1090 sdr

Requirements:A Web page default.aspx contains two controls gridview1,gridview2, which load bound data by two threads respectively.binding GridView1:void Bindcategory (){SqlConnection conn = Returnsqlconn ();SqlCommand comm = new SqlCommand ("SELECT * from category", Conn);Conn. Open ();SqlDataReader SDR = Comm. ExecuteReader ();Gridview1.datasource = SDR;Gridview1.databind ();}binding GridView2:void Bindnew

; Three: Add Web Services Webservice.asmx Copy Code code as follows: Using System; Using System.Collections.Generic; Using System.Data.SqlClient; Using System.Linq; Using System.Web; Using System.Web.Script.Services; Using System.Web.Services; Namespace Html_editor { Summary description of WebService [WebService (Namespace = "http://tempuri.org/")] [WebServiceBinding (ConformsTo = wsiprofiles.basicprofile1_1)] [System.ComponentModel.ToolboxItem (False)] To allow th

The efficiency of stored procedure execution is higher than that of individual SQL statements. Sample writing stored procedures? Stored procedures are in the programmable directory of the SQL Server 2005 counterpart database. For example, to create a stored procedure Copy Code code as follows: CREATE PROCEDURE Procnewsselectnewnews As Begin Select Top N.id,n.title,n.createtime,c.name from news n INNER JOIN category C on n.caid=c.id ORDER BY n.createtime Desc End

; password=123456 "; using (SqlConnection con = new SqlConnection (Strcon))//Use connection pooling to automatically close the connection {using (SqlCommand cmd = Con. CreateCommand ()) {//asynchronously queries large result set CMD. CommandText = "waitfor delay ' 00:00:05 '; select * from User_info"; Delay 5 Seconds to connect to database con. Open (); IAsyncResult Iar=cmd. Beginexecutereader (); The Beignexecutereader method determines whethe

Day1 hdoj 1089-1096 problem, day11089-1096 First step into ACM learning, I have to strongly recommend a set of videos Https://space.bilibili.com/3071253! The video of the up Master is very similar to me. I have never learned c ++, but I still don't know much about the c language array. First, the basic input/output format is 1089-1096. The following code is provided. Search for the original question by yourself. 1089 #include This is the most basic a + B problem The only clever thing is whil

session_a, rather than by the row-Level Lock of session_a.Query on session_c: sys@ORCL> select sid,lmode,request from v$lock where sid in (1081,1090); SID LMODE REQUEST---------- ---------- ---------- 1090 0 6 1081 3 0 1090 3 0 1081 6 0sys@ORCL> select sid,event from v$session where sid in (1081,1090);

session_ B is still in the waiting status because session_ B is blocked by the TX lock of session_A, instead of being blocked by the row-Level lock of session_A, the query is performed on session_C: [SQL] sys @ ORCL> select sid, lmode, request from v $ lock where sid in (Limit ); sid lmode request ---------- 1090 0 6 1081 3 0 1090 3 0 1081 6 0 sys @ ORCL> select sid, event from v $ session where sid in (Li

DB version: Oracle database 10g Enterprise Edition release 10.2.0.5.0-64bi Operating system platform: HP-UX Alarm log: More Alert_mdsoss.log 2. Positioning problems Error Symptom: Ora-00054:resource busy acquire with nowait specified resource busy Covariance log error: SQL Err:insert into table GNTCPCNN12082015 cannot insert table 3. Analysis of the reasons In general, it may be that this table is being used, it is possible that lock is temporarily not available, see if there are any v$l

listening Runmqlsr–t type–p port–m Qmgrname Stop listening Endmqlsr-m Qmgrname MQSeries command Define dead-letter queues DEFINE qlocal (QNAME) defpsist (YES) REPLACE Set the queue Manager's dead-letter queue ALTER QMGR DEADQ (QNAME) Defining local queues DEFINE QL (QNAME) REPLACE Defining alias Queues DEFINE QALIAS (qaliasname) targq (QNAME) Remote Queue definition DEFINE Qremote (qrname) + Rname (AAA) rqmname (qmgrname) + XMITQ (Qtname) Defining model Queues DEFINE Qmodel (QNAME) Deft

methods have been prepared, the two methods are called from the Main method to test each other. To see if the SqlDataReader object returned from the method using commandbehavior.closeconnection automatically closes the connection while it is closed, as shown in code 9-3.Code 9-3 using CommandBehavior.CloseConnection:UseCommandBehavior.csPartial class Usecommandbehavior{Test methodstatic void Main (string[] args){Establish a connectionSqlConnection con = new SqlConnection (conn_string);Try{The t

) { //get the connection string in the configuration file stringConstr = configurationmanager.connectionstrings["myconn"]. ToString (); using(SqlConnection con=NewSqlConnection (CONSTR)) { stringSelstr ="select name from user1 where 1=1"; SqlCommand com=NewSqlCommand (Selstr,con); Con. Open (); SqlDataReader SDR=com. ExecuteReader (); while(

in common is the platform based on Linux Standard software. At the same time, it includes some non-free software, such as plug-ins that support MP3, DVD, and Flash. Saner Defaults Remix This is a relatively new project, but it has become popular. The basic idea of Ubuntu SDR is that Ubuntu is good, but software decisions are not ideal. In other words, this is subjective and it is difficult to evaluate the improvement of some

named ddlDep and lBoxEmp respectively. At the same time, set the AutoPostBack attribute in the DropDownList to TRUE (to make the reselect list have a response ).We need to write the corresponding code in formload and ddlDep_SelectedIndexChanged time. DdlDep_SelectedIndexChanged is the selected Space ddlDep. Double-click the time SelectedIndexChanged in properties-events on the right. Using System; using System. collections. generic; using System. web; using System. web. UI; using System. web.