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Learning Apache Cassandra

You're reading from   Learning Apache Cassandra Managing fault-tolerant, scalable data with high performance

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Product type Paperback
Published in Apr 2017
Publisher
ISBN-13 9781787127296
Length 360 pages
Edition 2nd Edition
Languages
Concepts
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Author (1):
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Sandeep Yarabarla Sandeep Yarabarla
Author Profile Icon Sandeep Yarabarla
Sandeep Yarabarla
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Toc

Table of Contents (15) Chapters Close

Preface 1. Getting Up and Running with Cassandra FREE CHAPTER 2. The First Table 3. Organizing Related Data 4. Beyond Key-Value Lookup 5. Establishing Relationships 6. Denormalizing Data for Maximum Performance 7. Expanding Your Data Model 8. Collections, Tuples, and User-Defined Types 9. Aggregating Time-Series Data 10. How Cassandra Distributes Data 11. Cassandra Multi-Node Cluster 12. Application Development Using the Java Driver 13. Peeking under the Hood 14. Authentication and Authorization

Inserting data


For our status-sharing application, the first thing we'll want any user to do is to create an account. We'll ask them to choose a username column, enter their email column, and pick a password column; our business logic will be responsible for ensuring that the entries are valid and for encrypting the password appropriately. At that point, we'll be ready to insert the account information as a new row in the users table:

 INSERT INTO "users"
 ("username", "email", "encrypted_password")
 VALUES (
   'alice',
   'alice@gmail.com',
   0x8914977ed729792e403da53024c6069a9158b8c4
 );

 

In the previous statement, which should be familiar to anyone who has used an SQL database, we provide the following information:

  • We want to add a row to the users table
  • We'll be adding data to three columns in that row: username, email, and encrypted_password
  • Finally, we provide the values to insert into those columns in the same order that the column names were listed previously

Note

Does whitespace matter...

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