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IBM DB2 and the Mainframe Future of SQL
IBM DB2 carried the relational model and SQL into the mainframe center of enterprise computing, proving that relational databases could support large, mission-critical transaction workloads.
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IBM DB2 carried the relational model and SQL into the mainframe center of enterprise computing, proving that relational databases could support large, mission-critical transaction workloads.
IBM's CP/CMS and VM lineage showed that one physical mainframe could present many isolated virtual computers, turning virtualization into a practical operating-system architecture decades before modern cloud computing.