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aloha-mysql-query-builder
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Aloha MySQL Query Builder 是一个 Python 库,用于简化 MySQL 查询的构建,支持构建常见的 SQL 查询语句,包括 SELECT、INSERT、UPDATE、DELETE 等。该库提供了一个简洁的 API,使得在 Python 中构建和执行 MySQL 查询变得更加方便。
SELECT
, INSERT
, UPDATE
, DELETE
等常见 SQL 查询类型。WHERE
, ORDER BY
, GROUP BY
, LIMIT
等 SQL 子句。IF EXISTS
)。SELECT ONE
)。你可以通过 pip
安装 Aloha MySQL Query Builder:
pip install aloha-mysql-query-builder
from aloha_mysql.query_builder import AlohaQueryBuilder
query = AlohaQueryBuilder('users')
query = query.select('id', 'name').where('age', '>', 18)
sql = str(query)
print(sql) # 输出: SELECT id, name FROM users WHERE age > '18'
query = AlohaQueryBuilder('users')
query = query.insert(id=1, name='John', age=30)
sql = str(query)
print(sql) # 输出: INSERT INTO users (id, name, age) VALUES ('1', 'John', '30')
query = AlohaQueryBuilder('users')
query = query.update(name='John Doe', age=31).where('id', '=', 1)
sql = str(query)
print(sql) # 输出: UPDATE users SET name = 'John Doe', age = '31' WHERE id = '1'
query = AlohaQueryBuilder('users')
query = query.delete().where('age', '<', 18)
sql = str(query)
print(sql) # 输出: DELETE FROM users WHERE age < '18'
query = AlohaQueryBuilder('users')
query = query.insert_batch(
['id', 'name', 'age'], # 明确列名
[(1, 'Alice', 22), (2, 'Bob', 24)]
)
sql = str(query)
print(sql) # 输出: INSERT INTO users (id, name, age) VALUES ('1', 'Alice', '22'), ('2', 'Bob', '24')
query = AlohaQueryBuilder('users')
query = query.update_batch(
{'name': 'John Doe', 'age': 31},
'id',
[1, 2, 3]
)
sql = str(query)
print(sql) # 输出: UPDATE users SET name = 'John Doe', age = '31' WHERE id IN ('1', '2', '3')
query = AlohaQueryBuilder('users')
query = query.select('id', 'name').where('age', '>', 18).order_by('age', 'DESC')
sql = str(query)
print(sql) # 输出: SELECT id, name FROM users WHERE age > '18' ORDER BY age DESC
query = AlohaQueryBuilder('users')
query = query.select('age', 'COUNT(*)').group_by('age')
sql = str(query)
print(sql) # 输出: SELECT age, COUNT(*) FROM users GROUP BY age
query = AlohaQueryBuilder('users')
query = query.select('id', 'name').limit(10)
sql = str(query)
print(sql) # 输出: SELECT id, name FROM users LIMIT 10
select_one
方法query = AlohaQueryBuilder('users')
query = query.select_one().select('id', 'name').where('id', '=', 1)
sql = str(query)
print(sql) # 输出: SELECT id, name FROM users WHERE id = '1' LIMIT 1
if_exist
方法query = AlohaQueryBuilder('users')
query = query.if_exist('age > 18')
sql = str(query)
print(sql) # 输出: IF EXISTS (SELECT 1 FROM users WHERE age > 18)
运行 pytest
来执行单元测试:
pytest tests/
欢迎提交 Issues 或 Pull Requests,参与改进本项目。
Aloha MySQL Query Builder 使用 MIT 许可证。详细信息请参阅 LICENSE 文件。
FAQs
A MySQL query builder for Python
We found that aloha-mysql-query-builder demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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