Lookup Associative Array: Difference between revisions
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=== 2011 === | === 2011 === | ||
* http://pic.dhe.ibm.com/infocenter/optsol/v1/index.jsp?topic=%2Fcom.ibm.nex.optimd.common.doc%2F05colmap%2Fopcommon-r-hash_lookup_function.html | * http://pic.dhe.ibm.com/infocenter/optsol/v1/index.jsp?topic=%2Fcom.ibm.nex.optimd.common.doc%2F05colmap%2Fopcommon-r-hash_lookup_function.html | ||
** The Hash Lookup Function obtains the value for a destination column from a lookup table, according to a hashed value derived from a source column. The Hash Lookup Function allows you to consistently mask data when you use the same source and lookup tables in any environment. | ** The Hash Lookup Function obtains the value for a destination column from a lookup table, according to a hashed value derived from a source column. The Hash Lookup Function allows you to consistently mask data when you use the same source and lookup tables in any environment. | ||
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Latest revision as of 12:24, 2 August 2022
A Lookup Associative Array is an Associative Array that can solve a set membership membership task.
- Context:
- It can support a Deterministic Set Membership Test.
- …
- Counter-Example(s):
- a Cache.
- a Hash Function.
- See: Bloom Filter, Reverse Lookup Hash.
References
2011
- http://pic.dhe.ibm.com/infocenter/optsol/v1/index.jsp?topic=%2Fcom.ibm.nex.optimd.common.doc%2F05colmap%2Fopcommon-r-hash_lookup_function.html
- The Hash Lookup Function obtains the value for a destination column from a lookup table, according to a hashed value derived from a source column. The Hash Lookup Function allows you to consistently mask data when you use the same source and lookup tables in any environment.