mysql - 连接 MySQL 和 R

Question

这就是我尝试将 MySQL 连接到 R 的方式。

db <- dbConnect(MySQL(), user='username', password='pwd',dbname=dbx, host = 'local', port = 3306)

但是我收到了这个错误:

Error in .local(drv, ...) : Failed to connect to database: Error: Plugin caching_sha2_password could not be loaded: The specified module could not be found.

怎么办？

Answer 1

您可以创建一个函数来检索查询。

library(RMySQL)
sqlQuery <- function (query) {

        # creating DB connection object with RMysql package
        DB <- dbConnect(MySQL(), user="user", password="password",
                        dbname="databaseName", host="host")

        # close db connection after function call exits
        on.exit(dbDisconnect(DB))

        # send Query to obtain result set
        rs <- dbSendQuery(DB, query)

        # get elements from result sets and convert to dataframe
        result <- fetch(rs, -1)

        # return the dataframe
        return(result)
}

然后就是:

new_dataframe <- sqlQuery("SELECT * from table")

希望对你有帮助