public TValue Min <TValue>(System.Linq.Expressions.Expression <Func <T, object> > field)
{
var parameters = CreateParamterCollection();
string sql = new Queryable <T>(DbReader)
.Min(field)
.OutputSqlString(parameters);
return(DbReader.ExecuteScalar <TValue>(sql, parameters));
}
public TValue Min <TValue>(Expression <Func <T, object> > field, Expression <Func <T, bool> > logical)
{
var parameters = CreateParamterCollection();
string sql = new Queryable <T>(DbReader)
.Min(field)
.Where(logical)
.OutputSqlString(parameters);
return(DbReader.ExecuteScalar <TValue>(sql, parameters));
}
public TValue Sum <TValue>(System.Linq.Expressions.Expression <Func <T, object> > field, LogicalBinaryExpression logical)
{
var parameters = CreateParamterCollection();
string sql = new Queryable <T>(DbReader)
.Sum(field)
.Where(logical)
.OutputSqlString(parameters);
return(DbReader.ExecuteScalar <TValue>(sql, parameters));
}