I have variable called #prmclientcode which is nvarchar. The input to this variable can be a single client code or multiple client codes separated by comma. For e.g.
#prmclientcode='1'
or
#prmclientcode='1,2,3'.
I am comparing this variable to a client code column in of the tables. The data type of this column is numeric(6,0). I tried converting the variable data type like below
SNCA_CLIENT_CODE IN ('''+convert(numeric(6,0),#prmclientcode+''')) (The query is inside a dynamic sql).
But when I try executing this I get the error
Arithmetic overflow error converting nvarchar to data type numeric.
Can anyone please help me here!
Thanks!
You need to convert the numeric(6,0) column to nvarchar data type. You can use below scrip to convert it to nvarchar, before processing:
SNCA_CLIENT_CODE IN ('''+convert(cast( numeric(6,0) as nvarchar(max) ),#prmclientcode+'''))
Please try with the below code snippet.
DECLARE #ProductTotals TABLE
(
ProductID int
)
INSERT INTO #ProductTotals VALUES(1)
INSERT INTO #ProductTotals VALUES(11)
INSERT INTO #ProductTotals VALUES(3)
DECLARE #prmclientcode VARCHAR(MAX)='1'
SELECT * FROM #ProductTotals
SELECT * FROM #ProductTotals WHERE CHARINDEX(',' + CAST(ProductID AS VARCHAR(MAX)) + ',' , ',' + ISNULL(#prmclientcode,ProductID) + ',') > 0
Let me know if any concern.
use following code in order to separate your variable:
DECLARE
#T VARCHAR(100) = '1,2,3,23,342',
#I int = 1
;WITH x(I, num) AS (
SELECT 1, CHARINDEX(',',#T,#I)
UNION ALL
SELECT num+1,CHARINDEX(',',#T,num+1)
FROM x
WHERE num+1<LEN(#T)
AND num<>0
)
SELECT SUBSTRING(#T,I,CASE WHEN num=0 THEN LEN(#T)+1 ELSE num END -I)
FROM x
Use can use either table function or dynamic sql query, both options will work.
Let me know if you need more help
Related
I'm creating a grid that has two columns: Name and HotelId. The problem is that data for this grid should be sent with a single parameter of VARCHAR type and should look like this:
#Parameter = 'Name1:5;Name2:10;Name3:6'
As you can see, the parameter contains Name and a number that represents ID value and you can have multiple such entries, separated by ";" symbol.
My first idea was to write a query that creates a temp table that will have two columns and populate it with data from the parameter.
How could I achieve this? It seems like I need to split the parameter two times: by the ";" symbol for each row and then by ":" symbol for each column.
How should I approach this?
Also, if there is any other more appropriate solution, I'm open to suggestions.
First Drop the #temp table if Exists...
IF OBJECT_ID('tempdb..#temp', 'U') IS NOT NULL
/*Then it exists*/
DROP TABLE #temp
Then create #temp table
CREATE TABLE #temp (v1 VARCHAR(100))
Declare all the #Paramter....
DECLARE #Parameter VARCHAR(50)
SET #Parameter= 'Name1:5;Name2:10;Name3:6'
DECLARE #delimiter nvarchar(1)
SET #delimiter= N';';
Here, Inserting all #parameter value into #temp table using ';' separated..
INSERT INTO #temp(v1)
SELECT * FROM(
SELECT v1 = LTRIM(RTRIM(vals.node.value('(./text())[1]', 'nvarchar(4000)')))
FROM (
SELECT x = CAST('<root><data>' + REPLACE(#Parameter, #delimiter, '</data><data>') + '</data></root>' AS XML).query('.')
) v
CROSS APPLY x.nodes('/root/data') vals(node)
)abc
After inserting the value into #temp table..get all the value into ':' seprated...
select Left(v1, CHARINDEX(':', v1)-1) as Name , STUFF(v1, 1, CHARINDEX(':', v1), '') as HotelId FROM #temp
Then you will get this type of Output
I am inserting table A to table B. The problematic column looks like -$25.2. I first replaced the $ and tried insert. Got this error
Error converting data type nvarchar to float.
I then checked by
SELECT *
FROM B
WHERE ISNUMERIC([Col Name]) <> 1
and no results were returned.
This is odd. It is supposed to return something.
What should I check next?
I also tried something like
CAST(REPLACE([Col Name], '-$', '') AS FLOAT)
Try using this
DECLARE #Text nvarchar(100)
SET #Text = '-$1234.567'
SET #Text = Replace(#Text,'$', '')
Select CONVERT(float, #Text) AS ColumnValue
Select ABS(CONVERT(float, #Text)) AS ColumnValue
While the 'money' data type isn't great for doing calculations, in this scenario you can use it as an intermediary.
declare #a nvarchar(10)
set #a = '-$25.2'
select
#a,
cast(cast(#a as money) as float)
Only use this though if your data only goes to a max of 4 decimal places, otherwise you will lose precision in the conversion.
I'm curently storing a list of ids in a column as a CSV string value ('1;2;3').
I'd like to optimize with a better approach (I believe) which would use varbinary(max).
I'm looking for tsql functions
1 . That would merge side by side a set of integer rows into a varbinary(max)
2 . That would split the varbinary field into a set of int rows
Any tips appreciated, thanks
Solution is very questionable. I'd also suggest to normalize the data.
However, if you still want to store your data as VARBINARY, here is the solution:
CREATE FUNCTION dbo.fn_String_to_Varbinary(#Input VARCHAR(MAX))
RETURNS VARBINARY(MAX) AS
BEGIN
DECLARE #VB VARBINARY(MAX);
WITH CTE as (
SELECT CAST(CAST(LEFT(IT,CHARINDEX(';',IT)-1) AS INT) as VARBINARY(MAX)) as VB, RIGHT(IT,LEN(IT) - CHARINDEX(';',IT)) AS IT
FROM (VALUES (#Input)) as X(IT) union all
SELECT VB + CAST(CAST(LEFT(IT,CHARINDEX(';',IT)-1) AS INT) as VARBINARY(MAX)) as VB, RIGHT(IT,LEN(IT) - CHARINDEX(';',IT)) AS IT FROM CTE WHERE LEN(IT) > 1
)
SELECT TOP 1 #VB = VB FROM CTE
ORDER BY LEN(VB) DESC
RETURN #VB
END
GO
DECLARE #Input VARCHAR(MAX) = '421;1;2;3;5000;576;842;375;34654322;18;67;000001;1232142334;'
DECLARE #Position INT = 9
DECLARE #VB VARBINARY(MAX)
SELECT #VB = dbo.fn_String_to_Varbinary(#Input)
SELECT #VB, CAST(SUBSTRING(#VB,4*(#Position-1)+1,4) AS INT)
GO
The function converts string into VARBINARY and then script extracts 9th number from that VARBINARY value.
Do not run this function against a data set with million records and million numbers in each line.
I am stuck on converting a varchar column UserID to INT. I know, please don't ask why this UserID column was not created as INT initially, long story.
So I tried this, but it doesn't work. and give me an error:
select CAST(userID AS int) from audit
Error:
Conversion failed when converting the varchar value
'1581............................................................................................................................' to data type int.
I did select len(userID) from audit and it returns 128 characters, which are not spaces.
I tried to detect ASCII characters for those trailing after the ID number and ASCII value = 0.
I have also tried LTRIM, RTRIM, and replace char(0) with '', but does not work.
The only way it works when I tell the fixed number of character like this below, but UserID is not always 4 characters.
select CAST(LEFT(userID, 4) AS int) from audit
You could try updating the table to get rid of these characters:
UPDATE dbo.[audit]
SET UserID = REPLACE(UserID, CHAR(0), '')
WHERE CHARINDEX(CHAR(0), UserID) > 0;
But then you'll also need to fix whatever is putting this bad data into the table in the first place. In the meantime perhaps try:
SELECT CONVERT(INT, REPLACE(UserID, CHAR(0), ''))
FROM dbo.[audit];
But that is not a long term solution. Fix the data (and the data type while you're at it). If you can't fix the data type immediately, then you can quickly find the culprit by adding a check constraint:
ALTER TABLE dbo.[audit]
ADD CONSTRAINT do_not_allow_stupid_data
CHECK (CHARINDEX(CHAR(0), UserID) = 0);
EDIT
Ok, so that is definitely a 4-digit integer followed by six instances of CHAR(0). And the workaround I posted definitely works for me:
DECLARE #foo TABLE(UserID VARCHAR(32));
INSERT #foo SELECT 0x31353831000000000000;
-- this succeeds:
SELECT CONVERT(INT, REPLACE(UserID, CHAR(0), '')) FROM #foo;
-- this fails:
SELECT CONVERT(INT, UserID) FROM #foo;
Please confirm that this code on its own (well, the first SELECT, anyway) works for you. If it does then the error you are getting is from a different non-numeric character in a different row (and if it doesn't then perhaps you have a build where a particular bug hasn't been fixed). To try and narrow it down you can take random values from the following query and then loop through the characters:
SELECT UserID, CONVERT(VARBINARY(32), UserID)
FROM dbo.[audit]
WHERE UserID LIKE '%[^0-9]%';
So take a random row, and then paste the output into a query like this:
DECLARE #x VARCHAR(32), #i INT;
SET #x = CONVERT(VARCHAR(32), 0x...); -- paste the value here
SET #i = 1;
WHILE #i <= LEN(#x)
BEGIN
PRINT RTRIM(#i) + ' = ' + RTRIM(ASCII(SUBSTRING(#x, #i, 1)))
SET #i = #i + 1;
END
This may take some trial and error before you encounter a row that fails for some other reason than CHAR(0) - since you can't really filter out the rows that contain CHAR(0) because they could contain CHAR(0) and CHAR(something else). For all we know you have values in the table like:
SELECT '15' + CHAR(9) + '23' + CHAR(0);
...which also can't be converted to an integer, whether you've replaced CHAR(0) or not.
I know you don't want to hear it, but I am really glad this is painful for people, because now they have more war stories to push back when people make very poor decisions about data types.
This question has got 91,000 views so perhaps many people are looking for a more generic solution to the issue in the title "error converting varchar to INT"
If you are on SQL Server 2012+ one way of handling this invalid data is to use TRY_CAST
SELECT TRY_CAST (userID AS INT)
FROM audit
On previous versions you could use
SELECT CASE
WHEN ISNUMERIC(RTRIM(userID) + '.0e0') = 1
AND LEN(userID) <= 11
THEN CAST(userID AS INT)
END
FROM audit
Both return NULL if the value cannot be cast.
In the specific case that you have in your question with known bad values I would use the following however.
CAST(REPLACE(userID COLLATE Latin1_General_Bin, CHAR(0),'') AS INT)
Trying to replace the null character is often problematic except if using a binary collation.
This is more for someone Searching for a result, than the original post-er. This worked for me...
declare #value varchar(max) = 'sad';
select sum(cast(iif(isnumeric(#value) = 1, #value, 0) as bigint));
returns 0
declare #value varchar(max) = '3';
select sum(cast(iif(isnumeric(#value) = 1, #value, 0) as bigint));
returns 3
I would try triming the number to see what you get:
select len(rtrim(ltrim(userid))) from audit
if that return the correct value then just do:
select convert(int, rtrim(ltrim(userid))) from audit
if that doesn't return the correct value then I would do a replace to remove the empty space:
select convert(int, replace(userid, char(0), '')) from audit
This is how I solved the problem in my case:
First of all I made sure the column I need to convert to integer doesn't contain any spaces:
update data set col1 = TRIM(col1)
I also checked whether the column only contains numeric digits.
You can check it by:
select * from data where col1 like '%[^0-9]%' order by col1
If any nonnumeric values are present, you can save them to another table and remove them from the table you are working on.
select * into nonnumeric_data from data where col1 like '%[^0-9]%'
delete from data where col1 like '%[^0-9]%'
Problems with my data were the cases above. So after fixing them, I created a bigint variable and set the values of the varchar column to the integer column I created.
alter table data add int_col1 bigint
update data set int_col1 = CAST(col1 AS VARCHAR)
This worked for me, hope you find it useful as well.
I need to write a procedure where I have to sum an unknown column name.
The only information I have access to is the column position.
I am able to get the column name using the following:
SELECT #colName = (SELECT column_name FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='TABLENAME' AND ORDINAL_POSITION=#colNum)
I then have the following:
SELECT #sum = (SELECT SUM(#colName) FROM TABLENAME)
I then receive the following error:
Operand data type varchar is invalid for sum operator
I am confused about how to make this work. I have seen many posts on convert and cast, but I cannot cast to an float, numeric, etc because this is a name.
I would appreciate any help.
Thank you
This is not possible. You will have to assemble the SQL query and then execute it. Something like this:
SET #sqlquery = 'SELECT SUM(' + #colName + ') FROM TABLENAME'
EXECUTE ( #sqlquery )
Adjust accordingly.