ABAP Select data from SAP table PEHV1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PEHV1 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 PEHV1. 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 PEHV1 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_PEHV1 TYPE STANDARD TABLE OF PEHV1,
      WA_PEHV1 TYPE PEHV1,
      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: <PEHV1> TYPE PEHV1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PEHV1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PEHV1
  INTO TABLE IT_PEHV1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PEHV1
*  INTO TABLE @DATA(IT_PEHV12).
*--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_PEHV1 INDEX 1 INTO DATA(WA_PEHV12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PEHV1 ASSIGNING <PEHV1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PEHV1>-EMPLOYEENO = 1.
<PEHV1>-SUBTYPE = 1.
<PEHV1>-OBJECTID = 1.
<PEHV1>-LOCKINDIC = 1.
<PEHV1>-VALIDEND = 1.

ENDLOOP.

LOOP AT IT_PEHV1 INTO WA_PEHV1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PEHV1-VALIDBEGIN, sy-vline,
  WA_PEHV1-RECORDNR, sy-vline,
  WA_PEHV1-ADDRESSTYPE, sy-vline,
  WA_PEHV1-NAMEOFADDRESSTYPE, sy-vline,
  WA_PEHV1-CONAME, sy-vline,
  WA_PEHV1-STREETANDHOUSENO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PEHV1 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_PEHV1 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_PEHV1 INTO WA_PEHV1.


*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_PEHV1_STR, 
EMPLOYEENO TYPE STRING,
SUBTYPE TYPE STRING,
OBJECTID TYPE STRING,
LOCKINDIC TYPE STRING,
VALIDEND TYPE STRING,
VALIDBEGIN TYPE STRING,
RECORDNR TYPE STRING,
ADDRESSTYPE TYPE STRING,
NAMEOFADDRESSTYPE TYPE STRING,
CONAME TYPE STRING,
STREETANDHOUSENO TYPE STRING,
SCNDADDRESSLINE TYPE STRING,
CITY TYPE STRING,
DISTRICT TYPE STRING,
POSTALCODECITY TYPE STRING,
STATE TYPE STRING,
NAMEOFSTATE TYPE STRING,
COUNTRY TYPE STRING,
NAMEOFCOUNTRY TYPE STRING,
TELEPHONENUMBER TYPE STRING,
PISO TYPE STRING,
NUMERO TYPE STRING,
URBANIZACION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PEHV1_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_PEHV1_STR-EMPLOYEENO sy-vline 
WA_PEHV1_STR-SUBTYPE sy-vline 
WA_PEHV1_STR-OBJECTID sy-vline 
WA_PEHV1_STR-LOCKINDIC sy-vline 
WA_PEHV1_STR-VALIDEND sy-vline 
WA_PEHV1_STR-VALIDBEGIN sy-vline 
WA_PEHV1_STR-RECORDNR sy-vline 
WA_PEHV1_STR-ADDRESSTYPE sy-vline 
WA_PEHV1_STR-NAMEOFADDRESSTYPE sy-vline 
WA_PEHV1_STR-CONAME sy-vline 
WA_PEHV1_STR-STREETANDHOUSENO sy-vline 
WA_PEHV1_STR-SCNDADDRESSLINE sy-vline 
WA_PEHV1_STR-CITY sy-vline 
WA_PEHV1_STR-DISTRICT sy-vline 
WA_PEHV1_STR-POSTALCODECITY sy-vline 
WA_PEHV1_STR-STATE sy-vline 
WA_PEHV1_STR-NAMEOFSTATE sy-vline 
WA_PEHV1_STR-COUNTRY sy-vline 
WA_PEHV1_STR-NAMEOFCOUNTRY sy-vline 
WA_PEHV1_STR-TELEPHONENUMBER sy-vline 
WA_PEHV1_STR-PISO sy-vline 
WA_PEHV1_STR-NUMERO sy-vline 
WA_PEHV1_STR-URBANIZACION sy-vline      INTO ld_text SEPARATED BY SPACE.

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