r"""Called before CREATE statements are emitted. :param target: the :class:`.SchemaObject`, such as a :class:`_schema.MetaData` or :

Begin a two-phase or XA transaction and return a transaction handle. The returned object is an instance of :class:`.TwoPhaseTransacti

Perform a bulk insert of the given list of mapping dictionaries. .. legacy:: This method is a legacy feature as of the 2.0 serie

Check the existence of a particular sequence in the database. Given a :class:`_engine.Connection` object and a string `sequence_name`

r"""Implement the ``iendswith`` operator, e.g. case insensitive version of :meth:`.ColumnOperators.endswith`. Produces a LIKE express

r"""Implement the ``istartswith`` operator, e.g. case insensitive version of :meth:`.ColumnOperators.startswith`. Produces a LIKE exp

Associate a SQL type with this mutable Python type. This establishes listeners that will detect ORM mappings against the given type,

reset the cache for this :class:`.Inspector`. Inspection methods that have data cached will emit SQL queries when next called to get

Create a new async engine instance. Arguments passed to :func:`_asyncio.create_async_engine` are mostly identical to those passed to the :fun

Return a list of all non-materialized view names available in the database. This is an internal dialect method. Applications should u

r"""Indicate that the given column-oriented attribute should be undeferred, e.g. specified within the SELECT statement of the entity a

A dictionary-based collection type with attribute-based keying. .. versionchanged:: 2.0 Renamed :data:`.attribute_mapped_collection` to :f

Determine whether this range is a contained by `other`.

Create a new :class:`_engine.URL` object. .. seealso:: :ref:`database_urls` :param drivername: the name of the database

r"""Return a callable that will execute this :class:`_ddl.ExecutableDDLElement` conditionally within an event handler. Used t

Return information about the primary key constraint on table_name`. Given a :class:`_engine.Connection`, a string ``table_nam

Return a new :func:`_expression.select` construct with redundantly named, equivalently-valued columns removed from the columns clause.

add a mapped entity to the list of result columns to be returned. .. seealso:: :meth:`_sql.Select.add_columns` - v2 comp

Return an immutable proxy for this :class:`.Properties`.

Perform a bulk save of the given list of objects. .. legacy:: This method is a legacy feature as of the 2.0 series of

Return a callable object that will produce copies of this :class:`_engine.Result` when invoked. The callable object returned is an in

apply a LIMIT to an UPDATE or DELETE statement e.g.:: stmt = t.update().values(q="hi").ext(limit(5)) this supersedes the previous a

Given a string, produce a new URL instance. The format of the URL generally follows `RFC-1738 <https://www.ietf.org/rfc/rfc1738.txt>`_, with

Quote an identifier. Subclasses should override this to provide database-dependent quoting behavior.

Indicate that the given attribute should raise an error if accessed. A relationship attribute configured with :func:`_orm.raiseload` will

Add dialect options to this INSERT/UPDATE/DELETE object. e.g.:: upd = table.update().dialect_options(mysql_limit=10) ..

Return plain or materialized view definition. This is an internal dialect method. Applications should use :meth:`_engine.Inspector.ge

Return a :class:`_query.Query` that will expire and refresh all instances as they are loaded, or reused from the current :class:`.Sess