sql server - How to set transaction isolation level using classic ASP? -

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i have classic asp page , want set transaction isolation level read uncommitted. using this documentation have came following: 

set conn = getconnection conn.isolationlevel = adxactreaduncommitted  'conn.begintrans  'conn.committrans  set cmd = server.createobject("adodb.command") set cmd.activeconnection = conn  cmd.commandtype = adcmdtext cmd.commandtext = "insert [dbo].[a] ([isolationlevel]) select case transaction_isolation_level  when 0 'unspecified'  when 1 'readuncommitted'  when 2 'readcommitted'  when 3 'repeatable'  when 4 'serializable'  when 5 'snapshot' end transaction_isolation_level  sys.dm_exec_sessions  session_id = @@spid" set rs = cmd.execute()  response.write(conn.isolationlevel)

the last response.write gives me correctly 256 (read uncommitted) when query table got readcommitted records.

could tell doing wrong?

and here body of getconnection function:

function getconnection()     dim strconnectiondotnet : strconnectiondotnet = "data source=..."     set getconnection = server.createobject("adodb.connection")     getconnection.connectionstring="provider=sqloledb;" & strconnectiondotnet     getconnection.open end function

as said in documentation:

note: isolationlevel settings not work until next time begintrans called.

it kind of strange, need following:

conn.begintrans ... sql statement executed here conn.committrans

even thought t-sql statement select. also, after conn.committrans still using default isolation level (the 1 specified in context of database).


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