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How do I check the difference, in seconds, between two dates?
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# You could also pass datetime.time object in this part and convert it to string.
time_start = str('09:00:00')
time_end = str('18:00:00')
# Then get the difference here.
diff = datetime.strptime(time_end, date_format) - datetime.strptime(time_start, date_format)
# Get the time in hours i.e. ...
Rails auto-assigning id that already exists
... am guessing at your sequence name "company_id_seq", table name "company", and column name "id" ... please replace them with the correct ones. You can get the sequence name with SELECT pg_get_serial_sequence('tablename', 'columname'); or look at the table definition with \d tablename.
An alternate ...
Remove Primary Key in MySQL
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Note that you have a composite PRIMARY KEY which covers all three columns and id is not guaranteed to be unique.
If it happens to be unique, you can make it to be a PRIMARY KEY and AUTO_INCREMENT again:
ALTER TABLE user_customer_permission MODIFY id INT NOT NULL PRIMARY KEY AUTO_INCREMENT;
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How to detect Windows 64-bit platform with .NET?
...ntion = CallingConvention.Winapi)]
public extern static IntPtr LoadLibrary(string libraryName);
[DllImport("kernel32", SetLastError = true, CallingConvention = CallingConvention.Winapi)]
public extern static IntPtr GetProcAddress(IntPtr hwnd, string procedureName);
private delegate bool IsWow64Pro...
How to send email attachments?
... smtp = smtplib.SMTP(server)
smtp.sendmail(send_from, send_to, msg.as_string())
smtp.close()
It's much the same as the first example... But it should be easier to drop in.
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Find the index of a dict within a list, by matching the dict's value
...answered Dec 8 '10 at 20:03
toklandtokland
58.5k1212 gold badges124124 silver badges159159 bronze badges
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What are best practices for multi-language database design? [closed]
...guage database? To create localized table for every table is making design and querying complex, in other case to add column for each language is simple but not dynamic, please help me to understand what is the best choose for enterprise applications
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how to use ng-option to set default value of select element
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ng-option directive is somewhat complicated and confusing on its syntax. I think the flexibility to bind objects has made it a bit complicated. The way I try to remember this is that whenever I am using an object, I explicitly indicate what properties to use for the va...
How do I browse an old revision of a Subversion repository through the web view?
...and it does). I've been told many times it's not possible. Note that the string mentioned must be right after the repo root in the URL, then you can put subdirs of the repo after it.
– rmeador
Mar 16 '09 at 17:27
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Convert UTC date time to local date time
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Append 'UTC' to the string before converting it to a date in javascript:
var date = new Date('6/29/2011 4:52:48 PM UTC');
date.toString() // "Wed Jun 29 2011 09:52:48 GMT-0700 (PDT)"
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