ABAP Select data from SAP table ESH_L_DEFECT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_L_DEFECT
*  INTO TABLE @DATA(IT_ESH_L_DEFECT2).
*--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_ESH_L_DEFECT INDEX 1 INTO DATA(WA_ESH_L_DEFECT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_L_DEFECT>-MANDT = 1.
<ESH_L_DEFECT>-DEFECTINTERNALID = 1.
<ESH_L_DEFECT>-CREATIONDATE = 1.
<ESH_L_DEFECT>-DEFECTCATEGORY = 1.
<ESH_L_DEFECT>-DEFECTCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_L_DEFECT-DEFECTCODEGROUP, sy-vline,
  WA_ESH_L_DEFECT-DEFECTCODEGROUPTEXT, sy-vline,
  WA_ESH_L_DEFECT-DEFECTCODETEXT, sy-vline,
  WA_ESH_L_DEFECT-DEFECTLONGTEXT, sy-vline,
  WA_ESH_L_DEFECT-DEFECTTEXT, sy-vline,
  WA_ESH_L_DEFECT-ISDELETED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESH_L_DEFECT 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_ESH_L_DEFECT 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_ESH_L_DEFECT INTO WA_ESH_L_DEFECT.


*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_ESH_L_DEFECT_STR, 
MANDT TYPE STRING,
DEFECTINTERNALID TYPE STRING,
CREATIONDATE TYPE STRING,
DEFECTCATEGORY TYPE STRING,
DEFECTCODE TYPE STRING,
DEFECTCODEGROUP TYPE STRING,
DEFECTCODEGROUPTEXT TYPE STRING,
DEFECTCODETEXT TYPE STRING,
DEFECTLONGTEXT TYPE STRING,
DEFECTTEXT TYPE STRING,
ISDELETED TYPE STRING,
LASTCHANGEDATE TYPE STRING,
MAINWORKCENTER TYPE STRING,
MAINWORKCENTERPLANT TYPE STRING,
CHANGED_BY TYPE STRING,
CREATED_BY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESH_L_DEFECT_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_ESH_L_DEFECT_STR-MANDT sy-vline 
WA_ESH_L_DEFECT_STR-DEFECTINTERNALID sy-vline 
WA_ESH_L_DEFECT_STR-CREATIONDATE sy-vline 
WA_ESH_L_DEFECT_STR-DEFECTCATEGORY sy-vline 
WA_ESH_L_DEFECT_STR-DEFECTCODE sy-vline 
WA_ESH_L_DEFECT_STR-DEFECTCODEGROUP sy-vline 
WA_ESH_L_DEFECT_STR-DEFECTCODEGROUPTEXT sy-vline 
WA_ESH_L_DEFECT_STR-DEFECTCODETEXT sy-vline 
WA_ESH_L_DEFECT_STR-DEFECTLONGTEXT sy-vline 
WA_ESH_L_DEFECT_STR-DEFECTTEXT sy-vline 
WA_ESH_L_DEFECT_STR-ISDELETED sy-vline 
WA_ESH_L_DEFECT_STR-LASTCHANGEDATE sy-vline 
WA_ESH_L_DEFECT_STR-MAINWORKCENTER sy-vline 
WA_ESH_L_DEFECT_STR-MAINWORKCENTERPLANT sy-vline 
WA_ESH_L_DEFECT_STR-CHANGED_BY sy-vline 
WA_ESH_L_DEFECT_STR-CREATED_BY sy-vline      INTO ld_text SEPARATED BY SPACE.

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