具体来说,错误是“Invalid connection string format”,意味着提供的数据库连接字符串格式不正确。 检查并核对数据库连接字符串的格式: 数据库连接字符串通常包含多个部分,如数据库类型、主机名、端口号、数据库名、用户名和密码等。 对于Oracle数据库,连接字符串的格式可能类似于jdbc:oracle:thin:@hostname:port:si...
int tblNum = (new Random()).Next() % 1000000; string nameTempDb = $"TempDatabase_{dbNum}"; string nameTempTable = $"TempTable_{tblNum}"; var sqlConnection1 = new SqlConnection(string.Format(connectionStringTemplate, "master")); var sqlCommand1 = new SqlCommand($"CREATE DATABASE {name...
The basic format of a connection string includes a series of keyword/value pairs separated by semicolons. The equal sign (=) connects each keyword and its value. To include values that contain a semicolon, single-quote character, or double-quote character, the value must be enclosed...
The basic format of a connection string includes a series of keyword/value pairs separated by semicolons. The equal sign (=) connects each keyword and its value. To include values that contain a semicolon, single-quote character, or double-quote character, the value must be enclosed in doub...
var conn=@"pwd='{0}'";conn=string.format(conn,pwd.replace("'","''");密码包括在单引号中，再将密码中的单引号替换成两个单引号。前面
bNotCreatePC) { sInsert = "insert into PlanningCrew (IDPlanLine,IDRank,DueOn,DueOff,IDVessel,Port) " + " values({0},{1},@DueOn,@DueOff,{2},'{3}'); select max(id) as ID from planningcrew"; sInsert = string.Format(sInsert, pciTarget.PlanLine, pciTarget.RankId, pciTarget....
string.Format("Insert into Nums values('{0}') ", id), conn); cmd.ExecuteNonQuery(); } } 代码很简洁,但是很多人包括我自己忍不住都会有几个重大疑问: 1、怎么并行操作n多次数据库只共用一个连接对象呢? 2、并行处理的地方加了锁,每次进行数据库操作都要Lock一下(我感觉这根本没有发挥多线程并行处理...
(); command.Connection = connection; command.CommandTimeout =15; command.CommandType = CommandType.Text; command.CommandText = queryString; connection.Open(); SqlDataReader reader = command.ExecuteReader();while(reader.Read()) { Console.WriteLine(String.Format("{0}, {1}", reader[0], reader[...
using System.Data.SqlClient; class Program { static void Main() { try { string connectString = "Server=(local);Database=AdventureWorks;UID=ab;Pwd= a!Pass@@"; Console.WriteLine("Original: " + connectString); SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder(connectString); Cons...
FormatException Invalid value within the connection string (specifically, when a Boolean or numeric value was expected but not supplied). ArgumentException The supplied connectionString is not valid. Remarks The SqlConnectionStringBuilder class provides a fixed internal collection of key/value pairs. ...