想得到数据所有支持的数据类型(GetSchema的使用)

代码

   
     

    
      
    
       1 
    
      using
    
       System;

    
       2 
    
       
    
      using
    
       System.Collections.Generic;

    
       3 
    
      using
    
       System.Linq;

    
       4 
    
      using
    
       System.Text;

    
       5 
    
      using
    
       WCFService2;

    
       6 
    
      using
    
       System.Data;

    
       7 
    
      using
    
       System.Data.OracleClient;

    
       8 
    
      using
    
       System.ComponentModel;

    
       9 
    
      using
    
       System.Data.SqlClient;

    
      10 
    
      using
    
       System.Data.OleDb;

    
      11 
    
      namespace
    
       testxcode

    
      12 
    
      {

    
      13 
    
       
    
      class
    
       Program

    
      14 
    
       {

    
      15 
    
       
    
      static
    
       
    
      void
    
       OutPut(DataRow dt, DataColumnCollection colCollection)

    
      16 
    
       {

    
      17 
    
       
    
      for
    
       (
    
      int
    
       i 
    
      =
    
       
    
      0
    
      ; i 
    
      <
    
       colCollection.Count; i
    
      ++
    
      )

    
      18 
    
       {

    
      19 
    
       Console.Write(
    
      "
    
      \r\n[
    
      "
    
      +
    
      colCollection[i].ToString()
    
      +
    
      "
    
      ]:
    
      "
    
       
    
      +
    
       dt[i].ToString() 
    
      +
    
       
    
      "
    
      \r\n
    
      "
    
      );

    
      20 
    
       

    
      21 
    
       }

    
      22 
    
       Console.Write(
    
      "
    
      ____________________________________________\r\n
    
      "
    
      );

    
      23 
    
       }

    
      24 
    
       
    
      static
    
       
    
      void
    
       Main(
    
      string
    
      [] args)

    
      25 
    
       {

    
      26 
    
       Console.WriteLine(XLog.XTrace.LogPath);

    
      27 
    
       OracleConnection conntest 
    
      =
    
       
    
      new
    
       OracleConnection(
    
      "
    
      Data Source=Local;user id=ws;password=MCenter.finfo.CC;
    
      "
    
      );

    
      28 
    
       conntest.Open();

    
      29 
    
       DataTable dttest 
    
      =
    
       conntest.GetSchema();

    
      30 
    
       
    
      foreach
    
       (DataRow row 
    
      in
    
       dttest.Rows)

    
      31 
    
       {

    
      32 
    
       OutPut(row, dttest.Columns);

    
      33 
    
       }

    
      34 
    
       Console.Read();

    
      35 
    
       
    
      return
    
      ;

    
      36 
    
       
    
      //
    
       Console.WriteLine(Sys_config.Find(Sys_config._.Configkey, "SerHost").Configvalue);
    
      

    
      37 
    
       OracleConnection conn 
    
      =
    
       
    
      new
    
       OracleConnection(
    
      "
    
      Data Source=Local;user id=ws;password=MCenter.finfo.CC;
    
      "
    
      );

    
      38 
    
       Console.WriteLine(
    
      "
    
      oracle11g
    
      "
    
      );

    
      39 
    
       XLog.XTrace.WriteLine(
    
      "
    
      oracle11g
    
      "
    
      );

    
      40 
    
       conn.Open();

    
      41 
    
       DataTable dt 
    
      =
    
       conn.GetSchema(
    
      "
    
      DATATYPES
    
      "
    
      );

    
      42 
    
       
    
      foreach
    
       (DataRow item 
    
      in
    
       dt.Rows)

    
      43 
    
       {

    
      44 
    
       Console.WriteLine(item[
    
      0
    
      ].ToString()
    
      +
    
      "
    
      :
    
      "
    
      +
    
      item[
    
      "
    
      DataType
    
      "
    
      ].ToString());

    
      45 
    
       XLog.XTrace.WriteLine(item[
    
      0
    
      ].ToString() 
    
      +
    
       
    
      "
    
      :
    
      "
    
       
    
      +
    
       item[
    
      "
    
      DataType
    
      "
    
      ].ToString());

    
      46 
    
       }

    
      47 
    
       conn.Close();

    
      48 
    
       XLog.XTrace.WriteLine(
    
      "
    
      C#不支持的类型:binary_double,binary_float
    
      "
    
      );

    
      49 
    
      

    
      50 
    
      

    
      51 
    
      

    
      52 
    
      

    
      53 
    
      

    
      54 
    
      

    
      55 
    
      

    
      56 
    
      

    
      57 
    
      

    
      58 
    
      

    
      59 
    
      

    
      60 
    
      

    
      61 
    
       SqlConnection sqlconn 
    
      =
    
       
    
      new
    
       SqlConnection(
    
      "
    
      server=.;database=test;uid=sa;pwd=gaoshengjie
    
      "
    
      );

    
      62 
    
       Console.WriteLine(
    
      "
    
      sqlserver2008
    
      "
    
      );

    
      63 
    
       XLog.XTrace.WriteLine(
    
      "
    
      sqlserver2008
    
      "
    
      );

    
      64 
    
       sqlconn.Open();

    
      65 
    
       
    
      foreach
    
       (DataRow item 
    
      in
    
       sqlconn.GetSchema(
    
      "
    
      DATATYPES
    
      "
    
      ).Rows)

    
      66 
    
       {

    
      67 
    
       Console.WriteLine(item[
    
      0
    
      ].ToString() 
    
      +
    
       
    
      "
    
      :
    
      "
    
       
    
      +
    
       item[
    
      "
    
      DataType
    
      "
    
      ].ToString());

    
      68 
    
       XLog.XTrace.WriteLine(item[
    
      0
    
      ].ToString() 
    
      +
    
       
    
      "
    
      :
    
      "
    
       
    
      +
    
       item[
    
      "
    
      DataType
    
      "
    
      ].ToString());

    
      69 
    
       }

    
      70 
    
       sqlconn.Close();

    
      71 
    
      

    
      72 
    
      

    
      73 
    
      

    
      74 
    
      

    
      75 
    
      

    
      76 
    
      

    
      77 
    
      

    
      78 
    
      

    
      79 
    
      

    
      80 
    
      

    
      81 
    
      

    
      82 
    
      

    
      83 
    
       OleDbConnection OleDbconn 
    
      =
    
       
    
      new
    
       OleDbConnection(
    
      "
    
      Provider=Microsoft.Jet.OLEDB.4.0; Data Source=test.mdb;Persist Security Info=False;
    
      "
    
      );

    
      84 
    
       Console.WriteLine(
    
      "
    
      ACCESS
    
      "
    
      );

    
      85 
    
       XLog.XTrace.WriteLine(
    
      "
    
      ACCESS
    
      "
    
      );

    
      86 
    
       OleDbconn.Open();

    
      87 
    
       
    
      foreach
    
       (DataRow item 
    
      in
    
       OleDbconn.GetSchema(
    
      "
    
      DATATYPES
    
      "
    
      ).Rows)

    
      88 
    
       {

    
      89 
    
       Console.WriteLine(item[
    
      0
    
      ].ToString() 
    
      +
    
       
    
      "
    
      :
    
      "
    
       
    
      +
    
       item[
    
      "
    
      DataType
    
      "
    
      ].ToString());

    
      90 
    
       XLog.XTrace.WriteLine(item[
    
      0
    
      ].ToString() 
    
      +
    
       
    
      "
    
      :
    
      "
    
       
    
      +
    
       item[
    
      "
    
      DataType
    
      "
    
      ].ToString());

    
      91 
    
       }

    
      92 
    
       OleDbconn.Close();

    
      93 
    
       

    
      94 
    
       Console.Read();

    
      95 
    
       }

    
      96 
    
       }

    
      97 
    
      }

    
      98