Database - Fetch Size

Data System Architecture


Buffer concept in database

The number of rows that should be fetched from the database when more rows are needed. (or sent, in the case of inserts, updates and deletes) by the server at a time.

Application Parameters

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Buffers are catalog containers of a (fixed|variable with max) amount of data or operations. memoryblocksdisk Without buffer, each read or write request is handled directly by the underlying layer (OS,...
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RDBMS - Cursor (Iterator)

A cursor represents data returned by a query. In computer science, a database cursor is a control structure that enables traversal over the records in a database. A cursor: contains tabular data ...
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SQL PLUS - Array size

The array size is a configuration variable which set the fetch size. Valid values are 1 to 5000. A large value increases the efficiency of queries and subqueries that fetch many rows, but requires more...

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