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Sunday, November 30, 2014

Table as Input Parameter of Stored Procedure using Table-Valued Parameters in SQL

Table as Input Parameter of Stored Procedure using Table-Valued Parameters in SQL

Table-Valued Parameters are used as Input parameter of stored procedure, For that first we need to create Table type.Table Type are best used when we want to insert multiple records in a table using a stored procedure table valued Parameter and executing the procedure once.

Table valued Parameters  is a new parameter type in SQL SERVER 2008 that provides efficient way of passing the table type variable than using the temporary table.

Below is the example showing how to take table as Input Parameter of Stored Procedure using table valued Parameter in SQL

In order to explain this I will create a table, Table type and a Stored Procedure with table valued parameter.

--table Script
create table Emp
(
 Empid nvarchar(30),
empName nvarchar(30)
)


--Script to create a Table Type with Name Employee 
Create type Employee as Table
( Empid nvarchar(30),
empName nvarchar(30)
)

Note: The scope of Table Type is limited to Batch only and Input parameter of procedure should be read only when using Table Type as Input Parameter of Stored Procedure.

Now we will create a stored Procedure and we will define input parameter of stored procedure
as table type

--Script to  create a procedure with Input parameter table type
create procedure proc_x
 @x as employee readonly
as 
begin 
insert into Emp 
select * from @x;--this will insert record from table variable @x into Emp table 
end


Above Procedure will take table variable @x as input type which is using table type Employee 

To execute this Procedure we will declare a variable and will pass the variable to insert multiple rows to Emp table in a single execution of Procedure as below.


Declare @x as Employee 
--will insert all values in table varirable @x using insert script which will insert all record into Emp table
insert into @x values('1','rack'),('2','mack'),('3','Rex'),('4','Peter')

--Executing Procedure
Exec   proc_x @x

Verify Output

select * from Emp 

Output

Empid empName
1 rack
2 mack
3 Rex
4 Peter









Friday, October 17, 2014

Operand data type nvarchar is invalid for subtract operator.

Operand data type nvarchar is invalid for subtract operator.

Issue- In one of the SQL Groups forum one of the user asked a question that we want the diff of Max value of one column and min value of other column

 Difference=Max(Column1)-Min(Column2)

Below is the user Original question

Question-i am facing a small problem .kindly help me
select min(low) as low, max(high) as high from <table_name>
now i want to find the difference between two results 
i used 
select (select max(high)from <table_name>)-(select min(low)from <table_name>) as diff
This is not working ... kindly help me
Table screenshot


Solution-So for this I created a test script with same table structure so below is the script with output

create table x1
(name nvarchar(100),
high float,
low float
)

insert into x1 values ('xyz', 50.5, 48),('xyz', 60.2 ,50.3),('xyz', 55, 45),('xyz' ,62.9 ,47.6)



select max(high)MaxHigh,min(low)MinLow ,max(high)-min(low) differences from x


Output

MaxHigh           MinLow differences
62.9                  45                     17.9

After giving the Query to him he informed me that he is getting below error

Msg 8117, Level 16, State 1, Line 1
Operand data type nvarchar is invalid for subtract operator.

 In case if you are applying multiplication then you will get the below error.

Msg 8117, Level 16, State 1, Line 1

Operand data type nvarchar is invalid for multiply operator

In case if you are applying divide then you will get the below error.

Msg 8117, Level 16, State 1, Line 1

Operand data type nvarchar is invalid for divide operator.


These Errors means columns are not int or float type they are varchar type so i casted them into float to give him result without any error.

Solution with casting the varchar field to float.

select max( cast(high as float))-min(cast(low as float)) diff from x

Output

diff
17.9

or as per his query

select (select max( cast(high as float))from x)-(select min(cast(low as float)) from x) as diff

Output

diff
17.9


NOTE: Always keep in mind that applying any arithmetic operator or function in any varchar field you need to first cast or convert it into int, float or decimal. 


Monday, September 29, 2014

Unable to retrieve list of databases. Reason: Failed to connect to the server. Reason: The 'SQLNCLI11' provider is not registered on the local machine.

Unable to retrieve list of databases. Reason: Failed to connect to the server. Reason: The 'SQLNCLI11' provider is not registered on the local machine.

Issue: while working on a Power Pivot Report we opened a power pivot report in Client Machine to as we need to change the Database Name of the Report.

Issue Description: After opening the Power Pivot window when we tried to connect to DB Server we got the below Error.



 Like in Screenshot the error indicates that SQLNClLI11 is not registered in your local machine.
You can also got an error if you are using sql 2008 then the Error will be SQLNCLI10 is not Registered on your local machine like below.



So below are link you can download the SQSQL Nativelient 10 and 11.

Download Native clin10 for SQL 2008 from below Link into your client System.

Download Native client11 for SQL 2012 from below link to Client System

Once you will download the appropriate Native clients as per your System i.e 32 or 64 bit you will be able to connect to DB Successfully.
In case after Installing the native client also you were still getting the Same Issues.

Then the  Best solution is 

Go to Advanced Section in the PowerPivot Data connection Window.
Providers- Change the Provider from 10.0 or 11.0 to Microsoft Ole Db provider for SQL Server
Test Connection
Ok


Now you will notice that you are able to connect to your database without installing Native clients also.



Tuesday, September 23, 2014

Sorting Months Name by calendar Order in Powerpivot Slicer

Sorting Months Name by calendar Order in Powerpivot Slicer

 When we add a column containing Month Name in Powerpivot Slicer fields it sort the data alphabetically like first (April, August, etc.) but we need the Month Name to be sorted Naturally
Like January, February, March….

There is no direct way to sort this you need to do workaround for slicers.

I am giving Example where I was using month Names from SQL query.
Sample Query that will fetch All MonthNames from Master database view spt_Values.

SELECT number, DATENAME(MONTH, '2014-' + CAST(number as varchar(2)) + '-1') monthname
FROM master..spt_values
WHERE Type = 'P' and number between 1 and 12
ORDER BY Number

We will insert this record in a temp table so that we can write a query to temp table
SELECT number, DATENAME(MONTH, '2014-' + CAST(number as varchar(2)) + '-1') monthname
 into #temp from  master.dbo.spt_values
WHERE Type = 'P' and number between 1 and 12
ORDER BY Number

Select * from #temp
Output
number            monthname
1          January
2          February
3          March
4          April
5          May
6          June
7          July
8          August
9          September
10         October
11         November
12         December

So if you will create a Slicer based on this Data you can produce the Issue you will have slicer sorted in alphabetical order like below.
Issue Screenshot



Solution: In order to sort in Natural Order you need to add a Prefix before your month name this is the only workaround that you can do with Slicer.

Note: Don't forget to add zero before 1,2….9 otherwise it will not sort your slicer as required.

So here is the SQL code to add prefix.
select case [MonthName] when 'January' then '01January'
when 'February' then '02February'

 when 'March' then '03March'
when 'April' then '04April'
when 'May' then '05May'
when 'June' then  '06June'
when 'July' then  '07July'
when 'August' then '08August'
when 'September' then '09September'
when 'October' then '10October'
when 'November' then '11November'
when 'December' then  '12December'
end [MonthName]
from #temp


Refresh your Report having MonthName Slicer and Sort from A to Z.The Slicer will get sorted in a Natural Sort from January to December as below.



Note : If you don't want to change anything in your sql code you can achieve the same result by following msdn blog-http://blogs.msdn.com/b/analysisservices/archive/2010/04/21/sorting-month-by-natural-sort-order.aspx 

Wednesday, August 27, 2014

SSRS Report Issue- Toggle Item Visibility default as Expanded with + sign

Issue- Toggled Item Text Box Sign in Report while giving Default as expanded showing + Sign instead of -.

Issue Description-We Created a SSRS Report which used to show Project Name and Employee assigned to the Projects .Default Nature of Report was expanded all but while previewing the Report the toggle sign appears as + sign in below Screenshot.

Test Report Highlighting Issue Screenshot.



Issue Solution. To fix this Issue below are the steps.

1. Select  your toggle Item (i.e. Text box  ) which is showing the + Sign.
           2.    Go to Properties of Selected Text box (Right Hand Side Properties ).
3.  Change the IntialToggleState Property from False to True as in below Screenshot.




4.       Preview the Report .Now on Default Expanded all  Report will show the correct Sign i.e (-).





 



Monday, August 25, 2014

Converting Column Values as Comma Separated String based on condition in SQL

Requirement- Our Requirement was Employee which are working on same Projects OR Employee who are assigned to same projects should come as a comma separated string in a single row for each Project from Project table  like below..

Output Required

ProjectName           name
Project1                rakesh, mukesh, sukesh
Project2                ajit, surjit


Below is test Project  table structure.

create table Projects
(Projectname varchar(200),Empname varchar(200)
)

insert into Projects values ('Project1','rakesh'),('Project1','mukesh'),('Project1','sukesh'),('Project2','ajit'),('Project2','surjit')

select * from Projects

Projectname      Empname
Project1            rakesh
Project1            mukesh
Project1            sukesh
Project2            ajit
Project2            surjit

In the above Projects table

For Project1-Employee assigned-Rakesh,  Mukesh,  Sukesh
For Project2 –Employee assigned-Ajit, Surjit

Each Row in Project table is showing Project Name and employee name assigned to that project.

We want the output like all employee names assigned to same project  should come as comma separated value as an string in a single row for each project.

So below is the Script  that convert column values as comma separated values

--create table Projects
--(Projectname varchar(200),Empname varchar(200)
--)

--
--insert into Projects values ('Project1','rakesh'),('Project1','mukesh'),('Project1','sukesh'),('Project2','ajit'),('Project2','surjit')

--Below script will show column values as comma separated string based on condition

declare @ProjectName nvarchar(100)
declare @name nvarchar(200)
declare @newProjectName nvarchar(100)
declare @newname nvarchar(100)
set @newProjectName='0'
set @newname ='0'

create table #tbl (ProjectName varchar(200) ,name varchar(100))

declare C cursor  for select Projectname,Empname from Projects
open  c
fetch next from c into @ProjectName,@name
set @newProjectName=@ProjectName
while @@FETCH_STATUS =0
begin
if @newProjectName= @ProjectName
begin
  if (@newname ='0')
 begin
   set @newname =@name
 end
   else
   begin
   set @newname =@newname  + ', '+ @name
end
end

if @newProjectName<>@ProjectName
begin
insert into #tbl values(@newProjectName,@newname )
set @newProjectName=@ProjectName
set @newname =@name

end
fetch next from c into @ProjectName,@name
end

if @newProjectName=@ProjectName
begin
insert into #tbl values(@newProjectName,@newname )

end

close c
deallocate c
select * from #tbl
drop Table #tbl


Script Output 

ProjectName                 Name
Project1                        rakesh, mukesh, sukesh
Project2                        ajit, surjit




Saturday, July 26, 2014

We cannot locate a server to load the workbook data model

We cannot locate a server to load the workbook data model

Issue-The Error was coming in SharePoint 2013 site when refreshing or clicking on any slicer of  the Power table Report in excel 2013 workbook.

Issue Cause-This issue occurs because the Analysis Services instance has not been configured in the Central Administration site.

Issue Solutions-Restart your SQL Server Analysis Server (PowerPivot) and Reset the IIS.


In most of the case above will fix your above Issue.

If in case the above method will not fix the Issue then configure the Excel Services service application on the SharePoint server. To do this, follow these steps:

1.       In the Application Management  section of the Central Administration home page, click Manage service applications.
2.       On the Manage Service Applications page, click the Excel Services service application that you want to configure.
3.       On the Manage Excel Services page, click Data Model.
4.       Click Add Server.
5.       In the Server Name box, type the name of the Analysis Services instance that you want to add.
6.       Click OK.