ABAP Select data from SAP table TREXS_BULK_SEARCH_INPUT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TREXS_BULK_SEARCH_INPUT
*  INTO TABLE @DATA(IT_TREXS_BULK_SEARCH_INPUT2).
*--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_TREXS_BULK_SEARCH_INPUT INDEX 1 INTO DATA(WA_TREXS_BULK_SEARCH_INPUT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TREXS_BULK_SEARCH_INPUT>-INDEXES = 1.
<TREXS_BULK_SEARCH_INPUT>-RFC_DESTINATION = 1.
<TREXS_BULK_SEARCH_INPUT>-RESULT_FROM = 1.
<TREXS_BULK_SEARCH_INPUT>-RESULT_TO = 1.
<TREXS_BULK_SEARCH_INPUT>-QUERY_ENTRIES = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TREXS_BULK_SEARCH_INPUT-QUERY_ENTRIES2, sy-vline,
  WA_TREXS_BULK_SEARCH_INPUT-SORT_ATTRIBUTES, sy-vline,
  WA_TREXS_BULK_SEARCH_INPUT-REQ_ATTRIBUTES, sy-vline,
  WA_TREXS_BULK_SEARCH_INPUT-COMP_DESCR, sy-vline,
  WA_TREXS_BULK_SEARCH_INPUT-FREESTYLE_SEARCH_ATTRIBUTES, sy-vline,
  WA_TREXS_BULK_SEARCH_INPUT-FREESTYLE_SEARCH_ATTRIBUTES2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TREXS_BULK_SEARCH_INPUT 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_TREXS_BULK_SEARCH_INPUT 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_TREXS_BULK_SEARCH_INPUT INTO WA_TREXS_BULK_SEARCH_INPUT.


*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_TREXS_BULK_SEARCH_INPUT_STR, 
INDEXES TYPE STRING,
RFC_DESTINATION TYPE STRING,
RESULT_FROM TYPE STRING,
RESULT_TO TYPE STRING,
QUERY_ENTRIES TYPE STRING,
QUERY_ENTRIES2 TYPE STRING,
SORT_ATTRIBUTES TYPE STRING,
REQ_ATTRIBUTES TYPE STRING,
COMP_DESCR TYPE STRING,
FREESTYLE_SEARCH_ATTRIBUTES TYPE STRING,
FREESTYLE_SEARCH_ATTRIBUTES2 TYPE STRING,
FREESTYLE_SEARCH_ATTRIBUTES4 TYPE STRING,
REQUESTED_RESULTS TYPE STRING,
COUNT_ONLY TYPE STRING,
HINTS TYPE STRING,
HINTS_LONG TYPE STRING,
PLACEHOLDERS TYPE STRING,
SWITCH_ON_TRACE TYPE STRING,
TRACE_COMPONENTS TYPE STRING,
REQUESTED_LANGUAGES TYPE STRING,
REQUEST_FLAGS TYPE STRING,
REQUEST_FLAGS_L TYPE STRING,
RESULT_INDEX_NAME TYPE STRING,
GNAV_ATTRIBUTES TYPE STRING,
NUM_BEST_GNAV_ATTRIBUTES TYPE STRING,
ATTR_DIST_GLOBAL TYPE STRING,
OPT_NUM_VALUES TYPE STRING,
MAX_NUM_VALUES TYPE STRING,
ATTR_DIST_DEFINITION TYPE STRING,
QUERY_ID TYPE STRING,
KEY_FIGURES TYPE STRING,
LOCALE TYPE STRING,
MAX_DURATION TYPE STRING,
TABLE_FOR_ALL_ENTRIES TYPE STRING,
HAVING_FILTER TYPE STRING,
DISTINCT_SCOPE TYPE STRING,
COMMIT_ID TYPE STRING,
TIME_OUT TYPE STRING,
SNIPPET_ATTRIBUTES TYPE STRING,
EXPRESSIONS TYPE STRING,
SCHEMA_NAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TREXS_BULK_SEARCH_INPUT_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_TREXS_BULK_SEARCH_INPUT_STR-INDEXES sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-RFC_DESTINATION sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-RESULT_FROM sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-RESULT_TO sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-QUERY_ENTRIES sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-QUERY_ENTRIES2 sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-SORT_ATTRIBUTES sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-REQ_ATTRIBUTES sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-COMP_DESCR sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-FREESTYLE_SEARCH_ATTRIBUTES sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-FREESTYLE_SEARCH_ATTRIBUTES2 sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-FREESTYLE_SEARCH_ATTRIBUTES4 sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-REQUESTED_RESULTS sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-COUNT_ONLY sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-HINTS sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-HINTS_LONG sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-PLACEHOLDERS sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-SWITCH_ON_TRACE sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-TRACE_COMPONENTS sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-REQUESTED_LANGUAGES sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-REQUEST_FLAGS sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-REQUEST_FLAGS_L sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-RESULT_INDEX_NAME sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-GNAV_ATTRIBUTES sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-NUM_BEST_GNAV_ATTRIBUTES sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-ATTR_DIST_GLOBAL sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-OPT_NUM_VALUES sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-MAX_NUM_VALUES sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-ATTR_DIST_DEFINITION sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-QUERY_ID sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-KEY_FIGURES sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-LOCALE sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-MAX_DURATION sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-TABLE_FOR_ALL_ENTRIES sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-HAVING_FILTER sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-DISTINCT_SCOPE sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-COMMIT_ID sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-TIME_OUT sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-SNIPPET_ATTRIBUTES sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-EXPRESSIONS sy-vline 
WA_TREXS_BULK_SEARCH_INPUT_STR-SCHEMA_NAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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