Dynamic Fields In SQL

Dec 31, 2003

I want to make my table have dynamic fields. For example if my table includes 2 fields. ID & name. I want the user to be able to add another field (if he needs) with the datatype he determines and the field name. I want then to alter the table and add that field.ok
using alter statement is not required cause it mat cause lose of data if error occurs in the middle of the trnsaction.
any suggessions???
Thnak :)

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Dynamic Table Name And Fields

Jan 13, 2007

I need to get the field values of a table (name will be dynamic).Then assign those values to properties in a class.Let's say I will get the table name dynamically.dim tblName as string = "tablea"The 2 tables can each have 25 fields or so.I need a way to select the amt and email field values from tblName.  Without saying "select job_amt, job_email from ...Is there someway to get the values based on the column name.  So if the column name has amt and email, then give me those values.Maybe loop through the datatable - then for each column -- if col.ColumnName.IndexOf("Amt") = 0 or col.ColumnName.IndexOf("email") = 0 thenthen drop  that column from the datatable.ex of table structure<u>tablea</u>job_idjob_amtjob_email<u>tableb</u>dance_idamt_dancedance_email

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Exporting Data With Dynamic Fields

Jan 12, 2005

Hi,

I have one Query Builder application where user creates queries and generates output with required fields.Then user can export the same to excel (Using farPointSpread properties)
But if no. of records goes beyond 10K it goes too slow or even user machine hangs up. I want to give proper export facility. Can it be given using DTS?

I tried DTS (.vbs) file. but for random field selection it did not work.

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SQL Statement For Querying Data With Dynamic Fields

Sep 19, 2006

I am working on a project in which a customer wants to be able to list and search their inventory and display the items in a table/grid on a web page.Each item in their inventory has a set of properties - for example, manufacturer, price, serial number, name, etc.  The complicated part is that they want an admin to be able to modify/add/delete the set of properties.  So for example, they could add the attribute "size."   Given that, I think what is needed is 3 tables - one to store the set of properties schema, one for the items, and one to store the actual properties for each item.  I know i COULD use alter table statements to add and delete columns, but that doesn't seem like the "right" solution.I would like to be able to write a query such that each row returns the item and all its properties - then i can easily bind to a datagrid.  However, what would the query be to do this?  I also need to be able to allow the customer to query for items with certain properties - i imagine the sql for that to be similar to this:SELECT * FROM items d WHERE d.Id IN(SELECT a.ItemId FROM attributes a WHERE a.Name = "Manufacturer" AND a.Value = "Samsung") AND d.Id IN(SELECT a.ItemId FROM attributes a WHERE a.Name = "SerialNumber" AND a.Value = "3223")

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Dynamic Filedlength Of Varchar Fields In Source

Nov 21, 2006

I'm using SSIS to import data from a table (SQL) containing varchar fields. The problem is, that those varchar fields are changing over time (sometimes shrinking and sometimes expanding). I.e. from varchar(16) to varchar(20).

When I create my SSIS package, the package seem to store information about the length of each source-field. At runtime, if the field-length is larger then what the package expects an error is thown.

Is there anyway around this problem?

Oh, yeah... My destination fields are a lot wider then the source fields, so the problem is not that the varchar values doesn't fit in my destination table, but that the package expects the source to be smaller...

Regards Andreas

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May 21, 2015

I have a SP like this:

ALTER PROCEDURE [dbo].[ReportGateWay]
(
@ISO bigint= 0,
@Gateway bigint= 0
)
AS
BEGIN
DECLARE @SQL nvarchar(max)

[Code] ....

I need to invoke this in SSRS. The problem is that when on creating dataset for this, I get an error which read:

You must have atleast one field for your dataset

What can be done in this case?

Here is the SQL Fiddle: [URL] ....

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Dynamic Data Set Based On Calculated Fields

Mar 26, 2008



Hi,

I have three data sets. Data Set A is bound to my table in my report. There are also Data Sets B and C. All three data sets have the identical columns. I have setup data set A so that all of its fields are "Calculated". The calculation for each field will either pick the field from data set B or data set C based upon a parameter called BorC. So the calcualted fields in data set A look like the following:


=iif(Parameters!BorC.Value, First(Fields!MyField.Value, "dataset_B"), First(Fields!MyField.Value, "dataset_C"))

Problem is when I run the report I get internal error. Is it possible to populate one data set from the fields of another data set? If so is there some trick to doing this? Stripping this example down to one column in each of the data sets, and then just directly setting data set A from either B or C still gives me the same error. SO I set the one field in data set A to the following and it still doesn't work:

=First(Fields!MyField.Value, "dataset_B")

OR

=First(Fields!MyField.Value, "dataset_C")

This leads me to believe there is some fundamental problem with using another data set in a Calculated field. Since I think I have done this before I am convinced I am doing sommething wrong.

Any advice you have for me would be greatly appreciated!

Thanks.

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Jan 28, 2008


I have just started using SQL Server reporting services and am stuck with creating subreports.

I have a added a sub report to the main report. When I right click on the sub report, go to properties -> Parameters, and click on the dropdown for Parameter Value, I see all Sum and Count fields but not the data fields.

For example, In the dropdownlist for the Parameter value, I see Sum(Fields!TASK_ID.Value, "AppTest"), Count(Fields!TASK_NAME.Value, "CammpTest") but not Fields!TASK_NAME.Value, Fields!TASK_ID.Value which are the fields retrieved from the dataset assigned to the subreport.

When I manually change the parameter value to Fields!TASK_ID.Value, and try to preview the report, I get Error: Subreport could not be shown. I have no idea what the underlying issue is but am guessing that it's because the field - Fields!TASK_ID.Value is not in the dropdown but am trying to link the main report and sub report with this field.

Am I missing something here? Any help is appreciated.

Thanks,
Sirisha

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Feb 20, 2008

How can I create a Table whose one field will be 'tableid INT IDENTITY(1,1)' and other fields will be the fields from the table "ashu".
can this be possible in SQL Server without explicitly writing the"ashu" table's fields name.

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Jan 26, 2008

sir

I have got this error message to establish connction with recordset vb .net, Can you please rectify this

Too many arguments to 'Public Overridable ReadOnly Default Property Fields() As ADODB.Fields'

my code like this


rs = New ADODB.Recordset

rs.Open("Select * from UserLogin where userid='" & txtUserName.Text & "'", gstrDB, DB.CursorTypeEnum.adOpenStatic)


If txtUserName.Text = rs.Fields.Append(userid) Then


MsgBox("OK", MsgBoxStyle.OKOnly, "Confirmation")

End If


thanks

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Jul 23, 2005

Hello !I'm trying to update one table field with another table searched firstdate record.getting some problem.If anyone have experience similar thing or have any idea about it,please guide.Sample case is given below.Thanks in adv.T.S.Negi--Sample caseDROP TABLE TEST1DROP TABLE TEST2CREATE TABLE TEST1(CUST_CD VARCHAR(10),BOOKING_DATE DATETIME,BOOKPHONE_NO VARCHAR(10))CREATE TABLE TEST2(CUST_CD VARCHAR(10),ENTRY_DATE DATETIME,FIRSTPHONE_NO VARCHAR(10))DELETE FROM TEST1INSERT INTO TEST1 VALUES('C1',GETDATE()+5,'11111111')INSERT INTO TEST1 VALUES('C1',GETDATE()+10,'22222222')INSERT INTO TEST1 VALUES('C1',GETDATE()+15,'44444444')INSERT INTO TEST1 VALUES('C1',GETDATE()+16,'33333333')DELETE FROM TEST2INSERT INTO TEST2 VALUES('C1',GETDATE(),'')INSERT INTO TEST2 VALUES('C1',GETDATE()+2,'')INSERT INTO TEST2 VALUES('C1',GETDATE()+11,'')INSERT INTO TEST2 VALUES('C1',GETDATE()+12,'')--SELECT * FROM TEST1--SELECT * FROM TEST2/*Sample dataTEST1CUST_CD BOOKING_DATE BOOKPHONE_NOC12005-04-08 21:46:47.78011111111C12005-04-13 21:46:47.78022222222C12005-04-18 21:46:47.78044444444C12005-04-19 21:46:47.78033333333TEST2CUST_CD ENTRY_DATE FIRSTPHONE_NOC12005-04-03 21:46:47.800C12005-04-05 21:46:47.800C12005-04-14 21:46:47.800C12005-04-15 21:46:47.800DESIRED RESULTCUST_CD ENTRY_DATE FIRSTPHONE_NOC12005-04-03 21:46:47.80011111111C12005-04-05 21:46:47.80011111111C12005-04-14 21:46:47.80044444444C12005-04-15 21:46:47.80044444444*/

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Jul 2, 2015

I am using MS SQL 2012.  I have a table that contains all the data that I need, but I need to summarize the data and also add up decimal fields while at it.  Then I need a total of those added decimal fields. My data is like this:

I have Providers, a unique ID that Providers will have multiples of, and then decimal fields. Here are my fields:

ID, provider_name, uniq_id, total_spent, total_earned

Here is sample data:

1, Harbor, A07B8, 500.00, 1200.00
2, Harbor, A07B8, 400.00, 800.00
3, Harbor, B01C8, 600.00, 700.00
4, Harbor, B01C8, 300.00, 1100,00
5, LifeLine, L01D8, 700.00, 1300.00
6, LifeLine, L01D8, 200.00, 800.00

I need the results to be just 3 lines:

Harbor, A07B8, 900.00, 2000.00
Harbor, B01C8, 900.00, 1800.00
LifeLine, L01D8, 900.00, 2100.00

But then I would need the totals for the Provider, so:

Harbor, 1800.00, 3800.00

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Jul 20, 2005

I would like to search a table for a phrase, or for a partial phrase,eg on table product - for name or description, or name + descprition.How does one say select * from product where name + description like%phrase%or contains phraseCurrently I can get where name, or where descriotion like %phrase%,eg, where name like krups, or where description like coffee makerBut if I search for where name like %krups coffee maker% i get noresults. krups is in the name field, coffee maker is in thedescription field.Thanks,-M

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Aug 25, 2007

Hi Craig/Kamal,

I got your email address from your web cast. I really enjoyed the web cast and found it to be
very informative.

Our company is planning to use SSIS (VS 2005 / SQL Server 2005). I have a quick question
regarding the product. I have looked for the information on the web, but was not able to find
relevant information.

We are getting Source data from two of our client in the form of Excel Sheet. These Excel sheets
Are generated using reporting services. On examining the excel sheet, I found out that the name
Of the columns contain data itself, so the names are not static such as Jan 2007 Sales, Feb 2007 Sales etc etc.
And even the number of columns are not static. It depends upon the range of date selected by the user.

I wanted to know, if there is a way to import Excel sheet using Integration Services by defining the position
Of column, instead of column name and I am not sure if there is a way for me to import excel with dynamic
Number of columns.

Your help in this respect is highly appreciated!

Thanks,


Hi Anthony, I am glad the Web cast was helpful.

Kamal and I have both moved on to other teams in MSFT and I am a little rusty in that area, though in general dynamic numbers of columns in any format is always tricky. I am just assuming its not feasible for you to try and get the source for SSIS a little closer to home, e.g. rather than using Excel output from Reporting Services, use the same/some form of the query/data source that RS is using.

I suggest you post a question on the SSIS forum on MSDN and you should get some good answers.
http://forums.microsoft.com/msdn/showforum.aspx?forumid=80&siteid=1
http://forums.microsoft.com/msdn/showforum.aspx?forumid=80&siteid=1

Thanks



Craig Guyer
SQL Server Reporting Services

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Nov 23, 2007

Hi,
I have a need to display on screen AND email a pdf report to email addresses specified at run time, executing the report with a parameter specified by the user. I have looked into data driven subscriptions, but it seems this is based on scheduling. Unfortunately for the majority of the project I will only have access to SQL 2005 Standard Edition (Production system is Enterprise), so I cannot investigate thoroughly.

So, is this possible using data driven subscriptions? Scenario is:

1. User enters parameter used for query, as well as email addresses.
2. Report is generated and displayed on screen.
3. Report is emailed to addresses specified by user.

Any tips on how to get this working?

Thanks

Mark Smith

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May 2, 2007

If anyone could confirm...

SQL Server 2000 SP4 to multiple SQL Server 2005 Mobile Edition on PDAs. My DB on SQL2k is published with a single dynamic row filter using host_name() on my 'parent' table and also join filters from parent to child tables. The row filter uses joins to other tables elsewhere that are not published to evaluate what data is allowed through the filter.

E.g. Published parent table that contains suppliers names, etc. while child table is suppliers' products. The filter queries host_name(s) linked to suppliers in unpublished table elsewhere.

First initial sync with snapshot is correct and as I expected - PDA receives only the data from parent (and thus child tables) that matches the row filter for the host_name provided.

However - in my scenario host_name <--> suppliers may later be updated E.g. more suppliers assigned to a PDA for use or vice versa. But when I merge the mobile DB, the new data is not downloaded? Tried re-running snapshot, etc., no change.

Question: I thought the filters would remain dynamic and be applied on each sync?

I run a 'harmless' update on parent table using TSQL e.g. "update table set 'X' = 'X'" and re-sync. Now the new parent records are downloaded - but the child records are not!

Question: I wonder why if parent records are supplied, why not child records?

If I delete existing DB and sync new, I get the updated snapshot and all is well - until more data added back at server...

Any help would be greatly appreciated. Is it possible (or not) to have dynamic filters run during second or subsequent merge?

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I have tried building an Inline TVF, as I assume this is how it would be used on the DB; however, I am receiving the following error on my code, I must be missing a step somewhere, as I've never done this before. I'm lost on how to implement this clr function on my db?

Error:
Msg 156, Level 15, State 1, Procedure clrDynamicPivot, Line 18
Incorrect syntax near the keyword 'external'.
CREATE FUNCTION clrDynamicPivot
(
-- Add the parameters for the function here
@query nvarchar(4000),
@pivotColumn nvarchar(4000),

[code]....

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Jun 30, 2000

Pardon me if this question is too elementary. I am trying to create a trigger that will cause certain datafields to be updated with values from other data fields in the same row when a certain column, created specifically to fire the trigger, is updated. The purpose of this is to reduce data entry by field personnel.I think I have the create trigger statement correct, but I'm a little confused on the update statement.

In a nutshell, how can I write something like:
UPDATE "TABLENAME"
SET DATAFIELD1 = DATAFIELD2
WHERE RECORDNUMBER = (THE SAME RECORD NUMBER)

I do know that I have to ensure that sp_dboption Recursive Triggers value is set to false, thanks.

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Jul 31, 2013

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Logically, it's like I need to combine IN and LIKE: select pageName where pageName LIKE IN %select itemNo from tblitemNo%..LIKE can only handle one comparison string.

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Jan 21, 2008

Hi people
My users are having troubles with link to default drillthrough report when reports are exported to excel (they REALLY don't like this behavior ), so I decided set all of them disabled in report model, this work fine, but calculated field in reports has this drillthrough link.


Let me show you the situation. Entity Product has an UnitaryCost field, I set the EnableDrillthrough Property in False so when I export a report with this field, no link is shown.

But if I create in the report a calculated field Round(UnitaryCost) this field has a Drillthrough Link

Is this the standard and expected behavior? or its simply a BUG?

Have I done something wrong in my model? and in this case, How I can correct this?

regards.
Julio Diaz.

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Mar 24, 2007

I have a Stored Procedure for processing a Bill of Material.

One column on the Assembly Table is a Function Name that contains some busniess rules.

OK, now I'm doing a Proof of Concept and I'm stumped.

Huuuuh!

I will ultimately have about 100 of these things. My plan was using Dynamic SQL to go execute the function.

Note: The function just returns a bit.

So; here's what I had in mind ...

if isnull(@FnNameYN,'') <> ''
exec spinb_CheckYN @FnNameYN, @InvLineID, @FnBit = @FnBit output




CREATE PROCEDURE dbo.spinb_CheckYN
@FnNameYN varchar(50),
@InvLineID int,
@FnBit bit output
AS

declare @SQL varchar(8000)

set @SQL = '
if dbo.' + @FnNameYN + ' (' + convert(varchar(31),@InvLineID) + ')) = 1
set @FnBit = 1
else
set @FnBit = 0'

exec (@SQL)
GO



Obviously; @FnBit is not defined in @SQL so that execution will not work.
Server: Msg 137, Level 15, State 1, Line 4
Must declare the variable '@FnBit'.
Server: Msg 137, Level 15, State 1, Line 5
Must declare the variable '@FnBit'.


So; is there a way to get a value out of a Dynamic SQL piece of code and get that value INTO my OUTPUT variable?


My many thanks to anyone who can solve this riddle for me.
Thank You!


Sigh: For now, it looks like I'll have a huge string of "IF" statements for each business rule function, as follows:
Hopefully a better solution comes to light.

------ Vertical Build1 - Std Vanes -----------
if @FnNameYN = 'fnb_YN_B1_14'
BEGIN
if dbo.fnb_YN_B1_14 (convert(varchar(31),@InvLineID) ) = 1
set @FnBit = 1
else
set @FnBit = 0
END

------ Vertical Build1 - Scissor Vanes -----------
if @FnNameYN = 'fnb_YN_B1_15'
BEGIN
if dbo.fnb_YN_B1_15 (convert(varchar(31),@InvLineID) ) = 1
set @FnBit = 1
else
set @FnBit = 0
END
.
.
.
etc.

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Oct 24, 2004

I've looked up Books Online on Dynamic Cursor/ Dynamic SQL Statement.

Using the examples given in Books Online returns compilation errors. See below.

Does anyone know how to use Dynamic Cursor/ Dynamic SQL Statement?

James



-- SQL ---------------

EXEC SQL BEGIN DECLARE SECTION;
char szCommand[] = "SELECT au_fname FROM authors WHERE au_lname = ?";
char szLastName[] = "White";
char szFirstName[30];
EXEC SQL END DECLARE SECTION;

EXEC SQL
DECLARE author_cursor CURSOR FOR select_statement;

EXEC SQL
PREPARE select_statement FROM :szCommand;

EXEC SQL OPEN author_cursor USING :szLastName;
EXEC SQL FETCH author_cursor INTO :szFirstName;



--Error--------------------
Server: Msg 170, Level 15, State 1, Line 23
Line 23: Incorrect syntax near ';'.
Server: Msg 1038, Level 15, State 1, Line 24
Cannot use empty object or column names. Use a single space if necessary.
Server: Msg 1038, Level 15, State 1, Line 25
Cannot use empty object or column names. Use a single space if necessary.
Server: Msg 170, Level 15, State 1, Line 27
Line 27: Incorrect syntax near ';'.
Server: Msg 170, Level 15, State 1, Line 30
Line 30: Incorrect syntax near 'select_statement'.
Server: Msg 170, Level 15, State 1, Line 33
Line 33: Incorrect syntax near 'select_statement'.
Server: Msg 102, Level 15, State 1, Line 35
Incorrect syntax near 'author_cursor'.
Server: Msg 170, Level 15, State 1, Line 36
Line 36: Incorrect syntax near ':'.

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Apr 15, 2008

I have a requirment which i have partly accomplished , but could not get through completely

i have a file which comes in a standard format ending with date and seq number ,

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then i need to transform those in to new file comma delimited destination file with a name abc_yyyymmdd,txt and others counting file counting record abc_count_yyyymmdd.txt. and move it to a designated folder. and the source file is then moved to archived folder


what i have taken apprach is

script task select source file --------------------> data flow task------------------------------------------> script task to destination file

dataflow task -------------------------> does count and copy in delimited format



what is happening here is i can accomlish a regular source file convert it to delimited destination file --------> and move it to destination folder with script task .

but cannot work the dynamic pick of a source file.


please advise with your comments or solution you have

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sample file name:

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The expression is looking like this.

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Mar 9, 2007

I have created a dynamic SQL program that returns a range of columns (1 -12) based on the date range the user may select. Each dynamic column is month based, however, the date range may overlap from one year to another. Thus, the beginning month for one selection may be October 2005, while another may have the beginning month of January 2007.

Basically, the dynamic SQL is a derived Pivot table. The problem that I need to resolve is how do I now use this dynamic result set in a Report. Please keep in mind that the name of the columns change based on the date range select.

I have come to understand that a dynamic anything is a moving target!



Please advise.

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Oct 22, 2005

Hi!
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3) How to set AutoNumber in MS SQL Server?!
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Hi,

I'm very rusty on SQL, if someone could help I'd appreciate it! It's probably very easy to solve!

Ok, I have a table called results which contains results of a survey where users rated features on a scale of 1 to 7. For example I have:

results(id, feature1, feature2, feature3, feature4, feature5)

sample data

1, 5, 4, 3, 2, 6

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Thanks,

Lilalfyalien

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Edit: the question is more clear in http://www.dbforums.com/showthread.php?p=4477661&posted=1#post4477661

OK this question is not really SQL server related but since we will build the database in MS SQL Server (2000) i think this is the proper forum to ask this question.

It's actually a quite simple question i gues, but my experience with databases is very limited (buiding my first serious database actually).

when i have two tables Organization and Samples coming from this organization with the following fields:



Organization:

InstituteID (identification)
Name
Adress
...

Sample:

SampleID (sample identification)
InstituteID (references to the Institute table)
SampleDate
Location
...



In general is it better to use the sampleID and InstituteID combined as primary key in the second (sample) table (and build an index on the combined key) or to generate a new unique key for each record? And why should i choose either one of these options?

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Thanks!

--PhB

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