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HammerDB is a database load testing and benchmarking tool. HammerDB is used to create a test schema, load it with data and simulate the workload of multiple virtual users against the database for both transactional and analytic scenarios.
TPC-C, short for Transaction Processing Performance Council Benchmark C, is a benchmark used to compare the performance of online transaction processing (OLTP) systems. This industry standard was published in August 1992, and eventually replaced the earlier TPC-A, which was declared obsolete in 1995.
This plan table will return the cost and time for executing a query. Oracle offers two optimization approaches: CBO or Cost Based Optimization; RBO or Rule Based Optimization; RBO is slowly being deprecated. For CBO to be used, all the tables referenced by the query must be analyzed. To analyze a table, a DBA can launch code from the DBMS_STATS ...
The SQL specification defines what an "SQL schema" is; however, databases implement it differently. To compound this confusion the functionality can overlap with that of a parent database. An SQL schema is simply a namespace within a database; things within this namespace are addressed using the member operator dot ".". This seems to be a ...
Combo Benchmark Compare to Compete Online Benchmarking web-based database This web-based database is suitable for groups of competitors to benchmark individual performance against group performance. All process and performance benchmarks can be processed in this software, providing interesting analysis tools and complete benchmarking report ...
The mapping is done by defining classes that correspond to the tables in the database, and containing all or a subset of the columns in the table as data members. [13] The correspondence, along with other relational model attributes such as primary keys, are specified using LINQ to SQL-defined attributes. For example,
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[6] [7] TimescaleDB is a relational database [8] and supports standard SQL queries. Additional SQL functions and table structures provide support for time series data oriented towards storage, performance, and analysis facilities for data-at-scale. [9] One of the key features of TimescaleDB is its performance, which has been compared to ...