Abstract: A data providing apparatus includes circuitry configured to store a query as a candidate query in a first memory in association with an execution plan and store data in a second memory when receiving the execution plan and the data from a database server in response to transmitting the query to the database server, perform searching the first memory for a first candidate query having content corresponding to content of a first query in response to receiving the first query from a first request source, when the first candidate query is detected by the searching, select a first execution plan associated with the first candidate query by referring to the first memory, extract specific data from the second memory on the basis of the selected first execution plan, and transmit the specific data to the first request source.

Abstract: This convoy travel control apparatus includes: a communication portion; a travel control portion; and a joining control portion, wherein when an own vehicle is travelling in convoy, if the communication portion has received, from an independent vehicle not incorporated in group of convoy vehicles travelling in convoy, request information to incorporate the independent vehicle into the group of convoy vehicles, then the joining control portion determines a positional relationship between a position of the group of convoy vehicles and a position of the independent vehicle, and wherein according to the determined positional relationship, then the joining control portion exercises control, which is for incorporating the independent vehicle into the group of convoy vehicles, on the group of convoy vehicles via the communication portion.

Abstract: A data providing apparatus includes circuitry configured to store a query as a candidate query in a first memory in association with an execution plan and store data in a second memory when receiving the execution plan and the data from a database server in response to transmitting the query to the database server, perform searching the first memory for a first candidate query having content corresponding to content of a first query in response to receiving the first query from a first request source, when the first candidate query is detected by the searching, select a first execution plan associated with the first candidate query by referring to the first memory, extract specific data from the second memory on the basis of the selected first execution plan, and transmit the specific data to the first request source.

Abstract: A convoy travel control apparatus includes: a communication portion; a travel control portion; and a joining control portion, wherein when an own vehicle is travelling in convoy while being incorporated in a group of convoy vehicles travelling in convoy, if the communication portion has received, from an independent vehicle not incorporated in the group of convoy vehicles travelling in convoy, request information to incorporate the independent vehicle into the group of convoy vehicles, then the joining control portion determines a positional relationship between a position of the group of convoy vehicles and a position of the independent vehicle, and wherein if the independent vehicle is travelling along a side of the group of convoy vehicles, then in order to incorporate the independent vehicle into the group of convoy vehicles, the joining control portion exercises control on the group of convoy vehicles via the communication portion.

Abstract: A convoy travel control apparatus includes: a communication portion; a travel control portion; and a joining control portion, wherein when an own vehicle is travelling in convoy while being incorporated in a group of convoy vehicles travelling in convoy, if the communication portion has received, from an independent vehicle not incorporated in the group of convoy vehicles travelling in convoy, request information to incorporate the independent vehicle into the group of convoy vehicles, then the joining control portion determines a positional relationship between a position of the group of convoy vehicles and a position of the independent vehicle, and wherein if the independent vehicle is travelling along a side of the group of convoy vehicles, then in order to incorporate the independent vehicle into the group of convoy vehicles, the joining control portion exercises control on the group of convoy vehicles via the communication portion.

Abstract: This convoy travel control apparatus includes: a communication portion; a travel control portion; and a joining control portion, wherein when an own vehicle is travelling in convoy, if the communication portion has received, from an independent vehicle not incorporated in group of convoy vehicles travelling in convoy, request information to incorporate the independent vehicle into the group of convoy vehicles, then the joining control portion determines a positional relationship between a position of the group of convoy vehicles and a position of the independent vehicle, and wherein according to the determined positional relationship, then the joining control portion exercises control, which is for incorporating the independent vehicle into the group of convoy vehicles, on the group of convoy vehicles via the communication portion.