SQL Server 2012 :: Possible To Tell Whether Function Passed A Value Or Used Default Value
Apr 22, 2015
I have a function that accepts a date parameter and uses getdate() as its default value. If a date is passed in, I'm going to have to find records using the datediff method based on input. If no date is passed, I am going to bypass the datediff logic and search for records based on a column called "is_current" which will reduce the query time.
However, I don't know how to tell if the date value in the function came from an input or was the default.
I have a requirement regarding a color combination data. I have a lookup table that holds a colorid, p1, p2, p3, p4 to p8 which will be having colors Red, Green and Amber. P1 to P8 columns holds these three colors based on their combinations.
I have attached the look up table data for reference.I need to pass the color values to p1 to p8 and need to retrieve the color id based on the passed color. If we pass values for all p1 to p8 then it is easy to get the color code, however it will not happen. The passed values may be dynamic. ie we will not have all 8 values all the times. sometimes we will have 2 colors passed, sometimes 5 colors will be passed.
If i pass only two colors say red and red, i need the color id of only the row that has red and red for p1 and p2 alone. i dont want want all the colorid's that has red and red in p1 and p2 and some other colors in p3 to p4.
The exact colorid of the combination must be returned on passing the values to p1 and p2.I am passing Red and Red as values to P1 and P2. In the look up table we can have 10 rows that has red and red i p1 and p2 like
So the result must have only the colorid 1 and not all the colorid's listed above. when I pass 3 red as values for p1, p2, p3 then the result must be 10. Colorid 1, 20, 30, 40, 50, 60 and 70 must not come in the result.I need a function or procedure that will accept the arguments and provide me the result based on the values.
I want to set the default parameters for a function. I;d like to set the date start date to current date and end date for the last 90 days. how to make this work?
Create Function HR.Equipment ( @startdate Date =(Convert(Date,DATEADD(DAY,-1,GETDATE())), @enddate Date = (Convert(Date,@StartDate-90) ) RETURNS TABLE AS RETURN ( SELECT EquipID, EmpName, IssueDate FROM HR.Equipment WHERE IssueDate <=@StartDate and IssueDate >=@EndDate ) GO
Currently i am using SQL Server 2012 Import/Export Wizard to upload data to sql tables manually. However i was trying to write a procedure to update that table. and on the time of execution, if i can pass excel. Is there any way to pass excel to stored procedure parameter?
Using a string of IDs passed into a stored procedure as a VARCHAR parameter ('1,2,100,1020,') in an IN without parsing the list to a temp table or table variable. Here's the situation, I've got a stored procedure that is called all the time. It's working with some larger tables (100+ Million rows). The procedure passes in as one of the variables a list of IDs for the large table. This list can have anywhere from 1 to ~100 IDs passed to it.
Currently, we are using a function to parse the list of IDs into a temp table then joining the temp table to get the query:
CREATE PROCEDURE [dbo].[GetStuff] ( @IdList varchar(max) ) AS SET NOCOUNT ON SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
[Code] .....
The problem we're running into is that since this proc gets called so often, we sometimes run into tempDB contention that slows this down. In my testing (unfortunately I don't have a good way of generating a production load) swapping the #table for an @table didn't make any difference which makes sense to me given that they are both allocated in the tempDB. One approach that I tried was that since the SELECT query is pretty simple, I moved it to dynamic SQL:
CREATE PROCEDURE [dbo].[GetStuff] ( @IdList varchar(max) ) AS SET NOCOUNT ON SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
[Code] ....
The problem I had there, is that it creates an Ad Hoc plan for the query and only reuses it if the same list of parameters are passed in, so I get a higher CPU cost because it compiles a plan and it also causes the plan cache to bloat since the parameter list is almost always different. Is there an approach that I haven't considered that may get the best of both worlds, avoiding or minimizing tempDB contention but also not having to compile a new plan every time the proc is run?
I am writing a stored procedure that takes in a customer number, a current (most recent) sales order quote, a prior (to most current) sales order quote, a current item 1, and a prior item 1, all of these parameters are required.Then I have current item 2, prior item 2, current item 3, prior item 3, which are optional.
I added an IF to check for the value of current item 2, prior item 2, current item 3, prior item 3, if there are values, then variable tables are created and filled with data, then are retrieved. As it is, my stored procedure returns 3 sets of data when current item 1, prior item 1, current item 2, prior item 2, current item 3, prior item 3 are passed to it, and only one if 2, and 3 are omitted.I would like to learn how can I return this as a one data set, either using a full outer join, or a union all?I am including a copy of my stored procedure as it is.
select substring(ISNULL(CAST(FullAdress AS NVARCHAR(MAX)),''),1,charindex(',',ISNULL(CAST(FullAdress AS NVARCHAR(MAX)),''))-1) from tbl_lrf_company_details_with_codes
but i am getting the error as "Invalid length parameter passed to the SUBSTRING function." Please advice Thanks In advance
I am using a simple procedure to pivot results (found in another forum and adapted it). It is done on SQL Server 2005 server with all service packs. Procedure: ************** ALTER Procedure [dbo].[EthnicityPivot] @StDate as Datetime, @EndDate as Datetime as begin DECLARE @Teams varchar(2000)
truncate table ForEthnicPivot
INSERT INTO ForEthnicPivot SELECT DISTINCT COUNT(ID), Team, Ethnicity FROM dbo._EthnicityByTeamEpisode where Startdate between @StDate and @EndDate GROUP BY Ethnicity, Team
SET @Teams = '' --// Get a list of the pivot columns that are important to you.
SELECT @Teams = @Teams + '[' + Team + '],' FROM (SELECT Distinct Team FROM ForEthnicPivot) Team --// Remove the trailing comma
SET @Teams = LEFT(@Teams, LEN(@Teams)-1) --// Now execute the Select with the PIVOT and dynamically add the list --// of dates for the columns EXEC( 'SELECT * FROM ForEthnicPivot PIVOT (SUM(countID) FOR Team IN (' + @Teams + ')) AS X' ) end ************
I can call the function: exec EthnicityPivot '01/01/2007','09/09/2007'
and it works fine in SQL analyzer, but when I want to use it in Visual Studio in a new report I am getting this error message:
There is an error in the query. Invalid length parameter passed to the SUBSTRING function. Incorrect syntax near ')'.
I have a procedure that calls a SVF to convert an xmldocument. The ultimate purpose is to update the xml in a column in a multi-million row table. The xml is stored as varchar(MAX), it was supposed to carry any type of text, initially at least.
My question is: why is the xml-parsing performed inside the function much slower when i pass the xmldocument as type xml than when it is passed as varchar(MAX) and the CAST to xml is within the function? Does processing the xml input parameter in SlowFunction involve expensive crossing of some context border?
The two versions of the SVF (they return the rowcount in this simplified example):
CREATE FUNCTION [dbo].[FastFunction] ( @inDetaljerText varchar(MAX) ) RETURNS int
[Code] ....
The two versions of the SP
CREATE PROCEDURE [dbo].[FastProcedure] AS BEGIN SET NOCOUNT ON; select dbo.FastFunction(al.Detaljer)
Hi, I am new at sql 2000 and 2005, I have created a package in 2005 which I am trying to execute on a daily bases by creating a job. At first because of security issues the job would not execute. Hence, I had to create a credential and a proxy to run the job with sa account. Now it is giving me this error, SQLServer Error: 536, Invalid length parameter passed to the SUBSTRING function. Through research I have no clue as what I need to do, or where to look. The package runs without error when I execute the package itself. Any help is greatly appreciated. Thanks, Lori
Hi i got errro mess "Invalid length parameter passed to the substring function" from this below. Anyone how can give me a hint what cause this, and how i can solve it? if i remove whats whitin thoose [] it works, i dont use [] in the code :) colums: VLF_InfectionDestination is nvarchar 254
SELECT TOP 10 tb_AVVirusLog.VLF_VirusName, COUNT(tb_AVVirusLog.VLF_VirusName) AS number FROM tb_AVVirusLog INNER JOIN __CustomerMachines002 ON tb_AVVirusLog.CLF_ComputerName = __CustomerMachines002.FalseName WHERE (CONVERT(varchar, tb_AVVirusLog.CLF_LogGenerationTime, 120) BETWEEN @fyear + @fmonth + @fday AND @tyear + @tmonth + @tday) AND (__CustomerMachines002.folder_id = @folderId) [OR (CONVERT(varchar, tb_AVVirusLog.CLF_LogGenerationTime, 120) BETWEEN @fyear + @fmonth + @fday AND @tyear + @tmonth + @tday) AND (tb_AVVirusLog.VLF_InfectionDestination LIKE N'%@%')] GROUP BY tb_AVVirusLog.VLF_VirusName HAVING (NOT (tb_AVVirusLog.VLF_VirusName LIKE N'cookie')) ORDER BY COUNT(tb_AVVirusLog.VLF_VirusName) DESC
An application I developed normally works great, but it seems that when processing a certian record (and none of the others so far), SQL Server throws this error: "Invalid length parameter passed to the substring function."
Private Sub setControls(ByVal dr As SqlDataReader) If (dr.Read()) Then '<--*******problem line*******
The SqlDataReader (orderReader) doesn't blow up or anything until I call .Read() (and, as mentioned, this problem only occurs for one order). What could be happening here?
What the difference is, if any between the following two ways of creating a table with a column that has a default value (see the 'Deleted' column):
CREATE TABLE [dbo].[Customer] ( [ID] INT IDENTITY(1,1) NOT NULL, [Name] NVARCHAR(100) NOT NULL, [DELETED] BIT NOT NULL DEFAULT 0)And
CREATE TABLE [dbo].[Customer] ( [ID] INT IDENTITY(1,1) NOT NULL, [Name] NVARCHAR(100) NOT NULL, [DELETED] BIT CONSTRAINT [DF_Customer_Deleted] DEFAULT((0)) NOT NULL)
And is there any argument for doing one over the other?
I have got a stored procedure with a parameter on a boolean field. When the parameter is passed down I must retrieve records according to the boolean value. That is if it is true retrieving records with the true in that field, if it is false retrieving records with false. And if no parameters is passed down just retrieve all records either with true or false. I have done something similar with integer fields and it works but in that case I wasn't able to make it working.
See at the following sample I am expecting when executing the 3rd time my below to return 4 and it returns 0
CREATE TABLE #temp ( Id int, Name char(30), YesNo bit ) INSERT INTO #temp (Id, Name,YesNo) Select 1, 'a', 0 INSERT INTO #temp (Id, Name,YesNo)
I have created an SSIS package where I have added an Execute SQL Task to run an existing stored procedure in my SQL database.
General Tab:
Result Set: None Connection Type: OLE DB SourceType: Direct Input IsQueryStoredProcedure: False (this is greyed out and cannot be changed) Bypass Prepare: True SQL Statement: EXEC FL_CUSTOM_sp_ml_location_load ?, ?;
Parameter Mapping:
Variable Name Direction Data Type Prmtr Name Prmtr Size User: system_cd Input NVARCHAR 0 10 User: location_type_cd Input NVARCHAR 1 10
Variables:
location_type_cd - Data type - string; Value - Store (this is static) system_cd - Data type - string - ?????? The system code changes based on the system field for each record in the load table
STORED PROCEDURE: The stored procedure takes data from a load table and inserts it into another table:
Stored procedure variables: ALTER PROCEDURE [dbo].[sp_ml_location_load] (@system_cd nvarchar(10), @location_type_cd nvarchar(10)) AS BEGIN .....................
This is an example of what I want to accomplish: I need to be able to group all system 3 records, then pass 3 as the parameter for system_cd, run the stored procedure for those records, then group all system 18 records, then pass 18 as the parameter for system_cd, run the stored procedure for those records and keep doing this for each different system in the table until all records are processed.
I am not sure how or if it can be done to pass the system parameter to the stored procedure based on the system # in the sys field of the data.
I have a scalar function, which calculates the similarity of two strings. I use the following query, to compare the entries of one table against the value 'Test' and return the entries, which have a value > 50:
;WITH cte1 AS ( SELECT b.FirstName, (SELECT fn_similarity('Test', b.FirstName)) AS [Value], b.LastName FROM [AdventureWorks2012].[Person].[Person] b )
SELECT * FROM cte1 WHERE [Value] > 50.00 ORDER BY [Value] DESC
Now I want to use this query against the first 50 entries of the [Person] table, so that the resultset includes all the values of the first 50 persons and the entries, which are similar to them.
At the moment I use a WHILE-loop and write the five single resultsets in a temporary table. Is there another way / a better way, maybe via a join?
I have setup CDC on 50 tables and then in one SP I’m calling all cdc function like below issue is I'm getting error “an insufficient number of arguments were supplied for the procedure or function cdc.fn_cdc_get_all_changes ... .” as error is not mentioning for which capture instance I'm getting this error so not able to find.
select * from cdc.fn_cdc_get_all_changes_<capture_instance>(@from_lsn, @to_lsn, 'all update old') union all select * from cdc.fn_cdc_get_all_changes_<capture_instance>(@from_lsn, @to_lsn, 'all update old') union all select * from cdc.fn_cdc_get_all_changes_<capture_instance>(@from_lsn, @to_lsn, 'all update old') union all select * from cdc.fn_cdc_get_all_changes_<capture_instance>(@from_lsn, @to_lsn, 'all update old') union all select * from cdc.fn_cdc_get_all_changes_<capture_instance>(@from_lsn, @to_lsn, 'all update old') union all select * from cdc.fn_cdc_get_all_changes_<capture_instance>(@from_lsn, @to_lsn, 'all update old') union all select * from cdc.fn_cdc_get_all_changes_<capture_instance>(@from_lsn, @to_lsn, 'all update old')
I have an existing function and need to alter function to give result of the values multipiled until its parent is reached.need two seperate functions for city and amt columns..need to also display the parent-description
I have the following query that supposes to merge multiple result in a single one and put it into a temporary table:
SELECT DISTINCT [AlphaExtension], STUFF((SELECT A.[NoteText] + '< BR />' FROM #temp A WHERE A.[AlphaExtension]=B.[AlphaExtension] FOR XML PATH('')),1,1,'') As [NoteText] FROM #temp B GROUP BY [AlphaExtension], [NoteText]
It is working fine unless by a simple detail. If you look at the second line of the query you will see that I am stuffing together a < BR /> tag (break line) because the contents of the field is going to be spitted directly to the screen and I want that the multiple results be displayed in different lines.
OK, the issue is that it is stuffing & lt ; BR / & gt ; instead < BR /> and therefore the browser is displaying the tag instead to break a line.
I am having staging table with separted by '¯'.I want to split the data with given number .i have given 31 means my main table have 31 column. it should handle the less or more column.
I have a function that accespts a string and a delimeter returns the results in a temp table. I am using the funtion for one of the columns in my view that needs be to split and display the column into different columns. The view takes for ever to run and finally it doesn't split and doesn't display in the column.
Function: ----------------------------------- ALTER FUNCTION [dbo].[func_Split] ( @DelimitedString varchar(8000),
[Code].....
Not sure what I am missing in the above view why it doesn't split the string.
I have a question regarding windowing functions. I have a sales order table with the columns "orderid", "customerid", "order_date" and "amount". I use the following query to get the amount of every customer as a additional column:
Select customerid, orderid, order_date, amount, SUM(amount) OVER (PARTITION BY customerid) FROM sales_orders
My question is if there is a good way to add another column, which includes the SUM(amount) of the customerid, where the order_date > 2012-01-15 , something like this:
Select customerid, orderid, order_date, amount, SUM(amount) OVER (PARTITION BY customerid), SUM(amount) OVER (PARTITION BY customerid WHERE order_date > 2012-01-15) FROM sales_orders
I know, this is not a valid method, so do you know a way to achieve this? Can I maybe use CROSS APPLY or something like this? I know that I could use a subquery to get this, but is there maybe a way / a better way via window functions?
In t-sql 2012, the followinng sql works fine when I declare @reportID.
IF @reportID <> 0 BEGIN SELECT 'Students report 1' AS selectRptName, 1 AS rptNumValue UNION SELECT 'Students report 2', 2 UNION
[code]...
However when I use the sql above in an ssrs 2012 report, the query does not work since the @reportID parameter can have 0, 1, or up to 200 values.Thus I am thinking of calling the following following function to split out the parameter values:
FUNCTION [dbo].[fn_splitString] ( @listString VARCHAR(MAX) ) RETURNS TABLE WITH SCHEMABINDING AS RETURN ( SELECT SUBSTRING(l.listString, sn.Num + 1, CHARINDEX(',', l.listString, sn.Num + 1) - sn.Num - 1) _id FROM (SELECT ',' + LTRIM(RTRIM(@listString)) + ',' AS listString) l CROSS JOIN dbo.sequenceNumbers sn WHERE sn.Num < LEN(l.listString) AND SUBSTRING(l.listString, sn.Num, 1) = ',' )
GO
how to remove the @reportID <> 0 t-sql above and replace by calling the fn_splitString function?
