setdefault的意思
setdefault中文翻譯:
設置默認值
相似詞語短語
雙語使用場景
The only problem with dict. setdefault() is that the default value is always evaluated, whether needed or not.───唯一的問題就是永運會計算默認值,不管需不需要。
The REFERENCES clause now supports the SET NULL and SET DEFAULT cascading referential integrity actions.───REFERENCES子句現在支持級聯引用完整性操作SETNULL和SETDEFAULT。
SET DEFAULT specifies that foreign keys are set to the default value defined for the column.───SETDEFAULT指定將外鍵設置為定義的列默認值。
SetDefault specifies that all child columns be set to the default value for the column.───SetDefault指定必須將所有子列設置為列的默認值。
SetDefault specifies that all child column values be set to the default value.───SetDefault指定必須將所有子列值設置為默認值。
英語使用場景
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