ABAP Select data from SAP table DDCDS_MIGV2_CHK_RESULT_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DDCDS_MIGV2_CHK_RESULT_ALV 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 DDCDS_MIGV2_CHK_RESULT_ALV. 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 DDCDS_MIGV2_CHK_RESULT_ALV 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_DDCDS_MIGV2_CHK_RESULT_ALV TYPE STANDARD TABLE OF DDCDS_MIGV2_CHK_RESULT_ALV,
      WA_DDCDS_MIGV2_CHK_RESULT_ALV TYPE DDCDS_MIGV2_CHK_RESULT_ALV,
      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: <DDCDS_MIGV2_CHK_RESULT_ALV> TYPE DDCDS_MIGV2_CHK_RESULT_ALV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DDCDS_MIGV2_CHK_RESULT_ALV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DDCDS_MIGV2_CHK_RESULT_ALV
  INTO TABLE IT_DDCDS_MIGV2_CHK_RESULT_ALV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DDCDS_MIGV2_CHK_RESULT_ALV
*  INTO TABLE @DATA(IT_DDCDS_MIGV2_CHK_RESULT_ALV2).
*--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_DDCDS_MIGV2_CHK_RESULT_ALV INDEX 1 INTO DATA(WA_DDCDS_MIGV2_CHK_RESULT_ALV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DDCDS_MIGV2_CHK_RESULT_ALV ASSIGNING <DDCDS_MIGV2_CHK_RESULT_ALV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DDCDS_MIGV2_CHK_RESULT_ALV>-DDLNAME = 1.
<DDCDS_MIGV2_CHK_RESULT_ALV>-STOBNAME = 1.
<DDCDS_MIGV2_CHK_RESULT_ALV>-VIEWNAME = 1.
<DDCDS_MIGV2_CHK_RESULT_ALV>-TYPE = 1.
<DDCDS_MIGV2_CHK_RESULT_ALV>-AS4LOCAL = 1.

ENDLOOP.

LOOP AT IT_DDCDS_MIGV2_CHK_RESULT_ALV INTO WA_DDCDS_MIGV2_CHK_RESULT_ALV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DDCDS_MIGV2_CHK_RESULT_ALV-OVERALL_STATUS, sy-vline,
  WA_DDCDS_MIGV2_CHK_RESULT_ALV-DDLS_STOB_NAME_CHECK, sy-vline,
  WA_DDCDS_MIGV2_CHK_RESULT_ALV-DECIMALSHIFT_CHECK, sy-vline,
  WA_DDCDS_MIGV2_CHK_RESULT_ALV-EXTERNAL_VIEW_BASE_CHECK, sy-vline,
  WA_DDCDS_MIGV2_CHK_RESULT_ALV-ANNO_BUFFERING_CHECK, sy-vline,
  WA_DDCDS_MIGV2_CHK_RESULT_ALV-ANNO_CASEJOIN_CHECK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DDCDS_MIGV2_CHK_RESULT_ALV 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_DDCDS_MIGV2_CHK_RESULT_ALV 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_DDCDS_MIGV2_CHK_RESULT_ALV INTO WA_DDCDS_MIGV2_CHK_RESULT_ALV.


*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_DDCDS_MIGV2_CHK_RESULT_ALV_STR, 
DDLNAME TYPE STRING,
STOBNAME TYPE STRING,
VIEWNAME TYPE STRING,
TYPE TYPE STRING,
AS4LOCAL TYPE STRING,
OVERALL_STATUS TYPE STRING,
DDLS_STOB_NAME_CHECK TYPE STRING,
DECIMALSHIFT_CHECK TYPE STRING,
EXTERNAL_VIEW_BASE_CHECK TYPE STRING,
ANNO_BUFFERING_CHECK TYPE STRING,
ANNO_CASEJOIN_CHECK TYPE STRING,
NOT_SUPPORTED_DATA_TYPES TYPE STRING,
SELECT_STAR_CHECK TYPE STRING,
ANNO_COMPAREFILTER_CHECK_INITL TYPE STRING,
ANNO_CLIENTDEPENDENT_CHECK TYPE STRING,
CURR_CONV_TYPE_INPUT_CHECK TYPE STRING,
EXTENSION_STAR_CHECK TYPE STRING,
ANNO_COMPAREFILTER_CHECK_FALSE TYPE STRING,
WHERE_USE_SQL_VIEW_CHECK TYPE STRING,
ELEMENT_PREFIX_CHECK TYPE STRING,
CURR_QUAN_ARITH_EXPR_CHECK TYPE STRING,
TYPE_COMPATIBILITY_CHECK TYPE STRING,
LITERAL_COMPATIBILITY_CHECK TYPE STRING,
CASE_SEMANTIC_RESULT_CHECK TYPE STRING,
CASE_MAX_DATATYPE_CHECK TYPE STRING,
NAMELIST_CHECK TYPE STRING,
AS_CHECK TYPE STRING,
ASSOC_ON_NAME_RES_CHECK TYPE STRING,
ASSOC_ALIAS_CHECK TYPE STRING,
TSTMP_CURRENT_UTCTSTMP_CHECK TYPE STRING,
ANNO_DDLS_DDLA_CHECK TYPE STRING,
ANNO_DDLS_VDM_CHECK TYPE STRING,
ACTIVE_EXTEND_EXISTS TYPE STRING,
SHLPORIGIN TYPE STRING,
C0_RELEASED_STATE TYPE STRING,
C1_RELEASED_STATE TYPE STRING,
C2_RELEASED_STATE TYPE STRING,
C1_RELEASED_STATE_SCP TYPE STRING,
DEVCLASS TYPE STRING,
DLVUNIT TYPE STRING,
COMPONENT_ID TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_TIMESTAMP TYPE STRING,
TABCOL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DDCDS_MIGV2_CHK_RESULT_ALV_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_DDCDS_MIGV2_CHK_RESULT_ALV_STR-DDLNAME sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-STOBNAME sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-VIEWNAME sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-TYPE sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-AS4LOCAL sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-OVERALL_STATUS sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-DDLS_STOB_NAME_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-DECIMALSHIFT_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-EXTERNAL_VIEW_BASE_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-ANNO_BUFFERING_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-ANNO_CASEJOIN_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-NOT_SUPPORTED_DATA_TYPES sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-SELECT_STAR_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-ANNO_COMPAREFILTER_CHECK_INITL sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-ANNO_CLIENTDEPENDENT_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-CURR_CONV_TYPE_INPUT_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-EXTENSION_STAR_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-ANNO_COMPAREFILTER_CHECK_FALSE sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-WHERE_USE_SQL_VIEW_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-ELEMENT_PREFIX_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-CURR_QUAN_ARITH_EXPR_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-TYPE_COMPATIBILITY_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-LITERAL_COMPATIBILITY_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-CASE_SEMANTIC_RESULT_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-CASE_MAX_DATATYPE_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-NAMELIST_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-AS_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-ASSOC_ON_NAME_RES_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-ASSOC_ALIAS_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-TSTMP_CURRENT_UTCTSTMP_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-ANNO_DDLS_DDLA_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-ANNO_DDLS_VDM_CHECK sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-ACTIVE_EXTEND_EXISTS sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-SHLPORIGIN sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-C0_RELEASED_STATE sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-C1_RELEASED_STATE sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-C2_RELEASED_STATE sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-C1_RELEASED_STATE_SCP sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-DEVCLASS sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-DLVUNIT sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-COMPONENT_ID sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-CREATED_BY sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-CREATED_TIMESTAMP sy-vline 
WA_DDCDS_MIGV2_CHK_RESULT_ALV_STR-TABCOL sy-vline      INTO ld_text SEPARATED BY SPACE.

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