Seven SQL Performance-Killers to Avoid in Db2

Seven SQL Performance-Killers to Avoid in Db2

How Db2 Handles SQL SQL is a powerful language in the hands of the right RDBMS. One of SQL’s strengths is that you specify what data you want returned without specifying what file, disk, san, or sector that data is stored on. Because we describe the result set...
Upgrading the SHA-1 certificate in SQL Server

Upgrading the SHA-1 certificate in SQL Server

For some time now, SHA-1 has not been allowed to be issued from CA’s with few exceptions. This was due to a large catalog of evidence suggesting that SHA-1 was less secure than acceptable. Starting with SQL 2016 self-signed certificates are issued using SHA-2,...
Dropping Indexes to Improve Db2 Performance

Dropping Indexes to Improve Db2 Performance

Indexes are Good for Performance Generally speaking, DBAs and developers spend a fair amount of their performance time trying to find which indexes to add to a database to improve performance. If a specific query is having performance problems, one of the strongest...