ABAP Select data from SAP table /SMB/ECATT_LOG_STAT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SMB/ECATT_LOG_STAT 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 /SMB/ECATT_LOG_STAT. 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 /SMB/ECATT_LOG_STAT 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_/SMB/ECATT_LOG_STAT TYPE STANDARD TABLE OF /SMB/ECATT_LOG_STAT,
      WA_/SMB/ECATT_LOG_STAT TYPE /SMB/ECATT_LOG_STAT,
      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: </SMB/ECATT_LOG_STAT> TYPE /SMB/ECATT_LOG_STAT.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SMB/ECATT_LOG_STAT
  INTO TABLE IT_/SMB/ECATT_LOG_STAT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SMB/ECATT_LOG_STAT
*  INTO TABLE @DATA(IT_/SMB/ECATT_LOG_STAT2).
*--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_/SMB/ECATT_LOG_STAT INDEX 1 INTO DATA(WA_/SMB/ECATT_LOG_STAT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SMB/ECATT_LOG_STAT ASSIGNING </SMB/ECATT_LOG_STAT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SMB/ECATT_LOG_STAT>-MANDT = 1.
</SMB/ECATT_LOG_STAT>-OBJID = 1.
</SMB/ECATT_LOG_STAT>-VERSION = 1.
</SMB/ECATT_LOG_STAT>-OBJTY = 1.
</SMB/ECATT_LOG_STAT>-PNAME = 1.

ENDLOOP.

LOOP AT IT_/SMB/ECATT_LOG_STAT INTO WA_/SMB/ECATT_LOG_STAT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SMB/ECATT_LOG_STAT-PTYP, sy-vline,
  WA_/SMB/ECATT_LOG_STAT-PDESC, sy-vline,
  WA_/SMB/ECATT_LOG_STAT-PINDEX, sy-vline,
  WA_/SMB/ECATT_LOG_STAT-PGROUP, sy-vline,
  WA_/SMB/ECATT_LOG_STAT-XMLREF_TYP, sy-vline,
  WA_/SMB/ECATT_LOG_STAT-PSTRUC_TYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SMB/ECATT_LOG_STAT 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_/SMB/ECATT_LOG_STAT 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_/SMB/ECATT_LOG_STAT INTO WA_/SMB/ECATT_LOG_STAT.


*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.

*Conversion exit DTYPE, internal->external for field PDATTYP
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_/SMB/ECATT_LOG_STAT-PDATTYP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SMB/ECATT_LOG_STAT-PDATTYP.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/SMB/ECATT_LOG_STAT_STR, 
MANDT TYPE STRING,
OBJID TYPE STRING,
VERSION TYPE STRING,
OBJTY TYPE STRING,
PNAME TYPE STRING,
PTYP TYPE STRING,
PDESC TYPE STRING,
PINDEX TYPE STRING,
PGROUP TYPE STRING,
XMLREF_TYP TYPE STRING,
PSTRUC_TYP TYPE STRING,
PENV TYPE STRING,
PREF_TYPE TYPE STRING,
PREF_NAME TYPE STRING,
PDOM TYPE STRING,
PDATTYP TYPE STRING,
PDATLEN TYPE STRING,
PINTTYP TYPE STRING,
PINTLEN TYPE STRING,
PDECIMALS TYPE STRING,
OPTIONAL TYPE STRING,
SORT_LNR TYPE STRING,
TESTSYSTEM TYPE STRING,
PREF_NAME2 TYPE STRING,
TAB_INDEX TYPE STRING,
NOTCORRECT TYPE STRING,
CENTRALDATA TYPE STRING,
TABLENAME TYPE STRING,
FIELDNAME TYPE STRING,
CROSS_CLNT TYPE STRING,
KEYFLAG TYPE STRING,
CHANGE_STATUS TYPE STRING,
SEL TYPE STRING,
NODE_GUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SMB/ECATT_LOG_STAT_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_/SMB/ECATT_LOG_STAT_STR-MANDT sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-OBJID sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-VERSION sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-OBJTY sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-PNAME sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-PTYP sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-PDESC sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-PINDEX sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-PGROUP sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-XMLREF_TYP sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-PSTRUC_TYP sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-PENV sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-PREF_TYPE sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-PREF_NAME sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-PDOM sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-PDATTYP sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-PDATLEN sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-PINTTYP sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-PINTLEN sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-PDECIMALS sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-OPTIONAL sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-SORT_LNR sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-TESTSYSTEM sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-PREF_NAME2 sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-TAB_INDEX sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-NOTCORRECT sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-CENTRALDATA sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-TABLENAME sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-FIELDNAME sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-CROSS_CLNT sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-KEYFLAG sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-CHANGE_STATUS sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-SEL sy-vline 
WA_/SMB/ECATT_LOG_STAT_STR-NODE_GUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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