"Database queries" refer to the process of retrieving data from a database using a structured query language such as SQL (Structured Query Language). Database queries allow users to extract, filter, sort, and summarize specific information from a database to obtain answers to particular questions or requirements.
Typical functions of software in the "database queries" area are:
Query language support: Support for structured query languages like SQL to create and execute complex database queries.
Data extraction: Ability to extract data from one or more tables in the database to retrieve specific information.
Filtering and sorting: Capability to filter and sort data based on specific criteria to identify relevant records.
Aggregation and grouping: Aggregating data to create summaries or statistics and grouping data based on common characteristics.
Joins and relationships: Performing joins between different tables to combine data from multiple tables and enable complex queries.
Parameterized queries: Support for parameterized queries where users can specify parameters or variables to create dynamic queries.
Result visualization: Visualizing query results in the form of tables, charts, or graphs to facilitate analysis and interpretation.