I want to convert a varchar to numeric, I looked aroud and found SELECT CAST. I tried to use it like this this:
SELECT CAST(`Elo` AS INT) FROM Table `Rankings`;
However, I get a syntax error. Is there anything wrong?
Remove the Table keyword from your query.
SELECT CAST(`Elo` AS INT) FROM `Rankings`;
Related
I have the query report for user but have some error message display:
Error converting data type nvarchar to bigint
only one message.
How to find which field is giving data type error in query? Anyone can give advice? Many thanks!
As you have not provided data, it looks like you have NVARCHAR datatype, which is not implicitly convertable to Bigint
SELECT CAST(N'287888' AS BIGINT) -- Success
SELECT CAST(N'ABC123' AS BIGINT) -- Failure
See which column is failing and accordingly fix it.
You can either only load the proper values:
SELECT * FROM Table WHERE TRY_CAST(ErrorField AS BIGINT) IS NOT NULL
Or, You can load them as NULL(provided the target column allows NULL)
SELECT TRY_CAST(ErrorField AS BIGINT) FROM Table
Why does the following T-SQL statement:
select CAST(COALESCE('3537601039',0) as bigint)
result in the following error when run against MS SQL Server 10?
The conversion of the varchar value '3537601039' overflowed an int
column.
Is there a "more correct" way to do this conversion of a varchar to a bigint that would avoid this problem when the number is within range of a bigint?
The first thing that is happening is that your string is trying to convert to a regular int to match the 0. Try this:
select CAST(COALESCE('3537601039','0') as bigint)
It appears that putting the unqualified zero in the coalesce is implying a conversion to a smaller int before it is explicitly recast to a bigint.
The following simple change to make it a coalesce of string values solves the problem:
select CAST(COALESCE('3537601039','0') as bigint)
Cast first, then do ISNULL
select ISNULL(CAST('3537601039' as bigint), 0)
select ISNULL(NULLIF(ISNULL(CAST('3537601039' as bigint), 0), 0), 1) + 3537601039
sql server firstly discovers isnull(string, numeric) and that numeric zero is by default int. So it tries to convert that string containing bigint to int. You were trying to cast to bigint too late.
another try:
select ISNULL('3537601039', 100000000000)
When I try to execute this stored procedure im getting this error"Database Connector Error: 'Implicit conversion from datatype 'CHAR' to 'INT' is not allowed. Use the CONVERT function to run this query" how come? how can I fix this? thanks
this is the query im using to execute the SP:
CREATE PROCEDURE TestProc2(#store char(4))
AS
BEGIN
SELECT * FROM stores WHERE stor_id=#store
END
exec TestProc2 #store = "7066"
sp_help stores
stor_id, char, 4
stor_name, varchar, 40
stor_address,varchar, 40
city, varchar, 20
state, char, 2
country, varchar, 12
postalcode, char, 10
payterms, varchar, 12
the column is set as char(4) so I don't think there is a mismatch with the query and data types
BTW I tried("7066") with single quotes, with double and without quotes, I still get the same sql error. please help
PS Im using sybase thanks! also below is a screenshot of the error.
any other info you guys need to help me? thanks
http://tinypic.com/r/2n24huq/8
It looks like the stor_id field in the stores table is an int. Change your stored procedure to accept an int instead of a char(4).
CREATE PROCEDURE TestProc2(#store int)
AS
BEGIN
SELECT * FROM stores WHERE stor_id=#store
END
When I try to get the sum of a column from a table I get the error Arithmetic overflow error converting expression to data type int because the resulting number is to big for an INT. So I tried to CAST to a BIGINT using the following
SELECT CAST(SUM(columnname) AS BIGINT) FROM tablename
This gives me the same error. Any ideas what i'm doing wrong?
Try converting it before summing. eg.
SELECT SUM(CONVERT(bigint, columnname)) FROM tablename
or
SELECT SUM(CAST(columnname AS BIGINT)) FROM tablename
How to convert a string to integer using SQL query on SQL Server 2005?
You could use CAST or CONVERT:
SELECT CAST(MyVarcharCol AS INT) FROM Table
SELECT CONVERT(INT, MyVarcharCol) FROM Table
Starting with SQL Server 2012, you could use TRY_PARSE or TRY_CONVERT.
SELECT TRY_PARSE(MyVarcharCol as int)
SELECT TRY_CONVERT(int, MyVarcharCol)
Also be aware that when converting from numeric string ie '56.72' to INT you may come up against a SQL error.
Conversion failed when converting the varchar value '56.72' to data type int.
To get around this just do two converts as follows:
STRING -> NUMERIC -> INT
or
SELECT CAST(CAST (MyVarcharCol AS NUMERIC(19,4)) AS INT)
When copying data from TableA to TableB, the conversion is implicit, so you dont need the second convert (if you are happy rounding down to nearest INT):
INSERT INTO TableB (MyIntCol)
SELECT CAST(MyVarcharCol AS NUMERIC(19,4)) as [MyIntCol]
FROM TableA
Try this one, it worked for me in Athena:
cast(MyVarcharCol as integer)