Question

我最近开始使用ucanaccess连接到访问数据库（很明显），直到现在一切正常。我开始在数据库中插入大约500,000行....当我达到大约400,000时程序停止....问题是我看不到异常！我看到了这个 -

    at com.healthmarketscience.jackcess.impl.UsageMap$ReferenceHandler.createNewUsageMapPage(UsageMap.java:763)
at com.healthmarketscience.jackcess.impl.UsageMap$ReferenceHandler.addOrRemovePageNumber(UsageMap.java:747)
at com.healthmarketscience.jackcess.impl.UsageMap.removePageNumber(UsageMap.java:337)
at com.healthmarketscience.jackcess.impl.PageChannel.allocateNewPage(PageChannel.java:354)
at com.healthmarketscience.jackcess.impl.TempPageHolder.setNewPage(TempPageHolder.java:115)
at com.healthmarketscience.jackcess.impl.UsageMap$ReferenceHandler.createNewUsageMapPage(UsageMap.java:763)
at com.healthmarketscience.jackcess.impl.UsageMap$ReferenceHandler.addOrRemovePageNumber(UsageMap.java:747)
at com.healthmarketscience.jackcess.impl.UsageMap.removePageNumber(UsageMap.java:337)
at com.healthmarketscience.jackcess.impl.PageChannel.allocateNewPage(PageChannel.java:354)
at com.healthmarketscience.jackcess.impl.TempPageHolder.setNewPage(TempPageHolder.java:115)
at com.healthmarketscience.jackcess.impl.UsageMap$ReferenceHandler.createNewUsageMapPage(UsageMap.java:763)
at com.healthmarketscience.jackcess.impl.UsageMap$ReferenceHandler.addOrRemovePageNumber(UsageMap.java:747)
at com.healthmarketscience.jackcess.impl.UsageMap.removePageNumber(UsageMap.java:337)
at com.healthmarketscience.jackcess.impl.PageChannel.allocateNewPage(PageChannel.java:354)
at com.healthmarketscience.jackcess.impl.TempPageHolder.setNewPage(TempPageHolder.java:115)
at com.healthmarketscience.jackcess.impl.UsageMap$ReferenceHandler.createNewUsageMapPage(UsageMap.java:763)
at com.healthmarketscience.jackcess.impl.UsageMap$ReferenceHandler.addOrRemovePageNumber(UsageMap.java:747)
at com.healthmarketscience.jackcess.impl.UsageMap.removePageNumber(UsageMap.java:337)
at com.healthmarketscience.jackcess.impl.PageChannel.allocateNewPage(PageChannel.java:354)
at com.healthmarketscience.jackcess.impl.TempPageHolder.setNewPage(TempPageHolder.java:115)
at com.healthmarketscience.jackcess.impl.UsageMap$ReferenceHandler.createNewUsageMapPage(UsageMap.java:763)
at com.healthmarketscience.jackcess.impl.UsageMap$ReferenceHandler.addOrRemovePageNumber(UsageMap.java:747)
at com.healthmarketscience.jackcess.impl.UsageMap.removePageNumber(UsageMap.java:337)
at com.healthmarketscience.jackcess.impl.PageChannel.allocateNewPage(PageChannel.java:354)
at com.healthmarketscience.jackcess.impl.TempPageHolder.setNewPage(TempPageHolder.java:115)
at com.healthmarketscience.jackcess.impl.UsageMap$ReferenceHandler.createNewUsageMapPage(UsageMap.java:763)

我无法看到异常开始的地方！它曾经发生在我身上，但经过“压缩和修复”，它再次起作用...... 现在它没有。

有谁知道发生了什么事？

Answer 1

检查以下三件事。

首先，如果您使用的是任何IDE，请确保增加日志缓冲区，以便您可以开始此异常。可能不会提供太多帮助，但会比在中间某处查看更好。

其次，DB文件大小是多少？ Access DB文件大小存在限制，有时会导致此类非常规错误。检查一下。

第三 - 使用 ucanaccess 更新/插入时，请勿打开或尝试使用该特定数据库执行其他操作。这样做，大多数时候会导致此问题。

我无法处理的ucanaccess异常异常

1 个答案: