Speaker
Mr
Randolph J. Herber
(FNAL)
Description
(For the SAMGrid Team)
SQLBuilder's purpose is to translate selection criteria in a high-level form to SQL
query statements. The internal design is intended to permit easy changes to the
selection criteria available and to permit retargeting the specific dialect of SQL
generated. The initial target language will be Oracle 9i SQL. The input language
will be defined in a formal grammar and internal structure will use compiler
construction technology. The initial queries will return sets of file identifiers.
The selection criteria high-level format is named, parameterized, possibly with
multiple parameters tests on the metadata combined by boolean operators and
intermediate sets may be combined by set operators. There will a capacity to include
previous named criteria with a check for infinite inclusion recursion.
Primary author
Mr
Randolph J. Herber
(FNAL)
