ABAP Select data from SAP table ESH_L_QLTYACT 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_QLTYACT 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_QLTYACT. 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_QLTYACT 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_QLTYACT TYPE STANDARD TABLE OF ESH_L_QLTYACT,
      WA_ESH_L_QLTYACT TYPE ESH_L_QLTYACT,
      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_QLTYACT> TYPE ESH_L_QLTYACT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_L_QLTYACT
*  INTO TABLE @DATA(IT_ESH_L_QLTYACT2).
*--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_QLTYACT INDEX 1 INTO DATA(WA_ESH_L_QLTYACT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_L_QLTYACT>-MANDT = 1.
<ESH_L_QLTYACT>-NOTIFICATIONACTIVITY = 1.
<ESH_L_QLTYACT>-QUALITYNOTIFICATION = 1.
<ESH_L_QLTYACT>-CREATEDBYUSER = 1.
<ESH_L_QLTYACT>-CREATIONDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_L_QLTYACT-ISBUSINESSPURPOSECOMPLETED, sy-vline,
  WA_ESH_L_QLTYACT-LASTCHANGEDATE, sy-vline,
  WA_ESH_L_QLTYACT-MATERIAL, sy-vline,
  WA_ESH_L_QLTYACT-MATERIALGROUP, sy-vline,
  WA_ESH_L_QLTYACT-MATERIALGROUPNAME, sy-vline,
  WA_ESH_L_QLTYACT-NOTIFACTIVITYCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESH_L_QLTYACT 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_QLTYACT 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_QLTYACT INTO WA_ESH_L_QLTYACT.


*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 ALPHA, internal->external for field QUALITYNOTIFICATION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_QLTYACT-QUALITYNOTIFICATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_QLTYACT-QUALITYNOTIFICATION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_QLTYACT-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_QLTYACT-MATERIAL.
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_ESH_L_QLTYACT_STR, 
MANDT TYPE STRING,
NOTIFICATIONACTIVITY TYPE STRING,
QUALITYNOTIFICATION TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
ISBUSINESSPURPOSECOMPLETED TYPE STRING,
LASTCHANGEDATE TYPE STRING,
MATERIAL TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIALGROUPNAME TYPE STRING,
NOTIFACTIVITYCODE TYPE STRING,
NOTIFACTIVITYCODEGROUP TYPE STRING,
NOTIFACTIVITYCODEGROUPTEXT TYPE STRING,
NOTIFACTIVITYCODETEXT TYPE STRING,
NOTIFACTIVITYENDDATE TYPE STRING,
NOTIFACTIVITYSTARTDATE TYPE STRING,
NOTIFACTIVITYTEXT TYPE STRING,
NOTIFICATIONITEM TYPE STRING,
NOTIFICATIONORIGIN TYPE STRING,
NOTIFICATIONTYPE TYPE STRING,
NOTIFICATIONTYPENAME TYPE STRING,
NOTIFPROCESSINGPHASE TYPE STRING,
PLANT TYPE STRING,
PLANTNAME TYPE STRING,
PRODUCTNAME TYPE STRING,
QLTYNOTIFACTIVITYLONGTEXT TYPE STRING,
USERCREATED TYPE STRING,
USERCHANGED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESH_L_QLTYACT_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_QLTYACT_STR-MANDT sy-vline 
WA_ESH_L_QLTYACT_STR-NOTIFICATIONACTIVITY sy-vline 
WA_ESH_L_QLTYACT_STR-QUALITYNOTIFICATION sy-vline 
WA_ESH_L_QLTYACT_STR-CREATEDBYUSER sy-vline 
WA_ESH_L_QLTYACT_STR-CREATIONDATE sy-vline 
WA_ESH_L_QLTYACT_STR-ISBUSINESSPURPOSECOMPLETED sy-vline 
WA_ESH_L_QLTYACT_STR-LASTCHANGEDATE sy-vline 
WA_ESH_L_QLTYACT_STR-MATERIAL sy-vline 
WA_ESH_L_QLTYACT_STR-MATERIALGROUP sy-vline 
WA_ESH_L_QLTYACT_STR-MATERIALGROUPNAME sy-vline 
WA_ESH_L_QLTYACT_STR-NOTIFACTIVITYCODE sy-vline 
WA_ESH_L_QLTYACT_STR-NOTIFACTIVITYCODEGROUP sy-vline 
WA_ESH_L_QLTYACT_STR-NOTIFACTIVITYCODEGROUPTEXT sy-vline 
WA_ESH_L_QLTYACT_STR-NOTIFACTIVITYCODETEXT sy-vline 
WA_ESH_L_QLTYACT_STR-NOTIFACTIVITYENDDATE sy-vline 
WA_ESH_L_QLTYACT_STR-NOTIFACTIVITYSTARTDATE sy-vline 
WA_ESH_L_QLTYACT_STR-NOTIFACTIVITYTEXT sy-vline 
WA_ESH_L_QLTYACT_STR-NOTIFICATIONITEM sy-vline 
WA_ESH_L_QLTYACT_STR-NOTIFICATIONORIGIN sy-vline 
WA_ESH_L_QLTYACT_STR-NOTIFICATIONTYPE sy-vline 
WA_ESH_L_QLTYACT_STR-NOTIFICATIONTYPENAME sy-vline 
WA_ESH_L_QLTYACT_STR-NOTIFPROCESSINGPHASE sy-vline 
WA_ESH_L_QLTYACT_STR-PLANT sy-vline 
WA_ESH_L_QLTYACT_STR-PLANTNAME sy-vline 
WA_ESH_L_QLTYACT_STR-PRODUCTNAME sy-vline 
WA_ESH_L_QLTYACT_STR-QLTYNOTIFACTIVITYLONGTEXT sy-vline 
WA_ESH_L_QLTYACT_STR-USERCREATED sy-vline 
WA_ESH_L_QLTYACT_STR-USERCHANGED sy-vline      INTO ld_text SEPARATED BY SPACE.

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