79 lines
2.6 KiB
Python
79 lines
2.6 KiB
Python
#------------------------------------------------------------------------------
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# Copyright (c) 2016, 2023, 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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# query.py
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#
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# Demonstrates different ways of fetching rows from a query.
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#------------------------------------------------------------------------------
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import oracledb
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import sample_env
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# determine whether to use python-oracledb thin mode or thick mode
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if not sample_env.get_is_thin():
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oracledb.init_oracle_client(lib_dir=sample_env.get_oracle_client())
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connection = oracledb.connect(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())
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sql = """select * from SampleQueryTab
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where id < 6
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order by id"""
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with connection.cursor() as cursor:
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print("Get all rows via an iterator")
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for result in cursor.execute(sql):
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print(result)
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print()
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print("Query one row at a time")
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cursor.execute(sql)
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row = cursor.fetchone()
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print(row)
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row = cursor.fetchone()
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print(row)
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print()
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print("Fetch many rows")
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cursor.execute(sql)
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res = cursor.fetchmany(3)
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print(res)
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print()
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print("Fetch all rows")
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cursor.execute(sql)
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res = cursor.fetchall()
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print(res)
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print()
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print("Fetch each row as a Dictionary")
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cursor.execute(sql)
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columns = [col.name for col in cursor.description]
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cursor.rowfactory = lambda *args: dict(zip(columns, args))
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for row in cursor:
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print(row)
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