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ADO IsolationLevel Property

Complete Connection Object Reference

The IsolationLevel property sets or returns the isolation level of a Connection object. The value is an IsolationLevelEnum value. Default is adXactChaos.

Note: The IsolationLevel settings will not work until next time BeginTrans is called.

Syntax

objconn.IsolationLevel

Example

<%
set conn=Server.CreateObject("ADODB.Connection")
conn.Provider="Microsoft.Jet.OLEDB.4.0"
conn.IsolationLevel=adXactIsolated
conn.Open(Server.Mappath("northwind.mdb"))

response.write(conn.IsolationLevel)

conn.Close
%>

IsolationLevelEnum

Constant	Value	Description
adXactUnspecified	-1	Cannot use the specified isolation level, because the provider is using a different isolation level, and that level cannot be determined.
adXactChaos	16	Cannot overwrite higher level transactions.
adXactBrowse	256	Can view uncommitted changes in other transactions.
adXactReadUncommitted	256	Same as adXactBrowse.
adXactCursorStability	4096	Can view committed changes in other transactions.
adXactReadCommitted	4096	Same as adXactCursorStability.
adXactRepeatableRead	65536	Cannot see changes in other transactions, but you can requery
adXactIsolated	1048576	Your transactions are isolated from all other transactions.
adXactSerializable	1048576	Same as adXactIsolated.