Change Password

Please enter the password.
Please enter the password. Between 8-64 characters. Not identical to your email address. Contain at least 3 of: uppercase, lowercase, numbers, and special characters.
Please enter the password.
Submit

Change Nickname

Current Nickname:
Submit

Apply New License

License Detail

Please complete this required field.

  • Ultipa Graph V4

Standalone

Please complete this required field.

Please complete this required field.

The MAC address of the server you want to deploy.

Please complete this required field.

Please complete this required field.

Cancel
Apply
ID
Product
Status
Cores
Applied Validity Period(days)
Effective Date
Excpired Date
Mac Address
Apply Comment
Review Comment
Close
Profile
  • Full Name:
  • Phone:
  • Company:
  • Company Email:
  • Country:
  • Language:
Change Password
Apply

You have no license application record.

Apply
Certificate Issued at Valid until Serial No. File
Serial No. Valid until File

Not having one? Apply now! >>>

Product Created On ID Amount (USD) Invoice
Product Created On ID Amount (USD) Invoice

No Invoice

v4.5
Search
    Français
    v4.5

      LET Expression de Valeur

      L'expression de valeur LET vous permet de définir des variables et de les utiliser immédiatement dans une expression. Elle peut être utilisée pour améliorer la lisibilité et simplifier des expressions plus complexes.

      <let value expression> ::= 
       "LET" <let variable definition list> "IN" <value expression> "END"
      
      <let variable definition list> ::= 
        <let variable definition> [ { "," <let variable definition> }... ]
      
      <let variable definition> ::= 
          <binding variable> "=" <value expression>
        | <value variable definition>
      
      <value variable definition> ::= 
        "VALUE" <binding variable> [ [ "::" | "TYPED"] <value type> ] "=" <value expression>
      

      Exemple de Graph

      Les exemples suivants s'exécutent sur ce graph :

      Pour créer ce graph, exécutez la requête suivante contre un graph vide :

      INSERT (p1:Paper {_id:'P1', title:'Efficient Graph Search', score:6, author:'Alex', publisher:'PulsePress'}),
             (p2:Paper {_id:'P2', title:'Optimizing Queries', score:9, author:'Alex'}),
             (p3:Paper {_id:'P3', title:'Path Patterns', score:7, author:'Zack', publisher:'BrightLeaf'}),
             (p1)-[:Cites {weight:2}]->(p2),
             (p2)-[:Cites {weight:1}]->(p3)
      

      Exemples

      RETURN LET x = 2, y = 1 IN x^2+y END AS result
      

      Résultat:

      result
      5

      MATCH (n:Paper)
      RETURN n.title, LET plus = 1 IN n.score + plus END AS newScore
      

      Résultat:

      n.title newScore
      Optimizing Queries 10
      Efficient Graph Search 7
      Path Patterns 8
      Please complete the following information to download this book
      *
      公司名称不能为空
      *
      公司邮箱必须填写
      *
      你的名字必须填写
      *
      你的电话必须填写