANRED TYPE STRING,
SEPDT TYPE STRING,
FAMST TYPE STRING,
GBDEP TYPE STRING,
OCCUP TYPE STRING,
EAMES TYPE STRING,
ERNAM TYPE STRING,
NAMT1 TYPE STRING,
VORN1 TYPE STRING,
NACH1 TYPE STRING,
NAMT2 TYPE STRING,
VORN2 TYPE STRING,
NACH2 TYPE STRING,
ICTY1 TYPE STRING,
ICNM1 TYPE STRING,
AUTH1 TYPE STRING,
FPDT1 TYPE STRING,
EXPD1 TYPE STRING,
IDCT1 TYPE STRING,
ISCT1 TYPE STRING,
ICTY2 TYPE STRING,
ICNM2 TYPE STRING,
AUTH2 TYPE STRING,
FPDT2 TYPE STRING,
EXPD2 TYPE STRING,
IDCT2 TYPE STRING,
ISCT2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PS0344_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_PS0344_STR-NAME2 sy-vline 
WA_PS0344_STR-STRAS sy-vline 
WA_PS0344_STR-LOCAT sy-vline 
WA_PS0344_STR-ORT01 sy-vline 
WA_PS0344_STR-COUNC sy-vline 
WA_PS0344_STR-STATE sy-vline 
WA_PS0344_STR-LAND1 sy-vline 
WA_PS0344_STR-PSTLZ sy-vline 
WA_PS0344_STR-TELNR sy-vline 
WA_PS0344_STR-COM01 sy-vline 
WA_PS0344_STR-NUM01 sy-vline 
WA_PS0344_STR-COM02 sy-vline 
WA_PS0344_STR-NUM02 sy-vline 
WA_PS0344_STR-COM03 sy-vline 
WA_PS0344_STR-NUM03 sy-vline 
WA_PS0344_STR-COM04 sy-vline 
WA_PS0344_STR-NUM04 sy-vline 
WA_PS0344_STR-COM05 sy-vline 
WA_PS0344_STR-NUM05 sy-vline 
WA_PS0344_STR-COM06 sy-vline 
WA_PS0344_STR-NUM06 sy-vline 
WA_PS0344_STR-ANRED sy-vline 
WA_PS0344_STR-SEPDT sy-vline 
WA_PS0344_STR-FAMST sy-vline 
WA_PS0344_STR-GBDEP sy-vline 
WA_PS0344_STR-OCCUP sy-vline 
WA_PS0344_STR-EAMES sy-vline 
WA_PS0344_STR-ERNAM sy-vline 
WA_PS0344_STR-NAMT1 sy-vline 
WA_PS0344_STR-VORN1 sy-vline 
WA_PS0344_STR-NACH1 sy-vline 
WA_PS0344_STR-NAMT2 sy-vline 
WA_PS0344_STR-VORN2 sy-vline 
WA_PS0344_STR-NACH2 sy-vline 
WA_PS0344_STR-ICTY1 sy-vline 
WA_PS0344_STR-ICNM1 sy-vline 
WA_PS0344_STR-AUTH1 sy-vline 
WA_PS0344_STR-FPDT1 sy-vline 
WA_PS0344_STR-EXPD1 sy-vline 
WA_PS0344_STR-IDCT1 sy-vline 
WA_PS0344_STR-ISCT1 sy-vline 
WA_PS0344_STR-ICTY2 sy-vline 
WA_PS0344_STR-ICNM2 sy-vline 
WA_PS0344_STR-AUTH2 sy-vline 
WA_PS0344_STR-FPDT2 sy-vline 
WA_PS0344_STR-EXPD2 sy-vline 
WA_PS0344_STR-IDCT2 sy-vline 
WA_PS0344_STR-ISCT2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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