Propiedad ADO IsolationLevel
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La propiedad IsolationLevel establece o devuelve el nivel de aislamiento de un objeto Connection. El valor es un valor IsolationLevelEnum . El valor predeterminado es adXactChaos.
Nota: La configuración de IsolationLevel no funcionará hasta la próxima vez que se llame a BeginTrans.
Sintaxis
objconn.IsolationLevel
Ejemplo
<%
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
%>
IsolationLevelEnumIsolationLevelEnum
| 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. |
❮ Referencia completa de objetos de conexión