ABAP Select data from SAP table ESH_S_CO_QLOG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_S_CO_QLOG
*  INTO TABLE @DATA(IT_ESH_S_CO_QLOG2).
*--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_ESH_S_CO_QLOG INDEX 1 INTO DATA(WA_ESH_S_CO_QLOG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_S_CO_QLOG>-MANDT = 1.
<ESH_S_CO_QLOG>-SEARCH_REQ_ID = 1.
<ESH_S_CO_QLOG>-SUBQUERY_ID = 1.
<ESH_S_CO_QLOG>-EXEC_TSTP = 1.
<ESH_S_CO_QLOG>-EXEC_USER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_S_CO_QLOG-CONNECTOR_ID, sy-vline,
  WA_ESH_S_CO_QLOG-REQUEST, sy-vline,
  WA_ESH_S_CO_QLOG-START_INDEX, sy-vline,
  WA_ESH_S_CO_QLOG-END_INDEX, sy-vline,
  WA_ESH_S_CO_QLOG-SEARCH_DATE, sy-vline,
  WA_ESH_S_CO_QLOG-TERM_ACTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESH_S_CO_QLOG 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_ESH_S_CO_QLOG 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_ESH_S_CO_QLOG INTO WA_ESH_S_CO_QLOG.


*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_ESH_S_CO_QLOG_STR, 
MANDT TYPE STRING,
SEARCH_REQ_ID TYPE STRING,
SUBQUERY_ID TYPE STRING,
EXEC_TSTP TYPE STRING,
EXEC_USER TYPE STRING,
CONNECTOR_ID TYPE STRING,
REQUEST TYPE STRING,
START_INDEX TYPE STRING,
END_INDEX TYPE STRING,
SEARCH_DATE TYPE STRING,
TERM_ACTION TYPE STRING,
QUERY_HKY TYPE STRING,
QUERY_EXT_HKY TYPE STRING,
TIME_QUERY_GROSS TYPE STRING,
TIME_TREX_GROSS TYPE STRING,
TIME_KERNEL_NET TYPE STRING,
HITS TYPE STRING,
HITS_ALL TYPE STRING,
TREX_EXC_RC TYPE STRING,
TREX_EXC_TXT TYPE STRING,
EXEC_MODE TYPE STRING,
CONNECTOR_COUNT TYPE STRING,
ASYNC TYPE STRING,
HANDLE_NAME TYPE STRING,
REFERENCE_QUERY TYPE STRING,
REFERENCE_HKY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESH_S_CO_QLOG_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_ESH_S_CO_QLOG_STR-MANDT sy-vline 
WA_ESH_S_CO_QLOG_STR-SEARCH_REQ_ID sy-vline 
WA_ESH_S_CO_QLOG_STR-SUBQUERY_ID sy-vline 
WA_ESH_S_CO_QLOG_STR-EXEC_TSTP sy-vline 
WA_ESH_S_CO_QLOG_STR-EXEC_USER sy-vline 
WA_ESH_S_CO_QLOG_STR-CONNECTOR_ID sy-vline 
WA_ESH_S_CO_QLOG_STR-REQUEST sy-vline 
WA_ESH_S_CO_QLOG_STR-START_INDEX sy-vline 
WA_ESH_S_CO_QLOG_STR-END_INDEX sy-vline 
WA_ESH_S_CO_QLOG_STR-SEARCH_DATE sy-vline 
WA_ESH_S_CO_QLOG_STR-TERM_ACTION sy-vline 
WA_ESH_S_CO_QLOG_STR-QUERY_HKY sy-vline 
WA_ESH_S_CO_QLOG_STR-QUERY_EXT_HKY sy-vline 
WA_ESH_S_CO_QLOG_STR-TIME_QUERY_GROSS sy-vline 
WA_ESH_S_CO_QLOG_STR-TIME_TREX_GROSS sy-vline 
WA_ESH_S_CO_QLOG_STR-TIME_KERNEL_NET sy-vline 
WA_ESH_S_CO_QLOG_STR-HITS sy-vline 
WA_ESH_S_CO_QLOG_STR-HITS_ALL sy-vline 
WA_ESH_S_CO_QLOG_STR-TREX_EXC_RC sy-vline 
WA_ESH_S_CO_QLOG_STR-TREX_EXC_TXT sy-vline 
WA_ESH_S_CO_QLOG_STR-EXEC_MODE sy-vline 
WA_ESH_S_CO_QLOG_STR-CONNECTOR_COUNT sy-vline 
WA_ESH_S_CO_QLOG_STR-ASYNC sy-vline 
WA_ESH_S_CO_QLOG_STR-HANDLE_NAME sy-vline 
WA_ESH_S_CO_QLOG_STR-REFERENCE_QUERY sy-vline 
WA_ESH_S_CO_QLOG_STR-REFERENCE_HKY sy-vline      INTO ld_text SEPARATED BY SPACE.

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