原文出处:
http://www.cnblogs.com/dxfcv222/archive/2007/06/28/798645.html
[.net] 将 datatable 存储到数据库
最近有这样的任务,需要将datatable 中的数据存储到数据库。以前有写过类似的解决方案,主要是利用 SqlCommand 对象结合 sql 查询语句实现。请看下面的代码片段:
上面的工作显得非常繁琐。
我经常想,datatable 和数据库中的表本质是一样的,存储应该是一个函数,一句话的
事情。
下面我就用一个函数 show 给大家看。
上面利用了。net 2。0 新加入的几个数据库操作类型。请务必先引入以下几个组建:
Microsoft.SqlServer.ConnectionInfo
Microsoft.SqlServer.Smo
Microsoft.SqlServer.SqlEnum
和如下名字空间:
using Microsoft.SqlServer.Management.Smo;
using Microsoft.SqlServer.Server;
using Microsoft.SqlServer.Management.Common;
using Microsoft.SqlServer;
下面是测试代码:
1
//
创建表格
2
string
creatingString
=
"
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[
"
+
Table_Name
+
"
]') and OBJECTPROPERTY(id, N'IsUserTable') = 1) drop table [dbo].[
"
+
Table_Name
+
"
]
"
+
3
"
CREATE TABLE [dbo].[
"
+
Table_Name
+
"
] (
"
+
4
"
[name] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
"
+
5
"
[account] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
"
+
6
"
[ShipName] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
"
+
7
"
[LevelMove] [int] NULL ,
"
+
8
"
[ExpMove] [int] NULL ,
"
+
9
"
[LevelFight] [int] NULL ,
"
+
10
"
[ExpFight] [int] NULL ,
"
+
11
"
[LevelLoad] [int] NULL ,
"
+
12
"
[ExpLoad] [int] NULL ,
"
+
13
"
) ON [PRIMARY]
"
;
14
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SqlCommand sqlCommand
=
new
SqlCommand(creatingString, _databaseConnection
as
SqlConnection);
16
sqlCommand.ExecuteNonQuery();

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//
插入记录到数据库
2
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string
insertString
=
"
INSERT INTO
"
+
Table_Name
+
"
(name, account, ShipName, LevelMove, ExpMove, LevelFight, ExpFight, LevelLoad, ExpLoad)
"
+
4
"
VALUES(@name, @account, @ShipName, @LevelMove, @ExpMove, @LevelFight, @ExpFight, @LevelLoad, @ExpLoad)
"
;
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6
SqlCommand sqlCommand
=
new
SqlCommand(insertString, _databaseConnection
as
SqlConnection);
7
8
sqlCommand.Parameters.Add(
"
@name
"
, SqlDbType.VarChar,
50
).Value
=
record.PlayerName;
9
sqlCommand.Parameters.Add(
"
@account
"
, SqlDbType.VarChar,
50
).Value
=
record.PlayerAccount;
10
sqlCommand.Parameters.Add(
"
@ShipName
"
, SqlDbType.VarChar,
50
).Value
=
record.ShipName;
11
12
sqlCommand.Parameters.Add(
"
@LevelMove
"
, SqlDbType.Int,
4
).Value
=
record.LevelMove;
13
sqlCommand.Parameters.Add(
"
@ExpMove
"
, SqlDbType.Int,
4
).Value
=
record.ExpMove;
14
sqlCommand.Parameters.Add(
"
@LevelFight
"
, SqlDbType.Int,
4
).Value
=
record.LevelFight;
15
sqlCommand.Parameters.Add(
"
@ExpFight
"
, SqlDbType.Int,
4
).Value
=
record.ExpFight;
16
sqlCommand.Parameters.Add(
"
@LevelLoad
"
, SqlDbType.Int,
4
).Value
=
record.LevelLoad;
17
sqlCommand.Parameters.Add(
"
@ExpLoad
"
, SqlDbType.Int,
4
).Value
=
record.ExpLoad;
18
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sqlCommand.ExecuteNonQuery();
20
}

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上面的工作显得非常繁琐。
我经常想,datatable 和数据库中的表本质是一样的,存储应该是一个函数,一句话的
事情。
下面我就用一个函数 show 给大家看。
1
public
static
void
Table2Db(DataTable dt, SqlConnection connection,
string
dbName)
2
{
3
Debug.Assert(dt != null);
4
Debug.Assert(connection != null);
5
Debug.Assert(connection.State == ConnectionState.Open);
6
Debug.Assert(dbName != null);
7
Debug.Assert(dbName != string.Empty);
8
9
Server server = new Server(new ServerConnection(connection));
10
Database db = server.Databases[dbName];
11
if (db == null)
12
{
13
db = new Database(server, dbName);
14
db.Create();
15
}
16
17
Table table = db.Tables[dt.TableName];
18
if (table == null)
19
{
20
table = new Table(db, dt.TableName);
21
foreach (DataColumn dc in dt.Columns)
22
{
23
Column column = new Column(table, dc.ColumnName);
24
column.DataType = DataType.VarChar(50);
25
table.Columns.Add(column);
26
}
27
table.Create();
28
}
29
30
using (SqlBulkCopy copy = new SqlBulkCopy(connection))
31
{
32
copy.DestinationTableName = string.Format("[{0}]", dt.TableName);
33
copy.WriteToServer(dt);
34
}
35
36
Debug.Assert(server != null);
37
Debug.Assert(table != null);
38
}

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上面利用了。net 2。0 新加入的几个数据库操作类型。请务必先引入以下几个组建:
Microsoft.SqlServer.ConnectionInfo
Microsoft.SqlServer.Smo
Microsoft.SqlServer.SqlEnum
和如下名字空间:
using Microsoft.SqlServer.Management.Smo;
using Microsoft.SqlServer.Server;
using Microsoft.SqlServer.Management.Common;
using Microsoft.SqlServer;
下面是测试代码:
1
2
//
------------------------------------------------------------------
3
4
5
6
//
连接串形成
7
8
9
public
static
string
GetConnectionString(
string
server,
10
string
database,
11
string
userName,
12
string
password)
13
{
14
15
return string.Format("server={0};uid={1};pwd={2};database={3}",
16
server,
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userName,
18
password,
19
database);
20
}
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//
------------------------------------------------------------------
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static
void
Main(
string
[] args)
29
{
30
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//------------------------------------------------------------------
35
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//表格创建
37
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DataTable dt = new DataTable("1");
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dt.Columns.Add("1");
42
dt.Columns.Add("2");
43
dt.Columns.Add("3");
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dt.Columns.Add("4");
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for (int i = 0; i < 1000; ++i)
49
{
50
DataRow dr = dt.NewRow();
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dr[0] = dr[1] = dr[2] = dr[3] = i;
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dt.Rows.Add(dr);
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}
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//------------------------------------------------------------------
62
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//存储到数据库
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SqlConnection connection = new SqlConnection(GetConnectionString("192.168.1.79", "nx_server_hotdancing_dxf", "sa", "abc"));
67
connection.Open();
68
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try
70
{
71
Table2Db(dt, connection, "nx_server_hotdancing_dxf");
72
}
73
catch(Exception)
74
{
75
//做点什么?
76
}
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connection.Close();
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//------------------------------------------------------------------
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}
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