Using Newly Created Column For Doing Further Calculation

Apr 12, 2015

I am trying to create a simple query like this -

SELECT
Column_1,
Column_2,
Column_3,
10*Column_1 AS Column_4,
10*Column_2 AS Column_5,
-- I am not being able to understand how to do this particular step Column_1*Column_5 As Column_6
FROM Table_1

First 3 Columns are available within the Original Table_1
The Column_4 and Column_5 have been created by me, by doing some Calculations related to the original columns.

Now, when I try to do FURTHER CALCULATION on these newly created columns, then SQL Server does not allows that.

I was hoping that I will be able to use the Newly Created Columns 4 and 5 within this same query to do further more calculations, but that does not seems to be the case, or am I doing something wrong here ?

If I have to create a new column by the name of Column_6, which is actually a multiplication of Original Column_1 and Newly Created Column_5 "I tried this - Column_1*Column_5 As Column_6", then what is the possible solution for me ?

I have tried to present my problem in the simplest possible manner. The actual query has many original columns from Table_1 and many Calculated columns that are created by me.And now I have to do various calculations that involve making use of both these type of columns.

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Using Newly Created Column For Doing Further Calculations In SAME Query

Apr 12, 2015

I am trying to create a simple query like this -

SELECT
Column_1,
Column_2,
Column_3,
10*Column_1 AS Column_4,
10*Column_2 AS Column_5,

-- I am not being able to understand how to do this particular step Column_1*Column_5 As Column_6

FROM Table_1

First 3 Columns are available within the Original Table_1

The Column_4 and Column_5 have been created by me, by doing some Calculations related to the original columns.

Now, when I try to do FURTHER CALCULATION on these newly created columns, then SQL Server does not allows that.

I was hoping that I will be able to use the Newly Created Columns 4 and 5 within this same query to do further more calculations, but that does not seems to be the case?

If I have to create a new column by the name of Column_6, which is actually a multiplication of Original Column_1 and Newly Created Column_5 "I tried this - Column_1*Column_5 As Column_6", then what is the possible solution?

I have tried to present my problem in the simplest possible manner. The actual query has many original columns from Table_1 and many Calculated columns that are created by me. And now I have to do various calculations that involve making use of both these type of columns.

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SQL Server 2014 :: Using Newly Created Column For Doing Further Calculations In SAME Query

Apr 12, 2015

I am new to SQL Programming. I am learning the basics. I am trying to create a simple query like this -

SELECT
Column_1,
Column_2,
Column_3,
10*Column_1 AS Column_4,
10*Column_2 AS Column_5,

-- I am not being able to understand how to do this particular step Column_1*Column_5 As Column_6

FROM Table_1
First 3 Columns are available within the Original Table_1
The Column_4 and Column_5 have been created by me, by doing some Calculations related to the original columns.

Now, when I try to do FURTHER CALCULATION on these newly created columns, then SQL Server does not allows that.

I was hoping that I will be able to use the Newly Created Columns 4 and 5 within this same query to do further more calculations, but that does not seems to be the case, or am I doing something wrong here ?

If I have to create a new column by the name of Column_6, which is actually a multiplication of Original Column_1 and Newly Created Column_5 "I tried this - Column_1*Column_5 As Column_6", then what is the possible solution for me ?

I have tried to present my problem in the simplest possible manner. The actual query has many original columns from Table_1 and many Calculated columns that are created by me. And now I have to do various calculations that involve making use of both these type of columns.

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Jul 25, 2015

I have a four tables called plandescription, plandetail and analysisdetail. The table plandescription has the columns DetailQuestionID which is the primary and identity column and a QuestionDescription column.

The table plandetail consists of the column PlanDetailID which the primary and identity column, DetailQuestionID which is the foreign key attribute of plandescription table and a planID column.

The third table analysisdetail consists of a analysisID which the primary and identity column, PlanDetailID which is the foreign key attribute of plandetail table and a scenario.

Below is the schema of the three tables

I have a two web form that will insert, update and delete data into these three tables in a two transaction. One web form will perform CRUD operations in plandescription and plandetail table. When the user inserts QuestionDescription and planid in this web form, I will insert the QuestionDescription Value in the plandescription table and will generate a DetailQuestionID value and this value is fed to the plandetail table with the planid. Here I will generate a PlanDetailID.

Once this transaction is done, I will show the second web form in which the user enters the scenario and this will be mapped with the plandescription using the PlanDetailID.

This schema cannot be changes as this is the client requirement. When I insert values I don’t have any problem. However when I update existing data, I need to delete existing PlanDetailID in the plandetail table and recreate PlanDetailID data for that DetailQuestionID and planID. This is because, the user will be adding or deleting a planID associated with the QuestionDescription.

Once I recreate PlanDetailID for that DetailQuestionID and planID, I need to update the old PlanDetailID with the new PlanDetailID in the third table analysisdetail for the associated analysisID.

I created a #Temp table called #DetailTable to insert the values analysisID, planid and old PlanDetailID and new PlanDetailID so that I can have them in update statement once I delete the data from plandetail table for that PlanDetailID.

Then I deleted the plandetailid from the plandetail table and recreate PlanDetailID for that DetailQuestionID. During my recreation I fetched the new PlanDetailID’s created into another temp table called #InsertedRows

After this I am running a while loop to update the temp table #DetailTable with the newly created PlanDetailID for the appropriate planID’s. The problem is here. When I have the same number of planID’s for example 2 planID’s 1,2 I will have only two old PlanDetailID and new PlanDetailID for that planID and analysisID.But When I add a new PlanID or remove a existing planID I am getting null value for that newly added or deleted planID. This is affecting my update statement of analysisdetail table as PlanDetailID cannot be null.

I tried to remove the Null value from the #DetailTable by running the update statement of analysis detail in a while loop however its not working.

DECLARE @categoryid INT = 8
DECLARE @DetailQuestionID INT = 1380
/*------- I need the query to run for the below three data.
Here i'm updating my planids that already exists in my database*/
DECLARE @planids VARCHAR(MAX) = '2,4,5'

[code].....

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For some reason whenever I try to run thes jobs it fails. Within this Job I have three steps. For each step I am using the same job but with a different package name. I have a trusted connection so my command should work just fine. What am I doing wrong. Can some please explain this process.

Thanks

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Hi

I had DTS the Northwind sample database from SqlServer 2000 to 2005. It's went ok and no errors. Then, I created a SP named upGetCustomer, bascially it queries the Customers table and list some of it's fields and order by CustomerId,CustomerName, Country decrementally. SP is so simple and has no errors.

Then, I created a SqlServer project in VS2005 using C#. Add store procedure class as below,
using System;
using System.Data;
using System.Data.SqlClient;
using System.Data.SqlTypes;
using Microsoft.SqlServer.Server;
public partial class StoredProcedures
{
[Microsoft.SqlServer.Server.SqlProcedure]
public static void Customers(string customerid)
{
using (SqlConnection sqlConn =
new SqlConnection("context connection=true"))
{
sqlConn.Open();
SqlPipe sqlPipe = SqlContext.Pipe;
SqlParameter param = new SqlParameter("@custId", SqlDbType.VarChar, 5);
param.Value = customerid;
SqlCommand sqlCmd = new SqlCommand();
sqlCmd.CommandType = CommandType.StoredProcedure;
sqlCmd.CommandText = "upGetCustomer";
sqlCmd.Parameters.Add(param);
SqlDataReader rdr = sqlCmd.ExecuteReader();
SqlContext.Pipe.Send(rdr);
}
}

I had taken method of created SQLCLR from source in Microsoft website, but coding is mine, and hopes it is correct. I used SqlConnection string as 'context connection=true' which I still not quite sure what does it means, hopes it mean current connection I am using on my Windows authentication.

The project did compiled & deployed OK on the VS2005 side.

The problem is that when I tried to locate the assembly on the Sql Server 2005, but can't find it anywhere on Sql Server.

I did try complied and deloyed again, it keeps saying there is an error in deployment as customers assembly is already exist on the database. I then, tried to remove this assembly on the database using SQL script, drop assembly customers in the Northwind database but got error saying it does not exist. So where is it???

Please help...

Thank you









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I have an example from AdventureWorksDW since the data is very accessible. I can safely create EMP_TENURE and PTO_REMAINING is this select statement. I would then need to create a new select statement to define 'BONUS' and then another select statement to define 'NEW_COL1' and so on.

Im still pretty new at SQL and am trying to learn how to complete such a task using subqueries or CTE.

SELECT
NAME = [LastName] + ',' + [FirstName]
,HireDate
,Title
,DepartmentName
,BaseRate
,VacationHours
,SickLeaveHours

[Code] ....

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Should I store the template table under the system tables folder?

How do I copy the template table and create a new table from this template?

Thanks you
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Hi!
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I then close that connection and try to open a new connection using my newly created database. I use integrated authentication in both cases. However, I get the following error: Cannot open database "MYDATABASE" requested by the login. The login failed.Login failed for user 'DOMAINNAMEusername'.System.Data.SqlClient.SqlException: Cannot open database "MYDATABASE" requested by the login. The login failed.

I don't get this error all the time. I tried to run my code many times and it some times work. But in some cases it doesn't. The database is always created but some times I cannot connect to it. But again, if I wait a little and try again with the same database, the connection is made.

I know that my connections are opened and closed normally and they don't remain open. So I don't believe I reach the maximum number of available connections.

I also sometimes get this exception : A connection was successfully established with the server, but then an
error occurred during the login process. (provider: Shared Memory
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Any clue?

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See screenshot here





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Use Newly Created Table In Data Flow Task

Jul 20, 2006

Hello dear Forum,

I guess this should be rather simple to answer but i just don't get how to do this. I just want to import some data from an Access mdb file into a SQL Server 2005 Database.

As I dont want to create all tables in Sql Server 2005 beforehand i'd like to create them out of my SSIS Package. Therefore i use the 'Execute SQL Task' in the control flow before stepping into the dataflow where only a oledb-source and an oledb-destination exist...

VERY simple... My problem is, that i can't select the table from the selectionlist in the oledb-destination because it does not exist before executing the package...

If i create the table by hand just to be able to select it, that does not help. because if everything is set up and then i delete the table (because it will be created by the package anyway) an error occurs before executing the package - in the validation phase:

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Can't i create tables on the fly which i use then in my dataflow tasks?

Kind regards,

Wolfgang

Hello dear Forum,

I guess this should be rather simple to answer but i just don't get how to do this. I just want to import some data from an Access mdb file into a SQL Server 2005 Database.

As I dont want to create all tables in Sql Server 2005 beforehand i'd like to create them out of my SSIS Package. Therefore i use the 'Execute SQL Task' in the control flow before stepping into the dataflow where only a oledb-source and an oledb-destination exist...

VERY simple... My problem is, that i can't select the table from the selectionlist in the oledb-destination because it does not exist before executing the package...

If i create the table by hand just to be able to select it, that does not help. because if everything is set up and then i delete the table (because it will be created by the package anyway) an error occurs before executing the package - in the validation phase:

Package Validation Error: "Invalid object name 'myToBeCreatedTable'".

Can't i create tables on the fly which i use then in my dataflow tasks?

Kind regards,

Wolfgang

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Using Newly Created Table In Data Flow Task

Jul 20, 2006

Hello dear Forum,

I guess this should be rather simple to answer but i just don't get how to do this. I just want to import some data from an Access mdb file into a SQL Server 2005 Database.

As I dont want to create all tables in Sql Server 2005 beforehand i'd like to create them out of my SSIS Package. Therefore i use the 'Execute SQL Task' in the control flow before stepping into the dataflow where only a oledb-source and an oledb-destination exist...

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If i create the table by hand just to be able to select it, that does not help. because if everything is set up and then i delete the table (because it will be created by the package anyway) an error occurs before executing the package - in the validation phase:

Package Validation Error: "Invalid object name 'myToBeCreatedTable'".

Can't i create tables on the fly which i use then in my dataflow tasks?

Kind regards,

Wolfgang

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I have a TableA where data get inserted from Excel(IMPORT/EXPORT wizard)

TableA;
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1                   2014-06-17 17:28:21.190          
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4                  2015-08-17 17:28:21.190          
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Case
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[Code] .....

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Hi all,

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2396 1/07/08 4000 10/12/07 3600
7650 1/07/08 1100 07/07/06 1200
.
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[Code] .....

---OUTPUT
--=======

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[code]....

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