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分享请教一个简单的有关遗漏日期的问题
列A 列B
1 201208
2 201208
3 201205
1 201207
2 201206
3 201204
1 201203
2 201204
3 201201
求教，B列录入的时候是输入的int型，我想把它作为日期形式，能不能写条句子查询出列A为1、2、3从200711到现在遗漏的日期。谢谢大神们！ 就比如列A为1的 201207-201203就缺了3个月~
1 201208
2 201208
3 201205
1 201207
2 201206
3 201204
1 201203
2 201204
3 201201
求教，B列录入的时候是输入的int型，我想把它作为日期形式，能不能写条句子查询出列A为1、2、3从200711到现在遗漏的日期。谢谢大神们！ 就比如列A为1的 201207-201203就缺了3个月~
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xumolly 2012-09-06
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谢谢3位啊！真心感谢，刚学不久，太谢谢了
孤独加百列 2012-09-06
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IF EXISTS (SELECT 1 FROM SYSOBJECTS WHERE name = 'tba')
BEGIN
DROP TABLE tba
END
GO
CREATE TABLE tba
(
ID INT,
YearMonth INT
)
GO
INSERT INTO tba
SELECT 1, 201208 UNION
SELECT 2, 201208 UNION
SELECT 3, 201205 UNION
SELECT 1, 201207 UNION
SELECT 2, 201206 UNION
SELECT 3, 201204 UNION
SELECT 1, 201203 UNION
SELECT 2, 201204 UNION
SELECT 3, 201201
GO
SELECT DISTINCT ID,CAST(CONVERT(VARCHAR(6),DATEADD(MONTH,number,'20071101'),112) AS INT) AS existsMonth
FROM tba AS B, master..spt_values AS A
WHERE type = 'P' AND number >= 0 AND CAST(CONVERT(VARCHAR(6),DATEADD(MONTH,number,'20071101'),112) AS INT) NOT IN (SELECT YearMonth FROM tba WHERE B.ID = ID) AND CAST(CONVERT(VARCHAR(6),DATEADD(MONTH,number,'20071101'),112) AS INT) <= CAST(CONVERT(VARCHAR(6),GETDATE(),112) AS INT)
ORDER BY ID,CAST(CONVERT(VARCHAR(6),DATEADD(MONTH,number,'20071101'),112) AS INT)
/*
ID existsMonth
1 200711
1 200712
1 200801
1 200802
1 200803
1 200804
1 200805
1 200806
1 200807
1 200808
1 200809
1 200810
1 200811
1 200812
1 200901
1 200902
1 200903
1 200904
1 200905
1 200906
1 200907
1 200908
1 200909
1 200910
1 200911
1 200912
1 201001
1 201002
1 201003
1 201004
1 201005
1 201006
1 201007
1 201008
1 201009
1 201010
1 201011
1 201012
1 201101
1 201102
1 201103
1 201104
1 201105
1 201106
1 201107
1 201108
1 201109
1 201110
1 201111
1 201112
1 201201
1 201202
1 201204
1 201205
1 201206
1 201209
2 200711
2 200712
2 200801
2 200802
2 200803
2 200804
2 200805
2 200806
2 200807
2 200808
2 200809
2 200810
2 200811
2 200812
2 200901
2 200902
2 200903
2 200904
2 200905
2 200906
2 200907
2 200908
2 200909
2 200910
2 200911
2 200912
2 201001
2 201002
2 201003
2 201004
2 201005
2 201006
2 201007
2 201008
2 201009
2 201010
2 201011
2 201012
2 201101
2 201102
2 201103
2 201104
2 201105
2 201106
2 201107
2 201108
2 201109
2 201110
2 201111
2 201112
2 201201
2 201202
2 201203
2 201205
2 201207
2 201209
3 200711
3 200712
3 200801
3 200802
3 200803
3 200804
3 200805
3 200806
3 200807
3 200808
3 200809
3 200810
3 200811
3 200812
3 200901
3 200902
3 200903
3 200904
3 200905
3 200906
3 200907
3 200908
3 200909
3 200910
3 200911
3 200912
3 201001
3 201002
3 201003
3 201004
3 201005
3 201006
3 201007
3 201008
3 201009
3 201010
3 201011
3 201012
3 201101
3 201102
3 201103
3 201104
3 201105
3 201106
3 201107
3 201108
3 201109
3 201110
3 201111
3 201112
3 201202
3 201203
3 201206
3 201207
3 201208
3 201209
*/
问苍天人生几何 2012-09-06
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-->try
declare @test table(A int,B int)
insert into @test
select 1, 201208 union all
select 2, 201208 union all
select 3, 201205 union all
select 1, 201207 union all
select 2, 201206 union all
select 3, 201204 union all
select 1, 201203 union all
select 2, 201204 union all
select 3, 201201
declare @ym int
set @ym=200711
select * from
(
select t.A,convert(varchar(6),dateadd(mm,number,ltrim(@ym)+'01'),112) dt
from master..spt_values,(select distinct A from @test) t
where type='P'
and number<=datediff(mm,ltrim(@ym)+'01',getdate())
) a
where not exists(select 1 from @test where B=a.dt and A=A.A)
order by A,dt
/*
A dt
----------- ------
1 200711
1 200712
1 200801
1 200802
1 200803
1 200804
1 200805
1 200806
1 200807
1 200808
1 200809
1 200810
1 200811
1 200812
1 200901
1 200902
1 200903
1 200904
1 200905
1 200906
1 200907
1 200908
1 200909
1 200910
1 200911
1 200912
1 201001
1 201002
1 201003
1 201004
1 201005
1 201006
1 201007
1 201008
1 201009
1 201010
1 201011
1 201012
1 201101
1 201102
1 201103
1 201104
1 201105
1 201106
1 201107
1 201108
1 201109
1 201110
1 201111
1 201112
1 201201
1 201202
1 201204
1 201205
1 201206
1 201209
2 200711
2 200712
2 200801
2 200802
2 200803
2 200804
2 200805
2 200806
2 200807
2 200808
2 200809
2 200810
2 200811
2 200812
2 200901
2 200902
2 200903
2 200904
2 200905
2 200906
2 200907
2 200908
2 200909
2 200910
2 200911
2 200912
2 201001
2 201002
2 201003
2 201004
2 201005
2 201006
2 201007
2 201008
2 201009
2 201010
2 201011
2 201012
2 201101
2 201102
2 201103
2 201104
2 201105
2 201106
2 201107
2 201108
2 201109
2 201110
2 201111
2 201112
2 201201
2 201202
2 201203
2 201205
2 201207
2 201209
3 200711
3 200712
3 200801
3 200802
3 200803
3 200804
3 200805
3 200806
3 200807
3 200808
3 200809
3 200810
3 200811
3 200812
3 200901
3 200902
3 200903
3 200904
3 200905
3 200906
3 200907
3 200908
3 200909
3 200910
3 200911
3 200912
3 201001
3 201002
3 201003
3 201004
3 201005
3 201006
3 201007
3 201008
3 201009
3 201010
3 201011
3 201012
3 201101
3 201102
3 201103
3 201104
3 201105
3 201106
3 201107
3 201108
3 201109
3 201110
3 201111
3 201112
3 201202
3 201203
3 201206
3 201207
3 201208
3 201209
*/
汤姆克鲁斯 2012-09-06
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--try
SELECT b.[A],a.[B]
FROM (
SELECT CONVERT(VARCHAR(6) , DATEADD(mm , number , '20071101') , 112) AS [B]
FROM master..spt_values
WHERE type = 'p'
AND number BETWEEN 0 AND DATEDIFF(mm , '20071101' , GETDATE())
) a
CROSS JOIN (
SELECT [A] FROM [tb] GROUP BY [A]
) b
EXCEPT
SELECT * FROM [tb]
