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Can you update thousands of records in core data without loading them in memory?
你能在核心数据更新成千上万的记录没有在内存中加载它们吗？
youdao
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BACKUP the handset (preferably to memory card), then do the update.
请先备份手机内容再使用此更新。
youdao
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BACKUP the handset (preferably to memory card), then do the update.
请先备份手机内容再使用此更新。
youdao