SQL on Hadoop SQL on Hadoop openGauss支持通过外表机制FDW(Foreign Data Wrapper)访问外部数据源。在openGauss支持创建针对HDFS上结构化数据的只读外表,并继承所有已有的SQL查询语法和能力,实现针对HDFS外表数据的查询功能。 使用前的对接配置 利用外表访问HDFS...
Wait for SQL Description Options Wait for SQL Description The Wait For SQL action scans a database and checks if the database meets user-defined conditions. Options Optio...
Sql Sink Compile & deploy plugin Default build command MySql build command Properties Sample usage Sql Sink The sink will write the result to the database. Compile & depl...
SQL Server Component format Warning Spec metadata fields Create Azure SQL instance Create a dedicated user Related links SQL Server Detailed information on the SQL Server ...