Using HiveQL Editor on the Hue Web UI

Scenario

Users can use the Hue web UI to execute HiveQL statements in an MRS cluster.

Access Editor

  1. Access the Hue web UI. For details, see Accessing the Hue Web UI.

  2. In the navigation tree on the left, click image1 and choose Hive. The Hive page is displayed.

    Hive supports the following functions:

    • Executes and manages HiveQL statements.

    • Views the HiveQL statements saved by the current user in Saved Queries.

    • Queries HiveQL statements executed by the current user in Query History.

Executing HiveQL Statements

  1. Select a Hive database from the Database drop-down list box. The default database is default.

    The system displays all available tables. You can enter a keyword of the table name to search for the desired table.

  2. Click the desired table name. All columns in the table are displayed.

    Move the cursor to the row where the table or column is located and click image2. Column details are displayed.

  3. Enter the query statements in the area for editing HiveQL statements.

  4. Click image3 to execute the HiveQL statements.

    Note

    • If you want to use the entered HiveQL statements again, click image4 to save them.

    • Advanced query configuration:

      Click image5 in the upper right corner to configure information such as files, functions, and settings.

    • Viewing the information of shortcut keys:

      Click image6 in the upper right corner to view the syntax and keyboard shortcut information.

    • To delete an entered HiveQL statement, click the triangle next to image7 and select Clear.

    • Viewing history:

      Click Query History to view the HiveQL running status. You can view the history of all the statements or only the saved statements. If many historical records exist, you can enter keywords in the text box to search for desired records.

Viewing Execution Results

  1. View the execution results below the execution area on Hive. The Query History tab page is displayed by default.

  2. Click a result to view the execution result of the executed statement.

Managing Query Statements

  1. Click Saved Queries.

  2. Click a saved statement. The system automatically adds the statement to the editing area.

Modifying the Session Configuration of the Hue Editor

  1. On the editor page, click image8.

  2. Click image9 on the right of Files, and then click image10 to select files.

    You can click image11 next to Files to add a file resource.

  3. In the Functions image12 area, enter a user-defined name and the class name of the function.

    You can click image13 next to Functions to add a customized function.

  4. In the Settings image14 area, enter the Hive parameter name in the Key, and value in Value. The current Hive session connects to Hive based on the customized configuration.

    You can click image15 to add a parameter.

last updated: 2024-11-14 12:28 UTC - commit: 9d95be538b931742820cff066f12ce18f037ed96