updateByExample与updateByExampleSelective的区别
2019-08-23 11:10
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updateByExample:
对注入的字段全部更新,为null的字段更新为null。
updateByExampleSelective:
对字段进行判断再更新,如果更新的字段中有null,忽略更新该字段,该字段还是以前的值。
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