ABAP Select data from SAP table FLOG_RETCTN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FLOG_RETCTN
*  INTO TABLE @DATA(IT_FLOG_RETCTN2).
*--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_FLOG_RETCTN INDEX 1 INTO DATA(WA_FLOG_RETCTN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FLOG_RETCTN>-MANDT = 1.
<FLOG_RETCTN>-CONT_ID = 1.
<FLOG_RETCTN>-DISPATCHDAT = 1.
<FLOG_RETCTN>-DISPATCH_LOC = 1.
<FLOG_RETCTN>-CONT_TRIPCNT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FLOG_RETCTN-CONT_STATUS, sy-vline,
  WA_FLOG_RETCTN-PROCESS_START_DAT, sy-vline,
  WA_FLOG_RETCTN-PROCESS_END_DAT, sy-vline,
  WA_FLOG_RETCTN-SUPPLY_PLANT, sy-vline,
  WA_FLOG_RETCTN-FLDLOGSSHIPMENTID, sy-vline,
  WA_FLOG_RETCTN-PROCESS_TYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FLOG_RETCTN 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_FLOG_RETCTN 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_FLOG_RETCTN INTO WA_FLOG_RETCTN.


*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_FLOG_RETCTN_STR, 
MANDT TYPE STRING,
CONT_ID TYPE STRING,
DISPATCHDAT TYPE STRING,
DISPATCH_LOC TYPE STRING,
CONT_TRIPCNT TYPE STRING,
CONT_STATUS TYPE STRING,
PROCESS_START_DAT TYPE STRING,
PROCESS_END_DAT TYPE STRING,
SUPPLY_PLANT TYPE STRING,
FLDLOGSSHIPMENTID TYPE STRING,
PROCESS_TYPE TYPE STRING,
RECEIVINGPLANT TYPE STRING,
FLDLOGSCONTAINERUUID TYPE STRING,
FLDLOGSCONTAINERUNITUUID TYPE STRING,
ALLPROCESSED TYPE STRING,
DEL_FLAG TYPE STRING,
CHANGEDAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FLOG_RETCTN_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_FLOG_RETCTN_STR-MANDT sy-vline 
WA_FLOG_RETCTN_STR-CONT_ID sy-vline 
WA_FLOG_RETCTN_STR-DISPATCHDAT sy-vline 
WA_FLOG_RETCTN_STR-DISPATCH_LOC sy-vline 
WA_FLOG_RETCTN_STR-CONT_TRIPCNT sy-vline 
WA_FLOG_RETCTN_STR-CONT_STATUS sy-vline 
WA_FLOG_RETCTN_STR-PROCESS_START_DAT sy-vline 
WA_FLOG_RETCTN_STR-PROCESS_END_DAT sy-vline 
WA_FLOG_RETCTN_STR-SUPPLY_PLANT sy-vline 
WA_FLOG_RETCTN_STR-FLDLOGSSHIPMENTID sy-vline 
WA_FLOG_RETCTN_STR-PROCESS_TYPE sy-vline 
WA_FLOG_RETCTN_STR-RECEIVINGPLANT sy-vline 
WA_FLOG_RETCTN_STR-FLDLOGSCONTAINERUUID sy-vline 
WA_FLOG_RETCTN_STR-FLDLOGSCONTAINERUNITUUID sy-vline 
WA_FLOG_RETCTN_STR-ALLPROCESSED sy-vline 
WA_FLOG_RETCTN_STR-DEL_FLAG sy-vline 
WA_FLOG_RETCTN_STR-CHANGEDAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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