blocks|key|2835128|text|在SqlBulkCopy类或C#中的表值参数中使用大容量插入。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2835129|那应该会让事情加速|2835130|entityMap|0|LINK|mutability|MUTABLE|url|https://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlbulkcopy(v=vs.110).aspx|1|http://www.mssqltips.com/sqlservertip/2112/table-value-parameters-in-sql-server-2008-and-net-c/^0|1|C|0|E|8|1|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]|$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|X|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]]]

Use either Bulk insert with <a href="https://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlbulkcopy(v=vs.110).aspx" rel="nofollow">SqlBulkCopy Class</a> or <a href="http://www.mssqltips.com/sqlservertip/2112/table-value-parameters-in-sql-server-2008-and-net-c/" rel="nofollow">Table Valued Parameters in C#</a>. 
That should speed things up

blocks|key|1020018|text|这很慢，因为每个插入都是单独处理的，这会导致事务时间上的开销。尝试使用不同的方法进行批量插入。无论是在框架上(如spring大容量)，还是只需将查询更改为一次性插入多个值。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1020019|insert+into+table+(col1,+col2,+col3,+...)
values++++++++++++(val1,+val2,+cal3,+...),
++++++++++++++++++(val1,+val2,+cal3,+...),
++++++++++++++++++(val1,+val2,+cal3,+...),+...|code-block|syntax|javascript|1020020|但是，不要将它们全部连接起来，以免使db连接的缓冲区大小过大。|1020021|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

This is slow because every insert is treatet on its own which causes an overhead on transaction time.
Try to do bulk insert by using different methods.
Whether on framework (like spring-data bulk) or just by changing your query to insert multiple values at one shot.

<pre><code>insert into table (col1, col2, col3, ...)
values (val1, val2, cal3, ...),
 (val1, val2, cal3, ...),
 (val1, val2, cal3, ...), ...
</code></pre>

but dont concat all of them to not overseed the buffersize of the db-connection.

blocks|key|1020074|text|由于您的数据已经在DataTable中，所以我认为最好的方法是使用SQLBulkCopy。例如：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1020075|string+sqlConnectionString+=+"server,+db,+user,+pass,+etc.";
using+(var+bulkCopy+=+new+SqlBulkCopy(sqlConnectionString))
{
++++bulkCopy.DestinationTableName+=+"table";
++++bulkCopy.ColumnMappings.Add("Col1",+"Col1");
++++bulkCopy.ColumnMappings.Add("Col2",+"Col2");
++++bulkCopy.ColumnMappings.Add("Col3",+"Col3");
++++bulkCopy.WriteToServer(dataTable);
}|code-block|syntax|javascript|1020076|要更新现有记录，如果您已经使用DataTable填充了SqlDataAdapter，则可以使用SqlDataAdapter.Update()方法。如果不是，那么我建议在SQL中处理插入项。由于您使用的是Server+2012，所以可以使用表值参数。第一步是创建表型|style|CODE|1020077|CREATE+TYPE+dbo.YourTableType+TABLE
(
++++Col1+INT,
++++Col2+INT,
++++Col3+INT
);|1020078|这应该具有与您的c#+DataTable相同的定义。|1020079|然后，下一步将创建一个存储过程，该存储过程接受此类型作为参数，并根据是否匹配使用MERGE插入或更新记录：|1020080|CREATE+PROCEDURE+dbo.UpsertYourTable+@Table+dbo.YourTableType+READONLY
AS
BEGIN
++++MERGE+dbo.YourTable+WITH+(HOLDLOCK)+AS+t
++++USING+@Table+AS+s
++++++++ON+s.Col1+=+t.Col1+--+OR+HOWEVER+YOU+IDENTIFY+EXISTING+RECORDS
++++WHEN+MATCHED+THEN+UPDATE
++++++++SET+Col2+=+Col2,
++++++++++++Col3+=+Col4
++++WHEN+NOT+MATCHED+THEN+
++++++++INSERT+(Col1,+Col2,+Col3,+Col4)
++++++++VALUES+(s.Col1,+s.Col2,+s.Col3,+'Test');

END;
GO|1020081|最后，要从c#调用它，您可以使用：|1020082|string+sqlConnectionString+=+"server,+db,+user,+pass,+etc.";
using+(var+connection+=+new+SqlConnection(sqlConnectionString))
using+(var+command+=+new+SqlCommand("dbo.UpsertYourTable",+connection))
{
++++command.CommandType+=+CommandType.StoredProcedure;
++++var+tvp+=+new+SqlParameter("@Table",+SqlDbType.Structured);
++++tvp.Value+=+dataTable;
++++tvp.TypeName+=+"dbo.YourTableType";
++++command.Parameters.Add(tvp);
++++command.ExecuteNonQuery();
}|1020083|entityMap|0|LINK|mutability|MUTABLE|url|https://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlbulkcopy%2528v=vs.110%2529.aspx|1|https://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqldataadapter.update%2528v=vs.110%2529.aspx|2|https://technet.microsoft.com/en-us/library/bb522526%2528v=sql.105%2529.aspx^0|X|B|0|0|0|1B|N|1B|N|1|3M|2|2|0|0|0|14|5|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1A|8|@]|9|@$A|1B|B|1C|1|1D]]|C|$]]|$1|D|3|E|5|F|7|1E|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|1F|8|@$A|1G|B|1H|K|L]]|9|@$A|1I|B|1J|1|1K]|$A|1L|B|1M|1|1N]]|C|$]]|$1|M|3|N|5|F|7|1O|8|@]|9|@]|C|$G|H]]|$1|O|3|P|5|6|7|1P|8|@]|9|@]|C|$]]|$1|Q|3|R|5|6|7|1Q|8|@$A|1R|B|1S|K|L]]|9|@]|C|$]]|$1|S|3|T|5|F|7|1T|8|@]|9|@]|C|$G|H]]|$1|U|3|V|5|6|7|1U|8|@]|9|@]|C|$]]|$1|W|3|X|5|F|7|1V|8|@]|9|@]|C|$G|H]]|$1|Y|3|-4|5|6|7|1W|8|@]|9|@]|C|$]]]|Z|$10|$5|11|12|13|C|$14|15]]|16|$5|11|12|13|C|$14|17]]|18|$5|11|12|13|C|$14|19]]]]

Since your data is already in a DataTable I think the best way is to use <a href="https://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlbulkcopy%28v=vs.110%29.aspx" rel="nofollow">SQLBulkCopy</a>. e.g.

<pre><code>string sqlConnectionString = "server, db, user, pass, etc.";
using (var bulkCopy = new SqlBulkCopy(sqlConnectionString))
{
 bulkCopy.DestinationTableName = "table";
 bulkCopy.ColumnMappings.Add("Col1", "Col1");
 bulkCopy.ColumnMappings.Add("Col2", "Col2");
 bulkCopy.ColumnMappings.Add("Col3", "Col3");
 bulkCopy.WriteToServer(dataTable);
}
</code></pre>

<hr>

For updating existing records, if you have filled your DataTable using an SqlDataAdapter you can use the <a href="https://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqldataadapter.update%28v=vs.110%29.aspx" rel="nofollow"><code>SqlDataAdapter.Update()</code></a> method. If not, then I would recommend handling the upsert in SQL. Since you are using SQL Server 2012 you can use Table Valued Parameter. The first step is to create your <a href="https://technet.microsoft.com/en-us/library/bb522526%28v=sql.105%29.aspx" rel="nofollow">Table type</a>

<pre><code>CREATE TYPE dbo.YourTableType TABLE
(
 Col1 INT,
 Col2 INT,
 Col3 INT
);
</code></pre>

This should have the same definition as your c# DataTable. 

Then next step would be to create a stored procedure that accepts this type as a parameter, and uses <code>MERGE</code> to insert or update records depending on whether or not there is a match:

<pre><code>CREATE PROCEDURE dbo.UpsertYourTable @Table dbo.YourTableType READONLY
AS
BEGIN
 MERGE dbo.YourTable WITH (HOLDLOCK) AS t
 USING @Table AS s
 ON s.Col1 = t.Col1 -- OR HOWEVER YOU IDENTIFY EXISTING RECORDS
 WHEN MATCHED THEN UPDATE
 SET Col2 = Col2,
 Col3 = Col4
 WHEN NOT MATCHED THEN 
 INSERT (Col1, Col2, Col3, Col4)
 VALUES (s.Col1, s.Col2, s.Col3, 'Test');

END;
GO
</code></pre>

Finally, to call this from c# you would use:

<pre><code>string sqlConnectionString = "server, db, user, pass, etc.";
using (var connection = new SqlConnection(sqlConnectionString))
using (var command = new SqlCommand("dbo.UpsertYourTable", connection))
{
 command.CommandType = CommandType.StoredProcedure;
 var tvp = new SqlParameter("@Table", SqlDbType.Structured);
 tvp.Value = dataTable;
 tvp.TypeName = "dbo.YourTableType";
 command.Parameters.Add(tvp);
 command.ExecuteNonQuery();
}
</code></pre>

blocks|key|2317410|text|你考虑过用SSIS做什么了吗？或者通过Bulk+Insert。不管您选择了什么选项，您都希望将连接到db+-调用的数量最小化，每次调用数千次将是密集的。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2317411|entityMap^0|J|B|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

Have you looked into doing with with SSIS? or via <code>Bulk Insert</code>. Regardless of what option you choose, you want to minimise the number of connections going to the db - calling once several thousand times is going to be intensive.

I have a tool which inserts/updates thousands of records per hour in a database. It reads the input into a <code>dataTable</code> and runs an SQL command row-by-row:
<pre><code>for(int i = 0; i &lt; dataTable.Rows.Count; i++)
{
 string sqlConnectionString = &quot;server, db, user, pass, etc.&quot;;
 SqlConnection sqlDBConnection = new SqlConnection(sqlConnectionString);

 string query = @&quot;INSERT INTO table 
 (col1, col2, col3, etc.) 
 VALUES 
 (@col1, @col2, @col3, etc.)&quot;;
 SqlCommand queryCommand = new SqlCommand(query, sqlDBConnection);

 queryCommand.Parameters.Add(&quot;@col1&quot;, SqlDbType.Int);
 queryCommand.Parameters[&quot;@col1&quot;].Value = Convert.ToInt32(dataTable.Rows[i][0]);

 queryCommand.Parameters.Add(&quot;@col2&quot;, SqlDbType.VarChar);
 queryCommand.Parameters[&quot;@col2&quot;].Value = dataTable.Rows[i][1].ToString();

 queryCommand.Parameters.Add(&quot;@col3&quot;, SqlDbType.VarChar);
 queryCommand.Parameters[&quot;@col3&quot;].Value = dataTable.Rows[i][2].ToString();

 sqlDBConnection.Open();
 queryCommand.ExecuteNonQuery();
 sqlDBConnection.Close();
}
</code></pre>
It's working perfectly, but it is slow. Do you have a quicker solution?

Quicker way to insert records to SQL db

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有一个工具，它每小时在数据库中插入/更新数千条记录。它将输入读入dataTable并逐行运行SQL命令：for(int i = 0; i < dataTable.Rows.Count; i++){ string sqlConnectionString = "server, db, user, pass, etc...

问将记录插入SQL db的更快捷方法
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