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- In relational databases, an operator in relational algebra. 在關(guān)系數據庫中，關(guān)系代數用的一種運算符。
- In relational algebra, the problems I discussed in this article are called relational division. 在關(guān)系代數中,我在本文中討論的問(wèn)題稱(chēng)為關(guān)系劃分。
- From the perspective of relational algebra,decomposes any query to the sub-query on data partitioned horizontally and the post-query on merged intermediate results. 從關(guān)系代數的角度,將任意查詢(xún)分解成對水平數據分區的子查詢(xún)和匯總中間結果的后處理查詢(xún)。
- Relational Algebra and Relational Calculus 關(guān)系代數與關(guān)系演算
- Temporal Extension of Relational Algebra Operators 關(guān)系代數操作符的時(shí)態(tài)擴展
- This paper introduces the concept of generalized fuzzy relation and extends relational algebra operators such as union, intersection, difference, Cartesian product, selection, projection etc. 文中引入了廣義模糊關(guān)系的概念，討論了廣義模糊關(guān)系代數的操作：廣義模糊并、廣義模糊交、廣義模糊差、廣義模糊笛卡爾積、廣義模糊投影和廣義模糊選擇等。
- original relational algebra operators 原始算子
- The machine must break down at this busy hour. 正忙的時(shí)候，機器偏偏又壞了。
- The uses of this machine are manifold. 這臺機器有多種用途。
- ER() also gives a set of integrity rules.ER() expends relation model and relation algebra and uses object oriented and relation model to present multidimensional data. ER()給出了一組完整性規則.;擴充了關(guān)系模型和關(guān)系代數;使得能用關(guān)系對象模型表示多維數據
- derived relational algebra operators 關(guān)系代數的派生算子
- Logical operators describe the relational algebraic operation used to process a statement. 邏輯運算符描述了用于處理語(yǔ)句的關(guān)系代數操作。
- The new grinding machine passed all tests. 這臺新磨床通過(guò)了所有的試驗。
- The boy can't figure out the algebra problems. 這個(gè)男孩做不出這道代數題。
- We've learned algebra in middle school. 我在中學(xué)就學(xué)過(guò)代數學(xué)。
- Oil feeds into the machine through this tubing. 油經(jīng)過(guò)這個(gè)管子流入機器。
- Did you get a good trade-in on your sewing machine? 你以舊縫紉機折價(jià)換新合算嗎？
- She was studying to build up her algebra. 她在學(xué)習以提高自己的代數水平。
- You may stop the machine by pushing this button. 按下這個(gè)按鈕你就可以關(guān)掉這個(gè)機器。
- Workflow engine on top of temporal relational algebra 基于時(shí)態(tài)關(guān)系代數的工作流引擎
