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import asyncio
import aiomysql
async def test_example_executemany(loop):
conn = await aiomysql.connect(host='127.0.0.1', port=3306,
user='root', password='',
db='test_pymysql', loop=loop)
cur = await conn.cursor()
async with conn.cursor() as cur:
await cur.execute("DROP TABLE IF EXISTS music_style;")
await cur.execute("""CREATE TABLE music_style
(id INT,
name VARCHAR(255),
PRIMARY KEY (id));""")
await conn.commit()
# insert 3 rows one by one
await cur.execute("INSERT INTO music_style VALUES(1,'heavy metal')")
await cur.execute("INSERT INTO music_style VALUES(2,'death metal');")
await cur.execute("INSERT INTO music_style VALUES(3,'power metal');")
await conn.commit()
# insert 3 row by one long query using *executemany* method
data = [(4, 'gothic metal'), (5, 'doom metal'), (6, 'post metal')]
await cur.executemany(
"INSERT INTO music_style (id, name)"
"values (%s,%s)", data)
await conn.commit()
# fetch all insert row from table music_style
await cur.execute("SELECT * FROM music_style;")
result = await cur.fetchall()
print(result)
conn.close()
loop = asyncio.get_event_loop()
loop.run_until_complete(test_example_executemany(loop))
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