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ORA-19250: XQTY0030 – too many values to validate expression ORACLE 报错 故障修复 远程处理

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ORA-19250: XQTY0030 – too many values to validate expression ORACLE 报错 故障修复 远程处理

文档解释

ORA-19250: XQTY0030 – too many values to validate expression

Cause: The argument of a validate expression returned more than one element or document node.

Action: Fix the argument of the validate expression to return a single element or document node.

ORA-19250的XQTY0030错误代码是指”这个表达式有太多的值,无法通过验证”警告。

官方解释

当查询中的表达式有太多的值时,就会出现此错误。此表达式的值数量超过Oracle数据库支持的内存限制,因此将其视为无法分析的未知操作符。

常见案例

当执行SQL查询时,如果查询表达式中含有太多值时就会发生此错误。

一般处理方法及步骤

1.改变表达式以降低数量

2.适当地增加数据库存储内存限制。

3.将大量数据移动到一个分区或者表,可以有效地减少这种数量的限制。

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ORA-19250: XQTY0030 – too many values to validate expression ORACLE 报错 故障修复 远程处理

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