Azure SQL has introduced the ability to set firewall rules at the database level. A database firewall is different than a server firewall which can be configured via the Azure Portal. The database firewall gives you the ability to not only limit connections at the...
Sometimes a client calls for help with a performance problem. On one particular Tuesday, a client called about a long-running query. Actually they basically said "What's wrong with DB2? my query is running long! Are there lock timeouts happening?" The query came from...
What is Lock Escalation? When LOCKLIST and MAXLOCKS are not set to AUTOMATIC, or total system memory is constrained, lock escalation can occur. When there is not enough room in the lock list to store additional locks that an application needs to continue processing,...
Maintenance in General is a necessity for SQL Server. No different than changing the oil in your car or going to the Doctor for the annual exam. There is going to be times when you are going to need to run maintenance on your server. The tricky part is trying to...
Maintenance in General is a necessity for SQL Server. No different than changing the oil in your car or going to the Doctor for the annual exam. There are going to be times when you need to perform maintenance on your server. The tricky part is trying to determine...
It may be something that's not terribly common to have to do, but that makes it all the more important that we document how to do it. Dropping a schema and all of the objects in that schema used to be tedious and time-consuming. We used to have to look for a large...
When taking a backup of a DB2 LUW database, there are a lot of options to choose from. I like to specify as many as possible to make it clear exactly what I want, even if I am specifying the defaults. Though I very rarely specify the number or size of backup buffers,...
I can't remember the last time a ulimit bit me, but the time has come again. Everyone is used to removing all the limits for the instance ID at this point, I hope, but have you ever considered the ulimits for your fenced user id? The Problem In the DB2 diagnostic log,...
Error Message SQL0964C The transaction log for the database is full. SQLSTATE=57011 or DB21034E The command was processed as an SQL statement because it was not a valid Command Line Processor command. During SQL processing it returned: SQL0964C The transaction log for...
Error Message SQL0968C The file system is full. This is frequently an error that is returned to an application and reported simply as -968 When You Might Encounter This Error Message This error typically is encountered when updating or inserting data, though in some...