Why Does A Function Call Require Two Part Naming?
Apr 3, 2008
Hi,
I just found out that when I create a user defined scalar function, I must call it using dbo.[myFunctionName]. Why won't it work w/out dbo? Why are stored procedures able to use omit dbo?
Also, what is dbo specifying? I'm very unfamiliar with sql server security. Is this the user, schema, role? What's a schema? lol. Thanks.
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Jul 28, 2015
I am importing an existing database into a Visual Studio SQL Server Database project using Schema Compare. The Schema Compare works fine and I updated my project successfully. However, the project won't build because of the existence of 3-part names in some objects:
E.g. I import the database MyDB into a new project MyDB using Schema Compare. The database contains views with queries like this:
SELECT col1, col2. col3
FROM MyDB.dbo.MyTable
When trying to build this project I get errors like:
Error 39
SQL71561: View: [dbo].[vw_MyView] has an unresolved reference to object [MyDB].[dbo].[MyTable].
C:UsersRedirectionrittg2DocumentsVisual Studio 2012ProjectsMySolutionMyDBdboViewsvw_MyView_1.sql
but of course this is a bogus message since the view can clearly read from an object in the same database whether using 2-, 3-part naming (or 4-part naming for that matter).
How can I resolve these errors without editing the objects before running Schema Compare? (there are hundreds of them).
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Apr 13, 2007
I've finaly gotten a Linke Server up and running and been playing around with the settings, and one question keeps bugging me.
What is the point of the Catalog property value when you always have to put that database in the four part naming anyways?
Thanks.
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Jul 6, 2007
I have a linked server in SQL 2007 form SQL to DB2.(IBM)
If I write a distributed query from SQL to DB2 I get mt data returned.
ie:
select *
from openquery(Movex_Extranet,'Select * From mvxadta.ooline')
If I write a Query from SQL to DB2 using the 4-part naming convention linkserver.catalog.schema.object
then I also get my data returned.
ie:
select *
from MOVEX_EXTRANET.RCHASE5C.MVXADTA.OOLINE
My problem is with the Query Designer in SQL2007.
When I right click the first lot of code and select "Design query in editor"
The Designer GUI opens up and displays my table in graphical form with all columns selected - Great.
But When I repeat this for the code that uses the 4 part naming
The Designer opens up and displays the table but with no columns viewable or available for me to select ??
Anyone know what might be causing this to happen.
Is it a bug in SQL 2007 ??
I have tried linking the server using 2 types of providers ( One from Microsoft & one from IBM) but each time I still cannot see or choose columns in the designer using the 4part naming convention.
The 2 providers I tried where.
Microsoft OLE DB for ODBC Drivers.
IBM DB2 UDB for Iseries IBMDA400 OLE DB Provider
Any help greatly appretiated as I would really love to use the designer using 4part naming convention.
Apparently if you read this the it should work ?
http://msdn2.microsoft.com/en-us/library/aa225987(SQL.80).aspx#dvmscworkingwithtablesfromdifferentdatasources
Ray
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Jan 28, 2015
I have made the following Scalar-valued function:
CREATE FUNCTION [dbo].[TimeCalc]
(
@OriginalTime AS INTEGER
, @TenthsOrHundredths AS INTEGER -- code 2: 1/10, code 4: 1/100
)
RETURNS NVARCHAR(8)
[Code] ....
What it does is convert numbers to times
E.g.: 81230 gets divided by 10 (times in seconds: 8123). This 1 1 full minute, and the remainder = 2123 making it 1.21.23 mins)
So far so good (function works perfectly)
My question: sometimes times are in 1/100 (like above sample), sometimes in 1/10.
This means that, e.g. with a time like 3.23.40 the last zero must be deleted.
My thoughts are to use the results from the Return Case part, and as the code = 4: leave it as it is,
is the code 2 the use LEFT(... result Return Case ..., Len(..result Return Case.. - 1))
There are 5 codes: 0 1 2 3 and 4
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Jul 23, 2005
I have many stored procs in my database and I can call them just bytheir name uspMyProc with success always. However, I just created auser function ufnMyFunction as the same user that I created my procsbut when I call ufnMyFunction it fails unless I preface it with dbo. .How come the stored proc does not require this but the stored functiondoes?TFD
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Oct 17, 2006
Hi,
I am converting a database from Oracle to SQL-Server 2005 and in that context I needed to implement a function in the database. My database default uses the dbo schema and the function is there too. I define a function called "Translate" and wanted to use it like this :
SELECT translate(Phonenumber, '0123456789 ()+-', '0123456789') as PhonenumberFROM Customer
but what pussled my was that in order to make this work I had to prefix the translate method with "dbo." like this :
SELECT
dbo.translate(Phonenumber, '0123456789 ()+-', '0123456789') as Phonenumber
FROM
Customer
as all "objects" I'm using resides in the dbo schema - why must I prefiks only the function and not the table????
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Nov 6, 1998
Hi everyone,
I have a table which have several fields. I have a field that is made required by mistake. I would like to change this field to not require. Can someone help with the syntax?
Any help is greatly appreciate.
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Jun 10, 2007
I dont have the SQL EXPRESS installed instead I have SQL Standard Edition.
I have two SQL Server instances installed.
1- UserLT (this is sql 2000)2- UserLTSQL2005 (this is SQL 2005 named instance)
But when i try to add a database to my VS website project I get the following error:
Connection to SQL Server files (*.mdf) require SQL server express 2005 to function properly. please verify the installation of the component or download from the URL: go.microsoft.com/fwlink/?linkId=4925
I went in Tools>Opetions>DataBase tools>Data Connection>Sql Server Instance Name (blank for default)
and changed the "SQLEXPRESS" to "USERLTSQL2005".
But I still get the same error message. Any ideas how i can resolve this issue?
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Jan 11, 2006
hello,
i've installed SQL server 2005 express and Visual web developper 2005 express.
when i whant to create a database in VWD the following error occures:
connection to SQL Server files (*.mdf) require SQL server express 2005 to function properly. please verify the installation of the component or download from the URL: go.microsoft.com/fwlink/?linkId=49251
i searched the internet but can't find the solution, i already reinstalled my complete workstation but the problem stays.
please help!
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Jul 20, 2005
I want to write function to call another function which name isparameter to first function. Other parameters should be passed tocalled function.If I call it function('f1',10) it should call f1(10). If I call itfunction('f2',5) it should call f2(5).So far i tried something likeCREATE FUNCTION [dbo].[func] (@f varchar(50),@m money)RETURNS varchar(50) ASBEGINreturn(select 'dbo.'+@f+'('+convert(varchar(50),@m)+')')ENDWhen I call it select dbo.formuła('f_test',1000) it returns'select f_test(1000)', but not value of f_test(1000).What's wrong?Mariusz
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May 23, 2006
I have the final part of my report to complete. Yesterday I posted the most confusing set of threads ever on a public forum. So to cut the confusion, I am starting this thread again as now I know exactly what I need.
I have two tables each of which have a function that gathers data from them based around a set of parameters. This is then manipulated by a third function and the results of which are passed into a Stored Procedure. Here is the T-SQL syntax used for the SP;
SELECT fnWTRalldataReport.Areacode, fnWTRalldataReport.siteref, fnWTRalldataReport.estatename, fnWTRalldataReport.Securitised,
fnWTRalldataReport.unitref, fnWTRalldataReport.unittype, fnWTRalldataReport.unittype_count, fnWTRalldataReport.tenantname,
fnWTRalldataReport.tenantstatus, fnWTRalldataReport.tenantstatus_count, fnWTRalldataReport.unitstatus, fnWTRalldataReport.unitstatus_count,
fnWTRalldataReport.floortotal, fnWTRalldataReport.floortotocc, fnWTRalldataReport.floorspaceperc, fnWTRalldataReport.initialvacarea,
fnWTRalldataReport.initialvacnet, fnWTRalldataReport.TotalRent, fnWTRalldataReport.NetRent, fnWTRalldataReport.FinalRtLsincSC,
fnWTRalldataReport.rentrolldiscperc, fnWTRalldataReport.netrentpersqft, fnWTRalldataReport.ErvTot, fnWTRalldataReport.tenancyterm,
fnWTRalldataReport.landact, fnWTRalldataReport.datadate, fnWTRalldataReport.div_mgr, fnWTRalldataReport.portfolio_mgr,
fnWTRalldataReport.propcat, fnWTRalldataReport.budgeted_net_rent, fnWTRalldataReport.budgeted_occupancy,
fnWTRbudgetdata_1.budgeted_net_rent AS budget_rent, fnWTRbudgetdata_1.budgeted_occupancy AS budget_occ
FROM dbo.fnWTRalldataReport(@dt_src_date, @chr_div, @vch_portfolio_no, @vch_prop_cat) AS fnWTRalldataReport LEFT OUTER JOIN
dbo.fnWTRbudgetdata(@dt_src_date) AS fnWTRbudgetdata_1 ON fnWTRalldataReport.siteref = fnWTRbudgetdata_1.site_ref
The result of this SQL places a value for budget_rent and budget_occ against every row that the 1st function's result set. What I want to achieve is that where the site_ref is equal in both functions results, I want it to place the budget_rent & budget_occ value against the first row only of each site_ref only.
To explain briefly the structure. Table one has various fields including site_ref and unit_ref. There are many unit_ref's per site_ref in this table. Table 2 has only site_ref and budget info. Someone yesterday suggested that I could achieve this my using something along the lines of the Min() function e.g. Min(unit_ref).
Could someone please elaborate on this for me. I have gone through my SQL book and read about min() and also BOL, but I can't quite work the syntax out to put the budget info against only one line per site based around the lowest unit_ref per site_ref.
This might seem confusing, but it is easier to read than the other thread I assure you.
Regards
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Mar 28, 2006
can i make a function call from stored procedure
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Feb 26, 2008
Does anybody knows how to call a function from one VB source file to another VB source file??
I have create a MDI parent form, now i want to call the function of the child form from the parent form. Does anyone know this??
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Feb 25, 2008
Can someone help me to understand a stored procedure I am learning about? At line 12 below, the code is calling a function named"ttg_sfGroupsByPartyId" I ran the function manually and it returns several rows/records from the query. So I am wondering? does a call to the function return a temporary table? And if so, is the temporary table named PartyId? If so, the logic seems strange to me because earlier they are using the name PartyId as a variable name that is passed in.
1 ALTER PROCEDURE [dbo].[GetPortalSettings]2 (3 @PartyId uniqueidentifier,45 AS6 SET NOCOUNT ON7 CREATE TABLE #Groups8 (PartyId uniqueidentifier)910 /* Cache list of groups user belongs in */11 INSERT INTO #Groups (PartyId)12 SELECT PartyId FROM ttg_sfGroupsByPartyId(@PartyId)
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May 9, 2006
I made an SQL function in MSSQL2000. This is a function that get's a calculated heat emission. When I run the Query in MSSQL2000 the function works. It calculates every emission for every row. When I call this SQL function in VS2005, it says it does not recognize the function. Does anyone know what this may cause? thank you. For the people who are bored, I added the SQL statement. The error is at the function
SELECT TOP 15 tbProducts.prod_code, tbProductProperties.prop_height, tbProductProperties.prop_length, tbProductProperties.prop_type, tbProductProperties.prop_default_emission, tbProductProperties.prop_weight, tbProductProperties.prop_water_volume, tbProductProperties.prop_n_value, GetHeatEmission(50,70,20,[prop_default_emission],[prop_n_value]) AS customEmission FROM tbProductClassification INNER JOIN tbProducts ON tbProductClassification.clprod_fk_prod_id = tbProducts.prod_id INNER JOIN tbProductProperties ON tbProducts.prod_id = tbProductProperties.prop_fk_prod_id WHERE (tbProductClassification.clprod_fk_class_id = 3327) AND (prop_height >= '030') AND (prop_height = '060') AND (prop_length
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Dec 11, 2001
Hi,
Does anyone know if/how SQL server can call a function in a C++ library?
Cheers,
Xiaobing
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Aug 1, 2006
Hi,
I want to write one function like that
dbo.function( number , 1 , 2 ) ,
but I would like to overload, and send char or number
dbo.function( number, 'abx' , ' xpto' ).
I would like to keep the same name, Can I do this? or Do I need to write to differents functions
thanks,
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Aug 10, 2007
I have a procedure which has query
like Query 1.
Query 1
Select Clinetid
from clinet
inner join {
select centerid from GetChildCenter(@Centerid)
union
select centerid from getParentCenter(@Centerid)
} as Center c
on c.Centerid = client.Centerid
Query 2
declare @Center table ( centerid int)
insert into @Center
select centerid from getchildCenter(@Centerid) union all select centerid from getparentcenter(@Centerid)
Select Clinetid
from clinet
inner join @Center c on c.Centerid = client.Centerid
I just want to know which one is better performance wise..
because there is millions of rows for table center which is used by function getChildCenter() and GetparentCenter()
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Jan 19, 2007
Hi All,
I'll admit that I'm not the greatest at stored procedure/functions but I want to learn as much as possible. So I have two questions:
1) I had VS2005 autogenerate a sqldatasource that created Select/Insert/Update stored procedures. When Updating a record and calling the stored procedure, I want to query another table (we'll call it tblBatchNo) that has only one record, Batchno. I want to put that current batchno into the Update statement and update the record with the current batchno. Can someone point me in the right direction? Remember that I'm still a beginner on this subject.
2) Can someone provide any links to online tutorials on t-sql?
Thanks in advance.
Curtis
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Sep 17, 2007
I'm not sure this is the place for this question, but not sure where else to go. I've written asp.net code to read from a sql server 2005 db and send out customized emails based on user info.Currently the process gets rolling by clicking a button in a web page.The client doesn't want to click a button, they want to run the email sender on a timer.How can I set up my function to run on a timer either in asp.net or more likely called from sql server?
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Sep 12, 2012
How to call a sql function in stored procedure using Sqlserver 2008?
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Aug 27, 2007
Hello All,
How do i call a user defined function from within a stored procedure,
I have created a simple function which takes firstname and lastname as parameters and returns the concatenated name string.
That part works.
declare @fullname varchar(400)
@fullName=getFullName(@firstname,@lastname)
As always thanks for all your input
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Jul 23, 2005
Hi all, I want to use a function with a tabel object as parameter. Doessomeone know a method to do this. I have read that a table as parameteris invalid.
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Nov 13, 2007
Hi,is there any method to call a store procedure into a function?ThanksFabio
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Nov 21, 2007
Hi:
We found the problem that when the SP call function,there must have 'dbo.' before the function.Does it necessarily?Can delete 'dbo.' schema when call function in SP?
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Jun 2, 2006
I currently have the fllowing Stored Procedure. When I pass the the Url of the web service in the parameters, I'm having a sp_OAMethor read response failed error.
I don't know how to pass the parameter as well as the name of the function in the Web Service I'm calling. Maybe I'm all wrong here with this code too?
Thanks for any help.
ALTER PROCEDURE [dbo].[pTAPServiceWeb]
@sUrl varchar(200),
@response varchar(8000) out
AS
DECLARE @obj int
DECLARE @hr int
DECLARE @status int
DECLARE @msg varchar(255)
EXEC @hr = sp_OACreate 'MSXML2.ServerXMLHttp', @obj OUT
IF @hr < 0
BEGIN
RAISERROR('sp_OACreate MSXML2.ServerXMLHttp failed', 16, 1)
RETURN
END
EXEC @hr = sp_OAMethod @obj, 'Open', NULL, 'GET', @sUrl, false
IF @hr < 0
BEGIN
SET @msg = 'sp_OAMethod Open failed'
GOTO err
END
EXEC @hr = sp_OAMethod @obj, 'send'
IF @hr < 0
BEGIN
SET @msg = 'sp_OAMethod Send failed'
GOTO err
END
EXEC @hr = sp_OAGetProperty @obj, 'status', @status OUT
IF @hr < 0
BEGIN
SET @msg = 'sp_OAMethod read status failed'
GOTO err
END
-- IF @status <> 200
-- BEGIN
-- SET @msg = 'sp_OAMethod http status ' + str(@status)
-- GOTO err
-- END
EXEC @hr = sp_OAGetProperty @obj, 'responseText', @response OUT
IF @hr < 0
BEGIN
SET @msg = 'sp_OAMethod read response failed'
GOTO err
END
EXEC @hr = sp_OADestroy @obj
RETURN
err:
EXEC @hr = sp_OADestroy @obj
RAISERROR(@msg, 16, 1)
RETURN
GO
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Oct 15, 2007
how can you call a sql function in data flow? I have a function that calculate age base on the data in two columns . I would like to call this function in data flow to calculate the age..
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May 22, 2007
Hello
i am trying to call a function from the SQL server using Ole DB command Transformation using [dbo].[ConvertToDate] ?,?,?,?
there are no errors while executing this transformation
but this function returns a value
Now i need to capture this value how do i do that using the OLE DB command Transformation or any other transformation
Thanks
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Jul 3, 2006
Hi
i m trying to call a function in insert statment
Insert Into (value, value1)
Value(@value, dbo.function(@value1)
dbo.function returns a value,
when i test the function in querry builder all goes fine.
In my program i become a error
"Parameterized Query '' ' expects parameter @value1 , which was not supplied."
I m using visual studio , tableadapter.update function to insert datarecords in db
thx for help
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Jul 19, 2007
Hello Guys,
I have a question that seems easy but I can not figure out...
Premise:
Have Custom code that fixes Divide by Zero Errors in SSRS. I have added the code to the Custom Code area in Report Properties correctly.
I have a Dataset that has a calculation for a column within a select statement
Query Pseudocode:
select ...[FRC%]=convert(decimal(13,2),sum(cost))/convert(decimal(13,2),sum(income))...
,year
from
(subquery"blah" )
Union
(Subquery"blah")
Custom Code:
Public Function SafeDiv(ByVal numerator as Double, ByVal denominator as Double) as Double
if denominator = 0 then
return 0
else
return numerator/denominator
end if
End Function
How To use:
If you have a field that does division and you need to eliminate the divide by zero error that occurs with SSRS then type =code.SafeDiv(first,second) in the field.
Problem:
How do I add this code reference in the following dataset select statement
select ...[FRC%]=convert(decimal(13,2),sum(cost))/convert(decimal(13,2),sum(income))...
,year
from
(subquery"blah" )
Union
(Subquery"blah") table1
I tried to do this:
from this:
[FRC%]=convert(decimal(13,2),sum(cost))/convert(decimal(13,2),sum(income)) ...
to this
[FRC%]=code.Safediv(convert(decimal(13,2),sum(cost)),convert(decimal(13,2),sum(income))) ...
But it did not work...gave me this error:
TITLE: Microsoft Report Designer
------------------------------
An error occurred while executing the query.
Cannot find either column "code" or the user-defined function or aggregate "code.safediv", or the name is ambiguous.
------------------------------
ADDITIONAL INFORMATION:
Cannot find either column "code" or the user-defined function or aggregate "code.safediv", or the name is ambiguous. (Microsoft SQL Server, Error: 4121)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=09.00.1399&EvtSrc=MSSQLServer&EvtID=4121&LinkId=20476
------------------------------
BUTTONS:
OK
------------------------------
Help!
P.S.
this is a Matrix report and this select statement is within one of the datasets that fill a matrix.
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Dec 21, 2007
I have a function that I need to call from an execute sql task. I want to bind the return value from the function to an ssis variable.
Can someone please show me an example of what the function syntax needs to look like in order for this to work? I know that with sp's, you need to explicitly state the column names.
I have tried many things without success.
Thanks
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Apr 24, 2007
Good day!
What is the syntax on calling a function from a column formula in an MS SQL table.
I created a table, one column's value will be coming from a function. And at the same time, I will pass parameters to the function. How do I do this? Is this correct?
SELECT dbo.FunctionName([Parameter1, Parameter2])
But i can't save the table, "Error validating the formula".
Pls. help
Thanks a lot.
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