ABAP Select data from SAP table P03_LZGLZ_FORMHDR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P03_LZGLZ_FORMHDR 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 P03_LZGLZ_FORMHDR. 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 P03_LZGLZ_FORMHDR 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_P03_LZGLZ_FORMHDR TYPE STANDARD TABLE OF P03_LZGLZ_FORMHDR,
      WA_P03_LZGLZ_FORMHDR TYPE P03_LZGLZ_FORMHDR,
      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: <P03_LZGLZ_FORMHDR> TYPE P03_LZGLZ_FORMHDR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P03_LZGLZ_FORMHDR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P03_LZGLZ_FORMHDR
  INTO TABLE IT_P03_LZGLZ_FORMHDR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P03_LZGLZ_FORMHDR
*  INTO TABLE @DATA(IT_P03_LZGLZ_FORMHDR2).
*--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_P03_LZGLZ_FORMHDR INDEX 1 INTO DATA(WA_P03_LZGLZ_FORMHDR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P03_LZGLZ_FORMHDR ASSIGNING <P03_LZGLZ_FORMHDR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P03_LZGLZ_FORMHDR>-HEADER = 1.
<P03_LZGLZ_FORMHDR>-NACHN = 1.
<P03_LZGLZ_FORMHDR>-VORNA = 1.
<P03_LZGLZ_FORMHDR>-TITEL = 1.
<P03_LZGLZ_FORMHDR>-ANADR = 1.

ENDLOOP.

LOOP AT IT_P03_LZGLZ_FORMHDR INTO WA_P03_LZGLZ_FORMHDR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P03_LZGLZ_FORMHDR-ANPLZ, sy-vline,
  WA_P03_LZGLZ_FORMHDR-ANORT, sy-vline,
  WA_P03_LZGLZ_FORMHDR-AUSVL, sy-vline,
  WA_P03_LZGLZ_FORMHDR-AUSVG, sy-vline,
  WA_P03_LZGLZ_FORMHDR-DGTEL, sy-vline,
  WA_P03_LZGLZ_FORMHDR-LBNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P03_LZGLZ_FORMHDR 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_P03_LZGLZ_FORMHDR 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_P03_LZGLZ_FORMHDR INTO WA_P03_LZGLZ_FORMHDR.


*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_P03_LZGLZ_FORMHDR_STR, 
HEADER TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
TITEL TYPE STRING,
ANADR TYPE STRING,
ANPLZ TYPE STRING,
ANORT TYPE STRING,
AUSVL TYPE STRING,
AUSVG TYPE STRING,
DGTEL TYPE STRING,
LBNAM TYPE STRING,
LBAD1 TYPE STRING,
LBAD2 TYPE STRING,
LBAD3 TYPE STRING,
LBAD4 TYPE STRING,
DATUM TYPE STRING,
CSORT TYPE STRING,
GEBD TYPE STRING,
GEBDP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P03_LZGLZ_FORMHDR_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_P03_LZGLZ_FORMHDR_STR-HEADER sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-NACHN sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-VORNA sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-TITEL sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-ANADR sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-ANPLZ sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-ANORT sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-AUSVL sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-AUSVG sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-DGTEL sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-LBNAM sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-LBAD1 sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-LBAD2 sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-LBAD3 sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-LBAD4 sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-DATUM sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-CSORT sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-GEBD sy-vline 
WA_P03_LZGLZ_FORMHDR_STR-GEBDP sy-vline      INTO ld_text SEPARATED BY SPACE.

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