( LOCATION ='sqlserver://SqlServer',-- PUSHDOWN = ON | OFF,CREDENTIAL = SQLServerCredentials ); GOCREATESCHEMAsqlserver; GO/* LOCATION: sql server table/view in 'database_name.schema_name.object_name' format *
SQL>droptablealen;Tabledropped.SQL>@alen.sql51;Tablecreated.SQL>selectcount(1)fromalen;COUNT(1)---14 2.3 ORACLE_DATAPUMP访问驱动 创建外部表,除了使用ORACLE_LOADER驱动之外,还可以使用ORACLE_DATAPUMP,使用ORACLE_DATAPUMP可以实现数据的卸载和加载,通过create table as select 语句,ORACLE_DATAPUMP驱动可以将数...
SQL 型 V4.3.0 参考指南 SQL 参考 SQL 语法 普通租户(MySQL 模式) SQL 语句 CREATE EXTERNAL TABLE 更新时间:2025-05-07 10:06:48 描述 该语句用来在数据库中创建一张新的外表。 外表是数据库管理系统中的一项关键功能,通常数据库中的表存放于数据库的存储空间中,而外表的数据存储于外部存储服务中。
CREATE EXTERNAL TABLE dbo.OrderInfo ( OrderID nvarchar(100) not null, CustomerID nvarchar(100) not null ) WITH ( DATA_SOURCE = MyElasticDBQueryDataSrc) 注意:上面创建的External Table的Table Name和Table Schema,必须与Azure SQL Database: lcqyvtqri1.database.chinacloudapi.cn,1433,数据库OrderDB中...
( LOCATION ='sqlserver://SqlServer',-- PUSHDOWN = ON | OFF,CREDENTIAL = SQLServerCredentials ); GOCREATESCHEMAsqlserver; GO/* LOCATION: sql server table/view in 'database_name.schema_name.object_name' format * DATA_SOURCE: the external data source, created above. */CREATEEXTERNALTABLE...
SQL 语句 通用语法 通用表表达式 ALTER DATABASE ALTER OUTLINE ALTER EXTERNAL TABLE ALTER SEQUENCE MAJOR 和 MINOR ALTER TABLE ALTER TABLEGROUP ALTER USER ALTER VIEW ANALYZE CREATE DATABASE LINK CREATE DATABASE CREATE EXTERNAL TABLE CREATE INDEX CREATE OUTLINE CREATE FORMAT OUTLINE DROP RESTORE POINT CREA...
You can query a SQL external table just as you would query an Azure Data Explorer or a table in a KQL Database.How it worksAzure SQL external table queries are translated from Kusto Query Language (KQL) to SQL. The operators after the external_table function call, such as where, project...
CREATE EXTERNAL TABLE [dbo]. [Reject_Example] ( [Col_one] TINYINT NULL, [Col_two] VARCHAR(100) NULL, [Col_three] NUMERIC(2;2) NULL ) WITH ( DATA_SOURCE = EDS_Reject_Row ,LOCATION = '/Read_Directory' ,FILE_FORMAT =...
SQL Server 2022(16.x)及更高版本的Azure Synapse Analytics 平台系统(PDW) 创建一个外部表,然后并行导出 Transact-SQL SELECT 语句的结果。 Azure Synapse Analytics 和 Analytics Platform System,支持 Hadoop 或 Azure Blob 存储。 SQL Server 2022(16.x)及更高版本支持CREATE EXTERNAL TABLE AS SELECT(CETAS)...
SQL Server 2022 (16.x) and later versions support CREATE EXTERNAL TABLE AS SELECT (CETAS) to create an external table and then export, in parallel, the result of a Transact-SQL SELECT statement to Azure Data Lake Storage (ADLS) Gen2, Azure Storage Account V2, and S3-compatible object st...