Help Needed Converting C Float Value To DBNUMERIC ...
Jul 20, 2005
Hello all,
I need to return back to TSQL two numeric values from an
Extended Stored Procedure developed in C. As result my C
dll program produces two float values, the TSQL side expects
to have exactly: numeric(10, 5) and numeric.
Given that the structure to fill-up is DBNUMERIC defined
as:
I do not have any clue how to convert the float C datatype
to DBNUMERIC, specifically how to convert the float to an
array of bytes "BYTE val[MAXNUMERICLEN]".
I'm using c# 2.0. I have a datareader that reads an invoice line item from a table in my SQL Server database. The UnitPrice field is a Money field in SQL server. At the same time I have an invoice class in my application that has a UnitPrice property which is a float. How do I convert the SQLMoney to a float using my datareader? Right now I have: cm.CommandText = "SELECT ItemID, Quantity, UnitPrice, Discount FROM tblInvoiceLineItems"; using (SqlDataReader dr = cm.ExecuteReader()) { while (dr.Read()) { LineItem li = new LineItem(); li.UnitPrice = (float)(double)dr.GetFloat(3); // cast error here. lineItems.Add(li); } }
I 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
hello anyone... i got this message "Error converting data type varchar to float" when i was trying to insert values into table using instead of trigger...
below is my table ClimateData
quote:USE [PVMC Database] GO /****** Object: Table [dbo].[ClimateData] Script Date: 03/26/2008 03:04:44 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO SET ANSI_PADDING ON GO CREATE TABLE [dbo].[ClimateData]( [Climate_application_id] [uniqueidentifier] NOT NULL CONSTRAINT [DF_ClimateData_Climate_application_id] DEFAULT (newid()), [Latitude] [float] NULL, [Longitude] [float] NULL, [Altitude] [varchar](50) COLLATE Latin1_General_CI_AI NULL, [Climate_type] [varchar](100) COLLATE Latin1_General_CI_AI NULL, [PV_application_id] [uniqueidentifier] NULL, CONSTRAINT [PK_ClimateData_1] PRIMARY KEY CLUSTERED ( [Climate_application_id] ASC )WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY] ) ON [PRIMARY]
GO SET ANSI_PADDING OFF GO USE [PVMC Database] GO ALTER TABLE [dbo].[ClimateData] WITH CHECK ADD CONSTRAINT [FK_ClimateData_Photovoltaic] FOREIGN KEY([PV_application_id]) REFERENCES [dbo].[Photovoltaic] ([PV_application_id]) ON UPDATE CASCADE ON DELETE CASCADE
Below is photovoltaic table
quote:USE [PVMC Database] GO /****** Object: Table [dbo].[Photovoltaic] Script Date: 03/26/2008 03:06:58 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO SET ANSI_PADDING ON GO CREATE TABLE [dbo].[Photovoltaic]( [PV_application_id] [uniqueidentifier] NOT NULL CONSTRAINT [DF_Photovoltaic_PV_application_id] DEFAULT (newid()), [PV_site] [varchar](50) COLLATE Latin1_General_CI_AI NULL, [PV_state] [varchar](50) COLLATE Latin1_General_CI_AI NULL, [PV_type_of_system] [varchar](50) COLLATE Latin1_General_CI_AI NULL, [PV_nominal_power] [float] NULL, [PV_module] [varchar](150) COLLATE Latin1_General_CI_AI NULL, [PV_mounting] [varchar](50) COLLATE Latin1_General_CI_AI NULL, [PV_building_type] [varchar](50) COLLATE Latin1_General_CI_AI NULL, [PV_topology] [varchar](50) COLLATE Latin1_General_CI_AI NULL, [PV_new_or_retrofit] [varchar](50) COLLATE Latin1_General_CI_AI NULL, [PV_period_of_design] [varchar](50) COLLATE Latin1_General_CI_AI NULL, [PV_period_of_construction] [varchar](50) COLLATE Latin1_General_CI_AI NULL, [PV_commissioning_date] [datetime] NULL CONSTRAINT [DF_Photovoltaic_PV_commissioning_date] DEFAULT (getdate()), [PV_site_photo] [varbinary](max) NULL, [PV_peak_nominal_rating] [float] NULL, [User_application_id] [uniqueidentifier] NULL, [Org_application_id] [uniqueidentifier] NULL, CONSTRAINT [PK_Photovoltaic_1] PRIMARY KEY CLUSTERED ( [PV_application_id] ASC )WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY] ) ON [PRIMARY]
GO SET ANSI_PADDING OFF GO USE [PVMC Database] GO ALTER TABLE [dbo].[Photovoltaic] WITH CHECK ADD CONSTRAINT [FK_Photovoltaic_OrganizationDetail] FOREIGN KEY([Org_application_id]) REFERENCES [dbo].[OrganizationDetail] ([Org_application_id]) ON UPDATE CASCADE ON DELETE CASCADE GO ALTER TABLE [dbo].[Photovoltaic] WITH CHECK ADD CONSTRAINT [FK_Photovoltaic_Users] FOREIGN KEY([User_application_id]) REFERENCES [dbo].[Users] ([User_application_id]) ON UPDATE CASCADE ON DELETE CASCADE
Below also my command for instead of trigger
quote:set ANSI_NULLS ON set QUOTED_IDENTIFIER ON go
CREATE trigger [tr_v_PhotovoltaicClimateData] on [dbo].[v_PhotovoltaicClimateData] instead of insert as BEGIN
insert Photovoltaic (PV_site, PV_state, PV_type_of_system, PV_nominal_power, PV_module, PV_mounting) select distinct inserted.PV_site, inserted.PV_state, inserted.PV_type_of_system, inserted.PV_nominal_power, inserted.PV_module, inserted.PV_mounting from inserted left join Photovoltaic on inserted.PV_site = Photovoltaic.PV_site and inserted.PV_state = Photovoltaic.PV_state and inserted.PV_type_of_system = Photovoltaic.PV_type_of_system and inserted.PV_nominal_power = Photovoltaic.PV_nominal_power and inserted.PV_nominal_power = Photovoltaic.PV_module and inserted.PV_nominal_power = Photovoltaic.PV_mounting where Photovoltaic.PV_site IS NULL /*** Exclude Organization Detail already in the table ***/
insert ClimateData (Latitude, Longitude, Altitude, Climate_type, PV_application_id) select distinct inserted.Latitude, inserted.Longitude, inserted.Altitude, inserted.Climate_type, Photovoltaic.PV_application_id from inserted inner join Photovoltaic on inserted.PV_site = Photovoltaic.PV_site left join ClimateData on inserted.Latitude = ClimateData.Latitude and inserted.Longitude = ClimateData.Longitude and inserted.Altitude = ClimateData.Altitude and inserted.Climate_type = ClimateData.Climate_type where ClimateData.Latitude IS NULL /*** Exclude Organization Types already in the table ***/
END -- trigger def
and finally, i hav tried using this command to insert into table v_PhotovoltaicClimateData.. this is the command to insert
Hello everyone... i have some problem with instead of trigger... after insert values into v_PhotovoltaicClimateData, i got this error, Msg 8114, Level 16, State 5, Procedure tr_v_PhotovoltaicClimateData, Line 6 Error converting data type varchar to float.
quote:CREATE VIEW [dbo].[v_PhotovoltaicClimateData] AS SELECT dbo.Photovoltaic.PV_site, dbo.Photovoltaic.PV_state, dbo.Photovoltaic.PV_type_of_system, dbo.Photovoltaic.PV_nominal_power, dbo.Photovoltaic.PV_module, dbo.Photovoltaic.PV_mounting, dbo.ClimateData.Latitude, dbo.ClimateData.Longitude, dbo.ClimateData.Altitude, dbo.ClimateData.Climate_type FROM dbo.ClimateData INNER JOIN dbo.Photovoltaic ON dbo.ClimateData.PV_application_id = dbo.Photovoltaic.PV_application_id
below is my instead of trigger command...
quote:CREATE trigger [tr_v_PhotovoltaicClimateData] on [dbo].[v_PhotovoltaicClimateData] instead of insert as BEGIN
insert Photovoltaic (PV_site, PV_state, PV_type_of_system, PV_nominal_power, PV_module, PV_mounting) select distinct inserted.PV_site, inserted.PV_state, inserted.PV_type_of_system, inserted.PV_nominal_power, inserted.PV_module, inserted.PV_mounting from inserted left join Photovoltaic on inserted.PV_site = Photovoltaic.PV_site and inserted.PV_state = Photovoltaic.PV_state and inserted.PV_type_of_system = Photovoltaic.PV_type_of_system and inserted.PV_nominal_power = Photovoltaic.PV_nominal_power and inserted.PV_nominal_power = Photovoltaic.PV_module and inserted.PV_nominal_power = Photovoltaic.PV_mounting where Photovoltaic.PV_site IS NULL /*** Exclude Photovoltaic already in the table ***/
insert ClimateData (Latitude, Longitude, Altitude, Climate_type, PV_application_id) select distinct inserted.Latitude, inserted.Longitude, inserted.Altitude, inserted.Climate_type, Photovoltaic.PV_application_id from inserted inner join Photovoltaic on inserted.PV_site = Photovoltaic.PV_site left join ClimateData on inserted.Latitude = ClimateData.Latitude and inserted.Longitude = ClimateData.Longitude and inserted.Altitude = ClimateData.Altitude and inserted.Climate_type = ClimateData.Climate_type where ClimateData.Latitude IS NULL /*** Exclude Climate Data already in the table ***/
END -- trigger def
this is my commad insert values using instead of trigger that i've created...
after execute this commad, i got this error.. quote:Msg 8114, Level 16, State 5, Procedure tr_v_PhotovoltaicClimateData, Line 6 Error converting data type varchar to float.
I have created a stored procedure that contain this field (below) inorder to meet certain criteria. But my problem is when I try to runthe stored procedure I encounter an error "Error converting data typevarchar to float".CASE Final WHEN 0 THEN '--' ELSE Final END AS FinalGradeThe Final field is a float data type.Could anyone teach me how to fix this problem?
In 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.
I am importing a couple SAS datasets to SQL Server 2008 for a project. The dates are in a float format, they show up as DT_R8 in SSIS. How can I convert these values to SQL server datetime? I have tried dozens of methods I found on-line with no success, I keep getting 'Arithmetic overflow error converting expression to data type datetime.' errors.
Am converting varchar field to float and summing using group by and next inserting to varchar field(table).
while inserting float value it is converting to exponential ex:1.04177e+006 but if i execute only select statment actual float value will get display ex:1041765.726
My question is why it is converting while inserting ? and how to avoid it.
This one isn't so simple.I have a list of training modules, training complete dates and a list of employees in separate tables. I'll give an good example in a second. The problem I am having is that I need to generate a select statement that will generate a kind of 'spreadsheet' that will list the employees in the rows, and columns containing the results in the fields (the training module may or may not have been completed, and thus may or may not be in the result box. I think the example explains it fairly well (note, I did not design the database structure but have to work with it).Employees table:empNameJane DoeAlton BrownJohn DoeTrainingCourse table:courseNameWeldingBrain SurgeryScuba DivingResults table:empName: courseName: completeDate:Jane Doe Welding 2/2/2002Jane Doe Brain Surgery 3/7/2005Alton Brown Scuba Diving 9/23/2004Alton Brown Welding 11/4/2004John Doe Brain Surgery 6/14/2003End result of select statement: Welding Brain Surgery Scuba DivingJane Doe 2/2/2002 3/7/2005 Alton Brown 11/4/2004 9/23/2004John Doe 6/14/2003 Thanks a million to anyone with insight into this. I'm still trying to figure out a way to do this, but after a few days haven't come up with or found anything. Most things I've found online are too simplistic.
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
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!
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:
Hi! I'm quite new to SQL Server. I need to set a float datatype to display something like 3.55. However, all values that are stored in the float column are truncated to 4 or some other single digit. How can this be prevented?
I am sure this is a newbie question as I am new to Microsoft SQL server but any help is greatly appreciated. I am populating a SQL database from an AS400. The decimal numbers from the AS400 are coming accross with extra decimals. (ie. 63.02 is coming accross as 63.0200001)
Is there a way to limit the number of decimals in a float or real field - or a SQL command I can put in a script to truncate each field to 2 decimal places after they are populated.
We are having problems with rounding errors on large monetary calculations in sql server 6.5
The calculations include float fields (for volumes and unit of measure conversions in product movements). I was wondering if the float being "approximate" could be the problem.
IF it is, why would I want to store things as a float instead of a dec(28,14)? Is it faster to compute numbers stored as approximate binaries? Will we see a big performance hit if we switch some of the table`s field`s to decimals?
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
I 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?
Hi there I have two Databases in both databases are fields with float - no null If I am transfering data from one database to the other everything works well unless there is a comma in the field ( 0,99 or 123,456 )
"SQLAString = "Insert into InventurDaten (Artikelnummer,Hauptartikelnummer,Auspraegung,Arti kelbezeichnung,Artikeltext1,EDVEingang ,EDVAusgang,InventurmengeEDV) values ('" & ArtNr & "','" & ArtNrT & "','" & AP & "','" & ArtBez & "','" & ArtText & "'," & EDVEingang & "," & EDVAusgang & "," & ArtMenge & ")" " where EDVEingang and EDVAusgang are defined as float, no null
Then the programm stops with the following message: Within the INSERT-Procedure there are less columns then there are Contents in the Value-Clause.
I have to finish the programm until tomorrow morning and don't know what the problem is.
Hi!How do I do to make t-sql not rounding the result that i returned?For example:0.9616458*60 = 57,698748 (in any calculator)while following:--------------------------------declare @a floatdeclare @b intset @a=0.9616458set @b=60print @a*@b---------------------------------will show :57.6987How do I do to make MSSQL to show me the value whothout rounding it?Thanks!
select convert(float,'1.2334e+006')1233400.0select convert(decimal(20,2),'1.2334e+006')Server: Msg 8114, Level 16, State 5, Line 1Error converting data type varchar to numeric.Is there any way around?Is there any set options? I tried arithabort or arithignore and theydon't work.Thanks.
HI,I WANT THIS TO PRODUCE EXACT RESULT. (IN SQL SERVER)SELECT (23 / 233) * 100THE ANSWER SHOULD COME 9.871244635 OR 9.87BUT IT RETURNS 0.I WANT THE PERCENTAGE.HOW TO HANDLE THIS KIND OF PROBLEM.IS THERE ANY SET COMMAND FOR IT?THANKST.S.NEGIJoin Bytes!
Hi,Just wonder whyPRINT CAST(0.0573542567654 AS float)will give the rounded reult0.0573543rather than the original number?"float" should be 'big' enough to hold numbers that have even moredecimal places. How come it round up at the 7 decimal place?since I need to do some calculations with accumulated values. Therounded figure will cause significant error after a number of opertions.Are there any way to work around it?thanks*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
I am keep getting an arithmetic overflow converting float to type numeric when running a script that looks something like this.
insert into table1 ( column1 ) select column2 from source server.
column1 is a numeric (28,8) and column2 is float. there are about 2000000 records in column2, and I know that when I tried just copying the top 1000000 wasn't a problem.
does anyone know what could be causing this problem???
*it's not because the data in column2 is out of range.