如何从存储过程中仅选择特定列:
DECLARE @return_value int
EXEC @return_value = [dbo].[PositionsForNAV_PairTrades]
@ComparePeriod = 'MTD',
@OverrideCompareDate = '2010-12-31',
@PortfolioId = '5',
@OverrideStartDate = NULL,
@NewPositionsOnly = 0,
@ReportType = 0,
@SourceID = 13,
@SecurityType = 'Bond',
@LongShort = 1
GO
它给了我很多列,请帮助我如何从结果中仅选择 3-4 个特定列。