Usage Sample
''''''''''''
.. code:: python
import sqlexecx as db
if __name__ == '__main__':
db.init('test.db', driver='sqlite3', show_sql=True, debug=True)
# or
db.init("postgres://user:password@127.0.0.1:5432/testdb", driver='psycopg2', pool_size=5, show_sql=True, debug=True)
# or
db.init(host='127.0.0.1', port='5432', user='xxx', password='xxx', database='testdb', show_sql=True, driver='psycopg2')
effected_rowcount = db.insert(table='person', name='zhangsan', age=15)
# if driver is 'pymysql' or 'mysql.connector' of MySQL, the select_key is 'SELECT LAST_INSERT_ID()'
select_key = "SELECT currval('person_id_seq')"
id = db.save(select_key=select_key, table='person', name='lisi', age=26)
id = db.save_sql(select_key, 'INSERT INTO person(name, age) VALUES(?,?)', 'wangwu', 38)
id = db.save_sql(select_key, 'INSERT INTO person(name, age) VALUES(:name, :age)', name='zhaoliu', age=45)
count = db.get('select count(1) from person')
# result: 4
count = db.sql('select count(1) from person').get()
# result: 4
persons = db.select('select id, name, age from person')
# result:
# (3, 'zhangsan', 15)
# (4, 'lisi', 26)
# (5, 'wangwu', 38)
# (6, 'zhaoliu', 45)
persons = db.sql('select id, name, age from person').select()
# result:
# (3, 'zhangsan', 15)
# (4, 'lisi', 26)
# (5, 'wangwu', 38)
# (6, 'zhaoliu', 45)
persons = db.table('person').select('id', 'name', 'age')
# result:
# (3, 'zhangsan', 15)
# (4, 'lisi', 26)
# (5, 'wangwu', 38)
# (6, 'zhaoliu', 45)
persons = db.select_one('select id, name, age from person where name = ?', 'zhangsan')
# result:
# (3, 'zhangsan', 15)
persons = db.sql('select id, name, age from person where name = ?').select_one('zhangsan')
# result:
# (3, 'zhangsan', 15)
persons = db.select('select id, name, age from person where name = :name', name='zhangsan')
# result:
# [(3, 'zhangsan', 15)]
persons = db.sql('select id, name, age from person where name = :name').select(name='zhangsan')
# result:
# [(3, 'zhangsan', 15)]
persons = db.sql('select id, name, age from person where name = :name').param(name='zhangsan').select()
# result:
# [(3, 'zhangsan', 15)]
persons = db.table('person').where(name__eq='zhangsan').select('id', 'name', 'age')
# result:
# [(3, 'zhangsan', 15)]
persons = db.query('select id, name, age from person')
# result:
# {'id': 3, 'name': 'zhangsan', 'age': 15}
# {'id': 4, 'name': 'lisi', 'age': 26}
# {'id': 5, 'name': 'wangwu', 'age': 38}
# {'id': 6, 'name': 'zhaoliu', 'age': 45}
persons = db.sql('select id, name, age from person').query()
# result:
# {'id': 3, 'name': 'zhangsan', 'age': 15}
# {'id': 4, 'name': 'lisi', 'age': 26}
# {'id': 5, 'name': 'wangwu', 'age': 38}
# {'id': 6, 'name': 'zhaoliu', 'age': 45}
persons = db.query_one('select id, name, age from person where name = ?', 'zhangsan')
# result:
# {'id': 3, 'name': 'zhangsan', 'age': 15}
persons = db.sql('select id, name, age from person where name = ?').query_one('zhangsan')
# result:
# {'id': 3, 'name': 'zhangsan', 'age': 15}
persons = db.query('select id, name, age from person where name = :name', name='zhangsan')
# result:
# [{'id': 3, 'name': 'zhangsan', 'age': 15}]
persons = db.sql('select id, name, age from person where name = :name').query(name='zhangsan')
# result:
# [{'id': 3, 'name': 'zhangsan', 'age': 15}]
persons = db.sql('select id, name, age from person where name = :name').param(name='zhangsan').query()
# result:
# [{'id': 3, 'name': 'zhangsan', 'age': 15}]
persons = db.table('person').columns('id', 'name', 'age').where(name='zhangsan').query()
# result:
# [{'id': 3, 'name': 'zhangsan', 'age': 15}]
effected_rowcount = db.table('person').where(name='zhangsan').update(name='xxx', age=45)
effected_rowcount = db.table('person').where(id=6).delete()
count = db.table('person').count())
# result: 3
effected_rowcount = db.execute('delete from person where id = :id', id=5)
count = db.get('select count(1) from person')
# result: 2
effected_rowcount = db.sql('delete from person where id = ?').execute(4)
count = db.sql('select count(1) from person').get()
# result: 1
effected_rowcount = db.sql('delete from person where id = :id').execute(id=3)
count = db.sql('select count(1) from person').get()
# result: 0
# select data save as csv
db.sql('select name, age from person WHERE name = ?').load('张三').to_csv('test.csv')
db.sql('select name, age from person WHERE name = ?').param('张三').to_csv('test.csv')
# insert from csv
db.table('person').insert_from_csv('test.csv')
# select data transform to DataFrame of pandas
df = db.sql('select name, age from person WHERE name = :name').load(name='张三').to_df()
df = db.sql('select name, age from person WHERE name = :name').param(name='张三').to_df()
# insert from DataFrame of pandas
db.table('person').insert_from_df(dataframe)
# select data save as json
db.sql('select name, age from person WHERE name = ?').load('张三').to_json('test.json')
db.sql('select name, age from person WHERE name = ?').param('张三').to_json('test.json')
# insert from json
db.table('person').insert_from_json('test.json')
db.close()
Transaction
'''''''''''
.. code:: python
from sqlexecx import trans
@trans
def test_transaction():
insert_func(....)
update_func(....)
def test_transaction2():
with trans():
insert_func(....)
update_func(....)
If you want to operate MySQL database like Mybatis, may be you need MySqlx: https://pypi.org/project/mysqlx
If you want to operate PostgreSQL database like Mybatis, may be you need PgSqlx: https://pypi.org/project/pgsqlx
If you want to execute SQL like Mybatis, may be you need sqlx-batis: https://pypi.org/project/sqlx-batis
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"description": "Usage Sample\n''''''''''''\n\n.. code:: python\n\n import sqlexecx as db\n\n if __name__ == '__main__':\n db.init('test.db', driver='sqlite3', show_sql=True, debug=True)\n\n # or\n db.init(\"postgres://user:password@127.0.0.1:5432/testdb\", driver='psycopg2', pool_size=5, show_sql=True, debug=True)\n\n # or\n db.init(host='127.0.0.1', port='5432', user='xxx', password='xxx', database='testdb', show_sql=True, driver='psycopg2')\n\n effected_rowcount = db.insert(table='person', name='zhangsan', age=15)\n\n # if driver is 'pymysql' or 'mysql.connector' of MySQL, the select_key is 'SELECT LAST_INSERT_ID()'\n select_key = \"SELECT currval('person_id_seq')\"\n\n id = db.save(select_key=select_key, table='person', name='lisi', age=26)\n\n id = db.save_sql(select_key, 'INSERT INTO person(name, age) VALUES(?,?)', 'wangwu', 38)\n\n id = db.save_sql(select_key, 'INSERT INTO person(name, age) VALUES(:name, :age)', name='zhaoliu', age=45)\n\n count = db.get('select count(1) from person')\n # result: 4\n\n count = db.sql('select count(1) from person').get()\n # result: 4\n\n persons = db.select('select id, name, age from person')\n # result:\n # (3, 'zhangsan', 15)\n # (4, 'lisi', 26)\n # (5, 'wangwu', 38)\n # (6, 'zhaoliu', 45)\n\n persons = db.sql('select id, name, age from person').select()\n # result:\n # (3, 'zhangsan', 15)\n # (4, 'lisi', 26)\n # (5, 'wangwu', 38)\n # (6, 'zhaoliu', 45)\n\n persons = db.table('person').select('id', 'name', 'age')\n # result:\n # (3, 'zhangsan', 15)\n # (4, 'lisi', 26)\n # (5, 'wangwu', 38)\n # (6, 'zhaoliu', 45)\n\n persons = db.select_one('select id, name, age from person where name = ?', 'zhangsan')\n # result:\n # (3, 'zhangsan', 15)\n\n persons = db.sql('select id, name, age from person where name = ?').select_one('zhangsan')\n # result:\n # (3, 'zhangsan', 15)\n\n persons = db.select('select id, name, age from person where name = :name', name='zhangsan')\n # result:\n # [(3, 'zhangsan', 15)]\n\n persons = db.sql('select id, name, age from person where name = :name').select(name='zhangsan')\n # result:\n # [(3, 'zhangsan', 15)]\n\n persons = db.sql('select id, name, age from person where name = :name').param(name='zhangsan').select()\n # result:\n # [(3, 'zhangsan', 15)]\n\n persons = db.table('person').where(name__eq='zhangsan').select('id', 'name', 'age')\n # result:\n # [(3, 'zhangsan', 15)]\n\n persons = db.query('select id, name, age from person')\n # result:\n # {'id': 3, 'name': 'zhangsan', 'age': 15}\n # {'id': 4, 'name': 'lisi', 'age': 26}\n # {'id': 5, 'name': 'wangwu', 'age': 38}\n # {'id': 6, 'name': 'zhaoliu', 'age': 45}\n\n persons = db.sql('select id, name, age from person').query()\n # result:\n # {'id': 3, 'name': 'zhangsan', 'age': 15}\n # {'id': 4, 'name': 'lisi', 'age': 26}\n # {'id': 5, 'name': 'wangwu', 'age': 38}\n # {'id': 6, 'name': 'zhaoliu', 'age': 45}\n\n persons = db.query_one('select id, name, age from person where name = ?', 'zhangsan')\n # result:\n # {'id': 3, 'name': 'zhangsan', 'age': 15}\n\n persons = db.sql('select id, name, age from person where name = ?').query_one('zhangsan')\n # result:\n # {'id': 3, 'name': 'zhangsan', 'age': 15}\n\n persons = db.query('select id, name, age from person where name = :name', name='zhangsan')\n # result:\n # [{'id': 3, 'name': 'zhangsan', 'age': 15}]\n\n persons = db.sql('select id, name, age from person where name = :name').query(name='zhangsan')\n # result:\n # [{'id': 3, 'name': 'zhangsan', 'age': 15}]\n\n persons = db.sql('select id, name, age from person where name = :name').param(name='zhangsan').query()\n # result:\n # [{'id': 3, 'name': 'zhangsan', 'age': 15}]\n\n persons = db.table('person').columns('id', 'name', 'age').where(name='zhangsan').query()\n # result:\n # [{'id': 3, 'name': 'zhangsan', 'age': 15}]\n\n effected_rowcount = db.table('person').where(name='zhangsan').update(name='xxx', age=45)\n\n effected_rowcount = db.table('person').where(id=6).delete()\n count = db.table('person').count())\n # result: 3\n\n effected_rowcount = db.execute('delete from person where id = :id', id=5)\n count = db.get('select count(1) from person')\n # result: 2\n\n effected_rowcount = db.sql('delete from person where id = ?').execute(4)\n count = db.sql('select count(1) from person').get()\n # result: 1\n\n effected_rowcount = db.sql('delete from person where id = :id').execute(id=3)\n count = db.sql('select count(1) from person').get()\n # result: 0\n\n # select data save as csv\n db.sql('select name, age from person WHERE name = ?').load('\u5f20\u4e09').to_csv('test.csv')\n\n db.sql('select name, age from person WHERE name = ?').param('\u5f20\u4e09').to_csv('test.csv')\n\n # insert from csv\n db.table('person').insert_from_csv('test.csv')\n\n # select data transform to DataFrame of pandas\n df = db.sql('select name, age from person WHERE name = :name').load(name='\u5f20\u4e09').to_df()\n\n df = db.sql('select name, age from person WHERE name = :name').param(name='\u5f20\u4e09').to_df()\n\n # insert from DataFrame of pandas\n db.table('person').insert_from_df(dataframe)\n\n # select data save as json\n db.sql('select name, age from person WHERE name = ?').load('\u5f20\u4e09').to_json('test.json')\n\n db.sql('select name, age from person WHERE name = ?').param('\u5f20\u4e09').to_json('test.json')\n\n # insert from json\n db.table('person').insert_from_json('test.json')\n\n db.close()\n\nTransaction\n'''''''''''\n\n.. code:: python\n\n from sqlexecx import trans\n\n @trans\n def test_transaction():\n insert_func(....)\n update_func(....)\n\n\n def test_transaction2():\n with trans():\n insert_func(....)\n update_func(....)\n\n\nIf you want to operate MySQL database like Mybatis, may be you need MySqlx: https://pypi.org/project/mysqlx\n\nIf you want to operate PostgreSQL database like Mybatis, may be you need PgSqlx: https://pypi.org/project/pgsqlx\n\nIf you want to execute SQL like Mybatis, may be you need sqlx-batis: https://pypi.org/project/sqlx-batis\n\n\n",
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