How To Convert Nvarchar Datatype To Float
May 16, 2008Hi,
how to convert nvarchar datatype to float?
Regards
Prashant
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Convert A Binary Float To FLOAT Datatype
Apr 9, 2007I 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
Convert Float To Nvarchar
Feb 15, 2008I 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 RelatedModify Nvarchar Datatype To Datatime Datatype
Mar 14, 2008Hi,
I imported a table from Accees to SQL 7 with data in it.
I need to modify one of the datatype columns to "datetime" from nvarchar.
I tried to convert it manually, in SQL Server Enterprise Manager tool, but it gave me an error.
I also tried, creating another column "DATE2-datatype:datetime" and updating the column with the old one.
UPDATE users SET DATE2 = DATE.. But it also faild,..
How can I modify the column?
Thank you.
Problem Converting Float Into Nvarchar
Mar 21, 2006I have a problem converting a float filed into nvarchar.
select cast(sold as varchar(50))
where sold=431597.15 results in 431597 and is ignoring always my decimals.
Do you have any idea how to fix this?
ty
Text Datatype Vs Nvarchar Datatype
Feb 25, 2008
Hi guys..
i have so doubts in my mind and that i want to discuss with you guys... Can i use more then 5/6 fields in a table with datatype of Text as u know Text can store maximu data... ? acutally i am trying to store a very long strings values into the all fields. it's just popup into my mind that might be table structer would not able to store that my amount of data when u use more then 5/6 text datatypes...
and another thing... is which one is better to use as data type "Text" or "varchar(max)"... ?
if any article to read more about these thing,, can you refere to me...
Thanks and looking forward.-MALIK
Can Anyone Help With With Datatype Float
Aug 30, 2007I have some engineering data in my table and the db designer is representing it with a float datatype. Here's what is happening. If I query on a record based on id num and get a row and put it in text boxes in my Windows App, min_riv_hd_dia (the float) is 0.026<14 zeroes>2. If I try to query and get that same record again but this time based on id num and min_riv_hd_dia equal to 0.026<14 zeroes>2, I get no row found. If I just do a select on this row based on id number, sql server displays it as 0.026. But if I query with 0.026 as my value, still the row is not found. If I query min_riv_hd_dia > 0.026, the record is found.
So my question is, how can I tell the exact value that must be input in my search criteria in order to find this row?
Thank you so much if you can help!
How To Format Float Datatype?
Apr 5, 2000For example, I have a float datatype field with a value of .2501
I select using ROUND(Field,3) and get .25 as a result, but what I need to display is .250 (three decimal places.) How can this be done?
Thanks,
Paul
Sum Float Datatype Column
Feb 12, 2014I'm using this query to sum the values. The cost column is a float datatype and what could I differently do here to sum the cost. I'm unable to sum the cost.
Also is there any way I change the datatype to int for Cost column without losing the data.
select ID, MAX(Date) Date, SUM(Cost) Cost, MAX(Funding) Funding from Application
group by ID
Transact SQL :: Error Converting Data Type Nvarchar To Float
Sep 24, 2015In the following code I want to compare 2 values: AccessVal and SQLVal. The values are stored as nvarchars, so I'm isolating the numeric values in a subquery. Notice I'm only selecting 1 row. The commented line, where I compare the values, is throwing the error.
SELECT QA_AutoID, AccessVal, SQLVal
,ROUND(ABS(CONVERT(float, AccessVal,1)),0) as AccessFloat
,ROUND(ABS(CONVERT(float, SQLVal,1)),0) as SQLFloat
FROM QA
WHERE QA_AutoID in (
SELECT TOP 1 QA_AutoID
FROM QA
WHERE ISNUMERIC(SQLVal) = 1 AND ISNUMERIC(AccessVal) = 1
)
--AND ROUND(ABS(CONVERT(float, AccessVal,1)),0) <> ROUND(ABS(CONVERT(float, SQLVal,1)),0)
ORDER BY ROUND(ABS(CONVERT(float, AccessVal,1)),0) DESC
,ROUND(ABS(CONVERT(float, SQLVal,1)),0) DESC
Here is the output with the comparison commented out...
Here's what I get with the comparison line activated:
I've tried converting to numeric, int and bigint instead of float. I've tried CAST instead of CONVERT. Nothing works.
What DataType Is Best ... Float, Double Or Decimal?
Sep 25, 2006
I am using sql express 2005 and sql server 2005 with C# 2.0.
I am a bit confused about which data type i should be using for several fields.
Right now I am declaring all of my fields in sql server as float for everything except for money fields which are using money.
When loaded into C# these fields are converted to double and decimal because C# does not have a float datatype.
Should I be using Decimal or Double for everything instead?
Here are a few examples
QtyInvoiced (float) - holds the number of items invoice
possible values look like this 1.0, 1.25 or 1.5
PercentDiscount (float) - holds a percentage
possible values look like this
10.25, 20.50, 50.00
I appreciate the help.
Wrong Values Stored For Datatype Float
Aug 3, 2006In SQL Server for a field of datatype float(8),
if i insert a value 2.62 , it saves it as 2.6200000000000001
like so for other values also.
But in frontend i can see the right values.
Could any of you help me in fixing up this issue?
Thanks in advance.
~ chaitanya
Convert Char Datatype To Datetime Datatype
Sep 17, 2003Database is SQL Server 2000
I have a field in a table that stores date of birth. The field's datatype is char(6) and looks like this: 091703 (mmddyy). I want to convert this value to a datetime datatype.
What is the syntax to convert char(6) to datetime?
Thank you in advance.
Is It Possible To Change The Datatype In A Excel File From The Float To Varchar
Sep 10, 2007Hi,
I have a excel file and i am trying to import zip codes to the database... but the some of the zip codes start with 06902 but the excel file treats them as float but i want to treat them as varchar...
How can i do it.
Regards
Karen
Wrong Values Stored In A Field Of Datatype Float
Aug 3, 2006Hi,
When i try to insert a value in to a field of datatype float(8), it is storing the wrong values(approximate values).
For example, if i try to insert 2.62 , it takes it as 2.6200000000000001
But i can see the correct values displayed in the frontend.
Heard that there is a fix available for this issue.
Could any of you help me in getting the details about that fix?
Thanks in advance.
~ Chaitanya
SQL Server 2008 :: Difference Between Money And (Float Or Decimal) Datatype
Jan 16, 2013What is the difference between Money and (Float or Decimal) Datatype. If we use Float or Decimal instead of Money, will we loose any functions..?
View 4 Replies View RelatedWhat Is The ADO DataType For NVarchAR(max)
Mar 21, 2006I can't seem to get nvarchar(max) to work with ADO 2.8 using sql native client.
I am creating a stored procedure and every time i attempt to add a parameter to the command object of type nVarChar(max) I receive the error
"Parameter object is improperly defined"
here is the code to add the parameter
cmd.Parameters.Append cmd.createparameter(@piComments,adLongVarWChar,adparaminput,,me.comments)
adLongVarWChar is the ado data type i am using to map to the new nVarChar(max) but it does not appear to be working.
Is this supported in ADO? I am using the sql native client connection to connect to the database as follows.
pubStrConnectionString = "Provider=SQLNCLI;" _
& "Server=.sqlExpress;" _
& "Database=MyDBName;" _
& "Integrated Security=SSPI;" _
& "DataTypeCompatibility=80;" _
& "MARS Connection=True;"
thanks
Problem Inserting Sql Query Into Database Float Datatype Field Using SQL Transaction
Aug 22, 2006I have this problem of inserting my query into database field. My code is as of below.
The @AVERAGESCORE parameter is derived from
Dim averagescore As Single = (122 * 1 + 159 * 2 + 18 * 3 + 3 * 4 + 0 * 5) / (122 + 159 + 18 + 3 + 0)
and the value returned is (averagescore.toString("0.00"))
However, I have error inserting the averagescore variable into a field of datatype float during the transaction. I have no problems when using non transactional sql insert methods. What could be the problem?
Try
Dim i As Integer
For i = 0 To arraySql.Count - 1
myCommand = New SqlCommand
Dim consolidatedobjitem As ConsolidatedObjItem = arraySql(i)
myCommand.CommandText = sqlStr
myCommand.Connection = myConnection
myCommand.Transaction = myTrans
With myCommand.Parameters
.Add(New SqlParameter("@AVERAGESCORE", consolidatedobjitem.getaveragescore))
End With
myCommand.ExecuteNonQuery()
Next
myTrans.Commit()
myConnection.Close()
Catch ex As Exception
Console.Write(ex.Message)
myTrans.Rollback()
myConnection.Close()
End Try
Convert Int To Float
Jun 21, 2007Hi,
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
Error With Using Nvarchar Datatype
Sep 10, 2007Hi, I have created a database using VWD to keep values of urls and have structured it as...
Prefix (http://, network name), address(www.name.com), and name (name of address), the address field has been defined as a nvarchar(MAX).
Most of the addresses updated into the address field work, except something like: www.java-scripts.net/javascripts/Image-Rollover-Script.phtml.
I get this error:
Cannot open user default database. Login failed.Login failed for user 'NETWORKNAMEASPNET'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: Cannot open user default database. Login failed.Login failed for user 'NETWORKNAMEASPNET'.Source Error:
Line 1176: if (((this.Adapter.InsertCommand.Connection.State & System.Data.ConnectionState.Open)
Line 1177: != System.Data.ConnectionState.Open)) {
Line 1178: this.Adapter.InsertCommand.Connection.Open();
Line 1179: }
Line 1180: try {
I can insert something like www.google.com into the addresses field without any errors. Any ideas why?If it is a nvarchar type it should be able to except all sorts of characters??
Datatype Nvarchar(max) Not Accessible
Mar 20, 2007Hi,
trying to input
create table T (c1 nvarchar(max));
in MS SQL Server Manangement Studio Express results in an error :
Fehler beim Analysieren der Abfrage. [ Token line number = 1,Token line offset = 30,Token in error = max ]
create table T (c1 nvarchar(4000));
is processed w/o errors.
I´ve installed SQL Server 2005 Express Ed. SP2
Microsoft SQL Server Management Studio Express 9.00.3042.00
Microsoft Data Access Components (MDAC) 2000.085.1117.00 (xpsp_sp2_rtm.040803-2158)
Microsoft MSXML 2.6 3.0 4.0 5.0 6.0
Microsoft .NET Framework 2.0.50727.42
Betriebssystem 5.1.2600
Any ideas?
Thanks in advance
Werner
Convert Float To Char
May 23, 2008hi, 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
Convert Float To Varchar(20)
Apr 11, 2006I 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?
Convert Float To Varchar
Jun 26, 2007Hi -
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
How To Convert From Ntext To Float?
Jul 23, 2005Hello,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 RelatedConvert Float To Char
Aug 26, 2005Select 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 RelatedConvert Varchar To Float?
Mar 7, 2008Is 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,
Converting From Nvarchar To Money Datatype
May 15, 2005Hi there,I have a table named Action. This table has a column InPrice with datatypenvarchar(12). I want to change its datatype from nvarchar(12) to money. Ibrowsed through the values and removed any dots. Th column now has onlynumeric values (and commas for decimal values such as 105,8). When I try tochange the datatype from nvarchar to money, following mesage is displayed:ADO error: Cannot convert a char value to money. The char value hasincorrect syntax.How can I solve this problem? I cannot figure out which values are causingthis error.Thanks in advance,Burak
View 4 Replies View RelatedNVARCHAR Vs VARCHAR Datatype And Performance
Aug 20, 2001We have few stored procedures that use nvarchar datatype, this was not issue on SQL server 7.0 but in 2000 becomes a big issue.
For example query that runs for 3 minutes in SQL server 2000 by replacing NVARCHAR to VARCHAR the same query runs for 2 seconds.
The biggest challenge that I have deals with tables and user-defined datatypes of NVARCHAR that has been bounded to the table.
How can I alter those without data corruption?
How To Convert Float To Varchar Or String..
Feb 12, 2007I'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).....
???
Convert Float To Numeric Error..... HELP!
Jan 23, 2002I'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
Convert Varchar Or Char To Float
Jan 4, 2006Hello,
Is there a way to convert varchar or char to float?
Thank you
Convert Varchar To Float / Decimal?
Jan 10, 2012I 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.