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On which levels locks can be applied?

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Locking can be applied on either of Page, table and table space. In IBM Db2, locks can be applied at different levels to control access and ensure data consistency. The levels at which locks can be applied in Db2 are: Row Level: Locks are applied at the row level, meaning that a specific row of … Read more

How can you classify the locks in DB2?

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Locks can be classified based on size, duration and mode. In DB2, locks can be classified based on various criteria. The most common classification is based on the scope and duration of the lock. Here are the main types of locks in DB2: Shared Locks (S): These locks are used for read operations. Multiple transactions … Read more

Which components manage deadlocks in DB2?

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Locking services are provided by Locking services component known as “Internal Resource Lock Manager” (IRLM) and manages concurrency issues and deadlocks. In IBM Db2, the Deadlock Detector is responsible for managing deadlocks. The Deadlock Detector is a component of the Db2 system that monitors for deadlock situations and takes corrective action when a deadlock is … Read more

What is DB2? Explain

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DB2 also known IBM Db2 is a relational database management system (RDBMS) product form IBM. It is designed to store, analyse and retrieve data efficiently. DB2, developed by IBM, is a family of data management products, including database servers, developed to store, retrieve, and analyze data. It is a relational database management system (RDBMS) that … Read more

Is there any need to create database command in MongoDB?

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You don’t need to create a database manually in MongoDB because it creates automaically when you save the value into the defined collection at first time. In MongoDB, databases are created automatically when you first store data in them. Unlike some traditional relational database systems where you explicitly need to create a database before using … Read more