"Fossies" - the Fresh Open Source Software Archive

Member "drizzle-7.1.36-stable/docs/indexes.rst" (6 May 2012, 771 Bytes) of package /linux/misc/old/drizzle-7.1.36-stable.tar.gz:


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Indexes

To quote wikipedia, "An index is a data structure that improves the speed of data retrieval operations on a database table at the cost of slower writes and increased storage space. Indexes can be created using one or more columns of a database table, providing the basis for both rapid random lookups and efficient access of ordered records. The disk space required to store the index is typically less than that required by the table (since indexes usually contain only the key-fields according to which the table is to be arranged, and exclude all the other details in the table), yielding the possibility to store indexes in memory for a table whose data is too large to store in memory."

create_index drop_index