http://blog.csdn.net/pipisorry/article/details/53320669 pyspark.sql.SQLContext Main entry point for DataFrame and SQL functionality. [pyspark.sql.SQLContext] 皮皮blog sql oracle， pyspark.sql.DataFrame A distributed collection of data grouped into named c

select lower('HELLO') from dual;select lpad(100, 5, '*') from dual;select sysdate + 1 / 24 from dual;select last_day(sysdate) from dual;select to_char(sysdate,'year-month-DD day HH24:MI:SS') from dual; 轉載于:https://www.cnblog