摘要:
原来: CREATE EXTERNAL TABLE csvtable2( symbol string, tickSequence string, timeStamp string, tickdata STRUCT< BID3_SIZE: string, ASK10_SIZE: string> ) R 阅读全文
摘要:
csv 文件拖进 notepad++ 然后 全选剪切 => “编码” => UTF8编码 => 粘贴 => 保存 hdfs dfs -rm /app/data/exam/meituan_waimai_meishi.csv hdfs dfs -put /opt/data/quizz/meituan_w 阅读全文