The argument can be any valid expression that resolves to one of the following numeric or string identifiers:. The value to return on encountering an error during conversion, including unsupported type conversions.

The arguments can be any valid expression. The value to return if the input is null or missing. You cannot convert a double value whose truncated value is less than the minimum integer value or is greater than the maximum integer value.

You cannot convert a decimal value whose truncated value is less than the minimum integer value or is greater than the maximum integer value.

mongodb string to date

You cannot convert a long value that is less than the minimum integer value or is greater than the maximum integer value. The string value must be a base 10 integer e.

You cannot convert a string value of a float or decimal or non-base 10 number e. The string value must be of a base 10 numeric value e. You cannot convert a string value of a non-base 10 number e. You cannot convert a decimal value whose value is less than the minimum double value or is greater than the maximum double value. You cannot convert a double value whose truncated value is less than the minimum long value or is greater than the maximum long value.

You cannot convert a decimal value whose truncated value is less than the minimum long value or is greater than the maximum long value.

The string value must be of a base 10 long e. Returns a date that corresponds to the number of milliseconds represented by the truncated double value. Returns a date that corresponds to the number of milliseconds represented by the truncated decimal value. Returns a date that corresponds to the number of milliseconds represented by the long value.

Create a collection orders with the following documents:. The following aggregation operation on the orders collection converts the price to a decimal:.

Returns the boolean value. Double Returns true if not zero. Returns 1 for true. Returns NumberDecimal "1" for true. Returns NumberLong 1 for true. Positive number corresponds to the number of milliseconds since Jan 1, Negative number corresponds to the number of milliseconds before Jan 1, Decimal Returns a date that corresponds to the number of milliseconds represented by the truncated decimal value.

Long Returns a date that corresponds to the number of milliseconds represented by the long value. String Returns a date that corresponds to the date string. The following table lists some conversion to date examples: Example Results. You cannot convert a string value that is not a hexadecimal string of length Double Returns the double value as a string.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.

Himss membership

Is there a way to pass DateFormatter or something to Date. You can use the javascript in the second link provided by Ravi Khakhkhar or you are going to have to perform some string manipulation to convert your orginal string as some of the special characters in your original format aren't being recognised as valid delimeters but once you do that, you can use "new".

Here's some links that you may find useful regarding modification of the data within the mongo shell. In my case I have succeed with the following solution for converting field ClockInTime from ClockTime collection from string to Date type :. If MongoDB version does not have the native operators that do the conversion, you would need to manually iterate the cursor returned by the find method by either using the forEach method or the cursor method next to access the documents.

For improved performance especially when dealing with large collections, take advantage of using the Bulk API for bulk updates as you will be sending the operations to the server in batches of say which gives you a better performance as you are not sending every request to the server, just once in every requests.

The next example applies to the new MongoDB version 3. I had some strings in the MongoDB Stored wich had to be reformated to a proper and valid dateTime field in the mongodb. How about using a library like momentjs by writing a script like this:. Learn more.

Eeg dataset github

Converting string to date in mongodb Ask Question. Asked 7 years, 10 months ago. Active 1 year, 2 months ago. Viewed 85k times. Ashh Active Oldest Votes. MetaFight 1, 13 13 silver badges 28 28 bronze badges. Mark Hillick Mark Hillick 6, 1 1 gold badge 14 14 silver badges 22 22 bronze badges.

I reloaded the data with external client - stackoverflow. Cool, thanks for letting me know. If your feel my answer was helpful, can you also upvote it please? In my case I have succeed with the following solution for converting field ClockInTime from ClockTime collection from string to Date type : db. ClockInTime ; db. Ciges Ciges 9 9 silver badges 15 15 bronze badges. I used - new ISODate Thanks for the suggestion. Using MongoDB 4. I tried it on a 3. I was trying it on 3.

Pascalsz Pascalsz 9 9 silver badges 10 10 bronze badges. Jthorpe Jthorpe 7, 2 2 gold badges 28 28 silver badges 44 44 bronze badges. Ashh Ashh By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Is there a way to pass DateFormatter or something to Date.

You can use the javascript in the second link provided by Ravi Khakhkhar or you are going to have to perform some string manipulation to convert your orginal string as some of the special characters in your original format aren't being recognised as valid delimeters but once you do that, you can use "new". Here's some links that you may find useful regarding modification of the data within the mongo shell. In my case I have succeed with the following solution for converting field ClockInTime from ClockTime collection from string to Date type :.

If MongoDB version does not have the native operators that do the conversion, you would need to manually iterate the cursor returned by the find method by either using the forEach method or the cursor method next to access the documents.

For improved performance especially when dealing with large collections, take advantage of using the Bulk API for bulk updates as you will be sending the operations to the server in batches of say which gives you a better performance as you are not sending every request to the server, just once in every requests.

The next example applies to the new MongoDB version 3.

Parliamo di calcio

I had some strings in the MongoDB Stored wich had to be reformated to a proper and valid dateTime field in the mongodb.

How about using a library like momentjs by writing a script like this:. Learn more. Converting string to date in mongodb Ask Question. Asked 7 years, 10 months ago. Active 1 year, 2 months ago. Viewed 85k times. Ashh Active Oldest Votes. MetaFight 1, 13 13 silver badges 28 28 bronze badges.

Mark Hillick Mark Hillick 6, 1 1 gold badge 14 14 silver badges 22 22 bronze badges. I reloaded the data with external client - stackoverflow. Cool, thanks for letting me know. If your feel my answer was helpful, can you also upvote it please?

The village of cardosa, municipality of buccino (sa) campania

In my case I have succeed with the following solution for converting field ClockInTime from ClockTime collection from string to Date type : db. ClockInTime ; db. Ciges Ciges 9 9 silver badges 15 15 bronze badges.

I used - new ISODate Thanks for the suggestion. Using MongoDB 4. I tried it on a 3. I was trying it on 3. Pascalsz Pascalsz 9 9 silver badges 10 10 bronze badges. Jthorpe Jthorpe 7, 2 2 gold badges 28 28 silver badges 44 44 bronze badges. Ashh Ashh Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time.

Post navigation

Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. What does an appropriate db. The replaced value being the field itself concerted to an ISODate object. Learn more.

mongodb string to date

How do I convert a property in MongoDB from text to date type? Ask Question. Asked 9 years, 10 months ago. Active 10 months ago. Viewed 32k times. Abhijit Bashetti 5, 6 6 gold badges 22 22 silver badges 37 37 bronze badges.

Converting string to date in MongoDB?

Jeff Fritz Jeff Fritz 9, 7 7 gold badges 36 36 silver badges 52 52 bronze badges. I would like to execute this statement in the Mongo shell as an in-place update. Active Oldest Votes. Kristina - Phew, this saved a ton of my time and thanks to the author for asking such question.

Just as a side-note and I stand to be corrected but if you're converting from a time stamp value, a string won't work. It has to be a long int. I'm not sure why not - tried it out with v2. Crungmungus that's true, only dates in the form that the date constructor takes will be converted properly.

See developer.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.

I am using MongoDB 3. This should work:. Not related with your specific case, but with the generic solution to this BSON error Solve this problem with:. Learn more. Asked 2 years, 6 months ago. Active 1 month ago. Viewed 2k times. Regards Kris. Oleksandr Stefanovskyi 5 5 silver badges 16 16 bronze badges.

Active Oldest Votes. Buzz Moschetti Buzz Moschetti 3, 2 2 gold badges 14 14 silver badges 21 21 bronze badges. Pedro H. Sign up or log in Sign up using Google. Sign up using Facebook.

mongodb string to date

Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Cryptocurrency-Based Life Forms. Q2 Community Roadmap. Featured on Meta. Community and Moderator guidelines for escalating issues via new response…. Feedback on Q2 Community Roadmap.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. The former would be the most simple approach. Take advantage of using the Bulk API for bulk updates which offer better performance as you will be sending the operations to the server in batches of say which gives you a better performance as you are not sending every request to the server, just once in every requests.

The next example applies to the new MongoDB version 3. And should you wish to query using the aggregation framework, run the following pipeline to get the desired result. All the above answers use cursors but however, mongodb always recommend to use aggregation pipeline.

More information about the type of date here and here. Learn more. How can convert string to date with mongo aggregation? Ask Question.

Asked 4 years, 2 months ago. Active 7 months ago. Viewed 15k times. Neil Lunn k 28 28 gold badges silver badges bronze badges. There is no way to convert string to date in aggregation pipeline, while date to string could be.

JohnnyHK: it work so well, i dont recognize it. Active Oldest Votes. I know this is an oldie, but db.

MongoDB: Date() - Store Date As String

No problem! The code snippet was super helpful for something I'm doing right now. Thank YOU for putting it together! N Raghu N Raghu 2 2 gold badges 8 8 silver badges 21 21 bronze badges. Hi Is there any way to search the date as string column as an actual date column without converting it? If we have documents: db. Sign up or log in Sign up using Google. Sign up using Facebook.

Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Cryptocurrency-Based Life Forms. Q2 Community Roadmap.The BSON specification is located at bsonspec. ObjectIds are small, likely unique, fast to generate, and ordered. ObjectId values are 12 bytes in length, consisting of:.

Subscribe to RSS

While the BSON format itself is little-endian, the timestamp and counter values are big-endian, with the most significant bytes appearing first in the byte sequence. This also applies to documents inserted through update operations with upsert: true. While ObjectId values should increase over time, they are not necessarily monotonic. This is because they:. This makes it possible to store most international characters in BSON strings with ease.

This internal timestamp type is a 64 bit value where:. Within a single mongod instance, timestamp values are always unique. In replication, the oplog has a ts field. The values in this field reflect the operation time, which uses a BSON timestamp value. For most cases, in application development, you will want to use the BSON date type. See Date for more information.

When inserting a document that contains top-level fields with empty timestamp values, MongoDB replaces the empty timestamp values with the current timestamp value, with the following exception. Running db. The server has replaced the empty timestamp value for ts with the timestamp value at time of insert. This results in a representable date range of about million years into the past and future.

BSON Date type is signed. Construct a Date using the new Date constructor in the mongo shell:. Return the month portion of the Date value; months are zero-indexed, so that January is month 0 :.

Important While ObjectId values should increase over time, they are not necessarily monotonic. This is because they: Only contain one second of temporal resolution, so ObjectId values created within the same second do not have a guaranteed ordering, and Are generated by clients, which may have differing system clocks.

See also ObjectId. Example Insert a document with an empty timestamp value: copy. Example Construct a Date using the new Date constructor in the mongo shell: copy. Example Return the Date value as string: copy.

Example Return the month portion of the Date value; months are zero-indexed, so that January is month 0 : copy. Given strings using UTF-8 character sets, using sort on strings will be reasonably correct. Prior to version 2. Because indexes are not recreated when upgrading, please re-index if you created an index on Date values with an earlier version, and dates before are relevant to your application.


Comments

Leave a Reply

Your email address will not be published. Required fields are marked *