Узнайте, какиспользоватьсинтаксис CREATE VIEW языка SQL в Databricks SQL и Databricks Runtime.
Databricks SQL Databricks Runtime Constructs a virtual table that has no physical data based on the result-set of a SQL query.ALTER VIEWandDROP VIEWonly change metadata. Syntax CREATE [ OR REPLACE ] [ TEMPORARY ] VIEW [ IF NOT EXISTS ] view_name [ column_list ] [ schema_binding | ...
CREATE MATERIALIZED VIEW 项目 2025/01/30 4 个参与者 反馈 本文内容 语法 parameters 所需的权限 行筛选器和列掩码 显示另外 3 个 适用于:Databricks SQL 具体化视图是预计算结果可用于查询的视图,并且可以更新以反映输入中的更改。 每次刷新具体化视图时,都会重新计算查询结果,以反映上游数据集中的变化...
建立採用一組自變數並傳回純量值或一組數據列的SQL純量或數據表函式。 適用於: Databricks SQL Databricks Runtime 13.3 LTS 和更新版本 建立Python 純量函式,以接受一組自變數並傳回純量值。 Python UDF 需要在無伺服器或 Pro SQL 倉儲上的 Unity Catalog,或在共用或單一使用者的 Uni...
CREATE MATERIALIZED VIEW Applies to:Databricks SQL Amaterialized viewis a view where precomputed results are available for query and can be updated to reflect changes in the input. Each time a materialized view is refreshed, query results are recalculated to reflect changes in upstream datasets. ...
1.打开Databricks的工作区,进入所需的notebook或者Dashboard. 2.在代码单元格中输入以下SQL语句来创建表: ``` CREATE TABLE <表名> ( <列名1> <数据类型1>, <列名2> <数据类型2>, ... ); ``` 3.将上述代码中的`<表名>`替换为表的名称,并为表的列指定合适的名称和数据类型. 4.执行代码单元格来...
In Databricks SQL, nested data structures like arrays and structs allow you to elegantly manage and query complex, hierarchical data with ease, transforming intricate datasets into insightful, actionable information. In this video, I demonstrated how to create, insert, and query nested data structures...
Connect to Databricks SQL with SQL editor Click Newin the sidebar and selectQuery. The SQL editor opens. Select a warehouse. The first time you create a query the list of available SQL warehouses displays in alphabetical order. The next time you create a query, the last used warehouse is ...
Click theNew Connection Wizardbuttonin theToolbaror in theDatabase Navigatorview toolbar. To quickly find the needed driver for your database connection, you can: Type a hint in the text field above the list of drivers. Browse the database sections to find the required database. ...
When you paste data on the data source page, Tableau creates a new connection in the existing data source. When you paste data on the sheet, Tableau creates a new data source that you can begin analysing.When you paste the data as a data source, the data source is saved as a text fi...