ALTER STREAMING TABLE [[<catalog>.]<database>.]<name> ADD [SCHEDULE [REFRESH] CRON '<cron-string>' [ AT TIME ZONE '<timezone-id>' ]]; 如需重新整理排程查詢的範例,請參閱 ALTER STREAMING TABLE。追蹤重新整理的狀態您可以檢視串流數據表重新整理的狀態,方法是在 Delta Live Tables UI 中查看管...
常用的 TBLPROPERTIES 和 OPTIONS 鍵 下列設定通常與 Delta Lake 搭配使用: delta.appendOnly:設定為true以停用UPDATE和DELETE作業。 delta.dataSkippingNumIndexedCols:設定為要收集和考慮統計數據的前置數據行數目。 delta.deletedFileRetentionDuration:設置為間隔時間,例如'interval 7 days'以控制何時允許刪除檔案VA...
將結構陣列分解成數據表。 在Databricks SQL 和 Databricks Runtime 16.1 和更新版本中,此函式支援具名參數調用。 語法 inline(input) 引數 inputARRAY<STRUCT>:表達式。 傳回 一組由陣列input的結構元素中的欄位組成的資料列。inline所產生的數據行是欄位的名稱。
列出所有 Databricks 診斷設定類別 用來移至個別數據表的 Databricks 診斷設定類別。 此查詢會列出現在在 DatabricksWorkspaceLogs 數據表中的所有類別,以及仍在自己的數據表中的所有類別。 union isfuzzy=true DatabricksAccounts, DatabricksCapsule8Dataplane, DatabricksClamAVScan, DatabricksClusterLibraries, DatabricksClus...
Createstreaming tables A streaming table is defined by a SQL query inDatabricks SQL. When you create astreaming table, the data currently in the source tables is used to build thestreaming table. After that, you refresh the table, usually on a schedule, to pull in any added data in ...
Start by selecting the Delta Sharing submenu under the Data menu, and then click on the ‘Share Data’ button: Next, assign a name to the share: Once the share is set up, you can begin adding tables to it: Select a catalog and database to view a list of available tables: After...
df<-read.df(NULL,"com.databricks.spark.redshift",tempdir="s3n://path/for/temp/data",dbtable="my_table",url="jdbc:redshift://redshifthost:5439/database?user=username&password=pass") Hadoop InputFormat The library contains a Hadoop input format for Redshift tables unloaded with the ESCAPE...
Any AAD member assigned to the Owner or Contributor role can deploy Databricks and is automatically added to the ADB members list upon first login. If a user is not a member or guest of the Active Directory tenant, they can’t login to the workspace. Granting access to a user in another...
Score) are stored in the multi-health system database per patient. Each of these features undergo schema validation and distribution drift monitoring as part of the data drift monitoring process. Results are written back into tables designed to store data drift monit...
DESCRIBE DATABASE DESCRIBE FUNCTION 描述位置 DESCRIBE PROVIDER DESCRIBE QUERY DESCRIBE RECIPIENT DESCRIBE SCHEMA DESCRIBE SHARE DESCRIBE TABLE DESCRIBE VOLUME LIST SHOW ALL IN SHARE SHOW CATALOGS SHOW COLUMNS SHOW CONNECTIONS SHOW CREATE TABLE SHOW CREDENTIALS SHOW DATABASES SHOW FUNCTIONS SHOW GROUPS 顯示位...