It also describes how to manage and use the query cache, a feature that enables the Oracle BI Server to save the results of a query in cache files and then reuse those results later when a similar query is requested. Using cache, the cost of database processing must be paid only once ...
Oracle.Database(serveras text, optionaloptionsas nullable record) as table 关于 从服务器server上的 Oracle Database 中返回 SQL 表和视图的表。 可以使用服务器选择性指定端口,并用冒号分隔。 可以指定可选记录参数options来控制以下选项: CreateNavigationProperties:一个逻辑值 (true/false),用于在返回的值上...
Abstract schema: The persistent schema abstraction (persistent entities, their state, and their relationships) over which queries operate. The query language translates queries over this persistent schema abstraction into queries that are executed over the database schema to which entities are mapped. Ab...
最後,驅動程式也應該顯示為「ODBC DataSources 32 位」或「ODBC DataSources 64 位」。 收集SAP HANA ODBC驅動程序追蹤 擷取SAP HANA 追蹤: 開啟命令行視窗。 視您的安裝而定,您可能需要移至 C:\Program Files,而不是 C:\Program Files (x86)。 此命令也可能hdbodbc_cons.exe,而不是hdbodb_cons32.exe。
Oracle Database includes a powerful array of query optimization features that maximize performance and allow DBAs to become more productive by providing innovation in plan stability.
Oracle Database in-memory 查询优化 Parallel Join Processing Join Filter 总结 参考资料 导读 Oracle 12c内存数据库是业界第一个 dual-format(同时支持行存、列存)的数据库。在IO层,仍然使用行存格式。在内存中,同时支持行存和列存。数据存储方式的变化,使得数据查询处理算法也要进行扩展,这就要求查询优化器同步...
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.
Assume that you have Microsoft SQL Server Analysis Services (SSAS) installed on an instance of SQL Server 2016. If you use the ODBC .NET Provider to connect to and query an Oracle database, SSAS 2016 may incorrectly generate a filtered SQL query. Additionally, you may receive error mess...
Oracle Provider for OLE DB - Version 9.2.0.8 and later: ORA-12560 Attempting to Query the Oracle Database From Microsoft SQL Server's SQL Query Analyzer Using the Or
Oracle Database - Personal Edition - Version 7.1.4.0 and laterInformation in this document applies to any platform.SymptomsA query that had been running without error now produces an ORA-1722: invalid number error. The statement contains an implicit or explicit conversion from a character to a...