Oracle9i offers some great tools to make it easy to view the execution plan and trace information for a SQL statement. Prior to Oracle8i, you had to create a plan table and execute special syntax to ...

I hope this is the right place for this type of question. I apologize for the question length but to try and be complete I'll include a bit of background.<BR><BR>I am currently working on a project ...

Hi I need some help with a select statement in MS SQL. I have a table that need to check if there duplicate items there. The problem is that each items is based off of 4 fields in the table. Here is ...

Inside a relational database management system, the princi­pal persisted data structure is considered a logical relation. Operations performed against that data within the RDBMS result in a logical ...