Does the dialect require that temporary table DDL statements occur in
isolation from other statements? This would be the case if the creation
would cause any current transaction to get committed implicitly.
Namespace: NHibernate.DialectAssembly: NHibernate (in NHibernate.dll) Version: 3.2.0.4000 (3.2.0.4000)
Syntax
| C# |
|---|
public virtual Nullable<bool> PerformTemporaryTableDDLInIsolation() |
| Visual Basic |
|---|
Public Overridable Function PerformTemporaryTableDDLInIsolation As Nullable(Of Boolean) |
| Visual C++ |
|---|
public: virtual Nullable<bool> PerformTemporaryTableDDLInIsolation() |
Return Value
see the result matrix above.Remarks
JDBC defines a standard way to query for this information via the
{@link java.sql.DatabaseMetaData#dataDefinitionCausesTransactionCommit()}
method. However, that does not distinguish between temporary table
DDL and other forms of DDL; MySQL, for example, reports DDL causing a
transaction commit via its driver, even though that is not the case for
temporary table DDL.
Possible return values and their meanings:
- {@link Boolean#TRUE} - Unequivocally, perform the temporary table DDL in isolation.
- {@link Boolean#FALSE} - Unequivocally, do not perform the temporary table DDL in isolation.
- null - defer to the JDBC driver response in regards to {@link java.sql.DatabaseMetaData#dataDefinitionCausesTransactionCommit()}
