Package from the PostgreSQL database using RODBC to query data and weekly data on stock prices
ORDER BY
WHERE
public.stockprice
# connect to the database
sz <- sqlQuery (channel, "
FROM
database a total of 7.086 million lines, data 388MB , index 213MB total 600MB. check the first week of data queries commercial banks scramble for unlimited credit card charges can not waiver on the cake 587 years line with 281ms, after several times of 47ms and 63ms, check on the data line 2846, spending 125ms.