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oledb 获取所有表的名字和列名

發(fā)布時間:2025/3/20 编程问答 35 豆豆
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'''


?? ''' 獲取所有表的名字
?? '''
?? ''' 連接對象
?? ''' 包含表名字的字符串?dāng)?shù)組
?? Public Function GetTablesName(ByVal conn As OleDb.OleDbConnection) As String()
?????? If (conn Is Nothing) AndAlso (conn.State <> ConnectionState.Open) Then
?????????? Return Nothing
?????? End If

?????? Dim arTmp As ArrayList = New ArrayList()

?????? Dim dtTmp As DataTable = conn.GetSchema("Tables")
?????? For i As Integer = 0 To dtTmp.Rows.Count - 1
?????????? '必須是基本表,不是系統(tǒng)表
?????????? If dtTmp.Rows(i).Item("TABLE_TYPE").ToString() = "TABLE" Then
?????????????? arTmp.Add(dtTmp.Rows(i).Item("TABLE_NAME"))
?????????? End If
?????? Next

?????? Dim arT As String()
?????? ReDim arT(arTmp.Count() - 1)
?????? arTmp.CopyTo(arT)
?????? Return arT
?? End Function

'''


?? ''' 獲取一個表的列名
?? '''
?? '''
?? ''' 表明
?? ''' 表的列名子字符串?dāng)?shù)組
?? Public Function GetColumnsName(ByVal conn As OleDb.OleDbConnection, ByVal TableName As String) As String()
?????? If (conn Is Nothing) AndAlso (conn.State <> ConnectionState.Open) Then
?????????? Return Nothing
?????? End If

?????? Dim arTmp As ArrayList = New ArrayList()

?????? Dim dtTmp As DataTable = conn.GetSchema("Columns", New String() {Nothing, Nothing, TableName})
?????? For i As Integer = 0 To dtTmp.Rows.Count - 1
?????????? arTmp.Add(dtTmp.Rows(i).Item("COLUMN_NAME"))
?????? Next

?????? Dim arT As String()
?????? ReDim arT(arTmp.Count() - 1)
?????? arTmp.CopyTo(arT)
?????? Return arT
?? End Function

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