我有以下sql查询:
BEGIN TRAN;
UPDATE [dbo].[Foo] SET StatusType = 2 WHERE FooId = xxx;
INSERT INTO [dbo].[FooNotes] (FooId, Note) VALUES ('blah....', xxx);
ROLLBACK TRAN;
这是一个id列表。 例如
var fooIds = new [] { 1, 2, 3, 4, 5, 6 };
所以我希望这个......
BEGIN TRAN;
UPDATE [dbo].[Foo] SET StatusType = 2 WHERE FooId = 1;
INSERT INTO [dbo].[FooNotes] (FooId, Note) VALUES ('blah....', 1);
UPDATE [dbo].[Foo] SET StatusType = 2 WHERE FooId = 2;
INSERT INTO [dbo].[FooNotes] (FooId, Note) VALUES ('blah....', 2);
UPDATE [dbo].[Foo] SET StatusType = 2 WHERE FooId = 3;
INSERT INTO [dbo].[FooNotes] (FooId, Note) VALUES ('blah....', 3);
ROLLBACK TRAN;
可以使用Dapper完成吗?
注意:如果TRAN
使这很难,我可以放弃它。
答案 0 :(得分:3)
Dapper在内部对更改查询的支持很少(它支持IN
的列表扩展,文字注入以及一些OPTION
/ UNKNOWN
调整。这里有两个选择:
StringBuilder
创建一个可以执行的大型操作(可以通过字典进行参数化)对于后者,可能是这样的:
using(var tran = conn.BeginTransaction())
{
try
{
conn.Execute(@"
UPDATE [dbo].[Foo] SET StatusType = 2 WHERE FooId = @id;
INSERT INTO [dbo].[FooNotes] (FooId, Note) VALUES ('blah....', @id);",
fooIds.Select(id => new { id }), transaction: tran);
}
finally // in this example, we always want to rollback
{
tran.Rollback();
}
}
答案 1 :(得分:1)
你可以这样做:
using (var connection = new SqlConnection(yourConnectionString))
{
connection.Open();
using (var tx = connection.BeginTransaction())
{
foreach (var fooId in fooIds)
{
connection.Execute("UPDATE [dbo].[Foo] SET StatusType = 2 WHERE FooId = @id; INSERT INTO [dbo].[FooNotes] (FooId, Note) VALUES ('blah....', @id);", new {id = fooId}, tx);
}
tx.Rollback();
}
}