All Questions
23
questions
0
votes
1
answer
343
views
dynamodb composite primary key design with multiple attributes
I am trying to design a dynamodb table to store data, in which multiple attributes constitutes as unique key. In this case how do I design a DynamoDBHashKey/primary key?
Currently I am thinking of ...
- 437
-1
votes
1
answer
450
views
How to enforce type check for a value of document in MongoDB?
In RDBMS each columns has type like CHAR, INTEGER etc..
In MongoDB, adding below document in people collection, using mongo shell api:
> db.people.insert({"name": 1})
MongoDB allows ...
1
vote
2
answers
1k
views
Would mysql with sharding (Vitess) be faster than any no SQL database?
I have been trying to understand why nosql db is considered to be faster than RDBMS. I understand that nosql dbs don't follow the ACID properties but instead follows BASE principle which is the reason ...
- 431
4
votes
3
answers
5k
views
How can NoSQL databases achieve much better write throughput than some relational databases?
How is this possible? What is it about NoSQL that gives it a higher write throughput than some RDBMS? Does it boil down to scalability?
- 1,913
-3
votes
1
answer
441
views
Document database as RDBMS replacement
I'm planning to use NoSQL as primary database for all my application's data primarly because of terms like "scalability", "cloud", "big data" in mind. I don't care about "schema-less" as I use ORM ...
- 6,962
1
vote
1
answer
1k
views
CAP theorum is applicale for Replication or Sharding?
I went through CAP . After going though it, my understanding is CAP makes sense only in context
of replication (where write happens on one node i.e. Master and then replicated across slaves) not for ...
- 10.4k
0
votes
1
answer
54
views
How to model a Tree based database using MongoDB?
I have an application that will store data in a an entity called Department.For this department i will have SubDepartment1,SubDepartment2 and SubDepartment3
Now,i want to store massive data in ...
- 1,618
0
votes
0
answers
171
views
Sql + ElasticSearch or NoSQL? Also, can I do this with existing PHP code
I know that there is an abundance of articles and questions to related topic and I Have been researching them from a few days now and I am more confused then ever.
I am newbie to website world and I ...
- 1
0
votes
0
answers
88
views
SQL vs NoSql internal differences (no differences at a high level of abstraction)
Right upfront the title looks like a possible duplicate, but it is not, since stackoverflow answers only answer at a high level of abstraction, this is about internals. Furthermore most of the ...
user8072750
4
votes
1
answer
3k
views
Why Relational database cannot be scaled horizontally
I know this question has been asked quite a few times, but I have not got any satisfying answer.
I have read many blogs and most of them say that RDBMS cannot be scaled horizontally. The only way to ...
- 5,218
0
votes
1
answer
373
views
How to perform Denormalization in Hbase?
We are trying to migrate our existing RDBMS(Sql Database) system to hadoop. We are planning to use hbase for the same. But we are not getting how to denormalize sql data to store it in hbase column ...
- 439
0
votes
1
answer
759
views
Tuples in NoSQL the same as RDBMS?
I know RDBMS have the concept of tuples (that are, from what I understand, unordered rows of data).
I also learned that some NoSQL Databases use key value stores or tuples to store data.
If both ...
- 851
0
votes
1
answer
194
views
Databases (RDBMS, NoSQL) difficulty with terminology
I have some difficulty in understanding the terminology of NoSQL, RDBMS (where they belong, category etc).
From my understanding, you have a 'Database Management System', which has many types such as ...
- 833
2
votes
0
answers
29
views
How does one come to the conclusion that the data is "Unrelational"
What sort of pointers, facets, characteristics or structures should one analyse to determine that a given colletion of objects fits bets in a relational store or a Non-relational one? and further, how ...
- 11.4k
1
vote
1
answer
1k
views
MongoDB: What about recursive data
EDIT: I edited the question and separated the "MongoDB: Replicate data in documents vs. "join"" part into this topic on https://softwareengineering.stackexchange.com/
I have already played a bit with ...
- 2,402