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Is COUNT(rowid) Faster Than COUNT(*)? 05/18/2020

It is believed that count(*) expands to all columns and that count(rowid) is faster.  Read on to see why the opposite might be true.

Understanding Views in SQL 04/27/2020

Learn about the concept of views in SQL, and how they work. Read on to see clear examples of how to implement views.

A Look at the Oracle Group-by Bug 04/13/2020

In Oracle 12.2 and later a group-by elimination enhancement can produce wrong results. Read on to see what can be returned and how to work around it.

Addressing the Drop Column Bug in Oracle 18c and 19c 02/24/2020

The latest two versions of Oracle can throw an error when columns are set as unused and then dropped. Learn about this issue and how to address it.

Using Oracle EXPAND_SQL_TEXT 01/13/2020

Database tables are not static entities and sometimes changes can wreak havoc on packages and procedures.  Read on to see how Oracle's expand_sql_text can help solve such issues.

Monitoring Table Change in Oracle 12/23/2019

Learn of possible scenarios to monitor changes when replicating Oracle. Read on to discover the best course of action for moving forward!

A Quick Look at SQL Server Numeric Functions 12/19/2019

If you are wanting to manipulate numeric data with mathematically, then you will wan tot read on to get an overview of the core SQL numeric functions

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Oracle Data Mining: Classification jan.hasller 0 July 5th, 07:19 AM
Find duplicates - Unique IDs Lava 5 July 2nd, 08:30 AM
no matching unique or primary key rcanter 1 April 25th, 12:32 PM
Update values of one table based on condition of values in other table using Trigger Gladiator 3 February 29th, 06:01 PM