Unique Index

基本解释

• 唯一索引

英汉例句

雙語例句

• The primary key and any unique index of the table must be a superset of the associated partitioning key.
  表的主鍵和所有惟一索引都必須是相關分區鍵的超集。
• On a federated system, unique index information might be required to perform an UPDATE/DELETE operation for some data sources.
  在一個聯邦系統上，爲了爲某些數據源執行 UPDATE/DELETE 操作，需要惟一的索引信息。
• In other words, all columns that are part of the partitioning key must be present in the primary key or unique index definition.
  換句話說，作爲分區鍵一部分的所有列都必須出現在主鍵或惟一索引定義中。

權威例句

• Like most unique asset classes, the index has periods of outperformance and periods of underperformance.
  FORBES: A Beautiful Asset Class Few Can Own
• Oxford Economics built a unique global ranking model based on a weighted composite index to compare and benchmark employee diversity across countries, industries and occupations.
  FORBES: Top 5 Industry Sectors In Workforce Diversity

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词组短语

短語

• unique clusterd index 索引
• unique clustered index 唯一聚集索引
• create UNIQUE index 唯一性索引
• UNIQUE INDEX SCAN 是純粹的
• Unique Index Lookup 唯一索引查找

• Unique Index更多词组

专业释义

計算機科學技術

• 唯一索引