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- To test for second normal form, remove any data that does not depend on the whole identifier. 进行第二范式测试时,应删除所有不依赖于整个标识符的数据。
- Second normal form requires that each non-key column be fully dependent on the entire primary key, not on just part of the key. 第二范式要求每个非键列完全依赖于整个主键,而不仅仅依赖于主键的一部分。
- This design violates second normal form, because Product Name is dependent on Product ID, but not on Order ID, so it is not dependent on the entire primary key. 此设计违反了第二范式,因为“产品名称”依赖于“产品ID”,但并不依赖于“订单ID”,因此并不依赖于整个主键。
- Where the First Normal Form deals with atomicity of data, the Second Normal Form (or 2NF) deals with relationships between composite key columns and non-key columns. 在第二范式中,任何非关键字字段必须依赖整个主关键字。
- Put data in second normal form. 第二范式测试。
- second normal form 第二范式
- Modernity has its normal form and alienated form. 而现代性又有着它的合理形态与异化形态。
- The body as a Normal Form of Thinking? 身体:作为一种思维的范式?
- In general, the volume and price of large-volume, or units run the normal form. 一般来说,价升量增、价跌量缩是大盘或个股运行的正常形态。
- The table is called the normal form or the strategic form of the game. 也称博弈的标准型或策略形式。
- This model is in a special form called disjunctive normal form (DNF). 这一模型表现为一种特殊的形式--正常分离形式(DNF)。
- The satisfiability problem of conjunction normal form (abbreviate SAT problem) is an NP_complete problem. 合取范式可满足性问题(简称SAT问题)是一个NP完全问题。
- Returns the normalized form of the specified quaternion. 返回指定四元数的正规化形式。
- With this disjunctive normal form, the Operation Scheme written in Z was divided into Sub-Operation Scheme. 然后根据析取范式将Z语言描述的操作模式划分为子操作模式;
- Very general systems of differential equations can be reduced to the normal form. 形式很普通的微分方程组可以化为正规的形式。
- Try to stick to documents in namespace normal form wherever possible because they are simplest to read and to process. 尽可能保持文档名称空间的规范性,因为这样最容易阅读和处理。
- This table violates third normal form because a non-key column, Discount, depends on another non-key column, SRP. 此表就违反了第三范式,因为非键列“折扣”依赖于另一个非键列SRP。
- Normal formed steel for refrigerator casing, oil barrel, steel furniture, etc. 冰箱等家电外壳、油桶、钢家俱等一般成形加工用。
- The declarative query language KBL is an extended Datalog, which is adaptable to non-first normal form relation model. 描述性查询语言KBL是DATALOG针对于非一范式关系模型的扩充。
- He singled and went to second on a passed ball. 他击出一垒打,再因对方漏接而跑上二垒。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries