- [Instructor] The final CRUD operation…that we'll complete is the read task.…We'll need to read each line from the database…and print it out to the console.…So, let's first define a query…to read each line from the database.…This is going to be a match statement.…We need to specify the graph pattern…that we want to match on.…In this case, it's just a line node.…We don't need to specify a predicate or a where clause,…because we need to match on every line…and simply return the text property,…which we'll alias to text, and the line number,…which we'll alias to linenum.…
Let's execute that cell to bring that into scope,…and now what we want to do is create a session object…to connect to Neo4j.…We'll grab the beginning time stamp, and we need to read…each line from the database, so we will call session.run,…passing in our read_lines_query.…Result is an iterator, so we need to iterate…over each record in the result, printing out each line.…
We will reference the line number and text values…from the record object, using this subscript notation.…
Author
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
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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: Read operations in Neo4j