56 lines
2.4 KiB
Python
56 lines
2.4 KiB
Python
#------------------------------------------------------------------------------
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# Copyright (c) 2020, 2022, Oracle and/or its affiliates.
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#
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# This software is dual-licensed to you under the Universal Permissive License
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# (UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl and Apache License
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# 2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
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# either license.
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#
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# If you elect to accept the software under the Apache License, Version 2.0,
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# the following applies:
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#------------------------------------------------------------------------------
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#------------------------------------------------------------------------------
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# sharding_number_key.py
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#
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# Demonstrates how to use sharding keys with a sharded database.
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# The sample schema provided does not include support for running this demo. A
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# sharded database must first be created. Information on how to create a
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# sharded database can be found in the documentation:
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# https://www.oracle.com/pls/topic/lookup?ctx=dblatest&id=SHARD
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#------------------------------------------------------------------------------
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import oracledb
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import sample_env
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# this script is currently only supported in python-oracledb thick mode
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oracledb.init_oracle_client(lib_dir=sample_env.get_oracle_client())
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pool = oracledb.create_pool(user=sample_env.get_main_user(),
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password=sample_env.get_main_password(),
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dsn=sample_env.get_connect_string(), min=1, max=5,
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increment=1)
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def connect_and_display(sharding_key):
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print("Connecting with sharding key:", sharding_key)
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with pool.acquire(shardingkey=[sharding_key]) as conn:
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cursor = conn.cursor()
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cursor.execute("select sys_context('userenv', 'db_name') from dual")
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name, = cursor.fetchone()
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print("--> connected to database", name)
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connect_and_display(100)
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connect_and_display(167)
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