原数据:
1、统计标准误差:STDDEV()
select STDDEV(distinct nums),STDDEV(nums) from tmp_1
结果:
2、统计方差:VARIANCE()
select VARIANCE(distinct nums),VARIANCE(nums) from tmp_1
结果:
3、统计平均值:avg()
select avg(distinct nums),avg(nums) from tmp_1
结果:
4、合计值:sum()
select sum(distinct nums),sum(nums) from tmp_1
结果:
5、查询行数count()
select count(distinct nums),count(*),count(nums) from tmp_1
结果:
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6、统计最大值max()
select max(nums) from tmp_1
结果:
7、统计最小值min()
select min(nums) from tmp_1
结果: