[英]error while executing a ms-access query
我创建了一个查询,在c#中一次插入两个ms访问表。 我得到了例外
{System.Data.OleDb.OleDbException:在SQL语句结束后找到的字符。 System.Data.OleDb.OleDbCommand.ExecuteCommandTextForSingleResult(tagDBPARAMS dbParams,Object&executeResult)的System.Data.OleDb.OleDbCommand.ExecuteCommandTextErrorHandling(OleDbHResult hr)处于System.Data的System.Data.OleDb.OleDbCommand.ExecuteCommandText(Object&executeResult)。 SystemData.Model.CompanyDetailsModel.setCompanyDetailsToDB上的System.Data.OleDb.OleDbCommand.ExecuteNonQuery()处的System.Data.OleDb.OleDbCommand.ExecuteReaderInternal(CommandBehavior behavior,String方法)中的OleDb.OleDbCommand.ExecuteCommand(CommandBehavior behavior,Object&executeResult) E:\\ Project \\ PBAttendence \\ ModifyPrivileage \\ CompanyDetails \\ Model \\ CompanyDetailsModel.cs:line 62}中的CompanyDetailsDataList _cmpDetailsList)
我的示例代码如下,请解决我的问题。 对不起,我的英语不好。
int companyID = _cmpDetailsList[0].CompanyID;
string companyName = _cmpDetailsList[0].CompanyName;
string contactID = _cmpDetailsList[0].ContactID;
string companyAddress = _cmpDetailsList[0].CompanyAddress;
if (companyID == -1)
{
OleDbCommand cmd = new OleDbCommand("Insert into CompanyDetails([CompanyName],[CompanyAddress],[ContactID]) values ('" + companyName + "','" + companyAddress + "','" + contactID + "');Insert into UserCompanyDetails([UserID],[CompanyID]) values (" + "Select [UserID] from UserDetails;" + "," + "Select @@identity;" + "); ", conn);
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
}
else
{
OleDbCommand upcmd = new OleDbCommand("update CompanyDetails set [CompanyName] = '" + companyName + "',[CompanyAddress] = '" + companyAddress + "',[ContactID] = '" + contactID + "' where [CompanyID] = @cmpID;", conn);
conn.Open();
upcmd.Parameters.AddWithValue("@cmpID", companyID);
upcmd.ExecuteNonQuery();
conn.Close();
}
现在我分成两个插入命令,但我收到错误{System.Data.OleDb.OleDbException:语法错误。 在查询表达式'从UserDetails中选择[UserID];
OleDbCommand cmd = new OleDbCommand("Insert into CompanyDetails([CompanyName],[CompanyAddress],[ContactID]) values ('" + companyName + "','" + companyAddress + "','" + contactID + "');", conn);
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
OleDbCommand cmd1 = new OleDbCommand("Insert into UserCompanyDetails([UserID],[CompanyID]) values (" + "Select [UserID] from UserDetails;" + "," + "Select @@identity" + ");", conn);
conn.Open();
cmd1.ExecuteNonQuery();
conn.Close();
问题是这行代码:
OleDbCommand cmd = new OleDbCommand("Insert into CompanyDetails([CompanyName],[CompanyAddress],[ContactID]) values ('" + companyName + "','" + companyAddress + "','" + contactID + "');Insert into UserCompanyDetails([UserID],[CompanyID]) values (" + "Select [UserID] from UserDetails;" + "," + "Select @@identity;" + "); ", conn);
在同一个OleDbCommand
有两个insert
语句。 尝试将其分为两个不同的步骤:
希望这对你有所帮助
你不能拥有; 在Access中的查询中。 请参阅http://office.microsoft.com/en-us/access-help/HV080760224.aspx您必须按照@juanreyesv的建议单独执行两个插入操作
你将不得不做3个查询,
"Insert into CompanyDetails([CompanyName],[CompanyAddress],[ContactID]) values ('" + companyName + "','" + companyAddress + "','" + contactID + "')
Select @@identity
获取Select @@identity
并将其存储在变量say idnt
"Insert into UserCompanyDetails([UserID],[CompanyID]) Select UserID, " + idnt.ToString() + " from UserDetails"
请参阅http://msdn.microsoft.com/en-us/library/ks9f57t0%28VS.71%29.aspx
首先,使用原始sql命令然后生成sql的代码会更容易。
您可能会考虑制作存储过程,因为您的命令变得有点复杂
如果我是对的,你目前要做的是:
Insert into table1(x,y,z) values a,b,c;
Insert into table2(x,y) values select * from table3; , @@identity
第二个sql命令在语法和逻辑上都是无效的,因为您在命令期间插入新记录,所以@@ identity不会是静态的。
我的建议是做这样的事情:
Insert into table1(x,y,z) values a,b,c;
declare @table1Id int = @@identity
Insert into table2(x,y) select colA, @table1Id from table3;
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