Here is the procedure where I use a statement with temp table:
CREATE OR REPLACE PROCEDURE dept_query (
p_table CHAR(10),
p_date CHAR(10),
p_start CHAR(6)
)
LANGUAGE SQL
BEGIN
DECLARE v_table VARCHAR(128);
DECLARE v_colname VARCHAR(128);
DECLARE v_month CHAR(6);
DECLARE v_int integer default 0;
DECLARE stat VARCHAR(1000);
DECLARE stmt STATEMENT;
.......
set stat = 'insert into cte1 select colname, row_number() over() as row_nbr from syscat.columns where tabname = ?';
PREPARE stmt FROM stat;
execute stmt using p_table;
set stat = "insert into OH09ZC1.cte3 -- cte, cte1 & cte3 are ordinary tables
with cte2 (list, cnt, cnt_max) AS
(SELECT VARCHAR('', 32000), 0, count(colname) FROM OH09ZC1.cte1
UNION ALL
SELECT
case when cte2.list = '' THEN RTRIM(CHAR(cte1.colname))
else cte2.list || ', ' || RTRIM(CHAR(cte1.colname)) end,
cte2.cnt + 1,
cte2.cnt_max
FROM OH09ZC1.cte1, cte2
WHERE cte1.row_nbr = cte2.cnt + 1 AND cte2.cnt < cte2.cnt_max )
select list FROM cte2 where cte2.cnt = cte2.cnt_max fetch first 1 rows only";
PREPARE stmt FROM stat;
execute stmt;
......
END;
This gets me a list of the columns in a table.
The problem is that 'insert into OH09ZC1.cte3 with cte2 (list, cnt, cnt_max) AS ' doesn't contain any long names, so why do I get this error:
SQL0107N The name "insert into OH09ZC1.cte3 with cte2 (list, cnt, cnt_max) AS (SELEC" is too long. The maximum length is "128".
I also got the same error when 'insert into OH09ZC1.cte3' was not there.
set stat = "insert into... -- SQL string literals should use single quotation marks. Double quotation marks indicate an identifier, and "insert into cte3 ...", in addition to being too long for an identifier, is invalid anyway.
Related
I wrote query:
select * from tbl1 as tbl1
where tbl1.pkey >= cast(080138738 as varchar(10))
and tbl1.pkey <= cast(080138738 as var char(10);
tbl1 contains row that its pkey value is 08013878 but this query dosn't retutn any rows.
Ok, let's start guessing, if you don't want to provide some fully reproducible example.
select *
from
(
VALUES
-- doesn't return a row
'080138738'
-- returns a row
--'80138738'
) tbl1 (pkey)
where tbl1.pkey >= CAST (080138738 as varchar(10))
and tbl1.pkey <= CAST (080138738 as varchar(10))
If you have pkey of VARCHAR data type then look at the example above.
Let's look at the result of the CAST (080138738 as varchar(10)) expression.
The integer 080138738 value is equal to the 80138738 one without leading zero(es), and namely this value is converted to the '80138738' VARCHAR value.
But the following query returns no rows obviously:
SELECT 1
FROM SYSIBM.SYSDUMMY1
WHERE '080138738' >=
'80138738' -- the result of CAST (080138738 as varchar(10))
AND '080138738' <=
'80138738' -- the result of CAST (080138738 as varchar(10))
The solution is to use correct data type for parameters.
--# SET TERMINATOR #
CREATE TABLE TBL1 (PKEY VARCHAR (10))#
INSERT INTO TBL1 (PKEY) VALUES '080138738'#
BEGIN
DECLARE V_STMT VARCHAR (500);
DECLARE V_CNT INT;
DECLARE C1 CURSOR FOR S1;
SET V_STMT =
'SELECT COUNT (*) FROM TBL1 '
|| 'WHERE pkey >= cast(? as varchar(10)) and pkey <= cast(? as varchar(10))';
PREPARE S1 FROM V_STMT;
-- Correct - using VARCHAR constants
OPEN C1 USING '080138738', '080138738';
-- Wrong - using INT constants
-- OPEN C1 USING 080138738, 080138738;
FETCH C1 INTO V_CNT;
-- We throw an exception, if the result is unexpected
IF V_CNT <> 1 THEN
SIGNAL SQLSTATE '75000' SET MESSAGE_TEXT = 'Not expected result';
END IF;
END
#
dbfiddle link
Context: I am exploring a new database (in MS SQL server), and I want to know for each table, all columns that have null values.
I.e. result would look something like this:
table column nulls
Tbl1 Col1 8
I have found this code here on stackoverflow, that makes a table of table-columnnames - without the WHERE statement which is my addition.
I tried to filter for nulls in WHERE statement, but then the table ends up empty, and I see why - i am checking if the col name is actually null, and not its contents. But can't figure out how to proceed.
select schema_name(tab.schema_id) as schema_name,
tab.name as table_name,
col.name as column_name
from sys.tables as tab
inner join sys.columns as col
on tab.object_id = col.object_id
left join sys.types as t
on col.user_type_id = t.user_type_id
-- in this where statement, I am trying to filter for nulls, but i get an empty result. and i know there are nulls
where col.name is null
order by schema_name, table_name, column_id
I also tried this (see 4th line):
select schema_name(tab.schema_id) as schema_name,
tab.name as table_name,
col.name as column_name
,(select count(*) from tab.name where col.name is null) as countnulls
from sys.tables as tab
inner join sys.columns as col
on tab.object_id = col.object_id
left join sys.types as t
on col.user_type_id = t.user_type_id
order by schema_name, table_name, column_id
the last one returns an error "Invalid object name 'tab.name'."
column name can't be null but if you mean nullable column (column that accept null value) that has null value at least so you can use following statement:
declare #schema varchar(255), #table varchar(255), #col varchar(255), #cmd varchar(max)
DECLARE getinfo cursor for
SELECT schema_name(tab.schema_id) as schema_name,tab.name , col.name from sys.tables as tab
inner join sys.columns as col on tab.object_id = col.object_id
where col.is_nullable =1
order by schema_name(tab.schema_id),tab.name,col.name
OPEN getinfo
FETCH NEXT FROM getinfo into #schema,#table,#col
WHILE ##FETCH_STATUS = 0
BEGIN
set #schema = QUOTENAME(#schema)
set #table = QUOTENAME(#table)
set #col = QUOTENAME(#col)
SELECT #cmd = 'IF EXISTS (SELECT 1 FROM '+ #schema +'.'+ #table +' WHERE ' + #col + ' IS NULL) BEGIN SELECT '''+#schema+''' as schemaName, '''+#table+''' as tablename, '''+#col+''' as columnName, * FROM '+ #schema +'.'+ #table +' WHERE ' + #col + ' IS NULL end'
EXEC(#cmd)
FETCH NEXT FROM getinfo into #schema,#table,#col
END
CLOSE getinfo
DEALLOCATE getinfo
that use cursor on all nullable columns in every table in the Database then check if this column has at least one null value if yes will select schema Name, table name, column name and all records that has null value in this column
but if you want to get only count of nulls you can use the following statement:
declare #schema varchar(255), #table varchar(255), #col varchar(255), #cmd varchar(max)
DECLARE getinfo cursor for
SELECT schema_name(tab.schema_id) as schema_name,tab.name , col.name from sys.tables as tab
inner join sys.columns as col on tab.object_id = col.object_id
where col.is_nullable =1
order by schema_name(tab.schema_id),tab.name,col.name
OPEN getinfo
FETCH NEXT FROM getinfo into #schema,#table,#col
WHILE ##FETCH_STATUS = 0
BEGIN
set #schema = QUOTENAME(#schema)
set #table = QUOTENAME(#table)
set #col = QUOTENAME(#col)
SELECT #cmd = 'IF EXISTS (SELECT 1 FROM '+ #schema +'.'+ #table +' WHERE ' + #col + ' IS NULL) BEGIN SELECT '''+#schema+''' as schemaName, '''+#table+''' as tablename, '''+#col+''' as columnName, count(*) as nulls FROM '+ #schema +'.'+ #table +' WHERE ' + #col + ' IS NULL end'
EXEC(#cmd)
FETCH NEXT FROM getinfo into #schema,#table,#col
END
that use cursor on all nullable columns in every table in the Database then check if this column has at least one null value if yes will select schema Name, table name, column name and count all records that has null value in this column
I want to create a function like below which inserts data as per the input given. But I keep on getting an error about undetermined dollar sign.
CREATE OR REPLACE FUNCTION test_generate
(
ref REFCURSOR,
_id INTEGER
)
RETURNS refcursor AS $$
DECLARE
BEGIN
DROP TABLE IF EXISTS test_1;
CREATE TEMP TABLE test_1
(
id int,
request_id int,
code text
);
IF _id IS NULL THEN
INSERT INTO test_1
SELECT
rd.id,
r.id,
rd.code
FROM
test_2 r
INNER JOIN
raw_table rd
ON
rd.test_2_id = r.id
LEFT JOIN
observe_test o
ON
o.raw_table_id = rd.id
WHERE o.id IS NULL
AND COALESCE(rd.processed, 0) = 0;
ELSE
INSERT INTO test_1
SELECT
rd.id,
r.id,
rd.code
FROM
test_2 r
INNER JOIN
raw_table rd
ON rd.test_2_id = r.id
WHERE r.id = _id;
END IF;
DROP TABLE IF EXISTS tmp_test_2_error;
CREATE TEMP TABLE tmp_test_2_error
(
raw_table_id int,
test_2_id int,
error text,
record_num int
);
INSERT INTO tmp_test_2_error
(
raw_table_id,
test_2_id,
error,
record_num
)
SELECT DISTINCT
test_1.id,
test_1.test_2_id,
'Error found ' || test_1.code,
0
FROM
test_1
WHERE 1 = 1
AND data_origin.id IS NULL;
INSERT INTO tmp_test_2_error
SELECT DISTINCT
test_1.id,
test_1.test_2_id,
'Error found ' || test_1.code,
0
FROM
test_1
INNER JOIN
data_origin
ON
data_origin.code = test_1.code
WHERE dop.id IS NULL;
DROP table IF EXISTS test_latest;
CREATE TEMP TABLE test_latest AS SELECT * FROM observe_test WHERE 1 = 2;
INSERT INTO test_latest
(
raw_table_id,
series_id,
timestamp
)
SELECT
test_1.id,
ds.id AS series_id,
now()
FROM
test_1
INNER JOIN data_origin ON data_origin.code = test_1.code
LEFT JOIN
observe_test o ON o.raw_table_id = test_1.id
WHERE o.id IS NULL;
CREATE TABLE latest_observe_test as Select * from test_latest where 1=0;
INSERT INTO latest_observe_test
(
raw_table_id,
series_id,
timestamp,
time
)
SELECT
t.id,
ds.id AS series_id,
now(),
t.time
FROM
test_latest t
WHERE t.series_id IS DISTINCT FROM observe_test.series_id;
DELETE FROM test_2_error re
USING t
WHERE t.test_2_id = re.test_2_id;
INSERT INTO test_2_error (test_2_id, error, record_num)
SELECT DISTINCT test_2_id, error, record_num FROM tmp_test_2_error ORDER BY error;
UPDATE raw_table AS rd1
SET processed = case WHEN tre.raw_table_id IS null THEN 2 ELSE 1 END
FROM test_1 tr
LEFT JOIN
tmp_test_2_error tre ON tre.raw_table_id = tr.id
WHERE rd1.id = tr.id;
OPEN ref FOR
SELECT 1;
RETURN ref;
OPEN ref for
SELECT o.* from observe_test o
;
RETURN ref;
OPEN ref FOR
SELECT
rd.id,
ds.id AS series_id,
now() AS timestamp,
rd.time
FROM test_2 r
INNER JOIN raw_table rd ON rd.test_2_id = r.id
INNER JOIN data_origin ON data_origin.code = rd.code
WHERE o.id IS NULL AND r.id = _id;
RETURN ref;
END;
$$ LANGUAGE plpgsql VOLATILE COST 100;
I am not able to run this procedure.
Can you please help me where I have done wrong?
I am using squirrel and face the same question as you.
until I found that:
-- Note that if you want to create the function under Squirrel SQL,
-- you must go to Sessions->Session Properties
-- then SQL tab and change the Statement Separator from ';' to something else
-- (for intance //). Otherwise Squirrel SQL sends one piece to the server
-- that stops at the first encountered ';', and the server cannot make
-- sense of it. With the separator changed as suggested, you type everything
-- as above and end with
-- ...
-- end;
-- $$ language plpgsql
-- //
--
-- You can then restore the default separator, or use the new one for
-- all queries ...
--
Disclaimer: I'm dealing with a rather old legacy system so any comments telling me about poor design are redundant, although I do genuinely appreciate any such sentiment. There is a new version that solves most legacy problems but we still have to maintain the old system, so basically, we have to manage for now.
I have a table that looks like this (yes, that is a single column, I know):
And I need a view (for reporting purposes) that will dynamically process the data in said table and return this:
The values are \n-delimited (shudder) and you can assume there will always be the same number of values in each cell (9 in the example, although other databases could have 4 or 12 or any number), although I suppose having NULL-insertion in the event of missing values couldn't hurt. They will also always be in a matching order (as in the example, 'AUD', 'Australian Dollar', and '$' are all the first values in their respective cells, and so on).
I've found various approaches to splitting a single cell out into a view, but nothing that covers merging data in such a way as I require. Sitting at home with a cold has not helped my research capabilities. Help me StackOverflow, you're my only hope!
Bonus points for tidy, relatively readable SQL examples, although I'm anticipating messiness as a natural by-product of the hackish nature of my required solution.
Something like this. I didn't take the time to build out the tables, but it should be fairly obvious where you can replace my variables with your rows. You will also want to do a replace char(10) where I have used commas. You could package it up in a table valued function and then call as a view.
declare #xml1 xml
declare #xml2 xml
declare #xml3 xml
declare #c1 nvarchar(250)
declare #c2 nvarchar(250)
declare #c3 nvarchar(250)
set #c1 = N'AUD,CAD,EUR,GBP,JPY,NZD,USD,KES,CHF';
set #c2 = N'Australian Dollar,Canadian Dollar,Euro,Pound Sterling,Yen,New Zealand Dollar,United States Dollar,Kenyan Shilling, Swiss Franc';
set #c3 = N'$,$,C,L,Y,$,$,K,F';
-- you'd use replace(#c1, char(10), '</r><r>') etc etc for /n delimited code
set #xml1 = N'<root><r>' + replace(#c1,',','</r><r>') + '</r></root>';
set #xml2 = N'<root><r>' + replace(#c2,',','</r><r>') + '</r></root>';
set #xml3 = N'<root><r>' + replace(#c3,',','</r><r>') + '</r></root>';
select code.code, name.name, symbol.symbol
from
(select ROW_NUMBER() over (order by ##rowcount) as ck,
c.value('.','varchar(max)') as [code]
from #xml1.nodes('//root/r') as a(c)) as code
inner join
(select ROW_NUMBER() over (order by ##rowcount) as nk,
n.value('.','varchar(max)') as [name]
from #xml2.nodes('//root/r') as a(n)) as name on code.ck = name.nk
inner join
(select ROW_NUMBER() over (order by ##rowcount) as sk,
s.value('.','varchar(max)') as [symbol]
from #xml3.nodes('//root/r') as a(s)) as symbol on symbol.sk = name.nk
You can run this as a single script in SSMS for verification that it works. No schema necessary.
Using Jeff Moden's Tally Ho! CSV splitter:
CREATE FUNCTION [dbo].[DelimitedSplit8K]
--===== Define I/O parameters
(#pString VARCHAR(8000), #pDelimiter CHAR(1))
--WARNING!!! DO NOT USE MAX DATA-TYPES HERE! IT WILL KILL PERFORMANCE!
RETURNS TABLE WITH SCHEMABINDING AS
RETURN
--===== "Inline" CTE Driven "Tally Table" produces values from 1 up to 10,000...
-- enough to cover VARCHAR(8000)
WITH
E1(N) AS (
SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL
SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL
SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1
), --10E+1 or 10 rows
E2(N) AS (SELECT 1 FROM E1 a, E1 b), --10E+2 or 100 rows
E4(N) AS (SELECT 1 FROM E2 a, E2 b), --10E+4 or 10,000 rows max
cteTally(N) AS (--==== This provides the "base" CTE and limits the number of rows right up front
-- for both a performance gain and prevention of accidental "overruns"
SELECT TOP (ISNULL(DATALENGTH(#pString),0)) ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) FROM E4
),
cteStart(N1) AS (--==== This returns N+1 (starting position of each "element" just once for each delimiter)
SELECT 1 UNION ALL
SELECT t.N+1 FROM cteTally t WHERE SUBSTRING(#pString,t.N,1) = #pDelimiter
),
cteLen(N1,L1) AS(--==== Return start and length (for use in substring)
SELECT s.N1,
ISNULL(NULLIF(CHARINDEX(#pDelimiter,#pString,s.N1),0)-s.N1,8000)
FROM cteStart s
)
--===== Do the actual split. The ISNULL/NULLIF combo handles the length for the final element when no delimiter is found.
SELECT ItemNumber = ROW_NUMBER() OVER(ORDER BY l.N1),
Item = SUBSTRING(#pString, l.N1, l.L1)
FROM cteLen l
;
and inline CTE data like this
with
data as (select Num,Currencies from (values
(1,'AUD'+char(10)+'CAD'+char(10)+'USD'+char(10)+'KES')
,(2,'Australian DOllar'+char(10)+'Canadian Dollar'+char(10)+'US Dollar'+char(10)+'Kenyan Shilling')
,(3,'$'+char(10)+'$'+char(10)+'$'+char(10)+'k')
)data(Num,Currencies)
),
The solution is as simple as this:
map as (select * from (values
(1,'Code')
,(2,'Name')
,(3,'Symbol')
)map(Num,Col )
)
select
ItemNumber
,max(Code) as Code
,max(Name) as Name
,max(Symbol) as Symbol
from (
select
map.Num
,map.Col
,c.Item
,c.ItemNumber
from data
join map
on map.Num = data.Num
cross apply dbo.DelimitedSplit8K(data.Currencies,char(10)) c
) t
pivot (max(Item) for Col in (Code,Name,Symbol)) pvt
group by ItemNumber
to give us:
ItemNumber Code Name Symbol
-------------- ---- -------------------- ---------------
1 AUD Australian DOllar $
2 CAD Canadian Dollar $
3 USD US Dollar $
4 KES Kenyan Shilling k
Hope this Helps. Run all together or replace the table variable with a temptable.
Sample Data:
IF OBJECT_ID(N'tempdb..#table') > 0
BEGIN
DROP TABLE #table
END
DECLARE #table TABLE(ATTRIBUTELVAUE VARCHAR(MAX))
INSERT INTO #table
SELECT
'AFN
ALL
DZD
USD
EUR
AOA
XCD
XCD
ARS'
INSERT INTO #table
SELECT
'Afghanistan
Albania
Algeria
American Samoa
Andorra
Angola
Anguilla
Antigua and Barbuda
Argentina'
INSERT INTO #table
SELECT
'AF
AL
DZ
AS
AD
AO
AI
AG
AR'
Query:
IF OBJECT_ID(N'tempdb..#TEMP') > 0
BEGIN
DROP TABLE #TEMP
END
DECLARE #StartLoop INT
DECLARE #EndLoop INT
DECLARE #Code TABLE (ID INT IDENTITY(1, 1),
Code VARCHAR(250))
DECLARE #Name TABLE (ID INT IDENTITY(1, 1),
Name VARCHAR(250))
DECLARE #Symbol TABLE (ID INT IDENTITY(1, 1),
Symbol VARCHAR(250))
SELECT ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) AS ID,
*
INTO #Temp
FROM #table
SELECT #StartLoop = MIN(ID),
#EndLoop = MAX(ID)
FROM #Temp
WHILE #StartLoop <= #EndLoop
BEGIN
DECLARE #WorkingString VARCHAR(MAX)
SELECT #WorkingString = ATTRIBUTELVAUE + CHAR(10) + ' '
FROM #Temp
WHERE ID = #StartLoop
--print #WorkingString
WHILE CHARINDEX(CHAR(10), #WorkingString) > 0
BEGIN
DECLARE #SearchCharacter INT
DECLARE #WorkingStringLength INT
DECLARE #TempStringLength INT
DECLARE #TempString VARCHAR(MAX)
SET #WorkingStringLength = LEN(#WorkingString)
SET #SearchCharacter = CHARINDEX(CHAR(10), #WorkingString)
SET #TempString = SUBSTRING(#WorkingString, 1, #SearchCharacter - 1)
SET #TempStringLength = LEN(#TempString)
SET #WorkingString = SUBSTRING(#WorkingString, #SearchCharacter + 1, #WorkingStringLength)
SET #TempString = REPLACE(#TempString, CHAR(13), '')
IF #StartLoop = 1
BEGIN
INSERT INTO #Code
SELECT #TempString
END
IF #StartLoop = 2
BEGIN
INSERT INTO #Name
SELECT #TempString
END
IF #StartLoop = 3
BEGIN
INSERT INTO #Symbol
SELECT #TempString
END
END
SET #StartLoop = #StartLoop + 1
END
SELECT Code,
Name,
Symbol
FROM #Code AS c
JOIN #Name AS n
ON c.ID = n.ID
JOIN #Symbol AS s
ON s.ID = n.ID
Cleanup:
IF OBJECT_ID(N'tempdb..#TEMP') > 0
BEGIN
DROP TABLE #TEMP
END
IF OBJECT_ID(N'tempdb..#table') > 0
BEGIN
DROP TABLE #table
END
Because I needed a view, this ended up being my solution:
CREATE FUNCTION [dbo].[CurrencyTableGenerator]()
RETURNS
#CurrencyTable TABLE(
Code NVARCHAR(250)
,Name NVARCHAR(250)
,Symbol NVARCHAR(250)
)
AS
BEGIN
DECLARE #xml1 XML
DECLARE #xml2 XML
DECLARE #xml3 XML
DECLARE #C1 NVARCHAR(250)
DECLARE #C2 NVARCHAR(250)
DECLARE #c3 NVARCHAR(250)
SET #c1 = (SELECT ...)
SET #c2 = (SELECT ...)
SET #c3 = (SELECT ...)
SET #xml1 = N'<root><r>' + REPLACE(#c1, CHAR(10), '</r><r>') + '</r></root>';
SET #xml2 = N'<root><r>' + REPLACE(#c2, CHAR(10), '</r><r>') + '</r></root>';
SET #xml3 = N'<root><r>' + REPLACE(#c3, CHAR(10), '</r><r>') + '</r></root>';
INSERT INTO #CurrencyTable
SELECT Code.Code, Name.Name, Symbol.Symbol
FROM
(SELECT ROW_NUMBER() OVER (ORDER BY ##ROWCOUNT) AS ck,
c.value('.', 'VARCHAR(250)') AS [Code]
FROM #xml1.nodes('//root/r') AS a(c)) AS Code
INNER JOIN
(SELECT ROW_NUMBER() OVER (ORDER BY ##ROWCOUNT) AS nk,
n.value('.', 'VARCHAR(250)') AS [Name]
FROM #xml2.nodes('//root/r') AS a(n)) AS Name ON Code.ck = Name.nk
INNER JOIN
(SELECT ROW_NUMBER() OVER (ORDER BY ##ROWCOUNT) AS sk,
s.value('.', 'VARCHAR(250)') AS [Symbol]
FROM #xml3.nodes('//root/r') AS a(s)) AS Symbol ON Symbol.sk = Name.nk
RETURN
END
GO
CREATE VIEW [dbo].[CurrencyView]
AS
SELECT * FROM [dbo].[CurrencyTableGenerator]()
GO
Thanks to RThomas for the function.
I need to summarize numbers like
CREATE TABLE #t(num int);
INSERT #t
SELECT 10001 UNION ALL
SELECT 10002 UNION ALL
SELECT 10003 UNION ALL
SELECT 10004 UNION ALL
SELECT 10005 UNION ALL
SELECT 10006 UNION ALL
SELECT 10007 UNION ALL
SELECT 10008 UNION ALL
SELECT 10009 UNION ALL
SELECT 10010 UNION ALL
SELECT 10020 UNION ALL
SELECT 10030 UNION ALL
SELECT 10040 UNION ALL
SELECT 10041 UNION ALL
SELECT 10042 UNION ALL
SELECT 10043 UNION ALL
SELECT 10050 UNION ALL
SELECT 10060 UNION ALL
SELECT 10070 UNION ALL
SELECT 10075 UNION ALL
SELECT 10076 UNION ALL
SELECT 10077;
--DROP TABLE #T;
to a simpler form in such a way that result would be.
10001-10010, 10020, 10030, 10040-10043, 10050, 10060, 10070, 10075-10077
Any help would be highly appreciated.
Try this:
WITH CTE1 AS
(
SELECT *, num - ROW_NUMBER() OVER(ORDER BY num) Corr
FROM #t
), CTE2 AS
(
SELECT MIN(num) MinNum, MAX(num) MaxNum, Corr
FROM CTE1
GROUP BY Corr
)
SELECT CAST(MinNum AS VARCHAR) +
CASE WHEN MaxNum != MinNum THEN ' - ' + CAST(MaxNum AS VARCHAR) ELSE '' END Res
FROM CTE2
DECLARE #Result VARCHAR(MAX);
WITH q AS (
SELECT
Num,
Num - (ROW_NUMBER() OVER (ORDER BY Num)) AS RowNumber
FROM
#t
)
SELECT
#Result = ISNULL(#Result + ',', '') +
CASE WHEN MIN(Num) != MAX(Num)
THEN CAST(MIN(Num) AS VARCHAR) + '-' + CAST(MAX(Num) AS VARCHAR)
ELSE CAST(MIN(Num) AS VARCHAR)
END
FROM q
GROUP BY RowNumber
PRINT #Result
-- Or... SELECT #Result.. whichever.
Try a cursor.
Run your script to create a table, then this
DECLARE cur CURSOR FOR
SELECT num FROM #t
OPEN cur
DECLARE #nm INT;
DECLARE #start INT;
DECLARE #prev INT;
DECLARE #retVal VARCHAR(MAX);
SET #retVal = '';
FETCH NEXT FROM cur INTO #nm
SET #prev = NULL;
SET #start = NULL;
WHILE (##fetch_status = 0)
BEGIN
IF (#prev IS NOT NULL)
BEGIN
IF (#prev = #nm - 1)
BEGIN
SET #prev = #nm;
END
ELSE
BEGIN
IF (#start = #prev)
SET #retVal = #retVal + CAST(#start AS VARCHAR) + ', '
ELSE
SET #retVal = #retVal + CAST(#start AS VARCHAR) + ' - ' + CAST(#prev AS VARCHAR) + ', '
SET #prev = #nm;
SET #start = #nm;
END
END
ELSE
BEGIN
SET #prev = #nm;
SET #start = #nm;
END
--PRINT(#nm)
FETCH NEXT FROM cur INTO #nm
END
CLOSE cur
DEALLOCATE cur
IF (#start = #prev)
SET #retVal = #retVal + CAST(#start AS VARCHAR) + ', '
ELSE
SET #retVal = #retVal + CAST(#start AS VARCHAR) + ' - ' + CAST(#prev AS VARCHAR) + ', '
IF (LEN(#retVal) > 1)
SET #retVal = SUBSTRING(#retVal, 1, LEN(#retVal) - 1)
PRINT(#retVal)