What are naming conventions for MongoDB

Question

Is there a set of preferred naming conventions for MongoDB entitites such as databases  collections  field names   I was thinking along these lines    Databases  consist of the purpose  word in singular  and end with    db        all lower case  imagedb  resumedb  memberdb  etc  Collections  plural in lower case  images  resumes   Document fields  lowerCamelCase  e g  memberFirstName  fileName  etc

User · Answer

Naming convention for collection

In order to name a collection few precautions to be taken :

A collection with empty string (“”) is not a valid collection name.
A collection name should not contain the null character because this defines the end of collection name.
Collection name should not start with the prefix “system.” as this is reserved for internal collections.
It would be good to not contain the character “$” in the collection name as various driver available for database do not support “$” in collection name.

Things to keep in mind while creating a database name are :

A database with empty string (“”) is not a valid database name.
Database name cannot be more than 64 bytes.
Database name are case-sensitive, even on non-case-sensitive file systems. Thus it is good to keep name in lower case.
A database name cannot contain any of these characters “/, , ., “, *, <, >, :, |, ?, $,”. It also cannot contain a single space or null character.

For more information. Please check the below link : http://www.tutorial-points.com/2016/03/schema-design-and-naming-conventions-in.html

User · Answer

DATABASE   camelCase append DB on the end of name make singular  collections are plural    MongoDB states a nice example      To select a database to use  in the mongo shell  issue the use  lt db    statement  as in the following example       use myDB   use myNewDB       Content from  https   docs mongodb com manual core databases-and-collections  databases  COLLECTIONS        Lowercase names  avoids case sensitivity issues  MongoDB collection names are case sensitive    Plural  more obvious to label a collection of something as the plural  e g   files  rather than  file     No word separators  Avoids issues where different people  incorrectly  separate words  username  lt -  user name  first name  lt -    firstname   This one is up for debate according to a few people   around here but provided the argument is isolated to collection names    I don t think it should be    If you find yourself improving the   readability of your collection name by adding underscores or   camelCasing your collection name is probably too long or should use   periods as appropriate which is the standard for collection   categorization    Dot notation for higher detail collections  Gives some indication to how collections are related  For example you can be   reasonably    sure you could delete  users pagevisits  if you deleted    users      provided the people that designed the schema did a good   job          Content from  http   www tutespace com 2016 03 schema-design-and-naming-conventions-in html   For collections I m following these suggested patterns until I find official MongoDB documentation

User · Answer

Until we get SERVER-863 keeping the field names as short as possible is advisable especially where you have a lot of records   Depending on your use case  field names can have a huge impact on storage   Cant understand why this is not a higher priority for MongoDb  as this will have a positive impact on all users   If nothing else  we can start being more descriptive with our field names  without thinking twice about bandwidth  amp  storage costs   Please do vote

User · Answer

I think it s all personal preference  My preferences come from using NHibernate  in  NET  with SQL Server  so they probably differ from what others use    Databases  The application that s being used   ex  Stackoverflow Collections  Singular in name  what it s going to be a collection of  ex  Question Document fields  ex  MemberFirstName   Honestly  it doesn t matter too much  as long as it s consistent for the project  Just get to work and don t sweat the details  P

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Even if no convention is specified about this  manual references are consistently named after the referenced collection in the Mongo documentation  for one-to-one relations  The name always follows the structure  lt document gt  id   For example  in a dogs collection  a document would have manual references to external documents named like this       name   fido     owner id   5358e4249611f4a65e3068ab     race id   5358ee549611f4a65e3068ac     colour   yellow            This follows the Mongo convention of naming  id the identifier for every document

User · Answer

Keep em short  Optimizing Storage of Small Objects  SERVER-863  Silly but true  I guess pretty much the same rules that apply to relation databases should apply here  And after so many decades there is still no agreement whether RDBMS tables should be named singular or plural    MongoDB speaks JavaScript  so utilize JS naming conventions of camelCase  MongoDB official documentation mentions you may use underscores  also built-in identifier is named  id  but this may be be to indicate that  id is intended to be private  internal  never displayed or edited

[mongodb] What are naming conventions for MongoDB?

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