oracleReaderQuery 使用自訂 SQL 查詢來讀取資料。 例如 "SELECT * FROM MyTable"。當您啟用分割載入時,您必須攔截查詢中任何對應的內建分割區參數。 如需範例,請參閱從Oracle 平行複製一節。 No convertDecimalToInteger 具有零或未指定小數點位數的 Oracle NUMBER 類型將會轉換成對應的整數。 允許的值為 true 和...
CREATE EXTERNAL DATA SOURCE [OracleSalesSrvr] WITH (LOCATION = 'oracle://<oracle_server,nvarchar(100)>',CREDENTIAL = [OracleCredential]); 可选:Oracle 代理身份验证Oracle 支持代理身份验证,以提供精细的访问控制。 代理用户使用其凭据连接到 Oracle 数据库,并在数据库中模拟另一个用户。可以...
在Azure Data Studio 中,连接到大数据群集的 SQL Server 主实例。 有关详细信息,请参阅连接到 SQL Server 主实例。 双击“服务器”窗口中的连接,以显示 SQL Server 主实例的服务器仪表板 。 选择“新建查询” 。 运行以下 Transact-SQL 命令,将上下文更改为主实例中的 Sales 数据库。
在实际运行中又有一个问题,就是发现日志恢复不能实时到备库,能不能在日志恢复的同时可以用只读的方式打开数据库,这就不得不提到ORACLE11G中的一个特性:Oracle 11g物理Active Data Guard实时查询(Real-time query)功能,用以下方法实现 此过程只须在备库实现 1)查看备库当前状态 1 2 3 4 5 6 7 SQL> select...
Also note that truncate is DDL in Oracle. So if you’ve used this method to wipe a table, there’s no way back! Fortunately, you can overcome both of these issues. How to Recover a Few Rows++ Flashback Data Archive powers up Flashback Query. It does this by storing the changes in...
Oracle Database Server 12c (12.1.0.2) and later Oracle Autonomous Database - all versions Before you can connect to an Oracle database using Power Query, you need to install the Oracle Client for Microsoft Tools (OCMT). To connect to an Oracle database with theon-premises data gateway, 64...
Document 1482811.1 Best Practices: Proactively Avoiding Database and Query Performance Issues Document 1477599.1 Best Practices Around Data Collection For Performance Issues 1. 2. 3. 目前,用户可以选择3个级别来启动挂起诊断的自动生成。 这为用户提供了在尽可能不引人注目的情况下进行挂起诊断的灵活性(如果数...
Property graphs are used to model relationships among data, and they enable query and data analytics based on these relationships. A property graph has vertices that can contain detailed information about a subject, and edges that denote the relationship between the vertices. The vertices and edges...
Property graphs are used to model relationships among data, and they enable query and data analytics based on these relationships. A property graph has vertices that can contain detailed information about a subject, and edges that denote the relationship between the vertices. The vertices and edges...
Oracle database query tool and GUI client, SQL editor, and database browser features and information such as visual tools for creating oracle tables, views, procedures, packages, and more.