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author | mike bayer <mike_mp@zzzcomputing.com> | 2020-07-13 15:17:51 +0000 |
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committer | Gerrit Code Review <gerrit@bbpush.zzzcomputing.com> | 2020-07-13 15:17:51 +0000 |
commit | 99d3f173dcb0eea88871102e89cf05ce3be9b4cb (patch) | |
tree | a56131f5ea5e84af900388fe8f60483228f242a5 /lib | |
parent | 27f443f3f9930b907aa5ab336b083facf1146335 (diff) | |
parent | 28fbb0cb94ddf92a014adbfe63a15b7d0797ccee (diff) | |
download | sqlalchemy-99d3f173dcb0eea88871102e89cf05ce3be9b4cb.tar.gz |
Merge "more docs for autocommit isolation level"
Diffstat (limited to 'lib')
-rw-r--r-- | lib/sqlalchemy/dialects/mssql/base.py | 7 | ||||
-rw-r--r-- | lib/sqlalchemy/dialects/mysql/base.py | 4 | ||||
-rw-r--r-- | lib/sqlalchemy/dialects/oracle/base.py | 4 | ||||
-rw-r--r-- | lib/sqlalchemy/dialects/postgresql/base.py | 2 | ||||
-rw-r--r-- | lib/sqlalchemy/dialects/sqlite/base.py | 4 | ||||
-rw-r--r-- | lib/sqlalchemy/engine/base.py | 18 |
6 files changed, 25 insertions, 14 deletions
diff --git a/lib/sqlalchemy/dialects/mssql/base.py b/lib/sqlalchemy/dialects/mssql/base.py index 06ea80b9e..427dd0e1f 100644 --- a/lib/sqlalchemy/dialects/mssql/base.py +++ b/lib/sqlalchemy/dialects/mssql/base.py @@ -342,11 +342,12 @@ Valid values for ``isolation_level`` include: * ``SERIALIZABLE`` * ``SNAPSHOT`` - specific to SQL Server -.. versionadded:: 1.1 support for isolation level setting on Microsoft - SQL Server. - .. versionadded:: 1.2 added AUTOCOMMIT isolation level setting +.. seealso:: + + :ref:`dbapi_autocommit` + Nullability ----------- MSSQL has support for three levels of column nullability. The default diff --git a/lib/sqlalchemy/dialects/mysql/base.py b/lib/sqlalchemy/dialects/mysql/base.py index d3d7a8cce..d4ffcabd5 100644 --- a/lib/sqlalchemy/dialects/mysql/base.py +++ b/lib/sqlalchemy/dialects/mysql/base.py @@ -158,7 +158,9 @@ MySQLdb, MySQL-Client, MySQL-Connector Python, and PyMySQL. Using it, the MySQL connection will return true for the value of ``SELECT @@autocommit;``. -.. versionadded:: 1.1 - added support for the AUTOCOMMIT isolation level. +.. seealso:: + + :ref:`dbapi_autocommit` AUTO_INCREMENT Behavior ----------------------- diff --git a/lib/sqlalchemy/dialects/oracle/base.py b/lib/sqlalchemy/dialects/oracle/base.py index 34c665fbe..6f4df8068 100644 --- a/lib/sqlalchemy/dialects/oracle/base.py +++ b/lib/sqlalchemy/dialects/oracle/base.py @@ -68,6 +68,10 @@ Valid values for ``isolation_level`` include: as well as the notion of a default isolation level, currently harcoded to "READ COMMITTED". +.. seealso:: + + :ref:`dbapi_autocommit` + Identifier Casing ----------------- diff --git a/lib/sqlalchemy/dialects/postgresql/base.py b/lib/sqlalchemy/dialects/postgresql/base.py index c2d9af4d2..5cef5d929 100644 --- a/lib/sqlalchemy/dialects/postgresql/base.py +++ b/lib/sqlalchemy/dialects/postgresql/base.py @@ -117,6 +117,8 @@ Valid values for ``isolation_level`` include: .. seealso:: + :ref:`dbapi_autocommit` + :ref:`psycopg2_isolation_level` :ref:`pg8000_isolation_level` diff --git a/lib/sqlalchemy/dialects/sqlite/base.py b/lib/sqlalchemy/dialects/sqlite/base.py index a203e786e..0475a397e 100644 --- a/lib/sqlalchemy/dialects/sqlite/base.py +++ b/lib/sqlalchemy/dialects/sqlite/base.py @@ -212,6 +212,10 @@ by *not even emitting BEGIN* until the first write operation. degree than is often feasible. See the section :ref:`pysqlite_serializable` for techniques to work around this behavior. +.. seealso:: + + :ref:`dbapi_autocommit` + SAVEPOINT Support ---------------------------- diff --git a/lib/sqlalchemy/engine/base.py b/lib/sqlalchemy/engine/base.py index 2d672099b..d60f14f31 100644 --- a/lib/sqlalchemy/engine/base.py +++ b/lib/sqlalchemy/engine/base.py @@ -212,16 +212,14 @@ class Connection(Connectable): :param autocommit: Available on: Connection, statement. When True, a COMMIT will be invoked after execution when executed in 'autocommit' mode, i.e. when an explicit - transaction is not begun on the connection. Note that DBAPI - connections by default are always in a transaction - SQLAlchemy uses - rules applied to different kinds of statements to determine if - COMMIT will be invoked in order to provide its "autocommit" feature. - Typically, all INSERT/UPDATE/DELETE statements as well as - CREATE/DROP statements have autocommit behavior enabled; SELECT - constructs do not. Use this option when invoking a SELECT or other - specific SQL construct where COMMIT is desired (typically when - calling stored procedures and such), and an explicit - transaction is not in progress. + transaction is not begun on the connection. Note that this + is **library level, not DBAPI level autocommit**. The DBAPI + connection will remain in a real transaction unless the + "AUTOCOMMIT" isolation level is used. + + .. deprecated:: 1.4 The library-level "autocommit" feature is being + removed in favor of database driver "autocommit" which is + now widely available. See the section :ref:`dbapi_autocommit`. :param compiled_cache: Available on: Connection. A dictionary where :class:`.Compiled` objects |