ABAP Select data from SAP table PTDB_ZEIT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTDB_ZEIT
*  INTO TABLE @DATA(IT_PTDB_ZEIT2).
*--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_PTDB_ZEIT INDEX 1 INTO DATA(WA_PTDB_ZEIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTDB_ZEIT>-PERNR = 1.
<PTDB_ZEIT>-ENAME = 1.
<PTDB_ZEIT>-BEGDA = 1.
<PTDB_ZEIT>-BAUBZ = 1.
<PTDB_ZEIT>-BAUNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTDB_ZEIT-KTEXT, sy-vline,
  WA_PTDB_ZEIT-KOLON, sy-vline,
  WA_PTDB_ZEIT-KOTXT, sy-vline,
  WA_PTDB_ZEIT-KURZK, sy-vline,
  WA_PTDB_ZEIT-KKTXT, sy-vline,
  WA_PTDB_ZEIT-STDAZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTDB_ZEIT 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_PTDB_ZEIT 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_PTDB_ZEIT INTO WA_PTDB_ZEIT.


*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_PTDB_ZEIT_STR, 
PERNR TYPE STRING,
ENAME TYPE STRING,
BEGDA TYPE STRING,
BAUBZ TYPE STRING,
BAUNR TYPE STRING,
KTEXT TYPE STRING,
KOLON TYPE STRING,
KOTXT TYPE STRING,
KURZK TYPE STRING,
KKTXT TYPE STRING,
STDAZ TYPE STRING,
PLANT TYPE STRING,
DIFFT TYPE STRING,
BABAS TYPE STRING,
BTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTDB_ZEIT_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_PTDB_ZEIT_STR-PERNR sy-vline 
WA_PTDB_ZEIT_STR-ENAME sy-vline 
WA_PTDB_ZEIT_STR-BEGDA sy-vline 
WA_PTDB_ZEIT_STR-BAUBZ sy-vline 
WA_PTDB_ZEIT_STR-BAUNR sy-vline 
WA_PTDB_ZEIT_STR-KTEXT sy-vline 
WA_PTDB_ZEIT_STR-KOLON sy-vline 
WA_PTDB_ZEIT_STR-KOTXT sy-vline 
WA_PTDB_ZEIT_STR-KURZK sy-vline 
WA_PTDB_ZEIT_STR-KKTXT sy-vline 
WA_PTDB_ZEIT_STR-STDAZ sy-vline 
WA_PTDB_ZEIT_STR-PLANT sy-vline 
WA_PTDB_ZEIT_STR-DIFFT sy-vline 
WA_PTDB_ZEIT_STR-BABAS sy-vline 
WA_PTDB_ZEIT_STR-BTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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