Shows whether the data type of the selected column can be determined with certainty. (Applies only to Microsoft SQL Server 2000 or later.)
This is what Microsoft documentation says for this column property. How I can use his feature for database application development? What is the practical use of this property?
SQL Server 2005.
Thank you,
Smith
Per 2005 BOL:
Determinism
Deterministic functions always return the same result any time they are called with a specific set of input values and given the same state of the database. Nondeterministic functions may return different results each time they are called with a specific set of input values even if the database state that they access remains the same.
The Database Engine automatically analyzes the body of Transact-SQL functions and evaluates whether the function is deterministic. For example, if the function calls other functions that are non-deterministic, or if the function calls extended stored procedures, then the Database Engine marks the function as non-deterministic. For common language runtime (CLR) functions, the Database Engine relies on the author of the function to mark the function as deterministic or not using the SqlFunction custom attribute.
Now my question. When wouldn't a function return the same result under these circumstances? When wouldn't any query do this for that matter? What would possibly cause different result sets when the same input parameters are supplied?
TIA, cfr
Hi all... This is the definition on the M/S site:
"Deterministic functions always return the same result any time they are called with a specific set of input values and given the same state of the database. Nondeterministic functions may return different results each time they are called with a specific set of input values even if the database state that they access remains the same."
Good... straight forward, right? Ok.... try entering thses command seperately:
Create Table Readings (ReadingDate DateTime Not Null);
Create Function [dbo].[funct_SameDate](@datReadingDate Datetime)
Returns DateTime
As
Begin
return @datReadingDate;
End
Alter table Readings add
[TempColumn] as (dbo.[funct_SameDate](ReadingDate)) PERSISTED NOT NULL;
Error on last command returns:
Computed column 'TempColumn' in table 'Readings' cannot be persisted because the column is non-deterministic.
Can someone please explain this to me? The same value is always being returned.
This does work:
Create Table Readings (ReadingDate DateTime Not Null);
Alter table Readings add [TempColumn] as (ReadingDate) PERSISTED NOT NULL;
I obviously want to do more things inside the function, but I can't get by the first step.
Any suggestions?
Thanks!
Forch
Gentlemen What is "Non_Deterministic" about the function below?
I pass DATETIME Column and a DECIMAL column ti the function. It keeps yelling at me saying it is a non-deterministic function.
I am using this function to PERSIST a Computed Column.
I have tried converting all NVARCHARs to VARCHARs.
Tredi returning a VARCHAR instead of a DATETIME, but still did not succeed.
Am I doing something wrong, I must be.....
CREATE FUNCTION [dbo].[udf_GetDateTime](@Date DATETIME, @TimeDecimal DECIMAL)
RETURNS DATETIME
AS
BEGIN
DECLARE @DateStr NVARCHAR(23)
DECLARE @TimeStr NVARCHAR(12)
DECLARE @DateTimeResult DATETIME
SET @TimeStr = RIGHT('000000' + CONVERT(NVARCHAR(6), @TimeDecimal), 6)
SET @DateStr = CONVERT(NVARCHAR(10), @Date, 120) + ' ' +
SUBSTRING(@TimeStr, 1, 2) + ':' +
SUBSTRING(@TimeStr, 3, 2) + ':' +
SUBSTRING(@TimeStr, 5, 2)
RETURN CONVERT(DATETIME, @DateStr, 120)
END
hi
i export tables from Local to Online Server But some tables have a column with Identity=True
But after export tables that Property is not True How I can change it True With Query Analyzer????????/
Is there a way to remove the Identity property of a column in SQL Server 2000?
The statement:
<code>
ALTER TABLE <table name> ALTER COLUMN <column name> DROP IDENTITY
</code>
returns a syntax error.
Thank you,
Jeff
Hi, I want to know how to remove identify property from a column without recreating the whole table...
When I do it in Enterprise Manager, it actually drop and recreate the table
in background. I just like to know if there is other way without recreating the tables. Thanks!
Xiao Tan
How to remove an Identity property for an Identity Column
View 1 Replies View RelatedHi,
I am using Sql Server 2005 as the database management and Access 2003 as the front-end. In the database, I intend to give different views of tables to different users. That's why I used suser_sname system function, which returns the windows login id and authenticates users to see different records in the same view. What I want to do in Access is, allowing some specific users to be able to do update, insert and delete operations through a form based on this view (which only depends on 1 table). However, Access tells me that "the recordset is not updateable". In order to be able to change records, I tried to create new index for the view in Sql Server, which failed giving "Sql Server, Error number:1949" and telling me that it fails since suser_sname yields non-deterministic results. The strange thing is that when I open VB Editor in Access and write a simple update code within this form, it updates both the view and the table in the database. My question is: How can I do update, delete and insert operations on the form directly? Is there a way to do the authentication without using a nondeterministic function in Sql Server or using the front-end Access 2003? Maybe a function similar to the current_user function in Access can do that, I don't know.
It's been a long question but I desperately need the answer. Any thanks will be appreciated.
Hi All,
Can any body tell me that how we can attach IDENTITY property to an existing int column
i need to alter all foreign keys in my database and uncheck the"Enforce relationship for replication" check box. Using the EM, Iextracted the code snippet below. unfortunately, when i run this testfrom query analyzer, then go back into the EM, the box is stillchecked.can anyone tell me what i am missing? any advice on unsetting thisattribute globally would be appreciated!BEGIN TRANSACTIONSET QUOTED_IDENTIFIER ONSET TRANSACTION ISOLATION LEVEL SERIALIZABLESET ARITHABORT ONSET NUMERIC_ROUNDABORT OFFSET CONCAT_NULL_YIELDS_NULL ONSET ANSI_NULLS ONSET ANSI_PADDING ONSET ANSI_WARNINGS ONCOMMITBEGIN TRANSACTIONALTER TABLE dbo.CustomerCustomerDemoDROP CONSTRAINT FK_CustomerCustomerDemo_CustomersGOCOMMITBEGIN TRANSACTIONALTER TABLE dbo.CustomerCustomerDemo WITH NOCHECK ADD CONSTRAINTFK_CustomerCustomerDemo_Customers FOREIGN KEY(CustomerID) REFERENCES dbo.Customers(CustomerID) NOT FOR REPLICATIONGOCOMMITthanks!!
View 4 Replies View RelatedHi
I am new to SQL Server and am migrating another database
In my original database I have a default(constant) type field and a calculated field both of which call the same user defined function: GetMyUID()
My Function GetMyUID() returns the current date, time and users initials, i.e. "20080522T09:31:15.250LSG"
When a record is first created both fields have identical values
As the record is updated over time my constant field stays constant and my calculated field reflects the time the record was last updated and the initials of that person. So my first field is called 'Created' and my second is called 'Updated'
I would have thought that something like this would be a pretty bog standard and very straightforward requirement in any database
However in SQL I am getting error messages about the return value being non deterministic
I searched the web and found advice that to sort the problem I need to use WITH SCHEMABINDING in my function definition
Unfortunately I am still getting the same 'non deterministic' error
I wonder if (in the quest to not have an overlong field) by looking up the persons initials from a 'STAFF' file rather than leaving the username in full tacked on to the end that this is causing the problem?
I can't imagine that what I am trying to achieve is rocket science but unfortunately have not been able to find any resource on the web that solves this issue for me
In desperation I turn to you
Please help (preferably by letting me have a few lines of code that return the current date/time followed by the username lookup of a Username's initials, here is a snippet of my code...
RETURN (Convert(VarChar(8),@DateTimeNow,112)+ Right(Convert(VarChar(30),@DateTimeNow,126),13)+dbo.myInitials())
Where the dbo.myInitials() calls:
RETURN (SELECT STAFF.Code from dbo.STAFF where STAFF.Login = dbo.myLogin())
and dbo.myLogin() calls
return UPPER(Right(System_User,PATINDEX('%\%',System_User)))
How do i drop/remove the identity property for an existing column in all Tables where the Identity column is a primary key.
The Script below was used to find all the tables that have an Identity Column as a primary key in a database. Now i want to remove the identity property from the Identity Columns that have a primary key in the database.
select pk.table_name, c.column_name,
from information_schema.table_constraints pk
INNER JOIN information_schema.key_column_usage c ON c.TABLE_NAME = pk.TABLE_NAME
and c.constraint_name = pk.constraint_name
where constraint_type = 'PRIMARY KEY'
and COLUMNPROPERTY(object_id(pk.table_name), column_name, 'IsIdentity') = 1
ORDER BY pk.table_name, c.column_name
I am trying to figure out how to set the Description of a Column in my database table by making a SQL function call. I know that I can go into Microsoft Studio Express and type in each desciption for each column. I just have about 1000 variables and each variable's description is in an Excel spreadsheet. I want to be able to build SQL code that will set each of the 1000 variables own description.
Thanks for any help.
Wesley Marshall
Hi,
I am using Sql Server 2005 as the database management and Access 2003 as the front-end. In the database, I intend to give different views of tables to different users. That's why I used suser_sname system function, which returns the windows login id and authenticates users to see different records in the same view. What I want to do in Access is, allowing some specific users to be able to do update, insert and delete operations through a form based on this view (which only depends on 1 table). However, Access tells me that "the recordset is not updateable". In order to be able to change records, I tried to create new index for the view in Sql Server, which failed giving "Sql Server, Error number:1949" and telling me that it fails since suser_sname yields non-deterministic results. The strange thing is that when I open VB Editor in Access and write a simple update code within this form, it updates both the view and the table in the database. My question is: How can I do update, delete and insert operations on the form directly? Is there a way to do the authentication without using a nondeterministic function in Sql Server or using the front-end Access 2003? Maybe a function similar to the current_user function in Access can do that, I don't know.
It's been a long question but I desperately need the answer. Any thanks will be appreciated.
I am having problems exporting data into a flat file using specific code page. My application has a variable "User::CodePage" that stores code page value (936, 950, 1252, etc) based on the data source. This variable is assigned to the CodePage property of desitnation file connection using Property expression.
But, when I execute the package, the CodePage property of the Destination file connection defaults to the initial value that was set for "User:CodePage" variable in design mode. I checked the value within the variable during runtime and it changes correctly for each data source. But, the property of the destinatin file connection doesn't change and results in an error.
[Flat File Destination [473]] Error: Data conversion failed. The data conversion for column "Column01" returned status value 4 and status text "Text was truncated or one or more characters had no match in the target code page.".
[DTS.Pipeline] Error: The ProcessInput method on component "Flat File Destination" (473) failed with error code 0xC02020A0. The identified component returned an error from the ProcessInput method. The error is specific to the component, but the error is fatal and will cause the Data Flow task to stop running.
If I manually update the variable with correct code page and re-run the ETL, everything works fine. Just that it doesn't work during run-time mode.
Can someone please help me resolve this.
Thanks much.
Hi,
I developed a simple custom control flow component which has several read/write properties and one readonly property (lets call it ROP) whichs Get method simple returns the value of a private variable (VAR as string). In the Execute method the VAR has a value assigened. When I put the value of ROP or VAR into MsgBox I can see the correct value. However when I execute the component I can not see the value of the ROP in the property window. I see the property but its value is empty string. For example when I put a breakpoint to postexecute or check the property before click OK in a MsgBox I would expect that the property value would be updated in SSIS as well. Is there a way how to display correct values of custom tasks properties in property window?
Thanks for any hints.
Untill recently I had a smooth running SSIS package,but suddenly it throws error syaing
"OnError,,,,,,,The result of the expression
"@[User:trTextFileImpDirectory] +"SomeTextStringHere"+ @[User:trANTTextFileName] +(DT_STR,30,1252) @[User:taging_Date_Key]+ "SomeTextStringHere"
" on property "ConnectionString" cannot be written to the property. The expression was evaluated, but cannot be set on the property."
I have child SSIS package running under a parent package (through execute package task)
I have few flat file connection managers in child package for text file import , in which I am building text file path dynamically at run time by assigning an expression in connection string property of connection manager.
The Expression is as follows
"@[User:trTextFileImpDirectory] +"SomeTextStringHere."+ @[User:trANTTextFileName] +(DT_STR,30,1252) @[User:taging_Date_Key]+ +"SomeTextStringHere"
Where @[User:trTextFileImpDirectory] is a variable which contains path of directory containg text
files.Value in this variable is assigned at runtime from parent package's variable,which in turns fetch
value from a configuration file on local server.
With my current configuration this path has been configured to some other server's directory over network ( I.e my package picks text files from some other servers folder over network)
While
"Some string here"+ @[User:trANTTextFileName]" part of file name string.
(DT_STR,30,1252) @[User:taging_Date_Key] Contain the date of processing ,value in this variable is also picked up at run time from parent package variable.
1) So can someone give me some insight into possible reason of failures.
2) Is it possible that problem arises if directory (from which I m picking text files) is assigned password or is there exist some problem in accessing forlders over network ?
3) Or there can be some problem in package configuration at design time( I.e where I m assigning value in variable from parent package vriables)?
Hello,
I have a group I'll call G4.
The header table row for G4 contains 3 textboxes containing the sums of the contents within G4. The header table row for G4 is visible while it's contents, including the G4 footer table row, is kept invisible until the report user drills down into the group.
When the report user drills down into G4 the footer table row becomes visible and the sums of the contents of the group are displayed for a second time.
At this point I want the sums in the header to be set to invisible when the sums in the footer are made visible by the drilldown.
When I try to reference the hidden property of textbox66 in the G4 footer in order to set the hidden property of header textbox57 in the G4 header I get to this point...
=IIF(reportitems!textbox66.
When it fails to give me an option of choosing the .Hidden property and instead only gives me a .Value.
If I complete the IIF statement manually so that it spells out .....
=IIF(ReportItems!Textbox66.Hidden = False, True, False)
...the report chokes on it.
So my question is, how do I reference the hidden property of one or more textboxes in a group to use as condition checks to set the hidden property of another textbox in that same group?
Thank you for any help you can provide. We are only now beginning to implement reporting services and I have not yet had the chance to research this in greater detail for lack of time.
I am having trouble initializing my connection. This is the code:
Dim
DBConnPhone As New
SqlConnection(ConfigurationManager.AppSettings("DBConnPhone"))
Dim DBConnClient As New
SqlConnection(ConfigurationManager.AppSettings("DBConnClient"))
Dim Sqlcomm1 As New SqlCommand
Dim Sqlcomm2 As New SqlCommand
DBConnPhone.Open()
DBConnClient.Open()
Once I start debugging, it stops and give me the error "The ConnectionString Property was not initialized" Any suggestions?
Hi, After many nights without sleep I'm not seeing this? Can anyone help why I'm getting a ConnectionString Property not set error? thanks!
Dim Sconn As StringDim DBCon As New Data.SqlClient.SqlConnectionSconn = ConfigurationManager.AppSettings("LocalSqlServer")DBCon = New SqlClient.SqlConnection(Sconn)Dim cmdCommand As New Data.SqlClient.SqlCommand
'Dont forget to instantiate a connection object
cmdCommand.Connection = DBConDBCon.Open()
I would like to create table by T-SQLand need to specify DescriptionBut I can't find any sample to add Description property by T-SQL Additionally, I also would like modify Description property by T-SQL. What can I do ????? Please help me ......
View 2 Replies View RelatedHello friends,
I am using sql server 2005. In some tables to create the column Autoincrement I had set the 'Idetity Specification' property to 'Yes'. I want to know that how can we do it through sql scripts i.e. by writing query.
Please let me know
Thanks & RegardsGirish Nehte
I'm trying to see the properties of a database and I'm getting the following error, even when trying to connect as sa.
Property Owner is not available for Database '[EPro]'. This property may not exist for this object, or may not be retrievable due to insufficient access rights.
any ideas? thanks in advance
hi,
whether there is any server property to remove lines while viewing the records in text mode
sample data:
select * from Employee
sno ename
--- ------
1 aaa
2 nnn
i need to remove the below the sno and ename column
I am use Reporting services 2000 SP2 and discover that the LineHeight property rendered correctly only in renderers for HTML output. PDF renderer, TIFF renderer and client side printing client do not render changes in this property at all.
Is it bug in Reporting services 2000?
Can someone try to change LineHeight property in SQL Server 2005 Reporting services and verify rendering output?
Hello.
within a data flow task I have two OLE DB sources that I am attempting to put into a merge join.
When I connect them to the merge join transformation I get the following error:
The IsSorted property must be set to true on both sources of this transformation.
I understand what this means but I cannot see an IsSorted option in the properties of the OLE DB sources so I can't set it. Can you tell me where it is? for the time being I'm having to put a sort transform in to get it to work.
Thanks
hi,
Can anyone tell me how to use the extended stored property like sp_addextendedproperty in java code?
Thanks,
Meghna
Dear friends,
Every time i open the jobs propertimes on server, it changes the sql server login to windows from sql authentication. also the properties i set at the time of creating a job had given me an option to select the run as user but from that moment the option has gone, whats that all about?
thanks,
We want to use our styles say "mystyle" on a report. I am surprised that we do not have cssstylename as a property for a textbox?
Ideally, i should be able to add that style in the styles.css file and reference the style name on the textbox. All that would be needed is that it would add an attribute to the rendered html. I wonder if it already exists and i am missing some information?
hi everyone,
According the information provided by BIDS if it have false anulates any message such as msgbox or something like that from the ssis execution. is it true?
TIA
I'm trying to figure out this repeatwith property setting. I have a row of textboxes that are labels at the top of the body of my report. Under this row is a list box "LstCategory" with a sublist "SubLstCategory". I set the repeatwith to LstCategory.
When I preview the report in VS it doesn't. When I publish this report in Report Manager it does. When I export from Report Manager (In PDF Format) it doesn't.
What do I have to do so it will repeat in Reporting Services?
Is it normal that In Report Manager that what you view does not export the same way?
I'm new at this altogether. About 4 months in SQL and 1 month with Reporting Services. So be gentle.
Regards,
Card Gunner
In short, I have a couple grid views on a page that are used for editing as well as sorting, etc. The grids are setup to use the SqlDataSources. I'm trying to deploy this to a server environment for different instances (test,cert,prod) and am trying to set the ConnectionString for the SqlDataSource in the code behind (Page_Load()). Everything works well, except, I get an error message that says the "ConnectionString Property Has Not Been Initialized." Its a javascript alert coming up on top of the grid view.
Here is how I'm trying to set the ConnString in the Page_Load():this.EmployeeTimeCardDataSource.ConnectionString = ConfigurationManager.ConnectionStrings[connStr].ConnectionString;
Here is an example of the DataSource.<asp:SqlDataSource ID="EmployeeTimeCardDataSource" runat="server" SelectCommand="sp_Select_Managers_Employees_List" SelectCommandType="StoredProcedure"> <SelectParameters> <asp:SessionParameter Name="CurrentUser" SessionField="User" Type="String" /> </SelectParameters></asp:SqlDataSource>