SQL 複製 GROUP BY warehouse, product WITH CUBE 或 SQL 複製 GROUP BY CUBE(warehouse, product) 相當於: SQL 複製 GROUP BY GROUPING SETS((warehouse, product), (warehouse), (product), ()) 而 SQL 複製 GROUP BY CUBE(warehouse, product, location) 相當於以下内容: SQL 複製 ...
SQL複製 -- Use the PARTTIONED BY clause in a table definition>CREATETABLEstudent(universitySTRING, majorSTRING,nameSTRING) PARTITIONEDBY(university, major) >CREATETABLEprofessor(nameSTRING) PARTITIONEDBY(universitySTRING, departmentSTRING);-- Use the PARTITION specification to INSERT into a table>INSE...
You cannot use this clause on tables that useliquid clustering. Examples SQLCopy >OPTIMIZEevents; >OPTIMIZEeventsFULL; >OPTIMIZEeventsWHEREdate>='2017-01-01'; >OPTIMIZEeventsWHEREdate>=current_timestamp() -INTERVAL1dayZORDERBY(eventType);
SQL 复制 -- Multiple MATCHED and NOT MATCHED clauses with schema evolution enabled. > MERGE WITH SCHEMA EVOLUTION INTO target USING source ON source.key = target.key WHEN MATCHED THEN UPDATE SET * WHEN NOT MATCHED THEN INSERT * WHEN NOT MATCHED BY SOURCE THEN DELETE 相关文章 公用表表...
SQL复制 -- Creates a streaming table that processes files stored in the given external location with-- schema inference and evolution.>CREATEORREFRESHSTREAMINGTABLEraw_dataASSELECT*FROMSTREAM read_files('abfss://container@storageAccount.dfs.core.windows.net/base/path');-- Creates a strea...
Databricks SQL Databricks Runtime 傳回資料分割區內前一列的expr值。 語法 lag( expr [, offset [, default] ] ) [ IGNORE NULLS | RESPECT NULLS ] OVER clause 引數 expr:任何類型的表達式。 offset:一個指定位移的可選整數常數。 default:與 相同類型的expr表達式。
Delta Lake does supportCREATE TABLE LIKEin Databricks SQL and Databricks Runtime 13.3 LTS and above. In Databricks Runtime 12.2 LTS and below, useCREATE TABLE AS. Syntax Ikkopja CREATE TABLE [ IF NOT EXISTS ] table_name LIKE source_table_name [table_clauses] table_clauses { USING data_...
Databricks SQL Databricks Runtime 16.3 和更新版本 Azure Databricks 建議針對所有DROP FEATURE命令使用 Databricks Runtime 16.3 和更新版本,以取代舊版行為。 從Delta Lake 資料表中移除功能。 拿掉功能可能會導致在資料表通訊協定中新增checkpointProtection寫入器功能。 如需詳細資訊,請參閱卸除 Delta 數據表功能...
SQL Kopiraj COPY INTO target_table [ BY POSITION | ( col_name [ , ... ] ) ] FROM { source_clause | ( SELECT expression_list FROM source_clause ) } FILEFORMAT = data_source [ VALIDATE [ ALL | num_rows ROWS ] ] [ FILES = ( file_name [, ...] ) | PATTERN = glob_patte...
Databricks Runtime 和 Databricks SQL 預設值不支援新增 SQLSTATE:42623 無法執行 <statementType> 命令,因為在使用數據表提供者 "DEFAULT" 將新列新增至已存在的目標數據來源時,<dataSource> 值不受支援。 總合函數_非確定性表達式 SQLSTATE:42845 不具決定性表達式 <sqlExpr> 不應該出現在聚合函數的自變數中。