Question

We want to record all db query into log table, is it possible?

Answer 1

From a SQL Server perspective……

As others have suggested, SQL Server Profiler is certainly one way to go but you’re going to incur a resource hit from doing so. Should you choose this method you absolutely must implement it as a Server Side Trace rather than via the GUI.

You may also have some success monitoring, recording the contents of the Dynamic Management Views (DMV) for things such as query execution statistics.

You’ll want to look at DMV’s such as:

• sys.dm_exec_query_stats
• sys.dm_exec_sql_text
• sys.dm_exec_query_plan

For example, here is a query that can be used to identify the poorest performing top 20 SQL queries by CPU consumption. Not exactly what you are after but it does demonstrate how to use the DMV’s that you would be interested in.

SELECT TOP 20
    qs.sql_handle,
    qs.execution_count,
    qs.total_worker_time AS Total_CPU,
    total_CPU_inSeconds = --Converted from microseconds
        qs.total_worker_time/1000000,
    average_CPU_inSeconds = --Converted from microseconds
        (qs.total_worker_time/1000000) / qs.execution_count,
    qs.total_elapsed_time,
    total_elapsed_time_inSeconds = --Converted from microseconds
        qs.total_elapsed_time/1000000,
   st.text,
   qp.query_plan
FROM
    sys.dm_exec_query_stats AS qs
    CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st
    CROSS apply sys.dm_exec_query_plan (qs.plan_handle) AS qp
ORDER BY qs.total_worker_time DESC