Comments on: SQL SERVER – Find Gaps in The Sequence

By: Rajesh S

Rajesh S — Fri, 12 Mar 2010 12:03:07 +0000

Hi Dave,

DECLARE @test Table(InvOID varchar(10))
INSERT INTO @test
VALUES(‘INV0096′),(‘INV0097′),(‘INV0100′)
DECLARE @MinOID INT
DECLARE @MaxOID INT

SELECT @MinOID = MIN(CONVERT(INT,SUBSTRING(InvOID,4,4))) FROM @test
SELECT @MaxOID = MAX(CONVERT(INT,SUBSTRING(InvOID,4,4))) FROM @test

WHILE(@MinOID <= @MaxOID)
BEGIN
IF NOT EXISTS(SELECT 1 FROM @test WHERE InvOID = 'INV'+ RIGHT('0000'+CONVERT(VARCHAR(4),@MinOID),4))
BEGIN
SELECT 'INV'+CONVERT(VARCHAR(4),@MinOID)
END
SET @MinOID = @MinOID + 1
END
Cheers,
Rajesh S

By: jyoti

jyoti — Fri, 18 Sep 2009 13:44:03 +0000

declare
c2 cursor for select data from test
declare
@varStrings varchar(50),
@i int
begin
open c2
fetch c2 into @varStrings
set @i=96
while @@fetch_status=0
begin
if cast(substring(@varStrings,4,4) as int) @i
begin
select ‘inv’+cast(@i as varchar)
set @i=@i+2
end
else
begin
set @i=@i+1
end
fetch c2 into @varStrings
end
close c2
deallocate c2
end

By: K K Rakesh Varma

K K Rakesh Varma — Wed, 09 Sep 2009 13:56:24 +0000

declare @Org_tab table (string varchar(100))
declare @Comp_tab table (Comp_value int)
declare @min int,@max int,@i int
insert into @Org_tab
select ‘INV0096′
union all
select ‘INV0097′
union all
select ‘INV0099′
union all
select ‘INV0100′
union all
select ‘INV0102′
union all
select ‘INV0103′
set @min=(select min(cast(substring(string,4,4) as int)) from @Org_tab)
set @max=(select max(cast(substring(string,4,4) as int)) from @Org_tab)
while @min <= @max
begin
insert into @Comp_tab(Comp_value) select @min
select @min = @min + 1
end
select distinct Comp_value from @Comp_tab,@Org_tab
where Comp_value not in (select cast(substring(string,4,4) as int) from @Org_tab)

By: fly

fly — Tue, 08 Sep 2009 06:33:45 +0000

sorry,
but < and > disappeared
where clause

where data is null
and i <= (select max(cast(right(data, 4) as int)) from @tbl)
and i >= (select min(cast(right(data, 4) as int)) from @tbl)

By: fly

fly — Tue, 08 Sep 2009 06:32:09 +0000

declare @tbl table (data varchar(10))
insert into @tbl
select ‘inv0096′
union all
select ‘inv0097′
union all
select ‘inv0099′
union all
select ‘inv0100′
union all
select ‘inv0102′
union all
select ‘inv0103′
union all
select ‘inv0106′
union all
select ‘inv0110′

declare @i int
select @i = 0
declare @integer table(i int)
while @i < 1000
begin
insert into @integer(i) select @i
select @i = @i + 1
end

select i
from @integer
left join @tbl on i = cast(right(data, 4) as int)
where data is null
and i = (select min(cast(right(data, 4) as int)) from @tbl)

By: Ashish

Ashish — Mon, 07 Sep 2009 05:58:25 +0000

not the best way but this is also working

DECLARE @Test TABLE (Data VARCHAR(10))
INSERT INTO @test
SELECT ‘INV0096′
UNION ALL
SELECT ‘INV0097′
UNION ALL
SELECT ‘INV0099′
UNION ALL
SELECT ‘INV0100′
UNION ALL
SELECT ‘INV0102′
UNION ALL
SELECT ‘INV0103′
UNION ALL
SELECT ‘INV0106′
UNION ALL
SELECT ‘INV0110′

select number from master..spt_values where
number not in (select right(data,4) from @test) and
number between (select min(right(data,4)) from @test)
and (select max(right(data,4)) from @test) and TYPE=’P’

By: Luca Zavarella

Luca Zavarella — Sun, 06 Sep 2009 12:29:46 +0000

DECLARE @Data TABLE (Datum VARCHAR(10));

INSERT INTO @Data
SELECT ‘INV0096′
UNION ALL
SELECT ‘INV0097′
UNION ALL
SELECT ‘INV0099′
UNION ALL
SELECT ‘INV0100′
UNION ALL
SELECT ‘INV0102′
UNION ALL
SELECT ‘INV0103′
UNION ALL
SELECT ‘INV0106′
UNION ALL
SELECT ‘INV0110′;

WITH DataInt(Item)
AS
(
SELECT CAST(SUBSTRING(Datum, 4, 4) AS INT)
FROM @Data
),
Nbrs_3( n ) AS ( SELECT 1 UNION SELECT 0 ),
Nbrs_2( n ) AS ( SELECT 1 FROM Nbrs_3 n1 CROSS JOIN Nbrs_3 n2 ),
Nbrs_1( n ) AS ( SELECT 1 FROM Nbrs_2 n1 CROSS JOIN Nbrs_2 n2 ),
Nbrs_0( n ) AS ( SELECT 1 FROM Nbrs_1 n1 CROSS JOIN Nbrs_1 n2 ),
Nbrs ( n ) AS ( SELECT 1 FROM Nbrs_0 n1 CROSS JOIN Nbrs_0 n2 ),
Integers (n)
AS
(
SELECT D.n
FROM ( SELECT ROW_NUMBER() OVER (ORDER BY n)
FROM Nbrs ) AS D(n)
WHERE D.n >= (SELECT MIN(Item)
FROM DataInt)
AND D.n <= (SELECT MAX(Item)
FROM DataInt)
)
SELECT Integers.*
FROM DataInt
RIGHT JOIN Integers
ON DataInt.Item = Integers.n
WHERE DataInt.Item IS NULL