Home Sign Up Sign In
sujin190
V2EX  ›  问与答

怎样给 mongodb 整个数组作为一个唯一项建立唯一索引啊？

  •   
  •   sujin190 · Oct 21, 2014 · 3863 views
    This topic created in 4392 days ago, the information mentioned may be changed or developed.
    怎样给mongodb整个数组作为一个唯一项建立唯一索引啊？默认给数组建立唯一索引是给数组中得每一项建立唯一索引，这样只要有相同的数据第二项就插不进去了啊？求解
    No Comments Yet
    About   ·   Help   ·   Advertise   ·   Blog   ·   API   ·   FAQ   ·   Privacy   ·   Solana   ·   2547 Online   Highest 6679   ·     Select Language
    创意工作者们的社区
    World is powered by solitude
    VERSION: 3.9.8.5 · 23ms · UTC 12:12 · PVG 20:12 · LAX 05:12 · JFK 08:12
    ♥ Do have faith in what you're doing.