Database.RecordsAffected 属性 (DAO)

适用于：Access 2013、Office 2013

返回最近调用的 Execute 方法所影响的记录数。

语法

表达式 。RecordsAffected

表达式 一个表示 Database 对象的变量。

示例

以下示例将 RecordsAffected 属性用于从 Database 对象和 QueryDef 对象执行的查询。 若要使该过程运行，需要使用 RecordsAffectedOutput 函数。

    Sub RecordsAffectedX() 
     
     Dim dbsNorthwind As Database 
     Dim qdfTemp As QueryDef 
     Dim strSQLChange As String 
     Dim strSQLRestore As String 
     
     Set dbsNorthwind = OpenDatabase("Northwind.mdb") 
     
     With dbsNorthwind 
     ' Print report of contents of the Employees 
     ' table. 
     Debug.Print _ 
     "Number of records in Employees table: " & _ 
     .TableDefs!Employees.RecordCount 
     RecordsAffectedOutput dbsNorthwind 
     
     ' Define and execute an action query. 
     strSQLChange = "UPDATE Employees " & _ 
     "SET Country = 'United States' " & _ 
     "WHERE Country = 'USA'" 
     .Execute strSQLChange 
     
     ' Print report of contents of the Employees 
     ' table. 
     Debug.Print _ 
     "RecordsAffected after executing query " & _ 
     "from Database: " & .RecordsAffected 
     RecordsAffectedOutput dbsNorthwind 
     
     ' Define and run another action query. 
     strSQLRestore = "UPDATE Employees " & _ 
     "SET Country = 'USA' " & _ 
     "WHERE Country = 'United States'" 
     Set qdfTemp = .CreateQueryDef("", strSQLRestore) 
     qdfTemp.Execute 
     
     ' Print report of contents of the Employees 
     ' table. 
     Debug.Print _ 
     "RecordsAffected after executing query " & _ 
     "from QueryDef: " & qdfTemp.RecordsAffected 
     RecordsAffectedOutput dbsNorthwind 
     
     .Close 
     
     End With 
     
    End Sub 
     
    Function RecordsAffectedOutput(dbsNorthwind As Database) 
     
     Dim rstEmployees As Recordset 
     
     ' Open a Recordset object from the Employees table. 
     Set rstEmployees = _ 
     dbsNorthwind.OpenRecordset("Employees") 
     
     With rstEmployees 
     ' Enumerate Recordset. 
     .MoveFirst 
     Do While Not .EOF 
     Debug.Print " " & !LastName & ", " & !Country 
     .MoveNext 
     Loop 
     .Close 
     End With 
     
    End Function