Learning is not a spectator sport
Connor McDonald on SQL and the Oracle Database
Category: Uncategorized
Take care with automatic indexes
This one came in via an AskTOM question. You need to be careful when disabling constraints that are underpinned by an index, especially when it comes to the storage for that index. Let’s take a look at a simple example. I’ll explicitly nominate the…
Grab all the DDL
I posted a video a couple of days ago showing a trigger mechanism to customize the capture of DDL that is issued on your database. The aim here is to be more generous with letting developers execute DDL on their Development databases, whilst still…
PL/SQL – Don’t mix and match scope
Here’s a simple little PL/SQL block where we call an inner procedure PARAMETER_TESTER from its parent block. Pay particular attention to the parameter we pass to the procedure, and it’s value throughout the execution of that procedure. SQL> set serverout on SQL> declare 2…
Quick and easy masking
I had a request from a client a while back regarding masking of data. They had an application with sensitive data in the Production environment (where access and audit were very tightly controlled) but the issue was how to respect that sensitivity in non-Production…
APEX Upgrade redux
I posted about my APEX upgrade to 19 yesterday, and someone was quick to point out to me that they believed I hadn’t covered all of the steps. “What if your APEX instance needs to call web services?” they said. “You need to update…
Application Express 19.1
AskTOM moved to Application Express 19.1 without any major issues last weekend. That in itself is a nice endorsement for APEX, given that the AskTOM application dates back nearly 20 years to 2001, and predates even the existence of APEX. The only fix that…
More chances to bulk process
I’m sure most of us have read or heard at a conference the benefits of array fetching and array binding when it comes to passing data back and forth to the database. And we’ve all seen the numerous demo scripts in PL/SQL along the…
