@cnstlungu

BigQuery Saves Your Query Results — Here's How to Find Them

Mar 5 · 1 min read · Ever run a heavy BigQuery SQL query, processed gigabytes of data — and then accidentally closed the tab or forgot to save the results? 😬 Don't re-run it. Your results are still there. BigQuery automa

Parameters in BigQuery

Feb 7 · 1 min read · You can use query parameters in BigQuery hashtag#SQL (now in the console as well!) — but how are they different from variables, and when should you use each? Both parameters and variables act as place

Flattening JSON arrays in BigQuery

Dec 7, 2025 · 1 min read · I've noticed that a new JSON function has been added (in Preview) in BigQuery SQL - JSON_FLATTEN(). It allows us to flatten JSON arrays and return a single flat ARRAY, no matter how many nested levels there are. So where is this actually useful?➡️ Ha...

Using LAST_VALUE with STRUCTS

Oct 5, 2025 · 1 min read · Even an “empty” STRUCT is still technically something. Not the same as a standalone NULL value. This is why, if you work with STRUCTs in SQL and try to find the latest non-empty struct using LAST_VALUE(...) IGNORE NULLS, you’ll notice it doesn’t help...

Table grain quick validation with SQL

Oct 4, 2025 · 1 min read · I was doing some exploratory data analysis on a number of tables I didn’t have much information about and, unfortunately, didn’t know their grain. I needed a quick way to validate my assumptions about the table grain, identify contradicting observati...