![]() Now it may look like things sped up again here, but not really. DB2 V2R3 is also the version that beefed up distributed support with Distributed Relational Database Architecture (DRDA).Īlong comes DB2 Version 3, announced in November 1993 and GA in December 1993. Segmented table spaces quickly became a de facto standard and packages made DB2 application programs easier to support. Two very significant features were added in V2R3: segmented table spaces and packages. Version 2 Release 3 was announced on Septemand became generally available on October 25, 1991. ![]() It also saw the introduction of distributed database support (private protocol) across MVS systems. DB2 V2R2 again bolstered performance in many ways. But it was not until a year later that it became generally available on September 23, 1988. No sooner than V2R1 became GA than IBM announced Version 2 Release 2 on October 4, 1988. Not only did V2R1 provide many performance enhancements but it also signaled the introduction of declarative Referential Integrity (RI) constraints. V2R1 was a significant release in the history of DB2, a bellwether of sorts for when DB2 began to be viewed as capable of supporting mission critical, transaction processing workloads. Here we start to see the gap widening again between announcement and delivery. Version 2 Release 1 was announced in April 1988 and delivered in September 1988. Versions are major changes, whereas releases are not quite as significant as a version. You might notice that IBM delivered “releases” of DB2 back in the 1980s, whereas today (and ever since V3) there have only been versions. DB2 V1R3 saw the introduction of DATE data types. Same thing for Version 1 Release 3, which was announced on and became GA on June 26, 1987. Can you imagine waiting only a month for a new release of DB2 these days? But that is how it happened back then. Version 1 Release 2 was announced on Februand was released for general availability a month later on March 7, 1986. ![]() Early releases of DB2 were viewed by many as an “information center” DBMS, not for production work, like IMS was. I wonder if it was ready on April 1st but not released because of April Fool’s Day? Initial DB2 development focused on the basics of making a relational DBMS work. back to the wild and woolly 1980s! And watch our favorite DBMS, DB2, grow up over time.ĭB2 Version 1 Release 1 was announced on June 7, 1983, and it became generally available on Tuesday, April 2, 1985.
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