SQL Server – Breakup A Monolithic Data File (Database) Into Multiple Small Files And Breakaway From Shrinking!

If the SQL Server databases being manged are a few GB in size each, then having a single .mdf file for data is fine. However, if the size is anywhere in the hundreds of GB or more, then a single .mdf file is certainly not the way to go. Related to this, please checkout my … Continue reading SQL Server – Breakup A Monolithic Data File (Database) Into Multiple Small Files And Breakaway From Shrinking!

SQL Server: Curse Of Linked Server Security And The Fix: Pass-through Authentication

A great and related reference to what we will discuss in this blog post is this one: https://thesqldude.com/2011/12/30/how-to-sql-server-bulk-insert-with-constrained-delegation-access-is-denied/ Linked Servers in a sentence or two: Linked servers in SQL Server are connection definitions from one data source to another (or same instance) so that queries can be written joining tables spanning the multiple data sources. Although … Continue reading SQL Server: Curse Of Linked Server Security And The Fix: Pass-through Authentication

Oracle – Facts About Primary Key vs. Unique Key You May Not Have Known

In this post we talk about Oracle specifically although some concepts apply to other databases. At a high level - PK's vs UK's Ask someone who has been doing database work about Primary Keys (PK) and Unique Keys (UK) and the differences between the two, they will tell you everything they know. Some even go into … Continue reading Oracle – Facts About Primary Key vs. Unique Key You May Not Have Known

Oracle PL/SQL – Fastest Way To Execute Code Is? To, Not Execute It! – Function Result Caches – Part I

What is the fastest way to execute a PL/SQL function? If you paid attention to the title, your answer would be “to not execute it at all”. In fact, that is the correct answer and Oracle provides the means to do it. The magic is possible because of an Oracle feature called result cache which […]

Oracle – Fastest Way To Execute SQL Is? To, Not Execute It! – Query Result Cache – Part II

Before you read on, please check out my related post on "Function Result Cache". You may find it valuable in this context. Conversation sounds familiar? I am sure you have been privy to a conversation like this between an IT manager and a DBA: Manager: My query is extremely slow. Can you make the query … Continue reading Oracle – Fastest Way To Execute SQL Is? To, Not Execute It! – Query Result Cache – Part II