Total jobs = 1Launching Job 1 out of 1Number of reduce tasks determined at compile time: 1In order to change the average load for a reducer (in bytes): set hive.exec.reducers.bytes.per.reducer=<number>In order to limit the maximum number of reducers: set hive.exec.reducers.max=<number>In order to set a constant number of reducers: set mapreduce.job.reduces=<number>Interrupting... Be patient, th...
1.首先看下oracle中如何实现调用标准sqlcreate or replace function test_hkRETURN dateISv1 DATE;BEGINselect sysdate into v1 from dual;RETURN v1;END test_hk;/--调用方法1:语句块调用set serveroutput ondeclarevar_date date;BEGINvar_date:=test_hk();dbms_output.put_line(var_date);END;--调用方法2：selectSELECT test_hk() FROM dual;--其他调用方法参考 https://blog.csdn.net/qq_30934019/article/details/805575762....