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.

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 ...

Add the NOLABEL option to the query to display the renamed columns. The PROC SQL SELECT statement uses a CONNECTION TO component in the FROM clause to retrieve data from the ORACLE table. The ...

Developers can use the ORDER SIBLINGS BY feature of Oracle 10g and later to sort the records in a hierarchy created by the START WITH and CONNECT BY clauses in a SELECT statement.

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 ...

The outer PROC SQL query retrieves data from the view descriptor; the subquery uses a Pass-Through query to retrieve data. This query returns the names of employees who earn less than the average ...

Oracle is staking its claim in the data lakehouse business while continuing to augment its ongoing generative AI efforts.

Oracle has embedded GPT-5 into its cloud infrastructure and SaaS apps, extending generative AI to databases, HR, finance, and ...