setdefault信息详情
setdefault发音
意思翻译
设置默认值
相似词语短语
双语使用场景
The only problem with dict. setdefault() is that the default value is always evaluated, whether needed or not.───唯一的问题就是永运会计算默认值,不管需不需要。
The REFERENCES clause now supports the SET NULL and SET DEFAULT cascading referential integrity actions.───REFERENCES子句现在支持级联引用完整性操作SETNULL和SETDEFAULT。
SET DEFAULT specifies that foreign keys are set to the default value defined for the column.───SETDEFAULT指定将外键设置为定义的列默认值。
SetDefault specifies that all child columns be set to the default value for the column.───SetDefault指定必须将所有子列设置为列的默认值。
SetDefault specifies that all child column values be set to the default value.───SetDefault指定必须将所有子列值设置为默认值。
英语使用场景
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