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Centralized catalog in distributed databases can create potential performance bottlenecks due to centralized storage
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Scanning is a technique for implementing joins
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Merge Sort divides the data into multiple parts, sorts the chunks using other algorithms (Quick Sort), and then merges the chunks two by two, so that each recombined part is in order.
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PostgreSQL is not developed and maintained by Microsoft
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Union-based SQL Injection is the process of using the SQL JOIN operator in order to unite multiple tables
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The merging process of runs does not continue indefinitely.
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CascadeType.MERGE means that related entities are merged when the owning entity is merged.
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Snapshot replication is a common method used for asynchronous replication in commercial products
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Role based security models ease rights granting when people change, for example in a company
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With the 'READ UNCOMMITTED' isolation level, transactions cannot read data that has been modified but not yet committed
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