Oliver Koeth

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The Blink project's ambitious goal is to answer all Business Intelligence (BI) queries in mere seconds, regardless of the database size, with an extremely low total cost of ownership. Blink is a new DBMS aimed primarily at read-mostly BI query processing that exploits scale-out of commodity multi-core processors and cheap DRAM to retain a (copy of a) data(More)
AIMS We sought to assess the effect of clopidogrel on clinical events 1 year after discharge in survivors of ST-elevation myocardial infarction (STEMI) in clinical practice. METHODS AND RESULTS We analysed data of consecutive survivors of acute STEMI and either concomitant therapy with aspirin or aspirin plus clopidogrel at discharge, who were(More)
Takotsubo cardiomyopathy was first described in Japan and is characterized by transient left ventricular apical ballooning in the absence of a significant coronary artery disease.Caused by the clinical presentation including chest pain, electrocardiographic changes and elevated myocardial markers this syndrome is frequently misdiagnosed as an acute coronary(More)
Takotsubo cardiomyopathy (TCM) is usually characterized by transient left ventricular apical ballooning. Due to the clinical symptoms which include chest pain, electrocardiographic changes, and elevated myocardial markers, Takotsubo cardiomyopathy is frequently mimicking ST-elevation myocardial infarction in the absence of a significant coronary artery(More)
The recent version of the IBM DB2 Analytics Accelerator introduces the High Performance Storage Saverasanewproduct feature. It pavesanother part of the way towards integrating OLTP and OLAP into as ingle database system. We present the technical details of this approach, which integrates archiving functionality into the DB2 relational database systems with(More)
The IBM DB2 Analytics Accelerator (IDAA) implements the vision of a universal relational DBMS that processes OLTP and analytical-type queries in a single system, but on two fundamentally different query engines. Based on heuristics in DB2 for z/OS, the DB2 optimizer decides if a query should be executed by "mainline" DB2 or if it is beneficial to offload it(More)
INTRODUCTION Tako-tsubo cardiomyopathy (stress-induced cardiomyopathy or transient left ventricular ballooning) is characterized by clinical suspicion of an acute myocardial infarction with transient apical or midventricular dyskinesia of the left ventricle without significant coronary stenosis on angiography. The etiology of this disease remains obscure.(More)
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