適用於: Databricks SQL Databricks Runtime 定義受控或外部數據表,並可選擇性地使用數據源。 語法 複製 { { [CREATE OR] REPLACE TABLE | CREATE [EXTERNAL] TABLE [ IF NOT EXISTS ] } table_name [ table_specification ] [ USING data_sourc
15-- Roll 3 10-sided dice>SELECTroll_dice(3,10)21-- Roll 3 10-sided dice using named parameter invocation>SELECTroll_dice(10=> num_sides, num_dice =>3)17-- Create a SQL function with a scalar subquery.>CREATEVIEWscores(player, score)ASVALUES(0,1), (0,2), ...
2D521 SQL COMMIT 或 ROLLBACK 在目前的作業環境中無效。 DELTA_CONCURRENT_APPEND、DELTA_CONCURRENT_DELETE_DELETE、DELTA_CONCURRENT_DELETE_READ、DELTA_CONCURRENT_TRANSACTION、DELTA_CONCURRENT_WRITE、DELTA_DELETION_VECTOR_MISSING_NUM_RECORDS、DELTA_DUPLICATE_ACTIONS_FOUND、DELTA_METADATA_CHANGED、DELTA_PROTOCOL_CH...
命名参数调用(包括混合调用)也可用于SQL UDF 和 Python UDF。 语法 复制 function_name ( [ argExpr | table_argument | star_clause ] [, ...] [ namedParameter => [ argExpr | table_argument ] [, ...] ) table_argument { TABLE ( { table_name | query } ) [ table_partition ] [ table...
The following example shows a basic merge command, along with some optional WHEN matched conditions. -- using merge with optional clausesMERGEINTOtable_a aUSINGtable_b bONa.col_name=b.col_nameWHENMATCHEDANDb.col_1=XTHENUPDATESET*WHENMATCHEDANDa.col_2=YTHENDELETEWHENNOTMATCHEDTHENINSERT* ...
This strategy is currently only compatible with All Purpose Clusters, not SQL Warehouses.This strategy is most effective when specified alongside a partition_by clause in your model config. dbt will run an atomic insert overwrite statement that dynamically replaces all partitions included in your que...
✌️Challenges : we want to query files (using Spark SQL) and manualy define our schema and create delta table . To overcome this, CT USNG OPTION LOCATION (CT UOLO) to define schema And We have CTAS that can create a delta table => we combine this with view so we have the benef...
These commands are essential for complying with a mandated request to remove a user’s personal information based on the General Data Protection Regulation and California Consumer Privacy Act. IDG We can delete a specific loan ID using one line of standard SQL. ACID transitions and the Delta ...
ON DELETE NO ACTION } For compatibility with non-standard SQL dialects you can specifyENABLE NOVALIDATEinstead ofNOT ENFORCED DEFERRABLE INITIALLY DEFERRED. Parameters CONSTRAINTname Optionally specifies a name for the constraint. The name must be unique within the schema. If no name is providedD...
Identify the PIVOT clause as a way to convert data from wide format to a long format. Define a SQL UDF. Identify the location of a function. Describe the security model for sharing SQL UDFs. Use CASE/WHEN in SQL code. Leverage CASE/WHEN for custom control flow. Section 3: Incremental ...