ABAP Select data from SAP table EASY_STRUC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EASY_STRUC
*  INTO TABLE @DATA(IT_EASY_STRUC2).
*--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_EASY_STRUC INDEX 1 INTO DATA(WA_EASY_STRUC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EASY_STRUC>-PFNAME_105 = 1.
<EASY_STRUC>-PFNAME_110 = 1.
<EASY_STRUC>-PFNAME_120 = 1.
<EASY_STRUC>-PFNAME_200 = 1.
<EASY_STRUC>-TXT_1200 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EASY_STRUC-SYSNAME, sy-vline,
  WA_EASY_STRUC-SYSNUMMER, sy-vline,
  WA_EASY_STRUC-RAD_VERW, sy-vline,
  WA_EASY_STRUC-RAD_EASY_K, sy-vline,
  WA_EASY_STRUC-RAD_EASY_P, sy-vline,
  WA_EASY_STRUC-RAD_EASY_D, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EASY_STRUC 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_EASY_STRUC 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_EASY_STRUC INTO WA_EASY_STRUC.


*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_EASY_STRUC_STR, 
PFNAME_105 TYPE STRING,
PFNAME_110 TYPE STRING,
PFNAME_120 TYPE STRING,
PFNAME_200 TYPE STRING,
TXT_1200 TYPE STRING,
SYSNAME TYPE STRING,
SYSNUMMER TYPE STRING,
RAD_VERW TYPE STRING,
RAD_EASY_K TYPE STRING,
RAD_EASY_P TYPE STRING,
RAD_EASY_D TYPE STRING,
RAD_EXPERT TYPE STRING,
RAD_INST TYPE STRING,
RAD_START TYPE STRING,
RAD_DEF TYPE STRING,
RAD_PROTO TYPE STRING,
RAD_PROFIL TYPE STRING,
MUSR TYPE STRING,
MDATE TYPE STRING,
MTIME TYPE STRING,
GUSR TYPE STRING,
GDATE TYPE STRING,
GTIME TYPE STRING,
INST_PROF TYPE STRING,
UNIXFILE12 TYPE STRING,
UNIXFILE20 TYPE STRING,
DBPROF TYPE STRING,
VERSNR TYPE STRING,
PFNAM_2000 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EASY_STRUC_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_EASY_STRUC_STR-PFNAME_105 sy-vline 
WA_EASY_STRUC_STR-PFNAME_110 sy-vline 
WA_EASY_STRUC_STR-PFNAME_120 sy-vline 
WA_EASY_STRUC_STR-PFNAME_200 sy-vline 
WA_EASY_STRUC_STR-TXT_1200 sy-vline 
WA_EASY_STRUC_STR-SYSNAME sy-vline 
WA_EASY_STRUC_STR-SYSNUMMER sy-vline 
WA_EASY_STRUC_STR-RAD_VERW sy-vline 
WA_EASY_STRUC_STR-RAD_EASY_K sy-vline 
WA_EASY_STRUC_STR-RAD_EASY_P sy-vline 
WA_EASY_STRUC_STR-RAD_EASY_D sy-vline 
WA_EASY_STRUC_STR-RAD_EXPERT sy-vline 
WA_EASY_STRUC_STR-RAD_INST sy-vline 
WA_EASY_STRUC_STR-RAD_START sy-vline 
WA_EASY_STRUC_STR-RAD_DEF sy-vline 
WA_EASY_STRUC_STR-RAD_PROTO sy-vline 
WA_EASY_STRUC_STR-RAD_PROFIL sy-vline 
WA_EASY_STRUC_STR-MUSR sy-vline 
WA_EASY_STRUC_STR-MDATE sy-vline 
WA_EASY_STRUC_STR-MTIME sy-vline 
WA_EASY_STRUC_STR-GUSR sy-vline 
WA_EASY_STRUC_STR-GDATE sy-vline 
WA_EASY_STRUC_STR-GTIME sy-vline 
WA_EASY_STRUC_STR-INST_PROF sy-vline 
WA_EASY_STRUC_STR-UNIXFILE12 sy-vline 
WA_EASY_STRUC_STR-UNIXFILE20 sy-vline 
WA_EASY_STRUC_STR-DBPROF sy-vline 
WA_EASY_STRUC_STR-VERSNR sy-vline 
WA_EASY_STRUC_STR-PFNAM_2000 sy-vline      INTO ld_text SEPARATED BY SPACE.

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