What should you avoid when constructing queries in PROC FEDSQL?

When constructing queries in PROC FEDSQL, it’s important to focus on creating queries that are efficient and easy to understand. Overly complex logic can lead to queries that are not only difficult to manage and debug but also negatively impact performance. The complexity might result in longer execution times, making the queries harder to optimize. Simple, clear queries help ensure that the logic is straightforward, which can reduce the likelihood of mistakes and runtime errors.

Using inline views, for instance, is a valid practice in PROC FEDSQL and can be beneficial for structuring complex data retrievals in a more manageable way. Following SQL standards is generally favorable, as it ensures that your queries are consistent and can be understood by others familiar with standard SQL practices. Runtime errors can be a concern when there are issues in query construction, but they are often a result of poorly structured queries rather than an inherent flaw in a common practice.

In summary, while complexity and obscure logic might initially seem to provide more power or flexibility, they can often obfuscate the intent of the query and lead to increased risk of errors and inefficiency. It’s best to maintain clarity and simplicity in your queries whenever possible.