ABAP Select data from SAP table CMDQLTYTECHRULE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMDQLTYTECHRULE
*  INTO TABLE @DATA(IT_CMDQLTYTECHRULE2).
*--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_CMDQLTYTECHRULE INDEX 1 INTO DATA(WA_CMDQLTYTECHRULE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMDQLTYTECHRULE>-MANDT = 1.
<CMDQLTYTECHRULE>-MDQUALITYBUSINESSRULEUUID = 1.
<CMDQLTYTECHRULE>-MDQUALITYBUSINESSRULE = 1.
<CMDQLTYTECHRULE>-MDQLTYBUSINESSOBJECTTYPECODE = 1.
<CMDQLTYTECHRULE>-MDQLTYTECHNICALRULEUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMDQLTYTECHRULE-MDQLTYTECHNICALRULESCOPEUUID, sy-vline,
  WA_CMDQLTYTECHRULE-MDQLTYTECHNICALRULECNDNUUID, sy-vline,
  WA_CMDQLTYTECHRULE-MDQLTYTECHNICALRULESCOPE, sy-vline,
  WA_CMDQLTYTECHRULE-MDQLTYTECHNICALRULECONDITION, sy-vline,
  WA_CMDQLTYTECHRULE-MDQLTYTECHNICALRULESCOPESTATUS, sy-vline,
  WA_CMDQLTYTECHRULE-MDQLTYTECHNICALRULECNDNSTATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMDQLTYTECHRULE 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_CMDQLTYTECHRULE 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_CMDQLTYTECHRULE INTO WA_CMDQLTYTECHRULE.


*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_CMDQLTYTECHRULE_STR, 
MANDT TYPE STRING,
MDQUALITYBUSINESSRULEUUID TYPE STRING,
MDQUALITYBUSINESSRULE TYPE STRING,
MDQLTYBUSINESSOBJECTTYPECODE TYPE STRING,
MDQLTYTECHNICALRULEUUID TYPE STRING,
MDQLTYTECHNICALRULESCOPEUUID TYPE STRING,
MDQLTYTECHNICALRULECNDNUUID TYPE STRING,
MDQLTYTECHNICALRULESCOPE TYPE STRING,
MDQLTYTECHNICALRULECONDITION TYPE STRING,
MDQLTYTECHNICALRULESCOPESTATUS TYPE STRING,
MDQLTYTECHNICALRULECNDNSTATUS TYPE STRING,
MDQLTYTECHRULECNDNCRITICALITY TYPE STRING,
MDQLTYTECHRULESCPCRITICALITY TYPE STRING,
MDQLTYTECHRULECNDNSTATUSNAME TYPE STRING,
MDQLTYTECHRULESCOPESTATUSNAME TYPE STRING,
MDQLTYTECHRULESCPDCSNTBLUUID TYPE STRING,
MDQLTYTECHRULECNDNDCSNTBLUUID TYPE STRING,
MDQLTYTECHRULESCPDECISIONTABLE TYPE STRING,
MDQLTYTECHRULESCPDCSNTBLSTS TYPE STRING,
MDQLTYTECHSCPDCSNTBLSTSNAME TYPE STRING,
MDQLTYTECHSCPDCSNTBLCRITLTY TYPE STRING,
MDQLTYTECHRULECNDNDCSNTABLE TYPE STRING,
MDQLTYTECHRULECNDNDCSNTBLSTS TYPE STRING,
MDQLTYTECHCNDNDCSNTBLSTSNAME TYPE STRING,
MDQLTYTECHCNDNDCSNTBLCRITLTY TYPE STRING,
MDQLTYTECHRULESCOPEHASDCSNTBL TYPE STRING,
MDQLTYTECHRULECNDNHASDCSNTBL TYPE STRING,
MDQLTYRULEIMPLMTNSTATUS TYPE STRING,
MDQLTYRULEIMPLMTNSTATUSNAME TYPE STRING,
MDQLTYRULEIMPLMTNSTSCRITLTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMDQLTYTECHRULE_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_CMDQLTYTECHRULE_STR-MANDT sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQUALITYBUSINESSRULEUUID sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQUALITYBUSINESSRULE sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYBUSINESSOBJECTTYPECODE sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHNICALRULEUUID sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHNICALRULESCOPEUUID sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHNICALRULECNDNUUID sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHNICALRULESCOPE sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHNICALRULECONDITION sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHNICALRULESCOPESTATUS sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHNICALRULECNDNSTATUS sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHRULECNDNCRITICALITY sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHRULESCPCRITICALITY sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHRULECNDNSTATUSNAME sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHRULESCOPESTATUSNAME sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHRULESCPDCSNTBLUUID sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHRULECNDNDCSNTBLUUID sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHRULESCPDECISIONTABLE sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHRULESCPDCSNTBLSTS sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHSCPDCSNTBLSTSNAME sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHSCPDCSNTBLCRITLTY sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHRULECNDNDCSNTABLE sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHRULECNDNDCSNTBLSTS sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHCNDNDCSNTBLSTSNAME sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHCNDNDCSNTBLCRITLTY sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHRULESCOPEHASDCSNTBL sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYTECHRULECNDNHASDCSNTBL sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYRULEIMPLMTNSTATUS sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYRULEIMPLMTNSTATUSNAME sy-vline 
WA_CMDQLTYTECHRULE_STR-MDQLTYRULEIMPLMTNSTSCRITLTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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