syntaxsql 複製 CREATE EXTERNAL DATA SOURCE <data_source_name> WITH ( [ LOCATION = '<prefix>://<path>[:<port>]' ] [ [ , ] CONNECTION_OPTIONS = '<key_value_pairs>'[,...]] [ [ , ] CREDENTIAL = <credential_name> ] [ [ , ] PUSHDOWN = { ON | OFF } ] ) [ ; ] 引數...
需要对 SQL Server 中数据库的CONTROL权限。 锁定 对EXTERNAL DATA SOURCE对象采用共享锁。 安全性 PolyBase 支持大多数外部数据源的基于代理的身份验证。 创建数据库范围凭据以创建代理帐户。 升级到 SQL Server 2022 从SQL Server 2022 (16.x) 开始,不再支持 Hadoop 外部数据源。 需要手动重新创建以前使用TYPE =...
Syntax for SQL Server 2022 and later Arguments Show 7 more Creates an external data source for querying using SQL Server, Azure SQL Database, Azure SQL Managed Instance, Azure Synapse Analytics, Analytics Platform System (PDW), or Azure SQL Edge. This article provides the syntax, arguments,...
Hi,I am trying to set up an external data source to connect to Oracle. This works fine when I specify the Oracle hostname like "LOCATION =...
Create a data source To connect to a database, create a data source that will store your connection details. Select the data source you want to create. You can do this using one of the following ways: In the main menu, go toFile | New | Data Sourceand selectMicrosoft SQL Server....
Create a connection to the external data To specify the SQL Server database for the external content type, click Click here to discover external data sources and define operations. Click Add Connection, select SQL Server in the External Data Source Type Selection dialog box, and then click OK....
CREATE EXTERNAL TABLE [dbo]。[Reject_Example] ( [Col_one]TINYINT NULL, [Col_two]VARCHAR (100) NULL, [Col_three]数值 (2,2) NULL ) WITH ( DATA_SOURCE = EDS_Reject_Row ,LOCATION = '/Read_Directory' ,FILE_FORMAT = CSV ,REJECT_TYPE = VALUE ...
CREATE EXTERNAL FILE FORMAT file_format_name WITH ( FORMAT_TYPE = DELIMITEDTEXT [ , FORMAT_OPTIONS ( <format_options> [ ,...n ] ) ] [ , DATA_COMPRESSION = { 'org.apache.hadoop.io.compress.GzipCodec' } ]); <format_options> ::= { FIELD_TERMINATOR = field_terminator | STRING_DELIMIT...
CREATE EXTERNAL TABLE [dbo]。[Reject_Example] ( [Col_one]TINYINT NULL, [Col_two]VARCHAR (100) NULL, [Col_three]数值 (2,2) NULL ) WITH ( DATA_SOURCE = EDS_Reject_Row ,LOCATION = '/Read_Directory' ,FILE_FORMAT = CSV ,REJECT_TYPE = VALUE ,REJECT_VALUE = 100 ,REJECTED_ROW_LOCATI...
DATA_SOURCE = external_data_source_name 指定包含存储或将存储外部数据位置的外部数据源对象的名称。 位置是 Hadoop 群集或 Azure Blob 存储。 若要创建外部数据源,请使用 CREATE EXTERNAL DATA SOURCE (Transact-SQL)。 FILE_FORMAT = external_file_format_name 指定包含外部数据文件格式的外部文件格式对象的名...