How do you search for a table in Hive by field name?

2 years ago
Isabella Edwards
1 minute

To find a table based on the column name, you can use the DESCRIBE command in Hive with wildcards.

以下是一些示例命令：

  1. If you know a part of the field name, you can use the LIKE operator and wildcard to find related tables.
DESCRIBE * LIKE '*field_name*';

This command will provide information about all tables containing the “field_name” field.

  1. You can directly use the DESCRIBE command to search for the full name of a field if you know it.
DESCRIBE table_name field_name;

This command will return the description information of the specified field in the specified table.

Please note that in the above commands, “field_name” should be replaced with the name of the field you want to search, and “table_name” should be replaced with the name of the table you want to search.

Additionally, you can query field information using Hive’s metadata repository (Metastore). You can connect to the Metastore database and then perform the necessary query to find tables that contain the specified field. The specific query method can be adjusted based on your Metastore database type and configuration.

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