Accurate cardinality estimation of substring queries, which are commonly expressed using the SQL LIKE predicate, is crucial for query optimization in database systems. While both rule-based methods ...
Abstract: In this paper, we tackle a novel type of interesting queries - shortest unique substring queries. Given a (long) string S and a query point q in the string, can we find a shortest substring ...
I have a column of data with values resembling this: HL7_Result_for_Message_ID_123Q324343.hl7 I need to grab that ID number (in bold), the challenge being that it can be any and all lengths. I have ...
A report about a warrantless surveillance program detailed new limits imposed since 2021, but it did not provide a number for how often the F.B.I. searched it for Americans’ information in 2022. By ...
/***** This query was used to find unique file directories in a table of over 100 million records. The query ran in about 7 seconds. *****/ /***** This modified substring function works just like a ...
Query acceleration supports an ANSI SQL-like language for expressing queries over blob contents. The query acceleration SQL dialect is a subset of ANSI SQL, with a limited set of supported data types, ...
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