ABAP Select data from SAP table EASY_HELP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EASY_HELP 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_HELP. 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_HELP 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_HELP TYPE STANDARD TABLE OF EASY_HELP,
      WA_EASY_HELP TYPE EASY_HELP,
      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_HELP> TYPE EASY_HELP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EASY_HELP
*  INTO TABLE @DATA(IT_EASY_HELP2).
*--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_HELP INDEX 1 INTO DATA(WA_EASY_HELP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EASY_HELP>-PFNAME = 1.
<EASY_HELP>-VERSNR = 1.
<EASY_HELP>-STOALL = 1.
<EASY_HELP>-STOWP = 1.
<EASY_HELP>-STOBUF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EASY_HELP-STOPXA, sy-vline,
  WA_EASY_HELP-STONTAB, sy-vline,
  WA_EASY_HELP-STOTB100, sy-vline,
  WA_EASY_HELP-STOTBLRU, sy-vline,
  WA_EASY_HELP-STOCUA, sy-vline,
  WA_EASY_HELP-STOPRES, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EASY_HELP 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_HELP 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_HELP INTO WA_EASY_HELP.


*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_HELP_STR, 
PFNAME TYPE STRING,
VERSNR TYPE STRING,
STOALL TYPE STRING,
STOWP TYPE STRING,
STOBUF TYPE STRING,
STOPXA TYPE STRING,
STONTAB TYPE STRING,
STOTB100 TYPE STRING,
STOTBLRU TYPE STRING,
STOCUA TYPE STRING,
STOPRES TYPE STRING,
STOROLL TYPE STRING,
STOPAGE TYPE STRING,
WPNODIA TYPE STRING,
WPNOVB TYPE STRING,
WPNOENQ TYPE STRING,
WPNOBTC TYPE STRING,
WPNOSPO TYPE STRING,
WPNOALL TYPE STRING,
WPCANO TYPE STRING,
APCANO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EASY_HELP_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_HELP_STR-PFNAME sy-vline 
WA_EASY_HELP_STR-VERSNR sy-vline 
WA_EASY_HELP_STR-STOALL sy-vline 
WA_EASY_HELP_STR-STOWP sy-vline 
WA_EASY_HELP_STR-STOBUF sy-vline 
WA_EASY_HELP_STR-STOPXA sy-vline 
WA_EASY_HELP_STR-STONTAB sy-vline 
WA_EASY_HELP_STR-STOTB100 sy-vline 
WA_EASY_HELP_STR-STOTBLRU sy-vline 
WA_EASY_HELP_STR-STOCUA sy-vline 
WA_EASY_HELP_STR-STOPRES sy-vline 
WA_EASY_HELP_STR-STOROLL sy-vline 
WA_EASY_HELP_STR-STOPAGE sy-vline 
WA_EASY_HELP_STR-WPNODIA sy-vline 
WA_EASY_HELP_STR-WPNOVB sy-vline 
WA_EASY_HELP_STR-WPNOENQ sy-vline 
WA_EASY_HELP_STR-WPNOBTC sy-vline 
WA_EASY_HELP_STR-WPNOSPO sy-vline 
WA_EASY_HELP_STR-WPNOALL sy-vline 
WA_EASY_HELP_STR-WPCANO sy-vline 
WA_EASY_HELP_STR-APCANO sy-vline      INTO ld_text SEPARATED BY SPACE.

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