Query Execution
Query execution refers to the process of running a query on a database management system (DBMS) to retrieve data or perform an action. In data science and artificial intelligence, query execution is a critical step in data analysis and machine learning. It involves translating a high-level query or command into low-level instructions that the DBMS can understand and execute efficiently. The query execution process includes several stages, such as parsing, optimization, and actual execution. During parsing, the DBMS checks the syntax and semantics of the query and creates a query tree. In optimization, the DBMS analyzes the query tree and generates an execution plan that minimizes the cost and time of executing the query. Finally, in actual execution, the DBMS retrieves the data from the storage and applies any necessary operations, such as filtering, sorting, or aggregating. Query execution performance is a key factor in data processing and analysis, as it can affect the speed, scalability, and accuracy of the results.
Your Previous Searches
Random Picks
- SLAs: SLAs (Service Level Agreements) are contractual agreements between a service provider and a customer that define the level of service expected from the provider. In the context of data science and artificial intelligence, SLAs are used to d ... Read More >>
- Hexadecimal Digits: Hexadecimal digits are a numbering system that uses 16 digits to represent numbers, where each digit can have a value from 0 to 15. In data science and artificial intelligence, hexadecimal digits are commonly used to represent colors in ima ... Read More >>
- Risk Factors: Risk factors refer to the variables that increase the likelihood of an event or outcome occurring. In data science, risk factors are used to identify the variables that contribute to a particular outcome or event. These factors can be used ... Read More >>
Top News
New college grad? Here's what experts say you should know about AI....
We asked three experts what fresh college graduates can do to prepare as artificial intelligence changes how Americans work. Here's what they said....
News Source: CBS News on 2025-06-06
Senate Republicans revise ban on state AI regulations in bid to preserve controv...
Senate Republicans have made changes to their party’s sweeping tax bill in hopes of preserving a new policy that would prevent states from regulating artificial intelligence...
News Source: ABC News on 2025-06-06
Use of Community Notes on Elon Musk's X has plummeted in 2025...
Half as many crowdsourced Community Notes were created in May than were created in January....
News Source: NBC News on 2025-06-06
Film Festival showcases what artificial intelligence can do on the big screen...
Artificial Intelligence’s use in filmmaking is growing...
News Source: ABC News on 2025-06-06
Can AI be held accountable? AI ethicist on tech giants and the AI boom...
What is the future of AI and efforts to regulate its harms? Marc Lamont Hill speaks to AI ethicist Rumman Chowdhury....
News Source: Al Jazeera English on 2025-06-06