ABAP Select data from SAP table QLVIEW_DDLPARSER_ERROR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QLVIEW_DDLPARSER_ERROR
*  INTO TABLE @DATA(IT_QLVIEW_DDLPARSER_ERROR2).
*--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_QLVIEW_DDLPARSER_ERROR INDEX 1 INTO DATA(WA_QLVIEW_DDLPARSER_ERROR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QLVIEW_DDLPARSER_ERROR>-TYPE = 1.
<QLVIEW_DDLPARSER_ERROR>-MESSAGE_CLS = 1.
<QLVIEW_DDLPARSER_ERROR>-MESSAGE_NO = 1.
<QLVIEW_DDLPARSER_ERROR>-LINE = 1.
<QLVIEW_DDLPARSER_ERROR>-COLUMN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QLVIEW_DDLPARSER_ERROR-ARG0, sy-vline,
  WA_QLVIEW_DDLPARSER_ERROR-ARG1, sy-vline,
  WA_QLVIEW_DDLPARSER_ERROR-ARG2, sy-vline,
  WA_QLVIEW_DDLPARSER_ERROR-ARG3, sy-vline,
  WA_QLVIEW_DDLPARSER_ERROR-PRIO, sy-vline,
  WA_QLVIEW_DDLPARSER_ERROR-SEVERITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QLVIEW_DDLPARSER_ERROR 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_QLVIEW_DDLPARSER_ERROR 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_QLVIEW_DDLPARSER_ERROR INTO WA_QLVIEW_DDLPARSER_ERROR.


*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_QLVIEW_DDLPARSER_ERROR_STR, 
TYPE TYPE STRING,
MESSAGE_CLS TYPE STRING,
MESSAGE_NO TYPE STRING,
LINE TYPE STRING,
COLUMN TYPE STRING,
ARG0 TYPE STRING,
ARG1 TYPE STRING,
ARG2 TYPE STRING,
ARG3 TYPE STRING,
PRIO TYPE STRING,
SEVERITY TYPE STRING,
HIDDEN TYPE STRING,
DDLNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QLVIEW_DDLPARSER_ERROR_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_QLVIEW_DDLPARSER_ERROR_STR-TYPE sy-vline 
WA_QLVIEW_DDLPARSER_ERROR_STR-MESSAGE_CLS sy-vline 
WA_QLVIEW_DDLPARSER_ERROR_STR-MESSAGE_NO sy-vline 
WA_QLVIEW_DDLPARSER_ERROR_STR-LINE sy-vline 
WA_QLVIEW_DDLPARSER_ERROR_STR-COLUMN sy-vline 
WA_QLVIEW_DDLPARSER_ERROR_STR-ARG0 sy-vline 
WA_QLVIEW_DDLPARSER_ERROR_STR-ARG1 sy-vline 
WA_QLVIEW_DDLPARSER_ERROR_STR-ARG2 sy-vline 
WA_QLVIEW_DDLPARSER_ERROR_STR-ARG3 sy-vline 
WA_QLVIEW_DDLPARSER_ERROR_STR-PRIO sy-vline 
WA_QLVIEW_DDLPARSER_ERROR_STR-SEVERITY sy-vline 
WA_QLVIEW_DDLPARSER_ERROR_STR-HIDDEN sy-vline 
WA_QLVIEW_DDLPARSER_ERROR_STR-DDLNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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