Hint are used to alter execution plans of SQL statements. by using hints you will be able to choose the execution plans. for eg. in a SELECT statement your will be able to specify whether an index is to be used or not . If you want to use and index, You can also specify which in...
Indexes. They're one of the most powerful and misunderstood aspects of SQL performance. In this post we'll look at the purpose of an index, how to create and choose choose your index type. Then finish with a discussion of how to decide what to index and
58. How-to use the optimized component search in Oracle ADF Faces Abstract: How do you search for a component on a view? Calling findComponent on a parent container or the view root ? I think that most of us are familiar with this technique for finding components by their Id. However, ...
Use the ANALYZE command to collect statistics that can be used by Oracle to implement a cost-based approach to SQL statement optimization. You can supply additional "hints" to the optimizer as needed. Call the DBMS_APPLICATION_INFO.SET_ACTION procedure before beginning a transaction to register ...
在多表联合查询中,当使用Ordered提示改变SQL执行计划之后,通常我们很难再次控制结果集中进一步Join的顺序. 这时候我们可以使用Oracle提供的另外一个Hints: Leading 提示. 这个Hints在Oracle9i中的含义为: TheLEADINGhint causes Oracle to use the specified table as the first table in the join order. ...
I need to make a select without using any Index of the table (I want to make allways a FULL TABLE SCAN). I was trying with the next: SELECT * FROM HRP1001 %_HINTS ORACLE 'NO_INDEX'. but it seems not to be working, should I use "NO_INDEX"? Whatelse? Thank you very much for...
How to use the normal hints SQL Server has to offer? SQL Server Query options in ABAP Special case of handling queries which join between tables 显示另外 2 个 Working on a few Proof of Concepts this year where customers moved their SAP landscapes from Oracle or DB2 to SQL Server, we...
“Unable to enlist in the transaction” with Oracle linked server from MS SQL Server [<Name of Missing Index, sysname,>] in non clustered index [Execute SQL Task] Error: The value type (__ComObject) can only be converted to variables of type Object. [ODBC Driver Manager] Data sourc...
How to integrate Oracle BI Publisher via Web Services in Oracle Forms 11g Version 4.0 White Paper, May 2013 Authors: Contributors: Axel Harsch, PITSS Jürgen Menge, Oracle Florin Serban, PITSS Rainer Willems, Oracle Mireille Duroussaud, Oracle Introduction...3 Creating a client for...
to: Oracle Server - Enterprise Edition - Version: 9.2.0.1 to 10.2.0.4 Information in this document applies to any platform. Goal It might happen that, for a SQL statement due to some reason optimizer is opting for full table scan rather than index scan. Hints can be used to guide ...