範例群組聊天資料庫查詢

上次修改主題的時間： 2011-01-27

本節包含Group Chat資料庫的範例查詢。

請使用下列範例來取得特定日期之後最活躍的聊天室清單。

SELECT nodeName as ChatRoom, COUNT(*) as ChatMessages
  FROM tblChat, tblNode
  WHERE channelId = nodeID AND dbo.fnTicksToDate(chatDate) > '1/1/2011'
  GROUP BY nodeName
  ORDER BY ChatMessages DESC

請使用下列範例來取得特定日期之後最活躍的使用者清單。

SELECT prinName as Name, count(*) as ChatMessages
  FROM tblChat, tblPrincipal
  WHERE prinId = userId AND dbo.fnTicksToDate(chatDate) > '1/1/2011'
  GROUP BY prinName
  ORDER BY ChatMessages DESC

請使用下列範例來取得曾傳送內含 “Hello World” 之訊息的所有人清單。

SELECT nodeName as ChatRoom, prinName as Name, content as Message
  FROM tblChat, tblNode, tblPrincipal
  WHERE channelId = nodeID AND userId = prinID AND content like '%Hello World%'

請使用下列範例來取得特定主體的群組成員資格清單。

SELECT prinName as Name    
  FROM tblPrincipalAffiliations as pa, tblPrincipal
  where principalID = 7 and affiliationID = prinID

請使用下列範例來取得使用者 Jane Dow 為直接成員的每個聊天室清單。

SELECT DISTINCT nodeName as ChatRoom, prinName as Name          
  FROM tblPrincipalRole, tblPrincipal, tblNode
  WHERE  prinRoleNodeID = nodeID AND prinRolePrinID = prinID AND prinName = 'Jane Dow'

請使用下列範例來取得使用者已收到的邀請清單。

SELECT prinName
      ,nodeName
      ,invID   
      ,createdOn
  FROM tblPrincipalInvites as inv, tblPrincipal as p, tblNode as n
  where inv.prinID = 5 AND inv.prinID = p.prinID and inv.nodeID = n.nodeID
  ORDER BY invID DESC