SQL Server中创建一个临时表，这个查询

我有这个疑问：SQL Server中创建一个临时表，这个查询

DECLARE 
@ProjectID int = 3, 
@Year int = 2010, 
@MeterTypeID int = 1, 
@StartDate datetime, 
@EndDate datetime 

SET @StartDate = '07/01/' + CAST(@Year as VARCHAR) 
SET @EndDate = '06/30/' + CAST(@Year+1 as VARCHAR) 

SELECT tblMEP_Sites.Name AS SiteName, convert(varchar(10),BillingMonth ,101) AS BillingMonth, SUM(Consumption) AS Consumption 
FROM tblMEP_Projects 

JOIN tblMEP_Sites 
ON tblMEP_Projects.ID = tblMEP_Sites.ProjectID 

JOIN tblMEP_Meters 
ON tblMEP_Meters.SiteID = tblMEP_Sites.ID 

JOIN tblMEP_MonthlyData 
ON tblMEP_MonthlyData.MeterID = tblMEP_Meters.ID 

JOIN tblMEP_CustomerAccounts 
ON tblMEP_CustomerAccounts.ID = tblMEP_Meters.CustomerAccountID 

JOIN tblMEP_UtilityCompanies 
ON tblMEP_UtilityCompanies.ID = tblMEP_CustomerAccounts.UtilityCompanyID 

JOIN tblMEP_MeterTypes 
ON tblMEP_UtilityCompanies.UtilityTypeID = tblMEP_MeterTypes.ID 

WHERE tblMEP_Projects.ID = @ProjectID 
AND tblMEP_MonthlyData.BillingMonth Between @StartDate AND @EndDate 
AND tbLMEP_MeterTypes.ID = @MeterTypeID 
GROUP BY BillingMonth, tblMEP_Sites.Name 
ORDER BY month(BillingMonth)

我只是想将其存储在一个临时表中，这样我可以用它做什么。如果任何人都可以包含用于在SQL Server中创建临时表的语法，那将会很棒。

我尝试过不同的方式，但我迷路了，没有得到我想要的结果。

来源

2013-07-11 Natalia Natalie

尝试SELECT INTO语句 – maSTAShuFu

这是自动插入到不是Temptable而不实际创建临时表结构。你的选择。 – maSTAShuFu

如果你只想创建查询里面一个临时表，将允许你这样做的结果的东西，你存入它，你可以这样做以下：

DECLARE @T1 TABLE (
Item 1 VARCHAR(200) 
, Item 2 VARCHAR(200) 
, ... 
, Item n VARCHAR(500) 
)

在顶部您的查询，然后做一个

INSERT INTO @T1 
SELECT 
FROM 
(...)

来源

2013-07-11 18:08:23

更正@对＃，但对tempdb不正确，临时表和表变量都存储在tempdb中。这个表变量的神话已经持续了多年，但事实根本不是这样。谷歌几个有信誉的网站，都绝对写入磁盘。 –

我从来没有说过它或没有... –

@TomStickel - 现在不用了，现在可以创建内存表以获得更好的性能，而无需写入磁盘：https：//docs.microsoft.com/en-us/ SQL /关系的数据库/存储器内-OLTP /更快-TEMP-表和表可变逐使用存储器优化。 – Ian

如果要查询来自同一查询中临时表的结果，可以使用＃temp表或@table变量（我个人比较喜欢@）来查询您要使用的范围外部##全局临时表或使用结果创建一个新表。

DECLARE 
@ProjectID int = 3, 
@Year int = 2010, 
@MeterTypeID int = 1, 
@StartDate datetime, 
@EndDate datetime 

SET @StartDate = '07/01/' + CAST(@Year as VARCHAR) 
SET @EndDate = '06/30/' + CAST(@Year+1 as VARCHAR) 

DECLARE @MyTempTable TABLE (SiteName varchar(50), BillingMonth varchar(10), Consumption float) 

INSERT INTO @MyTempTable (SiteName, BillingMonth, Consumption) 
SELECT tblMEP_Sites.Name AS SiteName, convert(varchar(10),BillingMonth ,101) AS BillingMonth, SUM(Consumption) AS Consumption 
FROM tblMEP_Projects

来源

2013-07-11 18:05:40

'@ MyTempTable'会创建变量，'''会在'tempdb'中创建临时表 – Paritosh

@Paritosh如果OP不知道临时表的语法，我认为这个问题意味着'我需要临时将结果存储在我可以查询的表结构中（在这种情况下，＃或@将起作用） –

DECLARE #MyTempTable TABLE (SiteName varchar(50), BillingMonth varchar(10), Consumption float) 

INSERT INTO #MyTempTable (SiteName, BillingMonth, Consumption) 
SELECT tblMEP_Sites.Name AS SiteName, convert(varchar(10),BillingMonth ,101) AS BillingMonth, SUM(Consumption) AS Consumption 
FROM tblMEP_Projects....... --your joining statements

这里，# - 用它来创建内部tempdb
@表 - 用它来创建表作为变量。

来源

2013-07-11 18:06:53 Paritosh

像这样。确保删除临时表（在代码块结束时，在完成之后），否则将在随后的运行中出错。

SELECT 
    tblMEP_Sites.Name AS SiteName, 
    convert(varchar(10),BillingMonth ,101) AS BillingMonth, 
    SUM(Consumption) AS Consumption 
INTO 
    #MyTempTable 
FROM 
    tblMEP_Projects 
    JOIN tblMEP_Sites 
     ON tblMEP_Projects.ID = tblMEP_Sites.ProjectID 
    JOIN tblMEP_Meters 
     ON tblMEP_Meters.SiteID = tblMEP_Sites.ID 
    JOIN tblMEP_MonthlyData 
     ON tblMEP_MonthlyData.MeterID = tblMEP_Meters.ID 
    JOIN tblMEP_CustomerAccounts 
     ON tblMEP_CustomerAccounts.ID = tblMEP_Meters.CustomerAccountID 
    JOIN tblMEP_UtilityCompanies 
     ON tblMEP_UtilityCompanies.ID = tblMEP_CustomerAccounts.UtilityCompanyID 
    JOIN tblMEP_MeterTypes 
     ON tblMEP_UtilityCompanies.UtilityTypeID = tblMEP_MeterTypes.ID 
WHERE 
    tblMEP_Projects.ID = @ProjectID 
    AND tblMEP_MonthlyData.BillingMonth Between @StartDate AND @EndDate 
    AND tbLMEP_MeterTypes.ID = @MeterTypeID 
GROUP BY 
    BillingMonth, tblMEP_Sites.Name 

DROP TABLE #MyTempTable

来源

2013-07-11 18:09:50 Cortright

IF OBJECT_ID('tempdb..#MyTempTable') IS NOT NULL DROP TABLE #MyTempTable 

CREATE TABLE #MyTempTable (SiteName varchar(50), BillingMonth varchar(10), Consumption float) 

INSERT INTO #MyTempTable (SiteName, BillingMonth, Consumption) 
SELECT tblMEP_Sites.Name AS SiteName, convert(varchar(10),BillingMonth ,101) 
AS BillingMonth, SUM(Consumption) AS Consumption 
FROM tblMEP_Projects.......

来源

2017-04-07 08:20:28

SQL Server中创建一个临时表，这个查询

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