本文整理匯總了C#中ServiceStack.OrmLite.OrmLiteConnectionFactory.Scalar方法的典型用法代碼示例。如果您正苦於以下問題:C# OrmLiteConnectionFactory.Scalar方法的具體用法?C# OrmLiteConnectionFactory.Scalar怎麽用?C# OrmLiteConnectionFactory.Scalar使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類ServiceStack.OrmLite.OrmLiteConnectionFactory
的用法示例。
在下文中一共展示了OrmLiteConnectionFactory.Scalar方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: GetFirstAndLastEpoch
public void GetFirstAndLastEpoch()
{
using (var db = new OrmLiteConnectionFactory(GetSQLiteConnectionString(), SqliteDialect.Provider).OpenDbConnection())
{
using (var cmd = db.CreateCommand())
{
cmd.CommandText = "SELECT dataTimestamp FROM data ORDER BY dataTimestamp limit 1";
using (var rdr = cmd.ExecuteReader())
{
while (rdr.Read())
{
long firstEpoch = (long) rdr[0];
FirstEpoch = new DateTime(firstEpoch);
}
}
cmd.CommandText = string.Format("SELECT dataTimestamp FROM data WHERE dataTimeStamp > {0} ORDER BY dataTimestamp limit 1", FirstEpoch.Ticks);
using (var rdr = cmd.ExecuteReader())
{
while (rdr.Read())
{
var secondEpoch = new DateTime((long)rdr[0]);
EpochLengthInSeconds = (int) secondEpoch.Subtract(FirstEpoch).TotalSeconds;
}
}
cmd.CommandText = "SELECT dataTimestamp FROM data ORDER BY dataTimestamp DESC limit 1";
using (var rdr = cmd.ExecuteReader())
{
while (rdr.Read())
{
long lastEpoch = (long) rdr[0];
LastEpoch = new DateTime(lastEpoch);
}
}
EpochCount = db.Scalar<long>(db.From<AgdTableTimestampAxis1>().Select(Sql.Count("*")));
}
}
}