ABAP Select data from SAP table ACMDTUI_S_ALVGRID_DTDEPEND into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ACMDTUI_S_ALVGRID_DTDEPEND
*  INTO TABLE @DATA(IT_ACMDTUI_S_ALVGRID_DTDEPEND2).
*--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_ACMDTUI_S_ALVGRID_DTDEPEND INDEX 1 INTO DATA(WA_ACMDTUI_S_ALVGRID_DTDEPEND2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ACMDTUI_S_ALVGRID_DTDEPEND>-DCLSRC_NAME = 1.
<ACMDTUI_S_ALVGRID_DTDEPEND>-ROLE_ID = 1.
<ACMDTUI_S_ALVGRID_DTDEPEND>-ROLE_NAME = 1.
<ACMDTUI_S_ALVGRID_DTDEPEND>-IS_MAPPING_ROLE = 1.
<ACMDTUI_S_ALVGRID_DTDEPEND>-ROLE_DESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ACMDTUI_S_ALVGRID_DTDEPEND-RULE_ID, sy-vline,
  WA_ACMDTUI_S_ALVGRID_DTDEPEND-RESOURCE_CDSENTITY, sy-vline,
  WA_ACMDTUI_S_ALVGRID_DTDEPEND-OPERATION, sy-vline,
  WA_ACMDTUI_S_ALVGRID_DTDEPEND-IS_FUNCTIONAL_RULE, sy-vline,
  WA_ACMDTUI_S_ALVGRID_DTDEPEND-DTCONDITION_ID, sy-vline,
  WA_ACMDTUI_S_ALVGRID_DTDEPEND-ACCONDITION_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ACMDTUI_S_ALVGRID_DTDEPEND 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_ACMDTUI_S_ALVGRID_DTDEPEND 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_ACMDTUI_S_ALVGRID_DTDEPEND INTO WA_ACMDTUI_S_ALVGRID_DTDEPEND.


*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_ACMDTUI_S_ALVGRID_DTDEPEND_STR, 
DCLSRC_NAME TYPE STRING,
ROLE_ID TYPE STRING,
ROLE_NAME TYPE STRING,
IS_MAPPING_ROLE TYPE STRING,
ROLE_DESCRIPTION TYPE STRING,
RULE_ID TYPE STRING,
RESOURCE_CDSENTITY TYPE STRING,
OPERATION TYPE STRING,
IS_FUNCTIONAL_RULE TYPE STRING,
DTCONDITION_ID TYPE STRING,
ACCONDITION_ID TYPE STRING,
ACCONDITION_NAME TYPE STRING,
ACCONDITION_COLUMNTYPE TYPE STRING,
CTE_ID TYPE STRING,
CTE_NAME TYPE STRING,
CTE_VIEWTYPE TYPE STRING,
CTE_DEFINEDAT TYPE STRING,
CTE_COLUMNTYPE TYPE STRING,
CTECOLNAME_ID TYPE STRING,
CTECOLNAME_ENTITYNAME TYPE STRING,
CTECOLNAME_CTEFIELDNAME TYPE STRING,
CTECOLNAMPART_POS TYPE STRING,
CTECOLNAMPART_ENTITYNAME TYPE STRING,
CTECOLNAMPART_ENTITYFIELDNAME TYPE STRING,
CTECOLNAMPART_ENTITYASSOCNAME TYPE STRING,
CTECOLVALUE_COLNAME_ID TYPE STRING,
CTECOLVALUE_POS TYPE STRING,
CTECOLVALUE_COMPOPER TYPE STRING,
CTECOLVALUE_VALUELITERAL TYPE STRING,
CTECOLVALUE_VALUELITERALTO TYPE STRING,
CTECOLVALUE_OPTIONALELEMOPER TYPE STRING,
ASPECT_ID TYPE STRING,
ASPECT_NAME TYPE STRING,
ASPECT_TYPE TYPE STRING,
PFCGAUTH_OBJECT TYPE STRING,
PFCGAUTH_POS TYPE STRING,
PFCGAUTH_FIELD TYPE STRING,
PFCGAUTH_USEDFORMAPPING TYPE STRING,
PFCGAUTH_FIXVALUE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ACMDTUI_S_ALVGRID_DTDEPEND_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_ACMDTUI_S_ALVGRID_DTDEPEND_STR-DCLSRC_NAME sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-ROLE_ID sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-ROLE_NAME sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-IS_MAPPING_ROLE sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-ROLE_DESCRIPTION sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-RULE_ID sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-RESOURCE_CDSENTITY sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-OPERATION sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-IS_FUNCTIONAL_RULE sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-DTCONDITION_ID sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-ACCONDITION_ID sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-ACCONDITION_NAME sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-ACCONDITION_COLUMNTYPE sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTE_ID sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTE_NAME sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTE_VIEWTYPE sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTE_DEFINEDAT sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTE_COLUMNTYPE sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTECOLNAME_ID sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTECOLNAME_ENTITYNAME sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTECOLNAME_CTEFIELDNAME sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTECOLNAMPART_POS sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTECOLNAMPART_ENTITYNAME sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTECOLNAMPART_ENTITYFIELDNAME sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTECOLNAMPART_ENTITYASSOCNAME sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTECOLVALUE_COLNAME_ID sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTECOLVALUE_POS sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTECOLVALUE_COMPOPER sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTECOLVALUE_VALUELITERAL sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTECOLVALUE_VALUELITERALTO sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-CTECOLVALUE_OPTIONALELEMOPER sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-ASPECT_ID sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-ASPECT_NAME sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-ASPECT_TYPE sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-PFCGAUTH_OBJECT sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-PFCGAUTH_POS sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-PFCGAUTH_FIELD sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-PFCGAUTH_USEDFORMAPPING sy-vline 
WA_ACMDTUI_S_ALVGRID_DTDEPEND_STR-PFCGAUTH_FIXVALUE sy-vline      INTO ld_text SEPARATED BY SPACE.

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