veergupõhiste

veergupõhiste refers to a database storage method where data is organized into columns rather than rows. In a traditional row-based database, all the data for a single record or entry is stored together sequentially. In contrast, a column-based database stores data for each column together. This means that all the values for a specific column are stored contiguously, followed by all the values for the next column, and so on.

This architectural difference has significant implications for performance, particularly in analytical workloads. When querying data, column-based systems can be much more efficient because they only need to read the specific columns required for the query, rather than reading entire rows that may contain a lot of unnecessary data. This is especially beneficial for operations that involve aggregating data across large datasets, such as calculating sums, averages, or counts over a particular attribute.

Column-based storage is often preferred for data warehouses and business intelligence applications where read-heavy operations and complex analytical queries are common. Examples of popular column-based databases include Amazon Redshift, Google BigQuery, and Apache Cassandra (though Cassandra is often described as a hybrid). The efficiency gains come at a potential cost, as inserting or updating individual records can sometimes be less performant than in row-based systems, as data across multiple columns needs to be accessed and modified.