DATABASE FUNDAMENTALS
BASICS OF BIG DATA
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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RDBMS
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HIVE
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HADOOP
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HBASE
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Detailed explanation-1: -ACID is an acronym that stands for atomicity, consistency, isolation, and durability. Together, these ACID properties ensure that a set of database operations (grouped together in a transaction) leave the database in a valid state even in the event of unexpected errors.
Detailed explanation-2: -RDBMS follows the ACID property, NoSQL databases are “BASE” Systems.
Detailed explanation-3: -In the context of transaction processing, the acronym ACID refers to the four key properties of a transaction: atomicity, consistency, isolation, and durability. Atomicity. All changes to data are performed as if they are a single operation. That is, all the changes are performed, or none of them are.
Detailed explanation-4: -Which Databases are ACID compliant? One safe way to make sure your database is ACID compliant is to choose a relational database management system. These include MySQL, PostgreSQL, Oracle, SQLite, and Microsoft SQL Server.
Detailed explanation-5: -The most common implementation of ACID transactions is done via locks. Data is locked (not accessible by another transaction) until a transaction completes or fails, to guarantee atomicity, isolation, and consistency. To guarantee durability, databases often implement write-ahead logs.