A computer system for accessing information, comprising: memory having stored therein computer-executable instructions; and a processor executing said computer-executable instructions including: establishing a row store database for storing data, wherein each row of said row store database comprises a plurality of attributes, wherein said data in said row store database is current to a temporal point in time; establishing a column store database comprising data structured to satisfy received analytic queries; and beginning from an initial state of said column store database, for each subsequently received analytic query, importing a targeted amount of data from a corresponding temporal state of said row store database into said column store database to satisfy said corresponding subsequently received analytic query; wherein said importing a targeted amount of data of said computer-executable instructions comprises: receiving a first analytic query, wherein said first analytic query is directed to a queried range of primary key attributes for a referenced attribute vector corresponding to a referenced attribute in said plurality of attributes; determining if a covered range of said primary key attributes in said referenced attribute vector is within said queried range of primary key attributes; and when said covered range is not within said queried range, importing said targeted amount of data from said row store database during execution of said first analytic query to enhance said covered range in order to encompass said queried range. memory having stored therein computer-executable instructions; and a processor executing said computer-executable instructions including: establishing a row store database for storing data, wherein each row of said row store database comprises a plurality of attributes, wherein said data in said row store database is current to a temporal point in time; establishing a column store database comprising data structured to satisfy received analytic queries; and beginning from an initial state of said column store database, for each subsequently received analytic query, importing a targeted amount of data from a corresponding temporal state of said row store database into said column store database to satisfy said corresponding subsequently received analytic query; establishing a row store database for storing data, wherein each row of said row store database comprises a plurality of attributes, wherein said data in said row store database is current to a temporal point in time; establishing a column store database comprising data structured to satisfy received analytic queries; and beginning from an initial state of said column store database, for each subsequently received analytic query, importing a targeted amount of data from a corresponding temporal state of said row store database into said column store database to satisfy said corresponding subsequently received analytic query; wherein said importing a targeted amount of data of said computer-executable instructions comprises: receiving a first analytic query, wherein said first analytic query is directed to a queried range of primary key attributes for a referenced attribute vector corresponding to a referenced attribute in said plurality of attributes; determining if a covered range of said primary key attributes in said referenced attribute vector is within said queried range of primary key attributes; and when said covered range is not within said queried range, importing said targeted amount of data from said row store database during execution of said first analytic query to enhance said covered range in order to encompass said queried range. receiving a first analytic query, wherein said first analytic query is directed to a queried range of primary key attributes for a referenced attribute vector corresponding to a referenced attribute in said plurality of attributes; determining if a covered range of said primary key attributes in said referenced attribute vector is within said queried range of primary key attributes; and when said covered range is not within said queried range, importing said targeted amount of data from said row store database during execution of said first analytic query to enhance said covered range in order to encompass said queried range.