US Patent 12019644 Methods and systems for performing database operations

Methods for performing a query operation on a database comprise selecting a connection to the database from a plurality of connections to the database, the connections being arranged within a data structure and each having a predetermined number of query slots; waiting for a query slot to be available on the selected connection; in response to determining that the predetermined number of query slots include at least one available query slot, accessing one of the at least one available query slots; reordering the plurality of connections within the data structure; causing the query operation to execute at least partially using the accessed query slot; and releasing the accessed query slot.