June 2018
Beginner to intermediate
210 pages
5h 12m
English
Content preview from Apache Hive Essentials - Second Edition
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Table description
Since we deal with tables most of the time, there are a few useful table-information display commands, as follows:
- Show tables with regular expression filters:
> SHOW TABLES; -- Show all tables in database > SHOW TABLES '*sam*'; -- Show tables name contains "sam" > SHOW TABLES '*sam|lily*'; -- Show tables name contains "sam" or "lily"
- List detailed table information for all tables matching the given regular expression:
>SHOW TABLE EXTENDED LIKE 'employee_int*'; OK tableName:employee_internal owner:dayongd location:hdfs://localhost/user/hive/warehouse/employee_internal inputformat:org.apache.hadoop.mapred.TextInputFormat outputformat:org.apache.hadoop.hive.ql.io.HiveIgnoreKeyText OutputFormatcolumns:struct columns { ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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