โ Scribed by Richard P. Mount
No coin nor oath required. For personal study only.
I review the role of commercial and home-made database systems in HEP experiments. I draw heavily on the qualitative and quantitative evaluations performed by the L3 offline computing group, but I also review some of the activities of other experiments. I consider to what extent features, such as query language, Fortran interface, efficiency, portability, robustness, security and cheapness, are needed for various applications and are offered by existing systems. The commercial systems ORACLE and SQL/DS, and the HEP-made 'access methods' KAPACK and ZEBRA-RZ will be discussed in some detail.
๐ SIMILAR VOLUMES
In order to cope with the complexity of the online control system, the DELPHI experiment at CERN (Aarnio et al., DELPHI Collaboration, Nucl. Instr. & Methods Phys. Res. A 303 (1991) 233-276) developed, in collaboration with the CERN OC group, a new concept for the coding of the control logic. In thi