Inserting a Python Datetime. Datetime Object into Mysql

Inserting a Python Datetime. Datetime Object into Mysql

I have a date column in a MySQL table. I want to insert a datetime.datetime() object into this column. What should I be using in the execute statement?

I have tried:

now = datetime.datetime(2009,5,5)

cursor.execute("INSERT INTO table
(name, id, datecolumn) VALUES (%s, %s
, %s)",("name", 4,now))

I am getting an error as: "TypeError: not all arguments converted during string formatting" What should I use instead of %s?

1

8 Answers

For a time field, use:

import time    
time.strftime('%Y-%m-%d %H:%M:%S')

I think strftime also applies to datetime.

7

You are most likely getting the TypeError because you need quotes around the datecolumn value.

Try:

now = datetime.datetime(2009, 5, 5)

cursor.execute("INSERT INTO table (name, id, datecolumn) VALUES (%s, %s, '%s')",
               ("name", 4, now))

With regards to the format, I had success with the above command (which includes the milliseconds) and with:

now.strftime('%Y-%m-%d %H:%M:%S')

Hope this helps.

2

Try using now.date() to get a Date object rather than a DateTime.

If that doesn't work, then converting that to a string should work:

now = datetime.datetime(2009,5,5)
str_now = now.date().isoformat()
cursor.execute('INSERT INTO table (name, id, datecolumn) VALUES (%s,%s,%s)', ('name',4,str_now))
1

Use Python method datetime.strftime(format), where format = '%Y-%m-%d %H:%M:%S'.

import datetime

now = datetime.datetime.utcnow()

cursor.execute("INSERT INTO table (name, id, datecolumn) VALUES (%s, %s, %s)",
               ("name", 4, now.strftime('%Y-%m-%d %H:%M:%S')))

Timezones

If timezones are a concern, the MySQL timezone can be set for UTC as follows:

cursor.execute("SET time_zone = '+00:00'")

And the timezone can be set in Python:

now = datetime.datetime.utcnow().replace(tzinfo=datetime.timezone.utc)

Alexander Ross
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Alexander Ross

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.