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The object pool design pattern is used in several places in the standard classes of the .NET Framework. One example is the .NET Framework Data Provider for SQL Server. As SQL Server database connections can be slow to create, a pool of connections is maintained. Closing a connection does not actually relinquish the link to SQL Server.
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A database index is a data structure that improves the speed of data retrieval operations on a database table at the cost of additional writes and storage space to maintain the index data structure. Indexes are used to quickly locate data without having to search every row in a database table every time said table is accessed.
The Today Show. Kendra Wilkinson claps back at criticism of her body: 'I'm not that girl I was' Entertainment. The Today Show. Carrie Underwood says she is 'honored' to be performing at Trump's ...
Global efforts to address climate change will be dealt a severe blow if U.S. President-elect Donald Trump again pulls the country out of the Paris Agreement, the EU's head of climate change policy ...
Penn State University is playing its first game in the College Football Playoff in just a few days and is facing a shakeup in the quarterback room thanks to the sport’s wide-open transfer rules.
The terms data dictionary and data repository indicate a more general software utility than a catalogue. A catalogue is closely coupled with the DBMS software. It provides the information stored in it to the user and the DBA, but it is mainly accessed by the various software modules of the DBMS itself, such as DDL and DML compilers, the query optimiser, the transaction processor, report ...
In a database, a table is a collection of related data organized in table format; consisting of columns and rows. In relational databases, and flat file databases, a table is a set of data elements (values) using a model of vertical columns (identifiable by name) and horizontal rows, the cell being the unit where a row and column intersect. [1]