nodum.io MongoDB Meetup (Dutch)
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This document provides an overview of MongoDB including terminology, data structures like objects and arrays, query language concepts like find, insert, update, delete, performance optimizations using indexes, and aggregate queries. It compares MongoDB to SQL and includes JSON notation examples.
![Notatie (JSON)
{ ... }[ ... ] " ... " "$..."
object
(data)
array
(lijst)
key / value
(string)
MongoDB
operator(s)
{
name : "Pepper",
age : 6,
gender : "FEMALE",
class : {
order : "Parrots",
genus : "Eclectus"
}
}
[ 1, 2, 10 ]
[ {}, {}, {} ]
"name" : "Pepper",
"weight" : 0.420,
...
"$or" : [ ]
"$gt" : ...
"$lt": ...
"$gte": ...
"$lte": ...
"$regex" : "..."
"$in" : [ , ]
"$date" : { }](https://image.slidesharecdn.com/mongodbmeetup-170309111816/85/nodum-io-MongoDB-Meetup-Dutch-16-320.jpg)
nodum.io MongoDB Meetup (Dutch)
- 2. SERVER
- 4. SERVER QUERY LANGUAGE CLIENTDOCUMENTS
- 5. CLIENT(s)
- 7. SERVER(s)
- 8. SERVER QUERY LANGUAGE CLIENTDOCUMENTS
- 10. SQL vs. MongoDB
- 11. SQL vs. MongoDB
- 12. JSON
- 13. SQL vs. MongoDB
- 14. Terminologie INSERT IGNORE JOIN / GROUP GROUPSELECT UPSERT AGGREGATE DISTINCTFIND
- 16. Notatie (JSON) { ... }[ ... ] " ... " "$..." object (data) array (lijst) key / value (string) MongoDB operator(s) { name : "Pepper", age : 6, gender : "FEMALE", class : { order : "Parrots", genus : "Eclectus" } } [ 1, 2, 10 ] [ {}, {}, {} ] "name" : "Pepper", "weight" : 0.420, ... "$or" : [ ] "$gt" : ... "$lt": ... "$gte": ... "$lte": ... "$regex" : "..." "$in" : [ , ] "$date" : { }
- 17. ID’s (_id)
- 19. Alternatieve indexes Sparse TTL (Expire) UniqueCompound Enkel indien veld gevuld Automatisch verwijderen Geen dubbele records toestaan Meerdere velden
- 20. Queries :D insert( document ) nodum: set( document ) document
- 21. Queries :D find( query, projection, sort, skip, take ) query projection sort skip take
- 22. Queries :D distinct( field, query ) field query
- 23. Queries :D delete( query ) query
- 24. Queries :D update( query, document, replaceDoc, upsert ) query document replaceDoc upsert
- 25. Queries :D aggregate( aggregateQuery ) aggregateQuery