ABAP Select data from SAP table ETXML_ATTR into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ETXML_ATTR
*  INTO TABLE @DATA(IT_ETXML_ATTR2).
*--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_ETXML_ATTR INDEX 1 INTO DATA(WA_ETXML_ATTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ETXML_ATTR>-PAR_TYPE = 1.
<ETXML_ATTR>-ELEMENT = 1.
<ETXML_ATTR>-DATA = 1.
<ETXML_ATTR>-TYPE = 1.
<ETXML_ATTR>-DDICTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ETXML_ATTR-DEFAULT, sy-vline,
  WA_ETXML_ATTR-KEY, sy-vline,
  WA_ETXML_ATTR-OPTIONAL, sy-vline,
  WA_ETXML_ATTR-LENGTH, sy-vline,
  WA_ETXML_ATTR-PRECISION, sy-vline,
  WA_ETXML_ATTR-SCALE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ETXML_ATTR 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_ETXML_ATTR 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_ETXML_ATTR INTO WA_ETXML_ATTR.


*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_ETXML_ATTR_STR, 
PAR_TYPE TYPE STRING,
ELEMENT TYPE STRING,
DATA TYPE STRING,
TYPE TYPE STRING,
DDICTYPE TYPE STRING,
DEFAULT TYPE STRING,
KEY TYPE STRING,
OPTIONAL TYPE STRING,
LENGTH TYPE STRING,
PRECISION TYPE STRING,
SCALE TYPE STRING,
ENCODING TYPE STRING,
DOCU TYPE STRING,
GID TYPE STRING,
NODE_LEV TYPE STRING,
HANDLSTYLE TYPE STRING,
READONLY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ETXML_ATTR_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_ETXML_ATTR_STR-PAR_TYPE sy-vline 
WA_ETXML_ATTR_STR-ELEMENT sy-vline 
WA_ETXML_ATTR_STR-DATA sy-vline 
WA_ETXML_ATTR_STR-TYPE sy-vline 
WA_ETXML_ATTR_STR-DDICTYPE sy-vline 
WA_ETXML_ATTR_STR-DEFAULT sy-vline 
WA_ETXML_ATTR_STR-KEY sy-vline 
WA_ETXML_ATTR_STR-OPTIONAL sy-vline 
WA_ETXML_ATTR_STR-LENGTH sy-vline 
WA_ETXML_ATTR_STR-PRECISION sy-vline 
WA_ETXML_ATTR_STR-SCALE sy-vline 
WA_ETXML_ATTR_STR-ENCODING sy-vline 
WA_ETXML_ATTR_STR-DOCU sy-vline 
WA_ETXML_ATTR_STR-GID sy-vline 
WA_ETXML_ATTR_STR-NODE_LEV sy-vline 
WA_ETXML_ATTR_STR-HANDLSTYLE sy-vline 
WA_ETXML_ATTR_STR-READONLY sy-vline      INTO ld_text SEPARATED BY SPACE.

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