/// <summary>
/// Executes this command using the specified database connection to get a data reader and then executes the specified method with the reader.
/// </summary>
/// <param name="cn"></param>
/// <param name="readerMethod"></param>
/// <param name="isLongRunning">Pass true to give the command as much time as it needs.</param>
public void Execute(DBConnection cn, Action <DbDataReader> readerMethod, bool isLongRunning = false)
{
var command = cn.DatabaseInfo.CreateCommand();
command.CommandText = "SELECT{0} {1} ".FormatWith(
cacheQueryInDatabase && cn.DatabaseInfo.QueryCacheHint.Any() ? " {0}".FormatWith(cn.DatabaseInfo.QueryCacheHint) : "",
StringTools.ConcatenateWithDelimiter(", ", selectExpressions)) + fromClause;
if (conditions.Any())
{
command.CommandText += " WHERE ";
var first = true;
var paramNumber = 0;
foreach (var condition in conditions)
{
if (!first)
{
command.CommandText += " AND ";
}
first = false;
condition.AddToCommand(command, cn.DatabaseInfo, InlineUpdate.GetParamNameFromNumber(paramNumber++));
}
}
command.CommandText = command.CommandText.ConcatenateWithSpace(orderByClause);
cn.ExecuteReaderCommand(command, readerMethod, isLongRunning: isLongRunning);
}
/// <summary>
/// Executes this command against the specified database connection and returns the number of rows affected.
/// </summary>
public int Execute(DBConnection cn)
{
if (conditions.Count == 0)
{
throw new ApplicationException("Executing an inline delete command with no parameters in the where clause is not allowed.");
}
var command = cn.DatabaseInfo.CreateCommand();
command.CommandText = "DELETE FROM " + tableName + " WHERE ";
var paramNumber = 0;
foreach (var condition in conditions)
{
condition.AddToCommand(command, cn.DatabaseInfo, InlineUpdate.GetParamNameFromNumber(paramNumber++));
command.CommandText += " AND ";
}
command.CommandText = command.CommandText.Remove(command.CommandText.Length - 5);
return(cn.ExecuteNonQueryCommand(command));
}
void Database.UpdateLineMarker( int value )
{
ExecuteDbMethod(
delegate( DBConnection cn ) {
var command = new InlineUpdate( "global_numbers" );
command.AddColumnModification( new InlineDbCommandColumnValue( "v", new DbParameterValue( value ) ) );
command.AddCondition( new EqualityCondition( new InlineDbCommandColumnValue( "k", new DbParameterValue( "LineMarker" ) ) ) );
command.Execute( cn );
} );
}
