Created a function
CREATE FUNCTION Split_On_Upper_Case(#Temp VARCHAR(1000))
RETURNS VARCHAR(1000)
AS
BEGIN
DECLARE #KeepValues AS VARCHAR(50)
SET #KeepValues='%[^ ][A-Z]%'
WHILE PATINDEX(#KeepValues COLLATE Latin1_General_Bin,#Temp)>0
SET #Temp=STUFF(#Temp,PATINDEX(#KeepValues COLLATE Latin1_General_Bin,#Temp)+1,0,' ')
RETURN #Temp
END
When iam trying to exexute this SELECT Split_On_Upper_Case('SaiBharath') It gives an error "'Split_On_Upper_Case' is not a recognized built-in function name.".Can someone please explain this
Add [dbo] in prefix and then execute as same :
SELECT [dbo].[Split_On_Upper_Case] ('SaiBharath')
To execute function in sql, prefix dbo should be used.
SELECT [dbo].[Split_On_Upper_Case] ('SaiBharath')
Just to make sure, set the database you created your function on first by using the use clause and then prefix the call of your function with dbo.
USE <DatabaseName>
SELECT dbo.Split_On_Upper_Case('camelCase')
Also, a good practice is prefixing each function or database object for that matter, with its schema name.
Related
There is a nvarchar(100) column named value, when users insert into this column I need to check this code below in a trigger:
if exists
(
select *
from inserted i
where isnumeric(value)=0
)
begin
rollback transaction
raiserror('when productType is numeric, You have to insert numeric character',18,1)
return
end
but in application interface numbers inserted in persian, so always isnumeric(value)=0.
For example I need to if user insert ۴۵ in interface in my trigger value shown as 45.
So far I use CAST,CONVERT and collate Persian_100_CI_AI but I couldn't get any result.
Thanks.
Which version of SQL Server? v2017+ offers a new function TRANSLATE.
Might be, there is a more elegant way, but a pragmatic one is this:
DECLARE #PersianNumber NVARCHAR(100)=N'۴۵';
SELECT CAST(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE
(#PersianNumber,N'۰',N'0'),N'۱',N'1'),N'۲',N'2'),N'۳',N'3'),N'۴',N'4')
,N'۵',N'5'),N'۶',N'6'),N'۷',N'7'),N'۸',N'8'),N'۹',N'9') AS INT);
Take a look at this topic, it's the opposite of what you asked but it might help you if you could reverse it :
https://social.msdn.microsoft.com/Forums/sqlserver/en-US/a44ce5c1-d487-4043-be73-b64fa98ed7a5/converting-english-numbers-to-arabic-numbers-and-vice-versa
If you are using the latest version of sql server, try this link :
https://learn.microsoft.com/en-us/sql/t-sql/functions/translate-transact-sql
the obvious thing is that SQL does not have a solution out-of-the-box and you have to implement some kind of function yourself and use the returned value in the WHERE statement.
I have used Shungo's answer to implement the function you need (also works for English numbers or a mix of both):
CREATE FUNCTION IS_NORMALIZED_NUMBER (#PersianNumber NVARCHAR(MAX))
RETURNS NVARCHAR(MAX)
BEGIN
SET #PersianNumber = CAST(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE
(#PersianNumber,N'۰',N'0'),N'۱',N'1'),N'۲',N'2'),N'۳',N'3'),N'۴',N'4')
,N'۵',N'5'),N'۶',N'6'),N'۷',N'7'),N'۸',N'8'),N'۹',N'9') AS NVARCHAR(MAX));
RETURN ISNUMERIC(#PersianNumber)
END
Here is a more optimized version (which will only work for Persian numbers) :
CREATE FUNCTION IS_NUMBER (#PersianNumber NVARCHAR(MAX))
RETURNS NVARCHAR(MAX)
BEGIN
RETURN IIF(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE
(#PersianNumber,N'۰',N''),N'۱',N''),N'۲',N''),N'۳',N''),N'۴',N'')
,N'۵',N''),N'۶',N''),N'۷',N''),N'۸',N''),N'۹',N'') = N'',1 ,0 );
END
You can use TRANSLATE (Transact-SQL) function
SELECT TRANSLATE('1234', '0123456789', N'٠١٢٣٤٥٦٧٨٩') AS KurdishNumber
I'm trying to write a SQL function but an having problems with declaring the variables I need for use in the WHERE clause.
Here's the code:
CREATE FUNCTION fn_getEmployeePolicies(#employeeid smallint)
RETURNS TABLE
AS
DECLARE #empLoc varchar
DECLARE #empBusA varchar
DECLARE #empType varchar
#empLoc = SELECT Location FROM fn_getEmployeeDetails(#employeeid)
#empBusA = SELECT BusinessArea FROM fn_getEmployeeDetails(#employeeid)
#empType = SELECT Type FROM fn_getEmployeeDetails(#employeeid)
RETURN select PolicyId, PolicyGroupBusinessArea.BusinessArea, policysignoff.PolicyGroupLocation.Location, policysignoff.PolicyGroupEmployeeType.EmployeeType
from policysignoff.PolicyGroupPolicy
LEFT JOIN policysignoff.PolicyGroupBusinessArea on policysignoff.PolicyGroupBusinessArea.PolicyGroupId=policysignoff.PolicyGroupPolicy.PolicyGroupId
LEFT JOIN policysignoff.PolicyGroupLocation on policysignoff.PolicyGroupLocation.PolicyGroupId=policysignoff.PolicyGroupPolicy.PolicyGroupId
LEFT JOIN policysignoff.PolicyGroupEmployeeType on policysignoff.PolicyGroupEmployeeType.PolicyGroupId=policysignoff.PolicyGroupPolicy.PolicyGroupId
where BusinessArea = #empBusA
AND EmployeeType = #empType
AND Location = #empLoc
GO
The logic I am trying to build in is:
'given an employeeId, return all "applicable" policies'
An "Applicable" policy is one where the Business Area, Location and EmployeeType match that of the user.
I am trying to use another function (fn_getEmployeeDetails) to return the BusArea, Loc & EmpType for the given user.
Then with the results of that (stored as variables) I can run my select statement to return the policies.
The problem i am having is trying to get the variables declared correctly within the function.
Any help or tips would be appreciated.
Thanks in advance!
Without knowing what your error actually is, I can only say that you're properly not after using varchar as datatype without specifying length.
DECLARE #empLoc varchar will declare a varchar with length 1.
Chances are it should be something like varchar(255) or similar.
Second to set variables you'll either need to use SET and use paranthisis for selects or set it into the statement:
SET #empLoc = (SELECT Location FROM fn_getEmployeeDetails(#employeeid))
or
SELECT #empLoc = Location FROM fn_getEmployeeDetails(#employeeid)
There are subtle differences between these two methods, but for your purpose right now I don't think it's important.
EDIT:
Based on your comment you lack a BEGIN after AS, and an END before GO.
Basically - your function syntax is mixing up "inline" table function with "multi-statement" function.
Such a function "template" should look something like this:
CREATE FUNCTION <Table_Function_Name, sysname, FunctionName>
(
-- Add the parameters for the function here
<#param1, sysname, #p1> <data_type_for_param1, , int>,
<#param2, sysname, #p2> <data_type_for_param2, , char>
)
RETURNS
<#Table_Variable_Name, sysname, #Table_Var> TABLE
(
-- Add the column definitions for the TABLE variable here
<Column_1, sysname, c1> <Data_Type_For_Column1, , int>,
<Column_2, sysname, c2> <Data_Type_For_Column2, , int>
)
AS
BEGIN
-- Fill the table variable with the rows for your result set
RETURN
END
GO
(script taken from sql server management studio)
As far as I know, we can return a table as a result of a db function:
CREATE FUNCTION MyFunction(#Value varchar(100))
RETURNS table
AS RETURN (select * from MyTable where ColumnName = '#Value')
in this example we can make the column name as a parameter for the function. My question is, can we write the column name and table name as a parameter for the function? hence we can write a more generic function something like:
CREATE FUNCTION MyGenericSearchFunction(#TableName varchar(100), #ColumnName varchar(100), #Value varchar(100))
RETURNS table
AS RETURN (select * from #TableName where #ColumnName = '#Value')
No, you can't.
This would then be a dynamic query.
For dynamic queries in SQL Server, one has to use exec() or sp_executesql() functions, which are not allowed in functions.
I already have a function in SQL Server 2005 as:
ALTER function [dbo].[fCalculateEstimateDate] (#vWorkOrderID numeric)
Returns varchar(100) AS
Begin
<Function Body>
End
I want to modify this function to accept addition optional parameter #ToDate. I am going to add logic in function if #Todate Provided then do something else continue with existing code.
I modified the function as:
ALTER function [dbo].[fCalculateEstimateDate] (#vWorkOrderID numeric,#ToDate DateTime=null)
Returns varchar(100) AS
Begin
<Function Body>
End
Now I can call function as:
SELECT dbo.fCalculateEstimateDate(647,GETDATE())
But it gives error on following call:
SELECT dbo.fCalculateEstimateDate(647)
as
An insufficient number of arguments were supplied for the procedure or
function dbo.fCalculateEstimateDate.
which as per my understanding should not happen.
Am I missing anything?
From CREATE FUNCTION:
When a parameter of the function has a default value, the keyword DEFAULT must be specified when the function is called to retrieve the default value. This behavior is different from using parameters with default values in stored procedures in which omitting the parameter also implies the default value.
So you need to do:
SELECT dbo.fCalculateEstimateDate(647,DEFAULT)
The way to keep SELECT dbo.fCalculateEstimateDate(647) call working is:
ALTER function [dbo].[fCalculateEstimateDate] (#vWorkOrderID numeric)
Returns varchar(100) AS
Declare #Result varchar(100)
SELECT #Result = [dbo].[fCalculateEstimateDate_v2] (#vWorkOrderID,DEFAULT)
Return #Result
Begin
End
CREATE function [dbo].[fCalculateEstimateDate_v2] (#vWorkOrderID numeric,#ToDate DateTime=null)
Returns varchar(100) AS
Begin
<Function Body>
End
I have found the EXECUTE command as suggested here T-SQL - function with default parameters to work well. With this approach there is no 'DEFAULT' needed when calling the function, you just omit the parameter as you would with a stored procedure.
I have migrated a database from oracle, and now have a few Scalar-valued Functions.
However, when I call them, I get an error saying:
Cannot find either column "dbo" or the user-defined function or aggregate "dbo.chk_mgr", or the name is ambiguous.
I'm calling it like this:
SELECT dbo.chk_mgr('asdf')
What am I doing wrong?
Are you sure it's not a Table-Valued Function?
The reason I ask:
CREATE FUNCTION dbo.chk_mgr(#mgr VARCHAR(50))
RETURNS #mgr_table TABLE (mgr_name VARCHAR(50))
AS
BEGIN
INSERT #mgr_table (mgr_name) VALUES ('pointy haired boss')
RETURN
END
GO
SELECT dbo.chk_mgr('asdf')
GO
Result:
Msg 4121, Level 16, State 1, Line 1
Cannot find either column "dbo" or the user-defined function
or aggregate "dbo.chk_mgr", or the name is ambiguous.
However...
SELECT * FROM dbo.chk_mgr('asdf')
mgr_name
------------------
pointy haired boss
Can do the following
PRINT dbo.[FunctionName] ( [Parameter/Argument] )
E.g.:
PRINT dbo.StringSplit('77,54')
That syntax works fine for me:
CREATE FUNCTION dbo.test_func
(#in varchar(20))
RETURNS INT
AS
BEGIN
RETURN 1
END
GO
SELECT dbo.test_func('blah')
Are you sure that the function exists as a function and under the dbo schema?
You are using an inline table value function. Therefore you must use Select * From function.
If you want to use select function() you must use a scalar function.
https://msdn.microsoft.com/fr-fr/library/ms186755%28v=sql.120%29.aspx
Make sure you have the correct database selected. You may have the master database selected if you are trying to run it in a new query window.