When writing complex aggregations in SQL, you will encounter situations where you want to further process data that has already been aggregated. There are two ways to do this: subqueries and CTEs ...

SlothDB is a from-scratch C++20 embedded SQL database in active development. Same model as DuckDB and SQLite: query Parquet, CSV, JSON, Arrow, Avro, SQLite, and Excel files directly with SQL, ...

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SQL is a tool that is widely used in the manipulation of data and featuring in the relational database. They are applied in querying, manipulating as well as reporting data and it is commonly used by ...

Part of the SQL Server 2022 blog series. Today, we announced the general availability of SQL Server 2022, the most Azure-enabled release of SQL Server yet, with continued innovation across performance ...

REM We can get "CPU Usage" from the metric_name "Host CPU Utilization (%)" of the view "DBA_HIST_SYSMETRIC_SUMMARY". REM Next we use the analytic function "LAG () OVER()" to get the prior snap_id from ...

Data has become the lifeblood of the enterprise. It’s the foundation for keen insight and effective decisions that lead to business growth. One of our primary design goals for SQL Server 2016 was to ...