gnss sdr

usingSystem; usingSystem.Collections.Generic; usingSystem.Linq; usingSystem.Text; usingSystem.Data; usingSystem.Data.SqlClient; namespaceBook.dal { Public classDBHelper {PrivateSqlConnection conn =NULL; PrivateSqlCommand cmd =NULL; PrivateSqlDataReader SDR =NULL; PublicDBHelper () {stringConnStr ="data source=.; Database=mybookshop;uid=sa;pwd=123"; Conn=NewSqlConnection (CONNSTR); } PrivateSqlConnection Getconn () {if(Conn. state = =connec

/** * Creator: CALVINR * Description: Database helper class **/namespacestudy.utilities.mysql_connect{/// ///Summary description of Mysqlhelper/// Public classMysqlhelper {PrivateMysqlconnection conn =NULL; PrivateMysqlcommand cmd =NULL; PrivateMysqldatareader SDR; PrivateMysqldataadapter SDA =NULL; PublicMysqlhelper () {stringConnStr = configurationmanager.connectionstrings["connectstring"]. ConnectionString;//get the MySQL database connect

";SqlCommand cmd = new SqlCommand (SQL, conn );SqlParameter pUserName = cmd. Parameters. Add ("@ UserName ",SqlDbType. VarChar, 30 );SqlParameter pUserPwd = cmd. Parameters. Add ("@ UserPwd ",SqlDbType. VarChar, 150 );PUserName. Value = context. Request. Form ["UserName"];PUserPwd. Value = Common. MD5 (context. Request. Form ["UserPwd"]);Conn. Open ();SqlDataReader sdr =Cmd. ExecuteReader (CommandBehavior. CloseConnection );If (

. storedprocedure; Cmd. Parameters. Add ("@ imageid", sqldbtype. INT );// The imageid selected in the dropdownlistCmd. Parameters ["@ imageid"]. value = int32.parse (ddlimage. selectedvalue ); Con. open ();Sqldatareader SDR = cmd. executereader (); Response. clearcontent ();Response. contenttype = "image/JPEG ";While (SDR. Read ()){// Read the binary of the corresponding record and display itResponse. binar

= true; user instance = true " )) {Sqlcommand cmd = New Sqlcommand ( " Spinsertimage " , Con );Cmd. commandtype = Commandtype. storedprocedure;Cmd. Parameters. Add ( " @ Imagebinary " , System. Data. sqldbtype. Image ); // Binary data of an image Cmd. Parameters [ " @ Imagebinary " ]. Value = Ms. toarray ();Con. open (); Try {//ProcedureCmd. executenonquery ();Response. Write ("OK");} Catch {Response. Write ("Error");} } IMG. Dispose ();Ms. Dispose ();Ms.

Finally, the problem of getting output parameters using sqldatareader is solved! The root cause is that you do not have a deep understanding of the sqldatareader data reader! Let's take a look at my example: Create procedure h_transfer ( @ Returnvalue varchar (10) Output ) As Declare @ isanswer char (2) Select @ isanswer = isanswer from question If (isanswer = 1) Begin Set @ returnvalu = 'handled' End Else (isanswer = 0) Begin Set @ retur

Protected String Jigou (){ String Sqlcomm = "" ;Sqlconnection myconn = DB. mychinaedp (); String Strcontent = "" ;Myconn. open (); Int I = 0 ; // Number of news records per line Int Zong = 20 ; // Define the total number of words Int Number = 0 ; // Number of spaces to add String Kongge = "" ; // Space Accumulation Sqlcommand mycomm = New Sqlcommand (sqlcomm, mycon

)). replace ("CP1", Sy. getsjuserbyid (SID) + strurl );}}Else{If (Tb. tolower () = "192" | TB. tolower () = "127 "){Response. Redirect ("http: //" + STR + "/userweb/" + Sy. getmb (SID) + strurl );}Else{Response. Redirect ("" + weburl + "/userweb/" + Sy. getmb (SID) + strurl );}}} }Else{If (! Sy. supplymembernameexistt (strlist [0]. tostring ())){ System. Web. httpcontext. Current. response. Write (getym ("" + weburl + "/error. aspx "));Response. End ();Return; }Else{ Sqldatareader

Column NameFrom table nameWhere conditionGROUP by group column nameHaving filter conditionsOrder by sort column name descDatabase Connection Section---------------------Database connection steps:First, create the DBHelper class1. Create a connection stringStatic string constr=@ "server=.; Database=myschool;uid=sa;pwd=sa; ";Private StaticSqlConnection con; Public StaticSqlConnection con{Get { if(con==NULL) {con=NewSqlConnection (CONSTR); Con. Open (); }

Http://www.cnblogs.com/spartan/archive/2011/05/06/2038747.htmlSdramSDRAM (Synchronous dynamic random access memory), synchronous, refers to the memory work requires a step clock , The transmission of internal commands and the transfer of data are based on it, dynamic refers to the storage array needs to be constantly refreshed to ensure that the data is not lost, random refers to the data is not linear storage , but by the specified address to read and write data. The current 168-wire 64bit band

In general, we use ADO. NET to query the database and return the generic set; and use SqlDataReader to read data and store the data to the object row by row. Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->/// /// Obtain the UserInfo generic set/// /// /// /// Public IList {Using (SqlConnection conn = new SqlConnection (connStr )){Using (SqlCommand cmd = new SqlCommand (sqlStr, conn )){SqlDataReader sd