SQL Server vs Oracle Query Statistics to Improve Performance
In this article, learn how to query cached query statistics and execution plans for Oracle or SQL Server to identify code that can be optimized to improve performance.
2023-07-21
Oracle
The SELECT Statement in Oracle
The SELECT statement is used to retrieve information from a database. Following the execution of a SELECT statement, a tabular result is held in a result table (called a result set). It allows you to select the table columns depending on a set of criteria. In this article, I will introduce the basic SELECT statement fetching data from just one table.
2023-06-21
Oracle ASM: Migrating from UDEV devices to the ASM Filter Driver
This article looks at the way in which you can convert unmanaged devices to the ASM filter drive in an Oracle system.
2022-03-04
4,424 reads
Transformations by the Oracle Optimizer
To troubleshoot poorly performing SQL in Oracle, you must understand which transformations the optimizer has made. Jonathan Lewis demonstrates several possible optimizations for one query.
2022-02-09
Install SQL Server and Oracle using PowerShell and Windows Containers
In this article we look at how to install SQL Server and Oracle using PowerShell to create development environments using Windows Containers.
2022-01-28
SQL String functions in SQL Server, Oracle and PostgreSQL
In this article we look at how to use string functions to concatenate, replace, trim and get substrings in SQL Server, Oracle and PostgreSQL.
2021-10-25
Text Mining and Sentiment Analysis: Oracle Text
Oracle has built-in functionality to analyze text. Sanil Mhatre demonstrates how to perform a sentiment analysis on data stored in a table using Oracle Text.
2021-09-15
Oracle sequences – 12c features including “identity”
Oracle added several enhancements to the sequence object in version 12c, including an “identity” column feature. Jonathan Lewis explains how to work with these new features.
2021-09-10
SQL VIEW Comparison in SQL Server, Oracle and PostgreSQL
In this article we look at the similarities and differences for views in SQL Server, Oracle and PostgreSQL. We also look at indexed views, materialized views and updatable views.
2021-08-16
Typical uses of Oracle sequences
Oracle sequences supply unique numbers that can be used when populating tables. In this article, Jonathan Lewis explains the typical uses of Oracle sequences.
2021-08-04
Blogs
T-SQL Tuesday #191 Round Up
By Steve Jones
I hosted this month, late as it turns out, but we still had a...
Come See Me at the PASS Data Community Summit
By Brian Kelley
I'm speaking on Quantum Computing at the PASS Data Community Summit. It's scheduled for...
SQL Clone at Scale with Striped Backups
By Steve Jones
I had a customer recently reach out to ask if SQL Clone would work...
Forums
Create an HTML Report on the Status of SQL Server Agent Jobs
Comments posted to this topic are about the item Create an HTML Report on...
Managing unused indexes
While doing some housekeeping activity on several old but large production databases, I come...
Cloud Performance Considerations
How important to SQL Server is the speed of the SSD and network latency?...
Question of the Day
Striped Backup File Limits
In SQL Server 2022, how many backup files can I have in a striped backup?
See possible answers