Join William Lyon for an in-depth discussion in this video Query data, part of Database Clinic: Neo4J.
- [Instructor] Now lets verify that our data…was imported correctly by writing some queries.…The first thing we can do is inspect the schema…by executing call db.schema.…This will inspect the data that we have on the graph…and show us the graph data model…of the data we have created.…And we can see this matches the data model…that we defined in ERAS,…with a node for population prediction,…a node label for county,…and a for county relationship connecting them.…
Lets query the data to inspect a few data points.…First lets see if we can find San Mateo county.…So lets match on the county mode…where the name property is equal to San Mateo.…And I'm going to hit the control enter key…here to execute a multiple line cipher statement.…And we can see here the San Mateo county node.…We can double click on these to expand out,…and we can see we have a number of population prediction…nodes connected to San Mateo county.…
Lets see if we can answer the question, "How many…"population predictions do we have for San Mateo county?"…
Author
William Lyon
Released
9/19/2017- Strengths and weaknesses of Neo4j
- Data modeling
- Creating a database
- Joining data sets
- Modeling data for joining data sets
- Searching a database
- CRUD operations
- Performing calculations
Skill Level Intermediate
Duration
Views
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Introduction
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Welcome1m 17s
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The Database Clinic series1m 22s
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1. Neo4j in Five Minutes
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A brief overview of Neo4j3m 23s
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2. Create a Database
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Data modeling3m 52s
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Creating a database3m 56s
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Import data10m 27s
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Query data3m 12s
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3. Join Two Datasets
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Join datasets2m 50s
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Import data6m 26s
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4. Search a Database
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Database search1m 51s
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Query the database5m 22s
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Finalize the database query3m 34s
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5. Create, Read, Update, and Delete Operations
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CRUD operations2m 31s
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Create operations in Neo4j8m 36s
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Update operations in Neo4j8m 11s
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Delete operations in Neo4j3m 44s
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Read operations in Neo4j3m 43s
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6. Averages and Calculations
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Calculations1m 59s
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Update the data model3m 36s
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Refactor the data model10m 22s
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Import data for calculations5m 52s
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Perform calculations7m 55s
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Conclusion
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Next steps1m 44s
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Video: Query data