Tag: DB2

Is it better to use a single TIMESTAMP column or two columns, one DATE and the other TIME? Craig Mullins advises in latest blog post.

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Datavail consultant Craig Mullins blog on Null Follow-up.

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Understanding what nulls are, and how best to use them, can help you to create usable db2 databases and design useful and correct queries in your db2 applications.

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How do organizations manage their database infrastructure? Craig Mullins takes on db2 best practices in new blog post.

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As with most Db2 (and, indeed, IT) issues, the correct answer is "it depends!" Let's dig a bit deeper to explain what I mean.

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CASE statements are very powerful and you should use them when you can to create elegant and optimal SQL in your DB2 applications.

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Most DBAs have struggled with the pros and cons of choosing one data type over another. This blog post discusses different situations.

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Craig Mullins' blog post maps out the process for developers who need to retrieve a limited number of qualifying rows from a table.

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The dirty read capability can provide relief to concurrency problems for faster performance. Make sure to understand the implications of the UR isolation level.

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It is important for DB2 DBAs and application programmers to know the four isolation levels and their impact on SQL in order to control concurrency and locking.

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