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Introduction to Apache Hive


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In this introduction to Apache Hive the following topics are covered:

1. Hive Origin
2. Hive philosophy and architecture
3. Hive vs. RDBMS
4. HiveQL and Hive Shell
5. Managing tables
6. Data types and schemas
7. Querying data
8. HiveODBC
9. Resources

Published in: Technology
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Introduction to Apache Hive

  1. 1. @avkashchauhan
  2. 2. MapReduce
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  4. 4. Command Descriptionquit Use quit or exit to leave the interactive shell.set key=value Use this to set value of particular configuration variable. One thing to note here is that if you misspell the variable name, cli will not show an error.set This will print a list of configuration variables that are overridden by user or hive.set -v This will print all hadoop and hive configuration variables.add FILE [file] [file]* Adds a file to the list of resourceslist FILE list all the files added to the distributed cachelist FILE [file]* Check if given resources are already added to distributed cache! [cmd] Executes a shell command from the hive shelldfs [dfs cmd] Executes a dfs command from the hive shell[query] Executes a hive query and prints results to standard outsource FILE Used to execute a script file inside the CLI.
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