What is a good TempDB FileGrowth value? Here are simple size-based guidelines, from 10 MB growth for small files to 10 percent for large ones.
Readable IDs: A Bounded Computed Invoice Number
Create readable IDs with a computed invoice number while retaining the numeric key. Enforce the six-digit domain and plan format changes before growth.
XQuery distinct-values: Deduplicate Atomic Values, Not Nodes
XQuery distinct-values removes repeated atomic values rather than selecting representative source nodes. I rebuild a small sorted XML result from repeated text. The example also keeps an empty document in view.
ACOS: Check the Cosine Domain Before Calculating Angles
ACOS calculates an angle from a supported cosine ratio. Keep invalid and missing inputs visible while displaying valid radians at a chosen scale.
PERCENT_RANK Versus CUME_DIST: What Ties Change
PERCENT_RANK versus CUME_DIST answers different ranking questions. Keep peers intact and compare missing scores and singleton groups.
NOT and NULL: Unknown Does Not Become True
NOT and NULL do not create a complete two-way classification. State whether missing values belong in a filter or a separate reporting category.
Writing a Good Technical Blog Post
A technical blog post works when it solves one problem with tested code, clear assumptions, a readable result, and honest limits.