Use Decimal Or Varbinary Data Type?
Jul 19, 2007
I need to store 256 bit hash (SHA-2 alogrithmn) in one of the table's
primary key. I would prefer to use numeric data type rather varchar
etc.
* Decimal datatype range is -10^38 +1 to 10^38 -1. I can split my 256
bit hash into two decimal(38, 0) type columns as composite key
* I can store the hash as varbinary. I never used it and don't have
much understanding in terms of query writing complexities and dealing
it through ADO (data type etc.)
It would be heavy OLTP type of systems with hash based primary key
used in joins for data retrieval as well.
Please provide your expert comments on this.
Regards
Anil
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Dec 8, 2013
I am creating a table on SQL Server. One of the columns in this new table contains whole integer as wells as decimal values (i.e. 4500 0.9876). I currently have this column defined as Decimal(12,4). This adds 4 digits after the decimal point to the whole integers. Is there a data type that will have the decimal point only for decimal values and no decimal point for the whole integers?
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Jul 24, 2006
Hello!
I would like to cast (convert) data type decimal(24,4) to
decimal(21,4). I could not do this using standard casting function
CAST(@variable as decimal(21,4)) or CONVERT(decimal(21,4),@variable)
because of the following error: "Arithmetic overflow error converting
numeric to data type numeric." Is that because of possible loss of the
value?
Thanks for giving me any advice,
Ziga
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Apr 16, 2008
Hi,
The table in SQL has column Availability Decimal (8,8)
Code in c# using sqlbulkcopy trying to insert values like 0.0000, 0.9999, 29.999 into the field Availability
we tried the datatype float , but it is converting values to scientific expressions€¦(eg: 8E-05) and the values displayed in reports are scientifc expressions which is not expected
we need to store values as is
Error:
base {System.SystemException} = {"The given value of type SqlDecimal from the data source cannot be converted to type decimal of the specified target column."}
"System.InvalidOperationException: The given value of type SqlDecimal from the data source cannot be converted to type decimal of the specified target column. ---> System.InvalidOperationException: The given value of type SqlDecimal from the data source cannot be converted to type decimal of the specified target column. ---> System.ArgumentException: Parameter value '1.0000' is out of range.
--- End of inner exception stack trace ---
at System.Data.SqlClient.SqlBulkCopy.ConvertValue(Object value, _SqlMetaData metadata)
--- End of inner exception stack trace ---
at System.Data.SqlClient.SqlBulkCopy.ConvertValue(Object value, _SqlMetaData metadata)
at System.Data.SqlClient.SqlBulkCopy.WriteToServerInternal()
at System.Data.SqlClient.SqlBulkCopy.WriteRowSourceToServer(Int32 columnCount)
at System.Data.SqlClient.SqlBulkCopy.WriteToServer(DataTable table, DataRowState rowState)
at System.Data.SqlClient.SqlBulkCopy.WriteToServer(DataTable table)
at MS.Internal.MS
COM.AggregateRealTimeDataToSQL.SqlHelper.InsertDataIntoAppServerAvailPerMinute(String data, String appName, Int32 dateID, Int32 timeID) in C:\VSTS\MXPS Shared Services\RealTimeMonitoring\AggregateRealTimeDataToSQL\SQLHelper.cs:line 269"
Code in C#
SqlBulkCopy bulkCopy = new SqlBulkCopy(sqlConnection, SqlBulkCopyOptions.Default);
DataRow dr;
DataTable dt = new DataTable();
DataColumn dc;
try
{
dc = dt.Columns.Add("Availability", typeof(decimal));
€¦.
dr["Availability"] = Convert.ToDecimal(s[2]); ------ I tried SqlDecimal
€¦€¦€¦.
}
bulkCopy.DestinationTableName = "dbo.[Tbl_Fact_App_Server_AvailPerMinute]";
bulkCopy.WriteToServer(dt);
thx
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Sep 11, 2006
I'm unable to create a field with the type varbinary(max). When I try doing this with Management Studio, it tells me that the maximum length is 8000 bytes. I've also tried creating the field with DDL as shown below, but that doesn't work either. If I create the varbinary field with a length of 8000 or less, it works fine. Is there some trick to using varbinary(max)?
Thank you.
create table images (filename nvarchar(250) primary key,photo varbinary(max))
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Sep 13, 2000
I have decimal(6,2) defined in a column. If I insert 90.6, it will display 90.60 , 0 becomes .00 .
Is there a way or configuration change so the 0's will on the last will not be showing. And
the 0 will display as 0 not .00?
Thanks in advance.
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Aug 31, 2004
Hi There,
I'm using C# to get a value for a DOUBLE precision variable, called "Length", from a textBox using the following line:
Length = Convert.ToDouble( txtLength.Text )
I'm also using the following lines to prepare my stored procedure call:
arParms[9] = new SqlParameter("@Length", SqlDbType.Decimal, 5);
arParms[9].Value = record.Length;
My stored procedure has the following parameter definition:
@Length decimal(9,3)
My problem is that if someone types a value bigger than 999999 in the textbox he will get for sure the following error:
System.Data.SqlClient.SqlException: Error converting data type numeric to decimal.
I don't know how to either make sql or C# to truncate the value or catch the exception to automatically assign 0 to the parameter.
Please Help.
Moshe
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Jan 6, 2008
I have calculated values such as ;
OP1: 0,8625OP2: 31OP3: 0,965034965034965OP4: 0,8625OP5: 0,85OP6: 0,931506849315068OP7: 31MOV1 : 9,02903225806451MOV2: 8,68387096774194
I have a SQL database table where I defined all data fields decimal(18,2) for these valuesHere is my code ;
Dim conn As SqlConnection = New SqlConnection("Data Source=SERDARSQLEXPRESS;Initial Catalog=Borsa;Integrated Security=True")Dim sql As String = "UPDATE StockParametre SET OPT1 = @opt1, OPT2 = @opt2, OPT3 = @opt3, OPT4 = @opt4, OPT5 = @opt5, OPT6 = @opt6, OPT7 = @opt7, MOVY = @mov1, MOVD = @mov2 WHERE Stock = @TickerKod"Dim cmd As SqlCommand = New SqlCommand(sql, conn)cmd.Parameters.AddWithValue("@opt1", op1)cmd.Parameters.AddWithValue("@opt2", op2)cmd.Parameters.AddWithValue("@opt3", op3)cmd.Parameters.AddWithValue("@opt4", op4)cmd.Parameters.AddWithValue("@opt5", op5)cmd.Parameters.AddWithValue("@opt6", op6)cmd.Parameters.AddWithValue("@opt7", op7)cmd.Parameters.AddWithValue("@mov1", mov1)cmd.Parameters.AddWithValue("@mov2", mov2)cmd.Parameters.AddWithValue("@TickerKod", TickerKod)
conn.Open()cmd.ExecuteNonQuery()conn.Close()
When I run these code I have the fallowing error..
The incoming tabular data stream (TDS) remote procedure call (RPC) protocol stream is incorrect. Parameter 3 ("@opt1"): The supplied value is not a valid instance of data type float. Check the source data for invalid values. An example of an invalid value is data of numeric type with scale greater than precision..blabla ...I tried
cmd.Parameters.AddWithValue("@opt1", FormatNumber(CDec(op1), 2))
but I have the error
Error converting data type nvarchar to numeric.
Thanks
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Feb 19, 2002
I am using the statement below to calculate the average scores of the columns. When the result set is returned I would like to have a scale of 2. I am currently returning a scale of 6. What could I do to fix this?
Thanks for you help,
John
SELECT ((CONVERT(decimal(4,2),c2_3) + CONVERT(decimal(4,2),c2_15) +
CONVERT(decimal(4,2),c2_16) + CONVERT(decimal(4,2),c2_17)) / 4 * 100) AS Score_A
FROM dataquestionnaire
WHERE confirmation = '10/1/2001-999-1'
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Apr 16, 2008
I have just loaded my db table from an excel file using the import wizard. Prior to the import, I set my data types and in the field that I need a number with 1 decimal place I chose a decimal data type.
Made since to me
However, now my numbers do not have the decimals.
Please help.
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Feb 22, 2006
Hi all,
I'm trying to update a decimal field with a single decimal number (1.8) the problem i'm having, is that it's rounding the number up (2). I would've thought that a decimal datatype would keep the decimal places correct?
This is quite annoying.. I've been searching around the web for an answer.. To no avail (I'm probably asking the wrong question)
Can someone please point me in the right direction?
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Sep 11, 2014
I have table with data type decimal (18,2) when i try to load more then 2 decimal it is rounding off
Example 34.456 is rounded with 34.46
I want to store 34.45 only with out round in decimal data type how can i achive this
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Jan 21, 2014
I have value with data type nvarchar:
total
000000854.00
000000042.00
000000065.17
000000000024
000000000.24
How can i convert to decimal and remove 0 infront? but those with 0.xx would not remove the 0 after the dote.
total
854.00
42.00
65.17
24
0.24
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Dec 12, 2007
Hi..
I have a column in the data base with the type Float,
I want to limit the number of digits after decimal point to 2 when I display the value in ASP.NET but I don't know how!?
the number that appear after calculation llike "93.333333"
I use decimal(2,2) as data type but an error accour and this is the message
"- Unable to modify table. Arithmetic overflow error converting float to data type numeric.The statement has been terminated."
Can you help me..
thanks
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Mar 2, 2007
I have a CSV Flat File Source with a Decimal column - but DataPrecision property is grayed out - why?
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Aug 31, 2015
So my data is delivered as numeric(9,2)...like 100.00. I have to extract that data and store it as a varchar 0 filled without the decimal place...like 0000010000///I tried the following and it did not work...
RIGHT('000000000'+CONVERT(VARCHAR,[EODPosting].[Amount]),10),
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Mar 28, 2008
Happy Friday!
A while since I have posted a question, and this one is probably real easy.
I am trying to store numeric values from a php form in MSSQL 2000 database. However, the columns are set to float and if the value is 1.00, when entered into the table it is saved as 1
If I change the column type to money, the query fails, with an error message of conversion of datatype varchar to datatype money statement terminated.
anybody know what I need to do? do I need to do something in my query to specify that this is NOT varchar data?
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Apr 3, 2014
I am trying to setup an indicator value for an SSRS report to show green and red values on a report, based on the NRESULT value. The problem I am facing is that I have several different CASE statements that have the same logic, and they are processing just fine. NRESULT is a decimal field, so no conversion should be necessary. I do not know why I am getting the "Arithmetic overflow error converting varchar to data type numeric." error message.
Below is the CASE statement where the error is occurring. It is in the part of the ELSE CASE. The first CASE works just fine when the ELSE CASE is commented out. If I also change the ELSE CASE statement to say "else case when LEFT(NRESULT,1) = '-' then '0'", then it processes fine, too, so it has to be something I am missing something in the check on negative values. I do need the two checks, one for positive and one for negative values, to take place.
case when LEFT(NRESULT,1) <> '-' then --This portion, for checking positive values, of the CASE statement works fine.
CASE WHEN LEFT(ROUND(NRESULT,2),4) between 0.00 and 0.49 THEN '2' --Green
ELSE CASE WHEN LEFT(ROUND(NRESULT,2),4) > 0.49 THEN '0' --Red
ELSE '3' --White
END
END
else case when LEFT(NRESULT,1) = '-' then --This portion, for checking negative values, of the CASE statement is producing the conversion error message.
[code]....
I checked the NRESULT field, and there are not any NULL values in there, either.
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Sep 26, 2007
I am working with a legacy SQL server database from SQL Server 2000. I noticed that in some places that they use decimal data types, that I would normally think they should be using integer data types. Why is this does anyone know?
Example: AutomobileTypeId (PK, decimal(10,0), not null)
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Apr 23, 2006
Hello, I heve the code below.
double prix =TextBox1.Text;
And I have SQL SERVER table Products in witch I have a column prix ( Decimal(16,4) )
But if I insert prix on my table products on the field prix. prix does not take the correct value.
For example if TextBox1.Text=19,6 , the value inserted on the field prix in the table will be 20.
Why ?
How can we insert the correct value ?
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Dec 8, 2006
This one cost me a solid half hour yesterday. I'm wondering why onearth the default precision for a decimal type is 18,0. Maybe I'mmistaken. A decimal datatype sort of implies that you'd want somethingafter the decimal!Question is, can I set this database-wide? Like all new decimaldatatypes have a precision of 12,6 or something like that? I haven'tseen anything about this in the googling I have done...
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Apr 3, 2008
Hi Experts,
I have an urgent needs.
I want to store null for decimal type to sql server. But I do not know how to do that. I get data from user input. If the user did not enter anything in the textbox, then I want to store null to sql server. I list a piece od code below. I got error in the last line fItemObject.ChargeAmount = null;.
if (!String.IsNullOrEmpty(txtDescription.Text)) myObject.LongDesc = txtLongDesc.Text; else myObject.LongDesc = null;
if (!String.IsNullOrEmpty(txtAmount.Text)) myObject.Amount = Convert.ToDecimal(txtChargeAmount.Text); else myObject.ChargeAmount = null;
// Then I submit the myobject to the sql server.
Thank you very much in adavance!
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Apr 29, 2005
This problem is strictly an SQL problem, and I am about to lose my mind over it. I have a table named Inventory that has a column named PartialQty which is of type DECIMAL(11,4). I have shortened my query for simplicity, but here it is.
DECLARE @pqty1 DECIMAL(11,4)
SELECT @pqty1 = PartialQty FROM Inventory WHERE InventoryID = @invIDPRINT @pqty1 UPDATE Inventory SET PartialQty = 6.5513 WHERE InventoryID = @invID
SELECT @pqty1 = PartialQty FROM Inventory WHERE InventoryID = @invIDPRINT @pqty1
Before this query is ran, the value in PartialQty is 1.2345. If I run this 2 times in a row, this is the output I get:
RUN 1:
1.2345
(1 row(s) affected)
(1 row(s) affected)
(1 row(s) affected)
(1 row(s) affected)
6.0000
RUN 2:
6.0000
(1 row(s) affected)
6.5513
I don't understand 2 things. One is why the first run displays (1 row(s) affected) 4 times even though there is only one record with that InventoryID.
And the other thing I don't understand is why the first time I run it, it loses all of the values after the decimal point.
Please help,
Scott
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Feb 2, 2015
I have a table with fields:
Id int
Pay numeric(19,3)
value records:
id pay
1 1.000
2 2.250
3 3.445
4 6.000
I want select of table to form:
id pay
1 1
2 2.25
3 3.445
4 6
if value decimal pay field Greater of zero then
value select= value field
else
delete value decimal and show
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Mar 16, 2014
I would like to 'drop' some trailing zeros from a decimal value, e.g.: 50.000000, and I am wondering how to go about this?
The value is definitely of decimal type, and in this instance I know that I want to eliminate exactly six (6) zeros.
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Mar 29, 2007
I have a table in SQL 2005 with a field that has a value of type 'money'. When values are added, the field has 4 decimal places. Is there a way that I can make it only have 2 decimal places right away? Thanks!!!
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Dec 3, 2007
I am trying to have an Excecute SQL Task return a single row result set executed on SQL Server 2005.
The query in the Execute SQL Task is:
select 735.234, 2454.123
I get a conversion error when trying to assign to SSIS variables of type Double.
I have nothing configured in the "Parameter Mapping" tab.
I have the two SSIS Double variables mapped to the Tesult Name 0 and 1 in the "Result Set" tab
I don't want to use a for loop enumerator since there is a single row returned.
I simply want to assign these two values to SSIS Double variables (double is the closest match)
I can't even hack this by converting the decimals as string and then using DirectCast to convert them to Double.
Thanks for the help
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Mar 16, 2014
I would like to 'drop' some trailing zeros from a decimal value, e.g.: 50.000000, and I am wondering how to go about this?
The value is definitely of decimal type, and in this instance I know that I want to eliminate exactly six (6) zeros.
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Jul 23, 2005
Hi all,I have a table called PTRANS with few columns (see create script below).I have created a view on top that this table VwTransaction (See below)I can now run this query without a problem:select * from dbo.VwTransactionwhereAssetNumber = '101001' andTransactionDate <= '7/1/2003'But when I create an index on the PTRANS table using the command below:CREATE INDEX IDX_PTRANS_CHL# ON PTRANS(CHL#)The same query that ran fine before, fails with the error:Server: Msg 242, Level 16, State 3, Line 1The conversion of a char data type to a datetime data type resulted inan out-of-range datetime value.I can run the same query by commeting out the AssetNumber clause and itworks fine. I can also run the query commenting out the TransactionDatecolumn and it works fine. But when I have both the conditions in theWHERE clause, it gives me this error. Dropping the index solves theproblem.Can anyone tell me why an index would cause a query to fail?Thanks a lot in advance,AmirCREATE TABLE [PTRANS] ([CHL#] [varchar] (100) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,[CHCENT] [numeric](2, 0) NOT NULL ,[CHYYMM] [numeric](4, 0) NOT NULL ,[CHDAY] [numeric](2, 0) NOT NULL ,[CHTC] [char] (2) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL) ON [PRIMARY]GOCREATE VIEW dbo.vwTransactionsASSELECT CONVERT(datetime, dbo.udf_AddDashes(REPLICATE('0', 2 -LEN(CHCENT)) + CONVERT(varchar, CHCENT) + REPLICATE('0', 4 -LEN(CHYYMM))+ CONVERT(varchar, CHYYMM) + REPLICATE('0', 2 -LEN(CHDAY)) + CONVERT(varchar, CHDAY)), 20) AS TransactionDate,CHL# AS AssetNumber,CHTC AS TransactionCodeFROM dbo.PTRANSWHERE (CHCENT <> 0) AND (CHTC <> 'RA')*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
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Apr 11, 2008
Hi,
We serialize a custom object into a byte array (byte[1000]) and store it in a SQL Server 2005 table column as varbinary(1000).
There are a lot of rows retrieved with each SqlDataReader from C# code: up to 3,456,000 rows at a time (that is, roughly 3.5 million rows).
I am trying to figure out what will be more efficent in terms of CPU usage and processing time.
We have come up with quite a few approaches to solve this problem.
In order to try a few of them, I have to know how I can extract certain "pieces" of data from a varbinary value using T-SQL.
For example, out of those 1000 bytes, at any given moment we need only the first 250 bytes and the third 250 bytes.
Total: 1000 -> [250-select][250-no-need][250-select][250-no-need]
One approach would be to get everything and parse it in C#: get the 1st and the 3rd chunks of data and discard the unneeded 2nd and 4th.
This is WAY TOO BAD.
Another approach would be to delegate the "filtering" job to SQL Server so that SqlDataReader gets only what it needs.
I am going to try a SQL-CLR stored procedure, but when I compared performance of T-SQL vs. SQL-CLR stored procs a few weeks ago, I saw that the same job is done by T-SQL a bit faster AND (more importantly for us) with less CPU consumption than SQL-CLR.
So, my question is:
how do I select certain "pieces" of varbinary column data using T-SQL?..
In other words, instead of
SELECT MyVarbinary1000 FROM MyTable
how do I do this:
SELECT <first 250 from MyVarbinary1000>, <third 250 from MyVarbinary1000> FROM MyTable
?
Thank you.
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Dec 14, 2005
After testing out the application i write on the local pc. I deploy it to the webserver to test it out. I get this error.
System.Data.SqlClient.SqlException: The conversion of a char data type to a
datetime data type resulted in an out-of-range datetime value.
Notes: all pages that have this error either has a repeater or datagrid which load data when page loading.
At first I thought the problem is with the date, but then I can see
that some other pages that has datagrid ( that has a date field) work
just fine.
anyone having this problem before?? hopefully you guys can help.
Thanks,
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Feb 13, 2008
Hi,
I can populate a dataTable with type double (C#) of say '1055.01' however when I save these to the CE3.5 database using a float(CE3.5) I lose the decimal portion. The 'offending' code is:
this.court0TableAdapter1.Update(this.mycourtsDataSet1.Court0);
this.mycourtsDataSet1.AcceptChanges();
this.court0TableAdapter1.Fill(this.mycourtsDataSet1.Court0);
This did not happen with VS2005/CE3.01.
I have tried changing all references to decimal (or money in CE3.5) without luck.
I'm beginning to think that string may be the way to go!!!!!!!
Can someone shed some light on my problem.
Thanks,
Later:
It's necessary to update the datatable adapter as the 3.01 and 3.5 CE are not compatible.
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Mar 7, 2007
We have some columns in a table where the date is stored as 19980101 (YYYYMMDD). The data type for this column is NUMBER(8) in Oracle.
I need to copy rows from Oracle to SQL Server using SSIS. I used the Data Conversion transformation editor to change it to DT_DATE, but the rows are not being inserted to the destination.
On Error, If I fail the component, then the error is :
There was an error with input column "ORDER_DATE_CONV" (1191) on input "OLE DB Destination Input" (29). The column status returned was: "Conversion failed because the data value overflowed the specified type.".
Regards
RH
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