c# - 如何使用SQLiteCommand进行插入查询？

Question

我有一段代码，但并不总是对我有用。有时它返回有关数据库锁定的错误，有时返回有关连接的错误。

这是代码:

string sql = String.Format("insert into {0}({1}) values({2});", tableName, columns, values);
SQLiteConnection myConn = null;
try 
{
    myConn = new SQLiteConnection(dbConnection);
    myConn.Open();

    using(SQLiteCommand sqCommand = new SQLiteCommand(sql))
    {
        sqCommand.CommandText = sql;
        int rows = sqCommand.ExecuteNonQuery();
        return !(rows == 0);
    }
} 
finally 
{
    myConn.Close();
}

我做错了什么？

错误是:

No connection associated with this command

   в System.Data.SQLite.SQLiteCommand.InitializeForReader()
   в System.Data.SQLite.SQLiteCommand.ExecuteReader(CommandBehavior

behavior) в System.Data.SQLite.SQLiteCommand.ExecuteNonQuery(CommandBehavior behavior) в System.Data.SQLite.SQLiteCommand.ExecuteNonQuery()

行内:

int rows = sqCommand.ExecuteNonQuery();

Answer 1

你忘了assign 连接到命令:

No connection associated with this command

using(SQLiteCommand sqCommand = new SQLiteCommand(sql))

因此应该是:

using(SQLiteCommand sqCommand = new SQLiteCommand(sql, myConn))