ABAP Select data from SAP table SAUNIT_FAV_BASE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SAUNIT_FAV_BASE
*  INTO TABLE @DATA(IT_SAUNIT_FAV_BASE2).
*--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_SAUNIT_FAV_BASE INDEX 1 INTO DATA(WA_SAUNIT_FAV_BASE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SAUNIT_FAV_BASE>-CLIENT = 1.
<SAUNIT_FAV_BASE>-OWNER = 1.
<SAUNIT_FAV_BASE>-FAVORITE_NAME = 1.
<SAUNIT_FAV_BASE>-TITLE = 1.
<SAUNIT_FAV_BASE>-EXECUTION_MODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SAUNIT_FAV_BASE-DURATION_LIMIT, sy-vline,
  WA_SAUNIT_FAV_BASE-RISK_LIMIT, sy-vline,
  WA_SAUNIT_FAV_BASE-SAP_LISTENER, sy-vline,
  WA_SAUNIT_FAV_BASE-USE_CUSTOM_LSTNR, sy-vline,
  WA_SAUNIT_FAV_BASE-USE_CUSTOM_DRTN, sy-vline,
  WA_SAUNIT_FAV_BASE-CUSTOM_LSTNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SAUNIT_FAV_BASE 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_SAUNIT_FAV_BASE 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_SAUNIT_FAV_BASE INTO WA_SAUNIT_FAV_BASE.


*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_SAUNIT_FAV_BASE_STR, 
CLIENT TYPE STRING,
OWNER TYPE STRING,
FAVORITE_NAME TYPE STRING,
TITLE TYPE STRING,
EXECUTION_MODE TYPE STRING,
DURATION_LIMIT TYPE STRING,
RISK_LIMIT TYPE STRING,
SAP_LISTENER TYPE STRING,
USE_CUSTOM_LSTNR TYPE STRING,
USE_CUSTOM_DRTN TYPE STRING,
CUSTOM_LSTNR TYPE STRING,
CATEGORY_SHORT TYPE STRING,
CATEGORY_MEDIUM TYPE STRING,
CATEGORY_LONG TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_ON TYPE STRING,
CHANGED_TS TYPE STRING,
EXPIRES_TS TYPE STRING,
AU_IS_EXPIRED TYPE STRING,
AU_DELETE_ON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SAUNIT_FAV_BASE_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_SAUNIT_FAV_BASE_STR-CLIENT sy-vline 
WA_SAUNIT_FAV_BASE_STR-OWNER sy-vline 
WA_SAUNIT_FAV_BASE_STR-FAVORITE_NAME sy-vline 
WA_SAUNIT_FAV_BASE_STR-TITLE sy-vline 
WA_SAUNIT_FAV_BASE_STR-EXECUTION_MODE sy-vline 
WA_SAUNIT_FAV_BASE_STR-DURATION_LIMIT sy-vline 
WA_SAUNIT_FAV_BASE_STR-RISK_LIMIT sy-vline 
WA_SAUNIT_FAV_BASE_STR-SAP_LISTENER sy-vline 
WA_SAUNIT_FAV_BASE_STR-USE_CUSTOM_LSTNR sy-vline 
WA_SAUNIT_FAV_BASE_STR-USE_CUSTOM_DRTN sy-vline 
WA_SAUNIT_FAV_BASE_STR-CUSTOM_LSTNR sy-vline 
WA_SAUNIT_FAV_BASE_STR-CATEGORY_SHORT sy-vline 
WA_SAUNIT_FAV_BASE_STR-CATEGORY_MEDIUM sy-vline 
WA_SAUNIT_FAV_BASE_STR-CATEGORY_LONG sy-vline 
WA_SAUNIT_FAV_BASE_STR-CHANGED_BY sy-vline 
WA_SAUNIT_FAV_BASE_STR-CHANGED_ON sy-vline 
WA_SAUNIT_FAV_BASE_STR-CHANGED_TS sy-vline 
WA_SAUNIT_FAV_BASE_STR-EXPIRES_TS sy-vline 
WA_SAUNIT_FAV_BASE_STR-AU_IS_EXPIRED sy-vline 
WA_SAUNIT_FAV_BASE_STR-AU_DELETE_ON sy-vline      INTO ld_text SEPARATED BY SPACE.

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