This article explores the internals of Oracle9i indexing; reviews the standard b-tree index, index-only tables, and how these indexes may increase the speed of Oracle SQL queries.

I'm on an Oracle 12c database; I have a column of data with values resembling this: HL7_Result_for_Message_ID_123Q324343.hl7 I need to grab that ID number (in bold), the challenge being that it ...

This is introductory to SQL. I have over 10 queries I need to run/learn for my SQL exam. I am given about 10 tables and to display combination of 2-3 tables in each query. Is there any website ...

SQL Plus opens a dialog box for logging into your Oracle database. Type your Oracle database username and password into the dialog box and then click the "OK" button.

Oracle SQL query rewrite mechanism. In the next example, we create a materialized view that determines the average salary for each job in the database.

The idea is to write only one SQL query that can be converted to other database dialects in a heterogeneous database environment. ... SwisSQL 1.0 supports Oracle, DB2, SQL Server, ...

Oracle today announced the latest generation of its Exadata X10M computing platform, with up to three times higher transaction throughput and 3.6 times faster analytic query performance than the prev ...