This still doesn't guarantee that your query will use that index, that depends also on selectivity of the query, if the query is highly selective (returns only a few rows), then oracle will probably use the index, but when the query is not selective (returns thousands of rows), than th...
When working with Oracle databases, there are times when you need to optimize and homogenize the database to ensure good performance. This is also known as database tuning. In most cases when tuning a database, you’ll focus on SQL query tuning. In Oracle, SQL query tuning is an importan...
This video shows how to auto-optimize SQL code with Toad for Oracle Xpert Edition. 了解详情 Related videosHow to Use Generative AI Features in Toad for Oracle In this short video you will learn how to use generative AI features in Toad for Oracle. 03:53 Work smarter, not harder with...
Step 1: Use the desktop icon to launch Oracle SQL Developer. Step 2: Select the Connections option under View. Step 3: Right-click Connections in the Connections tab and choose New Connection. You’ll see a window asking you to choose a new database connection. Step 4: Fill in the corr...
Re: how to optimize this sql query? William Lou April 29, 2008 11:29AM Sorry, you can't reply to this topic. It has been closed.Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represen...
Oracle Performance Tuning Forgr2Gavin Powell.How Oracle SQL Optimization Works.Oracle Performance Tuning for 10gR2. 2007Gavin Powell.How Oracle SQL Optimization Works. Oracle Performance Tuning for 10gR2 . 2007How Oracle SQL Optimization Works. Gavin Powell. Oracle Performance Tuning for...
If the result is “Redwood,” then it’s Oracle-compatible. If not, the query will error out: ERROR: unrecognized configuration parameter"db_dialect"SQLstate:42704 You can also run these queries to determine Oracle-compatibility: select*fromdual;orselectsysdate; ...
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Querying Data at a Point in Time (Flashback Query)Although some Oracle tools and applications simplify or mask the use of SQL, all database operations are performed using SQL, to take advantage of the security and data integrity features built into Oracle.Overview...
To optimize query multiple execution you can manually call OracleCommand.Prepare method that creates compiled version of the query on server and forces synchronization. After the query is prepared it is not advised to alter OracleCommand.Text property because the OracleCommand becomes unprepared again....