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ORA-23668: Column “string” does not have a numeric data type. ORACLE 报错 故障修复 远程处理

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ORA-23668: Column “string” does not have a numeric data type. ORACLE 报错 故障修复 远程处理

文档解释

ORA-23668: Column “string” does not have a numeric data type.

Cause: The specified column did not have a numeric data type. Delta conflict resolution requires numeric columns.

Action: Check the data type of the column and specify only numeric columns.

ORA-23668错误是在用户尝试把非数值类型的列添加到数值表达式中时发生的,根据文字描述,触发此错误的原因是列“string”不具备数值类型。

官方解释

ORA-23668:“%s”列不具备数值类型

此错误表明尝试将非数值类型列添加到数值表达式中。 你必须将所有列转换为数值类型,然后才能使用它们进行表达。

常见案例

ORA-23668错误通常发生在用户尝试将特定列添加到数值表达式中时,但该列类型不是数值类型时。 例如:

SELECT NUMBER_COLUMN + STRING_COLUMN

FROM TABLE;

此查询将引发此错误,因为STRING_COLUMN不是数值类型。

一般处理方法及步骤

要正确处理ORA-23668错误,必须使用一些数据类型转换来将所有列转换为数值类型。 例如:

SELECT NUMBER_COLUMN + TO_NUMBER(STRING_COLUMN)

FROM TABLE;

TO_NUMBER函数可帮助您将字符串转换为数字,从而解决ORA-23668错误。

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ORA-23668: Column “string” does not have a numeric data type. ORACLE 报错 故障修复 远程处理

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