Unsigned 64-bit Value In T-SQL?
Mar 7, 2006
I need to compute a BIGINT value in a SPROC that I'm writing. An intermediate value of the calculation is an unsigned value greater than (2^63-1) which I gather is why my SPROC is producing an arithmetic overflow error. I have a couple of choices as I see it:
1. Change the algorithm so that I don't have such large intermediate values (which would require me to add conditional statement which would slow down the SPROC and, therefore, I don't want to do).
2. Use the CLR integration with SQL feature to write my SPROC in C#.
My question is: Will 2. work or will the C# SPROC also produce an overflow once it is executed by the SQL Server?
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Jul 26, 1999
What is the equivalent for Unsigned int datatype in SQL 7?
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Jan 17, 2005
In MySQL you can define a unsigned integer as uint
But MS don't allow this. Only as int.
How can I define a column/field as a unsigned int ?
CREATE TABLE StringTable (
NDX uint IDENTITY(1,1),
MID varchar(81),
TableTXT varchar(65),
TableNDX uint,
TXT1 varchar(129),
TXT2 varchar(129),
UNCDateTime datetime,
Data image)
-1 42000 2715 [Microsoft][ODBC SQL Server Driver][SQL Server]Column or
parameter #1: Cannot find data type uint.
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Oct 4, 2006
The documentation seems to suggest that I can store either a signed or unsigned value in bigint. If I want to store an unsigned value how do I go about it?
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Aug 6, 2007
How can I set an attribute of unsigned zerofill in SQL? Like for example, there is an option in MySQL phpmyadmin to set the attribute of a specific column to unsigned zerofill, it will be based on the length of the integer. For example, the lenght of my int is 5, so if i'll set the attribute of the column to unsigned zerofill, the value that will be auto incremented will have zeroes before that actual value, for example000010000200003....00010and so on and so forth...But, how can i do this in SQL? I'm using MS SQL Server Management Studio Express, but I can't find the field attributes to set it to unsigned zerofill.. I hope somebody will reply in this post.. :(
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Aug 1, 2004
I need to stored lots of unsigned 32-bit values. (I'm actually storing IPv4 addresses). These values will frequently exceed 2^31 but never exceed 2^32
My options are:
Use bigint. This is undesirable since this wastes 32-bits of space for every value.
Use int and use the negative value range to get full 32-bits worth of data. In C, it is easy and fast to cast a signed -1 to an unsigned 2^32-1. In SQL, it will be more expensive: Must cast to 64-bit and if val < 0 then val = 2^32 + val.
Is there a better alternative?
Is there a fast (binary) way to cast a value > 2^31 to a negative signed value?
DECLARE @value BIGINT
SET @value = 3000000000
SELECT CONVERT(INT, @value) -- causes error
SELECT CAST(@value AS INT) -- causes error
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Mar 11, 2008
I have an Excel spreadsheet that I eventually land into my staging table. In between, I'm attempting to get a date code from the Date table. I'm using a Lookup Transformation Editor and mapping the fiscal week of year and fiscal year name. I know the fiscal year name is fine. When I have both the fiscal year name and the fiscal week of year, the package fails on the lookup step. In a data conversion, I convert the fiscal week of year to a single byte unsigned integer. (In the Date table, the fiscal week of year is a tinyint.) I'm not sure what I'm doing wrong?
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