Helpdesk
- Total activity 157
- Last activity
- Member since
- Following 0 users
- Followed by 0 users
- Votes 0
- Subscriptions 66
Articles
Recent activity by Helpdesk Sort by recent activity-
What's a "pattern property"?
Hackolade, being built on JSON Schema, leverages this little-known but extremely powerful feature of JSON. Pattern fields function in exactly the same way as standard fields, with one exception: th...
-
Re-usable objects definitions
To facilitate the work of data modelers, Hackolade has introduced a handy feature: the ability to create once object definitions that can be re-used in multiple places. A library of definitions sta...
-
The Tao of NoSQL Data Modeling
The idea for Hackolade came from my own personal need for a data modeling tool for NoSQL databases. I searched the web, and couldn’t find one that would satisfy my needs. I tried really hard...
-
Share models via GIT repository
Hackolade does not include an integrated GIT client, but we use it in combination with https://www.sourcetreeapp.com/ An alternative is https://desktop.github.com/The team would place all Hackolade...
-
Schema modeling in a schemaless world
The JSON-based dynamic-schema nature (aka schemaless nature) of MongoDB is a fantastic opportunity for application developers: ability to start storing and accessing data with minimal effort and se...
-
User-defined custom properties
For each object in Hackolade, we've defined a set of standard properties that appear in the properties pane. But it is possible that your company wants to define and track additional properties fo...
-
Command-Line Interface (CLI)
With its Command Line Interface (CLI), Hackolade truly supports an agile development approach leveraging the flexibility of NoSQL dynamic schemas. Some Hackolade customers use this capability night...
-
Choices
Each choice attribute contains an array, with each attribute of the array representing content that will be matched against. The choice of “allOf”, “anyOf”, “oneOf”, or “noneOf” determines how the ...
-
Polymorphism
One of the great features of JSON as applicable to NoSQL and Big Data, is the ability to deal with evolving and flexible schemas, both at the level of the general document structure, and at the lev...
-
MongoDB error "not master and slaveOk=false"
If you get an error "not master and slaveOk=false" when connecting to a MongoDB instance, on a secondary member (for example, a replica set connection using a read preference of secondary or second...