如果您使用的是sql Server 2008,则有一个称为“用户定义的表类型”的新功能。这是一个如何使用它的示例:
创建您的用户定义表类型:
CREATE TYPE [dbo].[StringList] AS TABLE(
[Item] [NVARCHAR](MAX) NULL
);
接下来,您需要在存储过程中正确使用它:
CREATE PROCEDURE [dbo].[sp_UseStringList]
@list StringList READONLY
AS
BEGIN
-- Just return the items we passed in
SELECT l.Item FROM @list l;
END
最后是在C#中使用它的一些sql:
using (var con = new sqlConnection(connstring))
{
con.open();
using (sqlCommand cmd = new sqlCommand("exec sp_UseStringList @list", con))
{
using (var table = new DataTable()) {
table.Columns.Add("Item", typeof(string));
for (int i = 0; i < 10; i++)
table.Rows.Add("Item " + i.ToString());
var pList = new sqlParameter("@list", sqlDbType.Structured);
pList.TypeName = "dbo.StringList";
pList.Value = table;
cmd.Parameters.Add(pList);
using (var dr = cmd.ExecuteReader())
{
while (dr.Read())
Console.WriteLine(dr["Item"].ToString());
}
}
}
}
要从SSMS执行此操作
DECLARE @list AS StringList
INSERT INTO @list VALUES ('Apple')
INSERT INTO @list VALUES ('Banana')
INSERT INTO @list VALUES ('Orange')
-- Alternatively, you can populate @list with an INSERT-SELECT
INSERT INTO @list
SELECT Name FROM Fruits
EXEC sp_UseStringList @list