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How to model a document in mongoDB- flat vs nested
The Next CEO of Stack OverflowUpdating a Nested Array with MongoDBFind in Double Nested Array MongoDBHow does database indexing work?MongoDB or CouchDB - fit for production?MongoDB vs. CassandraHow to query MongoDB with “like”?What are the options for storing hierarchical data in a relational database?How do I pass command line arguments to a Node.js program?How to decide when to use Node.js?How to exit in Node.jsHow do I drop a MongoDB database from the command line?How do you rename a MongoDB database?
Hi and thanks for helping.
I need to insert data to a MongoDB collection and I confused, which approached is better, nested or flat way.
For example:
one nested document
{
a: [
aName: 'name',
b: [
bName: 'name'
]
or many flat and small documents
a: 'name',
b: 'name'
Comments:
there isn't update query, just insert (and get)
the nested object is not huge (not overflow the limit)
my thinks for the nested way:
it's more verbose, its help to the next person that looking on the collection to understand the hierarchy
the get is simpler, and the code for get is more readable
my thinks for the flat way:
- maybe in the future should do more aggregeation on the collection, it will be easier.
node.js database mongodb
asked Mar 7 at 16:28
shkediyshkediy
114
add a comment |
Hi and thanks for helping.
I need to insert data to a MongoDB collection and I confused, which approached is better, nested or flat way.
For example:
one nested document
{
a: [
aName: 'name',
b: [
bName: 'name'
]
or many flat and small documents
a: 'name',
b: 'name'
Comments:
there isn't update query, just insert (and get)
the nested object is not huge (not overflow the limit)
my thinks for the nested way:
it's more verbose, its help to the next person that looking on the collection to understand the hierarchy
the get is simpler, and the code for get is more readable
my thinks for the flat way:
- maybe in the future should do more aggregeation on the collection, it will be easier.
node.js database mongodb
asked Mar 7 at 16:28
shkediyshkediy
114
The approach really depends on your application's use case. As this is too subjective I suggest you come back with more concrete problem.
– Mike Tung
Mar 7 at 16:29
I know my case as I wrote, in general, but I think there is a best practice and what not to do.
– shkediy
Mar 7 at 17:22
1
There are always exceptions, best practice is a guideline not a mandate
– Mike Tung
Mar 7 at 19:22
The question really is to general and "best practice" is really about "how you need to use the data". You can see Updating a Nested Array with MongoDB for more information of difficulties and general structural advice. Also Find in Double Nested Array MongoDB demonstrates difficulties in the query side. Most importantly there are "shades" here as you probably don't really mean "flat", but you also don't want "deeply nested".
– Neil Lunn
Mar 8 at 0:12
add a comment |
Hi and thanks for helping.
I need to insert data to a MongoDB collection and I confused, which approached is better, nested or flat way.
For example:
one nested document
{
a: [
aName: 'name',
b: [
bName: 'name'
]
or many flat and small documents
a: 'name',
b: 'name'
Comments:
there isn't update query, just insert (and get)
the nested object is not huge (not overflow the limit)
my thinks for the nested way:
it's more verbose, its help to the next person that looking on the collection to understand the hierarchy
the get is simpler, and the code for get is more readable
my thinks for the flat way:
- maybe in the future should do more aggregeation on the collection, it will be easier.
node.js database mongodb
asked Mar 7 at 16:28
shkediyshkediy
114
Hi and thanks for helping.
I need to insert data to a MongoDB collection and I confused, which approached is better, nested or flat way.
For example:
one nested document
{
a: [
aName: 'name',
b: [
bName: 'name'
]
or many flat and small documents
a: 'name',
b: 'name'
Comments:
there isn't update query, just insert (and get)
the nested object is not huge (not overflow the limit)
my thinks for the nested way:
it's more verbose, its help to the next person that looking on the collection to understand the hierarchy
the get is simpler, and the code for get is more readable
my thinks for the flat way:
- maybe in the future should do more aggregeation on the collection, it will be easier.
node.js database mongodb
node.js database mongodb
asked Mar 7 at 16:28
shkediyshkediy
114
asked Mar 7 at 16:28
shkediyshkediy
114
asked Mar 7 at 16:28
shkediyshkediy
114
asked Mar 7 at 16:28
shkediyshkediy
114
asked Mar 7 at 16:28
shkediyshkediy
114
114
The approach really depends on your application's use case. As this is too subjective I suggest you come back with more concrete problem.
– Mike Tung
Mar 7 at 16:29
I know my case as I wrote, in general, but I think there is a best practice and what not to do.
– shkediy
Mar 7 at 17:22
1
There are always exceptions, best practice is a guideline not a mandate
– Mike Tung
Mar 7 at 19:22
The question really is to general and "best practice" is really about "how you need to use the data". You can see Updating a Nested Array with MongoDB for more information of difficulties and general structural advice. Also Find in Double Nested Array MongoDB demonstrates difficulties in the query side. Most importantly there are "shades" here as you probably don't really mean "flat", but you also don't want "deeply nested".
– Neil Lunn
Mar 8 at 0:12
add a comment |
The approach really depends on your application's use case. As this is too subjective I suggest you come back with more concrete problem.
– Mike Tung
Mar 7 at 16:29
I know my case as I wrote, in general, but I think there is a best practice and what not to do.
– shkediy
Mar 7 at 17:22
1
There are always exceptions, best practice is a guideline not a mandate
– Mike Tung
Mar 7 at 19:22
The question really is to general and "best practice" is really about "how you need to use the data". You can see Updating a Nested Array with MongoDB for more information of difficulties and general structural advice. Also Find in Double Nested Array MongoDB demonstrates difficulties in the query side. Most importantly there are "shades" here as you probably don't really mean "flat", but you also don't want "deeply nested".
– Neil Lunn
Mar 8 at 0:12
The approach really depends on your application's use case. As this is too subjective I suggest you come back with more concrete problem.
– Mike Tung
Mar 7 at 16:29
The approach really depends on your application's use case. As this is too subjective I suggest you come back with more concrete problem.
– Mike Tung
Mar 7 at 16:29
I know my case as I wrote, in general, but I think there is a best practice and what not to do.
– shkediy
Mar 7 at 17:22
I know my case as I wrote, in general, but I think there is a best practice and what not to do.
– shkediy
Mar 7 at 17:22
1
1
There are always exceptions, best practice is a guideline not a mandate
– Mike Tung
Mar 7 at 19:22
There are always exceptions, best practice is a guideline not a mandate
– Mike Tung
Mar 7 at 19:22
The question really is to general and "best practice" is really about "how you need to use the data". You can see Updating a Nested Array with MongoDB for more information of difficulties and general structural advice. Also Find in Double Nested Array MongoDB demonstrates difficulties in the query side. Most importantly there are "shades" here as you probably don't really mean "flat", but you also don't want "deeply nested".
– Neil Lunn
Mar 8 at 0:12
The question really is to general and "best practice" is really about "how you need to use the data". You can see Updating a Nested Array with MongoDB for more information of difficulties and general structural advice. Also Find in Double Nested Array MongoDB demonstrates difficulties in the query side. Most importantly there are "shades" here as you probably don't really mean "flat", but you also don't want "deeply nested".
– Neil Lunn
Mar 8 at 0:12
add a comment |
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The approach really depends on your application's use case. As this is too subjective I suggest you come back with more concrete problem.
– Mike Tung
Mar 7 at 16:29
I know my case as I wrote, in general, but I think there is a best practice and what not to do.
– shkediy
Mar 7 at 17:22
1
There are always exceptions, best practice is a guideline not a mandate
– Mike Tung
Mar 7 at 19:22
The question really is to general and "best practice" is really about "how you need to use the data". You can see Updating a Nested Array with MongoDB for more information of difficulties and general structural advice. Also Find in Double Nested Array MongoDB demonstrates difficulties in the query side. Most importantly there are "shades" here as you probably don't really mean "flat", but you also don't want "deeply nested".
– Neil Lunn
Mar 8 at 0:12