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应用ADO.net得到系统表信息 |
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作者：未知 来源：月光软件站 加入时间：2005-2-28 月光软件站 |
'----------------------------------------------------------
'开发者：赵玉
'开发时间：2005.1.13
'功能：应用ADO.net得到表
'----------------------------------------------------------
Imports Zy_DataAccess
Imports System
Imports System.Data
Imports System.Data.SqlClient
Imports System.Data.OleDb
Public Class ClsGetTables
'----------------------------------------------------------
'开发时间：2004.9.9
'功能：得到所有表
'----------------------------------------------------------
Public Function GetAllTables(ByVal CnStr As String) As DataTable
Dim conn As New OleDbConnection(CnStr)
conn.Open()
Dim schemaTable As DataTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, _
New Object() {Nothing, Nothing, Nothing, Nothing}) ' "TABLE"})
conn.Close()
Return schemaTable
End Function
'----------------------------------------------------------
'开发时间：2004.9.9
'功能：得系统表
'----------------------------------------------------------
Public Function GetSystemTables(ByVal CnStr As String) As DataTable
Dim conn As New OleDbConnection(CnStr)
conn.Open()
Dim schemaTable As DataTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, _
New Object() {Nothing, Nothing, Nothing, "SYSTEM TABLE"})
conn.Close()
Return schemaTable
End Function
'----------------------------------------------------------
'开发时间：2004.9.9
'功能：得用户表
'----------------------------------------------------------
Public Function GetUserTables(ByVal CnStr As String) As DataTable
Dim conn As New OleDbConnection(CnStr)
conn.Open()
Dim schemaTable As DataTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, _
New Object() {Nothing, Nothing, Nothing, "TABLE"})
conn.Close()
Return schemaTable
End Function
'----------------------------------------------------------
'开发时间：2004.9.9
'功能：得到系统视图
'----------------------------------------------------------
Public Function GetSystemViews(ByVal CnStr As String) As DataTable
Dim conn As New OleDbConnection(CnStr)
conn.Open()
Dim schemaTable As DataTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, _
New Object() {Nothing, Nothing, Nothing, "SYSTEM VIEW"}) ' "TABLE"})
conn.Close()
Return schemaTable
End Function
'----------------------------------------------------------
'开发时间：2004.9.9
'功能：得到用户视图
'----------------------------------------------------------
Public Function GetUserViews(ByVal CnStr As String) As DataTable
Dim conn As New OleDbConnection(CnStr)
conn.Open()
Dim schemaTable As DataTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, _
New Object() {Nothing, Nothing, Nothing, "VIEW"}) ' "TABLE"})
conn.Close()
Return schemaTable
End Function
'----------------------------------------------------------
'开发时间：2004.9.9
'功能：得到所有过程
'----------------------------------------------------------
Public Function GetStoredProcedures(ByVal CnStr As String) As DataTable
Dim conn As New OleDbConnection(CnStr)
conn.Open()
Dim schemaTable As DataTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Procedures, New Object() {Nothing, Nothing, Nothing, Nothing})
conn.Close()
Return schemaTable
End Function
'----------------------------------------------------------
'开发时间：2004.9.9
'功能：得到数据类型
'----------------------------------------------------------
Public Function GetDataTypes(ByVal CnStr As String) As DataTable
Dim conn As New OleDbConnection(CnStr)
conn.Open()
Dim schemaTable As DataTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Provider_Types, New Object() {Nothing})
conn.Close()
Return schemaTable
End Function
'----------------------------------------------------------
'开发时间：2004.9.9
'功能：得到表的列,My_Tablename为空是所有的
'----------------------------------------------------------
Public Function GetTableColumns(ByVal CnStr As String, ByVal My_Tablename As String) As DataTable
Dim conn As New OleDbConnection(CnStr)
conn.Open()
If My_Tablename.Trim = "" Then
My_Tablename = Nothing
End If
Dim schemaTable As DataTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Columns, New Object() {Nothing, Nothing, My_Tablename, Nothing})
conn.Close()
Return schemaTable
End Function
'----------------------------------------------------------
'开发时间：2004.9.9
'功能：数据库名
'----------------------------------------------------------
Public Function GetDbname(ByVal CnStr As String) As DataTable
Dim conn As New OleDbConnection(CnStr)
conn.Open()
Dim schemaTable As DataTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Catalogs, New Object() {Nothing})
conn.Close()
Return schemaTable
End Function
'----------------------------------------------------------
'开发时间：2004.9.9
'功能：数据库表列的权限
'----------------------------------------------------------
Public Function GetColumn_Privileges(ByVal CnStr As String) As DataTable
Dim conn As New OleDbConnection(CnStr)
conn.Open()
Dim schemaTable As DataTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Column_Privileges, New Object() {Nothing})
conn.Close()
Return schemaTable
End Function
'----------------------------------------------------------
'开发时间：2004.9.9
'功能：数据库表的索引
'----------------------------------------------------------
Public Function GetIndexes(ByVal CnStr As String) As DataTable
Dim conn As New OleDbConnection(CnStr)
conn.Open()
Dim schemaTable As DataTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Indexes, New Object() {Nothing})
conn.Close()
Return schemaTable
End Function
'----------------------------------------------------------
'开发时间：2004.9.9
'功能：数据库表的主键
'----------------------------------------------------------
Public Function GetPrimary_Keys(ByVal CnStr As String) As DataTable
Dim conn As New OleDbConnection(CnStr)
conn.Open()
Dim schemaTable As DataTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Primary_Keys, New Object() {Nothing})
conn.Close()
Return schemaTable
End Function
'----------------------------------------------------------
'开发时间：2004.9.9
'功能：数据库的存储过程的参数
'----------------------------------------------------------
Public Function GetProcedure_Parameters(ByVal CnStr As String) As DataTable
Dim conn As New OleDbConnection(CnStr)
conn.Open()
Dim schemaTable As DataTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Procedure_Parameters, New Object() {Nothing})
conn.Close()
Return schemaTable
End Function
'----------------------------------------------------------
'开发时间：2004.9.9
'功能：数据库的架构信息
'----------------------------------------------------------
Public Function GetSchemata(ByVal CnStr As String) As DataTable
Dim conn As New OleDbConnection(CnStr)
conn.Open()
Dim schemaTable As DataTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Schemata, New Object() {Nothing})
conn.Close()
Return schemaTable
End Function
'----------------------------------------------------------
'开发时间：2004.9.9
'功能：数据库的表的记录数统计
'----------------------------------------------------------
Public Function GetStatistics(ByVal CnStr As String) As DataTable
Dim conn As New OleDbConnection(CnStr)
conn.Open()
Dim schemaTable As DataTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Statistics, New Object() {Nothing})
conn.Close()
Return schemaTable
End Function
'----------------------------------------------------------
'开发时间：2004.9.9
'功能：数据库的表的记录数统计
'----------------------------------------------------------
Public Function GetTable_Statistics(ByVal CnStr As String) As DataTable
Dim conn As New OleDbConnection(CnStr)
conn.Open()
Dim schemaTable As DataTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Table_Statistics, New Object() {Nothing})
conn.Close()
Return schemaTable
End Function
'----------------------------------------------------------
'开发时间：2004.9.9
'功能：数据库的中用户可访问的表
'----------------------------------------------------------
Public Function GetTables_Info(ByVal CnStr As String) As DataTable
Dim conn As New OleDbConnection(CnStr)
conn.Open()
Dim schemaTable As DataTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables_Info, New Object() {Nothing})
conn.Close()
Return schemaTable
End Function
End Class
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