Dynamic Field DB Schema Brainstorming
Sep 6, 2005
Hello - Have a project where we are going to build a form creation application. (ASP.NET). This will allow an administrator to build a form on the fly - this form will appear on the front end of the site.This is a fairly common thing. Are there any resources out there as to where to start designing the DB schema? I'm not looking to reinvent the wheel. Here's the basic objects I'm seeing:TablesFormsFormFieldNamesFormFieldTypesFormFieldJSAny tips on the right direction to go?ThanksRob
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Jul 14, 2006
I want to be able to programmatically set the schema location for an XML source. I first thought it would be a simple task using expressions and variables but it doesn't appear to allow anything in the way of setting it at runtime. Is this possible?
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Mar 26, 2008
Hi all,
I am doing an e-commerce project. This website will have a category of product. Each category will have sub-category. And sub-category may have another level of sub-category. This means the number of sub-category is not fixed. In the sub-category we will have products. Each product will have unpredicable number of properties (1, 2, 3 or many properties).
With the current requirment, I can know exactly the number of sub-category level and the number of properties. But the problem comes when later my boss add more category, sub-category ,... sub-category(more sub-category level), and product, as well as the products properties. At that time my database schema will not suitable for new category, products because the in can only design database with fixed number of sub-category level and fixed number of product properties(attributes or fiels in database).
Therefore, I want to ask all of you that
- Is there anyway to solve this problem?
- how to design database that meet extended requirements as I present above?
Thanks for all of your advices.
Quan.
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Jul 20, 2005
HiThanks in advance for any ideas.What I'm trying to do, is have a category system like Yahoo or thesenewsgroups where you have a parent "COMP" and multiple children "LANG"or "DATABASES". However, these can also have children. So for"DATABASES", you have "MS-SQLSERVER" "ACCESS" "ORACLE8" etcMy question is, what is the best way to store these in a database andalso allow me to retrieve the dataI'm not sure how to procedeThanksSam
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Apr 8, 2008
This works in SQL Server 2005:CREATE XML SCHEMA COLLECTION Version2_1 AS'<xs:schema xmlns="http://www.icpsr.umich.edu/DDI" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:doc="http://www.icpsr.umich.edu/doc" targetNamespace="http://www.icpsr.umich.edu/DDI" elementFormDefault="qualified" attributeFormDefault="unqualified"> <xs:annotation> <xs:documentation> This is a w3c Schema "Technical Implementation" of the DDI Conceptual Specification. This schema is intended for use in producing electronic versions of codebooks for quantitative social science data. CVS Revision information: $Header: /cvsroot/ddi-alliance/ddi/w3c/Version2-1.xsd,v 1.10 2007/07/31 19:03:54 mdiggory Exp $ </xs:documentation> </xs:annotation></xs:schema>' This version, however, gives errors: DECLARE @sql VARCHAR(max)SET @sql ='CREATE XML SCHEMA COLLECTION Version2_1 AS <xs:schema xmlns="http://www.icpsr.umich.edu/DDI" xmlns:xs="http://www.w3.org/2001/XMLSchema"xmlns:doc="http://www.icpsr.umich.edu/doc" targetNamespace="http://www.icpsr.umich.edu/DDI"elementFormDefault="qualified" attributeFormDefault="unqualified"><xs:annotation> <xs:documentation> This is a w3c Schema "Technical Implementation" of the DDI Conceptual Specification. This schema is intended for use in producing electronic versions of codebooks for quantitative social science data. CVS Revision information: $Header: /cvsroot/ddi-alliance/ddi/w3c/Version2-1.xsd,v 1.10 2007/07/31 19:03:54 mdiggory Exp $ </xs:documentation></xs:annotation></xs:schema>'EXEC (@sql)Ultimately, I am trying to create a stored procedure that will take as parameters the name of the new schema and the .xsd file it comes from, so that I can use it in code. I am a novice, so all explanations would be greatly appreciated.Thanks,Ed Graham
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Feb 25, 2005
Hi everyone,
I have a big table which contains approx. 31,524,044 rows. The structure of the table look like this:
date ID A B C D
1/1/65 X Null Null Null Null
1/4/65 X 1 2 3 4
...
2/25/05 X 2 3 4 5
1/1/65 Y Null Null Null Null
1/4/65 Y Null Null Null Null
...
2/25/05 Y 2 3 4 5
...
The number of distinct(ID) is approx 3200 and each one has daily historical A, B, C, and D back for 40 years. For going forward I need to update daily information for 3200 ids. Currently, I am runing query against to this table is ok. I am thinking by the time pass by the table will be hudge since "stored historical information". It probably takes "long long long" time to run the query against this table. Any suggestion or comments... what is the best/better solution? Or it is not problem at all?
Thank you everyone for the help.
shiparsons
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Jan 15, 2004
I can't seem to find a sample code, either here or on the net - - so I'll go ahead and ask...
What I'm looking for is a sample of how to query a database, so that I can populate a listbox with the table names from a database - - and then, populate another listobx with the field names from the database, in order to build a user-driven sql statement builder....
either of the above (at least the field name part) - either a code sample, or a link, will be greatly appreciated) - -
Thanks
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Jun 17, 2015
I have following data in my table. In some of the elements there can be missing nodes. I need to find out missing nodes from each element and insert default node if it doesnt exist so it validates with schena.from below exmaple in the third element location node is missing and i would like to add default node if we see any of these.
Input
CREATE
TABLE #t (xmlfile
XML)
INSERTÂ
INTO #t
      Â
[code]....
Some times Location tag name can be Location10. like <Location10>NY</Location10>.In this case i need to update <Location10> to <Location> to validate with XML schema.
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May 21, 2007
Hi,
i have a stored procedure like this:
CREATE PROCEDURE dbo.spQuery1
@dynamicField nvarchar(10)
AS
SELECT id, productName, productDescription
FROM products
WHERE @dynamicField = 'True'
RETURN
The products table has id, productName, productDescription, property1, property2, property3 fields
So my query variable should be, for example, "property1" and the result should be every row with "property1" set to true... but it doesnt work with the sql like this...
any help?
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May 31, 2006
Hello all, I use Asp.net 1.1 vb script and MS SQL server 2000. I'm wondering if there's a way to put a database field into the title meta tag. For example if I have a detail page for cars which pulls the text info from the SQL data base and I want the field "name" in the title tag
details.aspx?name=Hummer would have the Title meta tag as Cars..."Hummer"
and
details.aspx?name=Corvette would have the Title meta tag as Cars..."Corvette"
so that for each car showing in details.aspx page it wouldn't have to have the same title tag for search engines
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Dec 9, 2014
I'm having some troubles with a dynamic field of mine db. The field can change in the length. But I need to change the way it come from the db.
Today it comes like this:
Cod OU | Name OU
10000 Alabama
10100 Olivence
10001 Wraith
I need to change the Code to be like this:
Cod OU* | Name OU
1.00.00 Alabama
1.01.00 Olivence
1.00.01 Wraith
Is it possible?
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Jul 20, 2005
Can someone point me in the right direction to solve the following(basic) SQL problem below using SQL Server:Let's say I have a table like this that lists people's likes:CREATE TABLE likes (myname VARCHAR (60),travel BIT,eatingout BIT,disco BIT,swimming BIT);Let's say I put the following data inside this table:INSERT INTO likes VALUES ('Darren', 1,0,0,1)INSERT INTO likes VALUES ('John',1,1,0,1)INSERT INTO likes VALUES ('Peter',0,0,0,0)INSERT INTO likes VALUES ('Jill',0,0,0,1)Then what I want is to create a (view? Or function? – I am not sure),called ‘likes_details' that when I send this query:SELECT myname, likes FROM likes_detailsReturns the following:Myname likesDarrenTraveling and swimmingJohnTraveling, eating out and swimmingPeterDone not like anythingJillSwimming onlyPlease! Can anyone help!!Thank you in advance.
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Apr 10, 2008
Hi
In Sqlserve we can create dynmic field on sql like:
Select '' as Name from Employee.
It creates a string field.
I want to how to create a Bit field in this way.
Regards
Deepak
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Jul 20, 2005
Hi,I am trying to create a stored procedures (SQL 7.0), to provide dataina crosstab format.(I'm using Crystal Reports 8.5, but the Crosstab capabilities areterrible, so I have to do as much as possible on the SQL side)I have a table [Occurrences] with the following fields:Year (int)Month (int)Occurs (int)Claims (int)I need a query to give me the following format:Acct_Month 2001 2002 2003Occurs Claims Occurs Claims Occurs ClaimsJanuary 120 180 132 196 110 140February 154 210 165 202 144 178March etc.......Catch! I need the Year field name to be the contents of the fieldYear in the Table (2001, 2002, 2003...). Not the usual Year_1, Year_2approach.I got the month name ok...Acct_Month = DATENAME(month, Convert(Varchar(2), Month) + '/01/'+Convert(Char(4),Year))Is it possible to do this easely, without the use of cursors?Any help would be much appreciated.Luis Pinto
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Aug 17, 2007
I have images on which users may comment. Now I want to sort those images on the amount of comments each image has.I use custom paging in combination with ROW_NUMBERSo I want to sort items in one table based on the number of occurences of that item in another table...I have the following query (which doesnt work):SELECT *FROM(select ROW_NUMBER() OVER (ORDER BY mediaComments DESC) as RowNum,m.title,m.usercode,m.mediaid,mediaComments=(select count(*) from tblMediaComments where mediaid=m.mediaid)FROM tblAlbums a inner join tblMedia m on am.mediaid=m.mediaidleft join tblMediaComments mc on mc.mediaid=m.mediaidWHERE a.showTo=1group by m.title,m.usercode,m.mediaid) as InfoWHERE RowNum between @startRowIndex AND (@startRowIndex + @maximumRows-1)
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Sep 27, 2007
Locally I develop in SQL server 2005 enterprise. Recently I recreated my db on the server of my hosting company (in sql server 2005 express).I basically recreated the tables and copied the data in it.I now receive the following error when I hit the DB:The 'System.Web.Security.SqlMembershipProvider' requires a
database schema compatible with schema version '1'. However, the
current database schema is not compatible with this version. You may
need to either install a compatible schema with aspnet_regsql.exe
(available in the framework installation directory), or upgrade the
provider to a newer version.I heard something about running aspnet_regsql.exe, but I dont have that access to the DB. Also I dont know if this command does anything more than creating the membership tables and filling it with some default data...Any other solutions/thought on what this can be?Thanks!
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May 27, 2008
I have 35+ tables and 15+ stored procedures with SchemaA, now I want to transfer them to SchemaB.
I know how to do one by one...!
alter schema SchemaB transfer
SchemaA.TableA
but it will take long time...!
Thanks,
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Apr 12, 2008
Hello everybody!I'm using ASP.NET 3.5, MSSQL 2005I bought virtual web hosting .On new user registrations i have an error =(The 'System.Web.Security.SqlMembershipProvider' requires a database schema compatible with schema version '1'. However, the current database schema is not compatible with this version. You may need to either install a compatible schema with aspnet_regsql.exe (available in the framework installation directory), or upgrade the provider to a newer version. On my virtual machine it work fine but on web hosting i have an error =(What can you propose to me?
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May 8, 2007
Hello,
I would like to use SSIS tool to move the data from one database schema to another database schema.
For example:
Source table has
1. UserName (varchar 20) (no null)
2. Email (varchar 50) (can be null)
Destination table has
1. UserID (uniqueidentifier - GUID)
2. UserName (varchar 50) (no null)
3. EmailAddress (nvarchar 50) (can be null)
4. DateTime
Questions:
1. What controls do I use in my Data Flow to make data move between databases with different data types and include new value in UserID as a new GUID and DateTime as a date (GETDATE)?
OLE DB Source, OLE DB Destination, Data Converson and .....
How do I insert Guid and Date at the same time?
2. I have many tables to do data moving. Any sugestions? How do I architect my project? If I create many data flows for each table - it will look complicated.
Please give me some advices here.
Thanks.
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Apr 19, 2006
I used SSEUtil to add a schema to my database but I am having problems. Used these steps:SSEUtil -c> USE "c:Rich.mdf"> GO>!RUN Resume.SQL//indicates success>SELECT * FROM SYS.XML_SCHEMA_COLLECTIONS>GO//schema not shown in list> USE master>GO>SELECT * FROM SYS.XML_SCHEMA_COLLECTIONS>GO//schema is shown in the queryIt appears that the schema is not added to the desired database, so when I try to use the schema in Visual Studio, the schema does not appear when I connect to the Rich.mdf database. Any ideas on what I am doing wrong or why this might be happening?ThanksKevin
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Nov 21, 2011
I am using sql server 2008 R2.I want to copy all the objects of one schema and put it in another schema. I want to do that from command prompt.
In oracle we can export the objects of one user and import to another user using exp and imp. I want similar type.
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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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Mar 9, 2015
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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Aug 25, 2015
I'm new to SQL and I'm trying to write a statement to satisfy the following:
If [Field1] contains text from [Field2] then return [Field3] as [Field4].
I had two tables where there were no matching keys. I did a cross apply and am now trying to parse out the description to build the key.
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May 4, 2006
Good morning...
I begin with SQL, I would like to add a field that will be date like 21/01/2000.
Actually i find just "datetime" format but give me the format 21/01/2000 01:01:20.
How to do for having date and time in two different field.
Sorry for my english....
Cordially
A newbie
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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 ,
suppose , the file name is abc_yyyymmdd_01 , for first copy , if it is copied more then once the sequence number changes to 02 and 03 and keep going on .
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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Mar 2, 2014
I am trying to create an ssis package with dynamic csv file as output. and out format contains query output.
sample file name:
Unique identifier + query output + systemdate();
The expression is looking like this.
@[User::FilePath] + @[User::FileName] + ".CSV"
-- user filepath is a variable from ssis package. File name is the output from SQL query. using script task i have assigned the values to @[User::FileName] .
When I debugged the script task the value getting properly but same variable am using for Flafile destination. but its not working.
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Jul 11, 2005
I'm using DTS to import data from an Access memo field into a SQL Server ntext field. DTS is only importing the first 255 characters of the memo field and truncating the rest.I'd appreciate any insights into what may be causing this problem, and what I can do about it.Thanks in advance for any help!
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Dec 30, 2003
I need to pass in null/blank value in the date field or declare the field as string and convert date back to string.
I tried the 2nd option but I am having trouble converting the two digits of the recordset (rs_get_msp_info(2), 1, 2))) into a four digit yr. But it will only the yr in two digits.
The mfg_start_date is delcared as a string variable
mfg_start_date = CStr(CDate(Mid(rs_get_msp_info(2), 3, 2) & "/" & Mid(rs_get_msp_info(2), 5, 2) & "/" & Mid(rs_get_msp_info(2), 1, 2)))
option 1
I will have to declare the mfg_start_date as date but I need to send in a blank value for this variable in the stored procedure. It won't accept a null or blank value.
With refresh_shipping_sched
.ActiveConnection = CurrentProject.Connection
.CommandText = "spRefresh_shipping_sched"
.CommandType = adCmdStoredProc
.Parameters.Append .CreateParameter("ret_val", adInteger, adParamReturnValue)
.Parameters.Append .CreateParameter("@option", adInteger, adParamInput, 4, update_option)
.Parameters.Append .CreateParameter("@mfg_ord_num", adChar, adParamInput, mfg_ord_num_length, "")
.Parameters.Append .CreateParameter("@mfg_start_date", adChar, adParamInput, 10, "")
Set rs_refresh_shipping_sched = .Execute
End
Please help
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