how to convert float to timestamp in single select query..for exp. i have float as 1.251152515236 ,i want to convert this to datetime and from datetime to timestamp... i.e. 26:11:00
View 6 RepliesHow to convert float to timestamp in single select query
E.g., i have float as 1.251152515236 ,
I want to convert this to datetime and from datetime to timestamp... i.e. 26:11:00
I can't take full credit for this. I want to share this with Jeff Moden who did the important research for this calculation here.
All I did was just adapting some old code according to the mantissa finding Jeff made and optimized it a little
Some test codeDECLARE@SomeNumber FLOAT,
@BinFloat BINARY(8)
SELECT@SomeNumber = -185.6125,
@BinFloat = CAST(@SomeNumber AS BINARY(8))
SELECT@SomeNumber AS [Original],
CAST(@SomeNumber AS BINARY(8)) AS [Binary],
dbo.fnBinaryFloat2Float(CAST(@SomeNumber AS BINARY(8))) AS [Converted],
@SomeNumber - dbo.fnBinaryFloat2Float(CAST(@SomeNumber AS BINARY(8))) AS [Error]
And here is the code for the function.CREATE FUNCTION dbo.fnBinaryFloat2Float
(
@BinaryFloat BINARY(8)
)
RETURNS FLOAT
AS
BEGIN
DECLARE@Part TINYINT,
@PartValue TINYINT,
@Mask TINYINT,
@Mantissa FLOAT,
@Exponent SMALLINT,
@Bit TINYINT,
@Ln2 FLOAT,
@BigValue BIGINT
SELECT@Part = 1,
@Mantissa = 1,
@Bit = 1,
@Ln2 = LOG(2),
@BigValue = CAST(@BinaryFloat AS BIGINT),
@Exponent = (@BigValue & 0x7ff0000000000000) / EXP(52 * @Ln2)
WHILE @Part <= 8
BEGIN
SELECT@Part = @Part + 1,
@PartValue = CAST(SUBSTRING(@BinaryFloat, @Part, 1) AS TINYINT),
@Mask =CASE WHEN @Part = 2 THEN 8 ELSE 128 END
WHILE @Mask > 0
BEGIN
IF @PartValue & @Mask > 0
SET @Mantissa = @Mantissa + EXP(-@Bit * @Ln2)
SELECT@Bit = @Bit + 1,
@Mask = @Mask / 2
END
END
RETURNSIGN(@BigValue) * @Mantissa * POWER(CAST(2 AS FLOAT), @Exponent - 1023)
END
Thanks again Jeff!
Peter Larsson
Helsingborg, Sweden
Hi,
why does converting integer to float take so long? Its a column with about 5 Million rows.
I want to avoid cast(inumber1 as float) / cast(inmuber2 as float), thats why converting them. Queries should be a bit faster after that.. hope so :)
Thanks a lot
hi, how can I convert a float to a char so I can do:
'£' + convert(char,amount) AS [money]
When I do the above the number is like 1.07848e+006
rather than 1078480
thans for any help.
jamie
I have a sp that receive a rango of float values,and I need to convert this values to a varchar(20).
I am trying the next but I got a strange result.
@intNoTarjIni = 121456790
set @strTarjeta=cast(@intNoTarjIni as varchar(20))
returns: 1.21457e+008
set @strTarjeta=convert( varchar(20),@intNoTarjIni)
returns:1.21457e+008
How can I convert sucessfully a float to varchar?
Hi -
My field TDMergerVotePercent is defined as a float field. I want it to return 'NA' when the value is -1 but I'm getting the error message
'Error converting data type varchar to float' in my aspx page. Is there where the CAST function can be used? Thanks
CASE
WHEN TDMergerVotePercent = -1 THEN 'NA'
WHEN TDMergerVotePercent IS NULL THEN ''
ELSE TDMergerVotePercent
END AS TDMergerVotePercent
I have a data type float with a value of 10000487930 that I'm trying to insert into a data type nvarchar and am getting the result of '1.00005e+010'. I've tried cast(field as nvarchar) however this is not working. What might fix this? I cannot change the insert table data type.
View 3 Replies View RelatedHello,I would like to convert a field from ntext field found in one databasetable to float field found in another database table. The reason why Iwant to do this is a long one.I have tried the following and playing around with the following:declare @valuePointer varbinary(16)<Row cursor logic to initialize @valuePointer to be a pointer to thesource ntext field>update TargetFloatTable set TargetFloatTable.TargetFloatValue =CAST(CAST(@valuePointer AS nvarchar) AS float)where TargetFloatTable.Id = @Idbut is not working for me.Hoping someone out there can help.Thanks,Cally
View 5 Replies View RelatedSelect Cast('100.1234' as float)give me the result 100.1234Now when I convert it back to char I want exactly 100.1234Select Convert(char(100),Cast('100.1234' as float))Gives me 100.123 (Here I was expecting 100.1234)When I doSelect STR(Cast('100.1234' as float),25,4)I get back the result as 100.1234However here I am not sure how many digits do I have after the decimalpoint. If I put some value likeSelect STR(Cast('100.1234' as float),25,8)I get 0's appended to it, which is again not desired.Thanks in advance,Jai
View 4 Replies View RelatedIs this possible? I'm trying to user a lookup task and the data I want to compare is a varchar to float. How can I do this? I tried using the data conversion task and it didn't work and also tried cast and convert. Is this even possible or is there a way around it?
thanks,
I've three columns:
Length Width Height
1.5 2.5 10
2 3.7 19
in Query I want to display Like 1.5 X 2.5 X 10 (Length, Width, Height).....
???
I'm running the following statement...
The column is currently float (8). Need to convert to numeric. I've tried cast, convert. no go for either.
Any help on this would be greatly appreciated.
..... select ... convert(numeric(38,0), colname)
TIA,
Jeremy
Hello,
Is there a way to convert varchar or char to float?
Thank you
I have a field in my database that is stored as varchar. The values are usually contain a decimal, and should have really been a float or decimal. In order for me to do analytics in my BI environment, I need to convert this to a float or decimal.
eg of values.
10.00
20.00
0.00
15.00
or could be missing when I use cast(value as float) or cast(value as decimal(9,2)) or convert(float, value) I get an error
Msg 8114, Level 16, State 5, Line 2
Error converting data type varchar to numeric.
Hi,
Can you guys help me out?
I m trying to sum up some varchar-typed field. I need to convert it to float before doing the summing up so I m using "Cast".
I do get the answer but its not the correct figure. My SQL statement is as follow:
SELECT Sum((Cast(Qty1 as float)) + (Cast(Qty2 as float))) as intAnswer FROM TableName
Please help.
What actually happens when I convert date to float? Select convert(float,getdate(),112)
View 1 Replies View RelatedI have the following CASE statement:
SELECT CASE WHEN [TBL_whole_rock_geochem].au = 0 THEN '<' + [TBL_ActLab_codes].[Au] ELSE [TBL_whole_rock_geochem].[Au] END AS [Au det]
It errors on the highlighted code.
Error converting data type nvarchar to float
the code should return :
<0.5
<1
I have tried '<' + ISNUMERIC([TBL_ActLab_codes].[Au]) but received this error
Conversion failed when converting the varchar value '<' to data type int.
How I can concatenate the < with a float value?
Hi,
how to convert nvarchar datatype to float?
Regards
Prashant
Hello I have some problems with converting varbinary to float in T-SQLstored procedure. In my C# application i have table of structures withdouble type fields. Size of this table is variant. I have to send thistable to SP. Because of performance i want to send it only once andwhole. So I have to cut this varbinary blob in my Stored procedure toreceive structure field values. But I have problems with double fields- conversion from varbinary to float in T-SQL is not allowed. Pleasehalp me - thx for any advise.Maciej
View 1 Replies View RelatedI have a column type of float and How to convert it show like this
default value =39260.80 MY db use this ',' seperator instead of '.'
wanna convert 39,260
This code is working if using '.' seperator
SELECT parsename(convert(varchar,CAST(floor('39260.80') AS MONEY),1),2)
not work using ',' seperator
SELECT parsename(convert(varchar,CAST(floor('39260,80') AS MONEY),1),2)
I'm trying to move records from a SQL table with a float column to a DB2 database that has the column defined as Decimal (8,2) It keeps crashing saying it has a type mismatch problem. I tried changing my source command to pass in the column already converted and it still crashes on this. I also tried doing a data conversion task to do the conversion and I still get the same error. Any ideas?
View 3 Replies View RelatedI seem to always get the "Fun Stuff" to try and figure out. I have an entire table that was pumped out of Oracle. I even hate saying that word!
There are a couple columns that are Float data type, and they are storing phone numbers as a Float data type. I am not able to CAST these into anything that is legible.
This is one of the values that I made up that look like some of the others.
9.72732e+009
Hi there, I've a question regaarding datatype conversions... I can't convert the above mentioned datatype. I always get an error message that the conversion fails. Doesn't matter If convert or cast is used.
How would you convert the above mentioned variable into float???
Hi all,
I am developing an application for a big office which uses SQL Server 2000.
Apart from my database, on that server, there are two databases by other companies.
The administrator also has access to server but the client only wants him to backup the database.
I have two questions:
1) First of all (if it is possible) I would like to protect my own database from the other companies.
I don't want them to:
see the data in the tables (around 20 tables)
make changes to the stored procedures (more than 100 stored procedures)
be able to backup the database
2) The client will save sensitive data to the database (mainly currency amounts, salaries etc) which he wants to keep hidden.
I am using float type for these fields and I would like to make the data encrypted. I could do it for nvarchar fields but changing these float to nvarchar would be time consuming.
Thanks for your patience reading this!
Would really appreciate some help on any of these
Nicolas
Hi!
What correct statement should be to convert timestamp column to datetime.
I wrote:
select convert(datetime, update_date)
from table_name
and it doesn't work properly.
Thank you,
Elena
hi, good day, i would like to convert timstamp value into date with dateformat (yyyy-MM-dd) , how to i do that ?
i have try using convert method with code 20 and 21 , but it contain the time as well , i just need the date with no time and seconds include
thank you
I am new SQL Server, I have below Timestamp conversion running in Oracle how do I convert same in SQL Server
Default date - 01/01/1970
Application stores Date as bigint - 1326310811062
(TIMESTAMP('01/01/1970', '00:00:00') + (1326310811062 / 1000) SECONDS) AS CREATION
Hi
Is there a way in T-SQL (Server 2005) to convert unix timestamp to UTC
So want to do this:
1189481763.61 -> Tue, 11 Sep 2007 03:36:03 UTC(or any UTC format)
Thanks
Is it possible to convert a timestamp value to its associated datetime?
I know that the timestamp is not directly convertable to a datetime but does the database know at what time that timestamp was assigned?
Jacob
I have been given some data from a Mainframe (AS400?) which has some fields coded in Packed Decimal. I have been able to load the data into a SQL2005 database table, but I now need to convert the Packed Decimal data in the binary(6) field to the appropriate integer (or float) value.
The field contains values such as the following:-
0x20202020200C
0x202020022025
0x20202020DFFA
I don't know how to interpret these. Has anyone got a function that can do this for me?
I've read several articles online that explain how packed decimal works, but none tell me how to interpret the last of my three examples. Can you help?
Thanks!
can someone please supply some information to help with this??
I am moving data from db2 8.1 for windows. the dates in db2 are defined as timestamp. i want to convert these to sql server datetime format in sql server 2000 using dts and sql.
does anyone have examples or something??
any help would be greatly appreciated.
How can we convert form String to Database timestamp
UPDATE REGDEST_10
SET IS_ACTIVE = 0
WHERE expdate > GETDATE()
expdate is streing and getdate() is dbts