HackerRank isn’t just a random collection of problems; they’ve organized their SQL section pretty well. You can find ...

The 'New SQL Requirement' function of Feisuan JavaAI, based on powerful natural language processing and SQL syntax parsing ...

DBeaver is a free, open-source, cross-platform SQL client and database administration tool. It is designed to support a wide variety of SQL and NoSQL databases, including MySQL and PostgreSQL. Its key ...

SQL, the Structured Query Language, is a cornerstone skill for anyone working with data. To master this powerful language, consistent practice is crucial. We present a curated list of 12 top-notch ...

SELECT COUNT(*) FROM v0 WHERE (CURRENT_DATE, c0) != (CAST(NULL AS TEXT), '0'); SELECT SUM(CASE WHEN (CURRENT_DATE, c0) != (CAST(NULL AS TEXT), '0') THEN 1 ELSE 0 END) FROM v0; The two SQL queries have ...

A common SQL habit is to use SELECT * on a query, because it’s tedious to list all the columns you need. Plus, sometimes those columns may change over time, so why not just do things the easy way? But ...