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ORA-30493: The percentile value should be a number between 0 and 1. ORACLE 报错 故障修复 远程处理

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ORA-30493: The percentile value should be a number between 0 and 1. ORACLE 报错 故障修复 远程处理

文档解释

ORA-30493: The percentile value should be a number between 0 and 1.

Cause: A percentile value for PERCENTILE_CONT or PERCENTILE_DISC function is specified out of range.

Action: Specify a value from [0,1].

ORA-30493错误是当使用Oracle函数MEDIAN或PERCENTILE_CONT在数值字段上无效时抛出的错误。

这两个函数的第二个参数是要获取的百分比,必须在0-1之间,小数或整数都可以。

官方解释:

ORA-30493: percentile value must be number between 0 and 1

从字面上解释:

ORA-30493:百分比值必须是0和1之间的数字

常见案例:

假设错误发生在下面的查询中:

SELECT MEDIAN( numeric_column ) PERCENTILE_CONT( numeric_column, 3 ) FROM table_name;

这里,第二个函数使用了非法参数“3”,因为该参数取值必须是0-1之间的数。

正常处理方法及步骤:

为了解决ORA-30493错误,首先要确认数据字段的类型是正确的,然后检查一下百分比参数的取值是否在0-1之间。

例如,为了正确执行上面的查询,我们可以按如下方式更改百分位参数:

SELECT MEDIAN( numeric_column ) PERCENTILE_CONT( numeric_column, 0.3 ) FROM table_name;

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ORA-30493: The percentile value should be a number between 0 and 1. ORACLE 报错 故障修复 远程处理

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