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• Access Qry Questions

  - by kralco626

  It was suggested that I repost this questions as I didn't do a very good job discribing my issue the first time. (http://stackoverflow.com/questions/2921286/access-question) THE SITUATION: I have inspections from many months of many years. Sometimes there is more than one inspection in a month, sometimes there is no inspection. However, the report that is desired by the clients requires that I have EXACTLY ONE record per month for the time frame they request the report. They understand the data issues and have stated that if there is more than one inspection in a month to take the latest one. If the is not an inspection for that month, go back in time untill you find one and use that one. So a sample of the data is as follows: (I am including many records because I was told I did not include enough data on my last try) equip_id month year runtime date 1 5 2008 400 5/10/2008 12:34 PM 1 7 2008 500 7/12/2008 1:45 PM 1 8 2008 600 8/20/2008 1:12 PM 1 8 2008 605 8/30/2008 8:00 AM 1 1 2010 2000 1/12/2010 2:00 PM 1 3 2010 2200 3/24/2010 10:00 AM 2 7 2009 1000 7/20/2009 8:00 AM 2 10 2009 1400 10/14/2009 9:00 AM 2 1 2010 1600 1/15/2010 1:00 PM 2 1 2010 1610 1/30/2010 4:00 PM 2 3 2010 1800 3/15/2010 1:00PM After all the transformations to the data are done, it should look like this: equip_id month year runtime date 1 5 2008 400 5/10/2008 12:34 PM 1 6 2008 400 5/10/2008 12:34 PM 1 7 2008 500 7/12/2008 1:45 PM 1 8 2008 605 8/30/2008 8:00 AM 1 9 2008 605 8/30/2008 8:00 AM 1 10 2008 605 8/30/2008 8:00 AM 1 11 2008 605 8/30/2008 8:00 AM 1 12 2008 605 8/30/2008 8:00 AM 1 1 2009 605 8/30/2008 8:00 AM 1 2 2009 605 8/30/2008 8:00 AM 1 3 2009 605 8/30/2008 8:00 AM 1 4 2009 605 8/30/2008 8:00 AM 1 5 2009 605 8/30/2008 8:00 AM 1 6 2009 605 8/30/2008 8:00 AM 1 7 2009 605 8/30/2008 8:00 AM 1 8 2009 605 8/30/2008 8:00 AM 1 9 2009 605 8/30/2008 8:00 AM 1 10 2009 605 8/30/2008 8:00 AM 1 11 2009 605 8/30/2008 8:00 AM 1 12 2009 605 8/30/2008 8:00 AM 1 1 2010 2000 1/12/2010 2:00 PM 1 2 2010 2000 1/12/2010 2:00 PM 1 3 2010 2200 3/24/2010 10:00 AM 2 7 2009 1000 7/20/2009 8:00 AM 2 8 2009 1000 7/20/2009 8:00 AM 2 9 2009 1000 7/20/2009 8:00 AM 2 10 2009 1400 10/14/2009 9:00 AM 2 11 2009 1400 10/14/2009 9:00 AM 2 12 2009 1400 10/14/2009 9:00 AM 2 1 2010 1610 1/30/2010 4:00 PM 2 2 2010 1610 1/30/2010 4:00 PM 2 3 2010 1800 3/15/2010 1:00PM I think that this is the most accurate dipiction of the problem that I can give. I will now say what I have tried. Although if someone else has a better approach, I am perfectly willing to throw away what I have done and do it differently... STEP 1: create a query that removes the duplicates from the data. Ie. only one record per equip_id for each month/year, keeping the latest one. (done successfully) STEP 2: create a table of the date ranges the client wants the report for. (This is done dynamically at runtime) This table two field, Month and Year. So if the client wants a report from FEb 2008 to March 2010 the table would look like: Month Year 2 2008 3 2008 . . . 12 2008 1 2009 . . . 12 2009 1 2010 2 2010 3 2010 I then left joined this table with my query from step 1. So now I have a record for every month and every year that they want the report for, with nulls(or blanks) or sometimes 0s (not sure why, access is weird, but sometiems they are nulls and sumtimes they are 0s...) for the runtimes that are not avaiable. I don't particurally like this solution, but ill do it if i have to. (this is also done successfully) STEP 3: Fill in the missing runtime values. This I HAVE NOT done successfully. Note that if the request range for the report is feb 2008 to march 2010 and the oldest record for a particular equip_id is say june 2008, it is O.K. for the runtimes to be null (or zeros) for feb - may 2008. I am working with the following query for this step: SELECT equip_id as e_id,year,month, (select top 1 runhours from qry_1_c_One_Record_per_Month a where a.equip_id = e_id order by year,month) FROM qry_1_c_One_Record_per_Month where runhours is null or runhours = 0; UNION SELECT equip_id, year, month, runhours FROM qry_1_c_One_Record_per_Month WHERE .runhours Is Not Null And runhours <> 0 However I clearly can't check the a.equip_id = e_id ... so i don't have anyway to make sure i'm looking at the correct equip_id SUMMARY: So like i said i'm willing to throw away any part, or all of what I tried. Just trying to give everyone a complete picture. I REALLY apreciate ANY help! Thanks so much in advance!

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• Hide other domains' menus from node edit form on a Drupal site using domain access

  - by monkeyninja

  I'm in the process of making some improvements to a live Drupal site that's using the Domain Access module to run a number of microsites. I'm trying to find a way of restricting the menus a user can post content to from the node edit screen. A user on one of the domains should only be able to post content to menus associated with that domain. Is there a simple way of achieving this? I'm guessing there are some hooks I could use, but so far I have been unable to identify them. I'd prefer not to have to install further modules to achieve this and to be able to add some code to the current site to alter the forms. The site is struggling with the large number of modules we've had to install on it already.

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• In MS Access is there a way to allow forms to update while maintaning Read Only

  - by Alex

  I have several forms linked tables via queries. The form pull data such as sales and ratios by selecting a product from the main's form's combo box. I am however having to issues: 1- I would ultimately prefer the combo box to be a free entry; however by just entering in the box and hitting enter (not a button called “enter on a screen” which would initiate recalcs, just normal enter), while it does bring the new information in sub-forms it also changes the information in the original table. If I make the table read only that it just doesn't allow the form to work by saying that the table is read only. 2- The same Read only issue occurs when another user with read only rights tries to use the database. I understand that ready only is functioning as intended, however I am wondering if there is way to make some functions work while disallowing the updating. I am unfortunately learning on the go, so go easy plz. Thank you

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• Update query for Access Database for certain Parameters

  - by nitinkhanna

  Hi, I am using MS Access as a database and using c#, .net for updating some records in it. But it is giving error saying "No value given for one or more required parameters." There are 5 colums in Table and I want to update only 2, for that I have written the query like "update User_DTL set user_role_id = '" + _UserRole + "', auth_id ='" + _authId + "'" + " WHERE Id = '" + _Id + "' "; where _UserRole, _authId, _Id are strings. What may be the error. Do I need to give every parameter in update statement or there is some other way. Thanks

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• user access management in j2ee web application

  - by kawtousse

  Hi everyone, I am working with jsp/servlet project and i have to complete the module of access management to my jsps since I have more than one user with different profile. I defined a table in my database wich resume the profil and the url permitted like that: id_profil :1 url : http://localhost/...xyz.jsp id page 1 Now I am trying to let the menu modified appropriately to the id_profil of the logged user. So there are pages allowed in one profile but must be hidden to others. I have no idea since now how to realize this and it is so important for me. thanks for your help.

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• MS Access vs SQL Server and others ? Is it worth taking a db server when less than 2 Gb and only 20

  - by asksuperuser

  After my experiment with MSAccess vs MySQL which shows MS Access hugely overperforming Mysql odbc insert by a factor 1000% before I would do the same experiment with SQL Server I searched for some other's people and found this one: http://blog.nkadesign.com/2009/access-vs-sql-server-some-stats-part-1/ which says "As a side note, in this particular test, Access offers much better raw performance than SQL Server. In more complex scenarios it’s very likely that Access’ performance would degrade more than SQL Server, but it’s nice to see that Access isn’t a sloth." So is worth bother with some db server when data is less than 2 Gb and users are about 20 (knowing that MS Access theorically supports up to 255 concurrent users though practically it's around a dozen concurrent users only). Are there any real world studies that really compare MS Access with other db in these specific use case ? Because professionaly speaking I keep hearing people systematically recommend DB server from people who have never used Access just because they think DB Server can only perform better in every case which I used to think myself I confess.

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• MS Access caching of reports / query results

  - by FrustratedWithFormsDesigner

  Is it possible to cache a query or report the first time it is run? It seems that opening a report will re-query the datasource. For certain queries, the data source does not change frequently enough that I'd be worried about a cache being out of date (users are notified when the database changes), and it would be much easier for the users to be able to open the report instantly rather than having to wait several minutes every time they want to see the data (though I realize if they close the file the caches will be lost - that's OK). Data comes from an ODBC connection to Oracle, using Access 2003.

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• Upload a .pdf file to a Sharepoint Document Library using Access vba

  - by Jim Shaffer

  Within an Access 2007 application, I'm creating a static report in .pdf format. I want to create it, then export the static report (not the data itself) to a Sharepoint Document Library. The intent is for it to be a public repository, no versioning. Each report will carry a unique name. I'm a seasoned vba programmer, but using Sharepoint services is new to me. How do I go about doing this? Assume I can identify the file name and location after I've generated it, and I know the Sharepoint library URL, and have permissions. Where do I go from there?

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• Passing parameters in VBA for Access

  - by Newbie

  In Access 2007 I have created a form with a textbox and a button. At the moment, when I press the button, I load a query with the textbox data passed as a parameter to the query criteria. I would like to change this so that all (manually input) options appear in a combobox (in place of the textbox). I would then like to pass the combobox text to a VBA module upon pressing the button. How do I do this? Similarly, I hope to output a different string from this module, and I hope to use this as the query criteria. How do I do this?

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• Access SQL query to SELECT from one table and INSERT into another

  - by typoknig

  Below is my query. Access does not like it, giving me the error Syntax error (missing operator) in query expression 'answer WHERE question = 1'. Hopefully you can see what I am trying to do. Please pay particular attention to 3rd, 4th, and 5th lines under the SELECT statement. INSERT INTO Table2 (respondent,1,2,3-1,3-2,3-3,4,5) SELECT respondent, answer WHERE question = 1, answer WHERE question = 2, answer WHERE answer = 'text 1' AND question = 3, answer WHERE answer = 'text 2' AND question = 3, answer WHERE answer = 'text 3' AND question = 3, answer WHERE question = 4, longanswer WHERE question 5 FROM Table1 GROUP BY respondent;

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• C++ toLowerCase Function won't work - Access violation

  - by misaizdaleka

  Hi, I have a simple function which takes an array of characters as an argument, and converts all the characters to lower case. However, I get a weird access violation error. Here's the code: void toLower(char *rec) { int i=0; while (rec[i]!='\0') { if (rec[i]>='A' && rec[i]<='Z') rec[i]='a'+rec[i]-'A'; //this is where I get an error - assigning the //the value to rec[i] is the problem i++; } } Can you tell me what's my mistake? Thanks

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• How to convert ms access data into pdf in vb.net

  - by user225269

  I want to convert the ms access data into a document so that the print function in vb.net will read it. Where do I start from here? Here is my form: http://screencast.com/t/MGU4N2UyNmY And here is the code for print preview. Try PrintPreviewDialog1.ShowDialog() Catch es As Exception MessageBox.Show(es.Message) End Try How do I incorporate the above code, to the code below so that there is something that can be seen when I hit the print button? Dim cn As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\search.mdb") Dim cmd As OleDbCommand = New OleDbCommand("Select * from GH where NAME= '" & TextBox6.Text & "' ", cn) cn.Open() Dim rdr As OleDbDataReader rdr = cmd.ExecuteReader If rdr.HasRows Then rdr.Read() NoAcc = rdr("NAME") If (TextBox6.Text = NoAcc) Then TextBox1.Text = rdr("IDNUMBER") If (TextBox6.Text = NoAcc) Then TextBox7.Text = rdr("DEPARTMENT") If (TextBox6.Text = NoAcc) Then TextBox8.Text = rdr("COURSE") End If Please help,thanks

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• convert function from Access SQL to T-SQL 2005

  - by Pace

  Can someone please convert this access sql function for me to work in t-sql 2005. I am tring to take the selling price minus the cost as one number. And divide that by the original selling price to produce a second number Thanks :) =IIf([Selling Price]=0,0,([Selling Price]-Nz([Cost]))/[Selling Price]) IIRC it should be something along the lines of; ISNULL((ISNULL([Selling Price],0) - ISNULL(Cost,0)),0) / ISNULL([Selling Price],0) AS Margin But here I am getting a divide by Zero error. any suggestions?

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• How to make database acces for multiple user acces?

  - by Yusan Susandi

  I have database acces(.mdb) for my application desktop(c#) like billing application, i want that database shared to open database by multiple user. Realy now i'm use that database in computer one that fine connection succesfully but when i'm try to open database in computer two i have error message like "database has open exclusive by other user or you not have permision" what i'm to do... Please anyone help me.. tanks. Regards, Yusan Susandi

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• Update query (access & vb.net)

  - by yae

  Hi: I have to update some fields of a table of access according to the value of parameter. If this paramter is "true" I need to update. Table idInvoice price percentageTax1 tax1 percentageTax2 tax2 total Example values: idinvoice: 12300 price: 100 € percentageTax1: 10 % tax1= 10€ percentageTax2: 5 % tax2: 5€ total: 115 € (result: 100€+10€+5€) Ok. If the parameter on that I have commented before is "true" I must update the percentages and then update the total. I need to replace the "old" percentages by new percent. Ok I can do it in 3 queries: update invocies set percentageTax1=20,tax1=price *(percentageTax1/100) where idInvoice=@number and percentageTax1=10 update invocies set percentageTax2=7,tax2=price *(percentageTax2/100) where idInvoice=@number and percentageTax2=5 update invocies set total=price+tax1+tax2 where idInvoice=@number . But my question is: is there any an alternative to do this in 1 query?

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• MS Access Can't move to a different record?

  - by user986706

  Ok, I'm really baffled. Here's the rundown: I've created a form with a subform. The main form is called FacilityInfo, and the subform is called BillingInfo. The forms are linked via 3 fields, AffiliateID, ClientID, and FacilityID. the subform shows one record at a time, set to show Continuous Forms, and AllowAdditions = No I can see that there are 4 records in the nav bar. But Access won't let me move off the first record. I've tried setting to Single Form. I've tried AllowAdditions = Yes. I do have a Vertical Scroll bar on the subform. It will allow me to scroll through the records, but I can only see them. I cannot move to one of the controls. Any ideas? I'm freakin' out! Thanks in advance!

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• Entity Framework 4 "Generate Database from Model" to SQLEXPRESS mdf results in "Could not locate ent

  - by InfinitiesLoop

  I'm using Visual Studio 2010 RTM. I want to do model-first, so I started a new MVC app and added a new blank edmx. Created a few entities. No problem. Then I "Generate Database from Model", and allow the dialog to create a new database for me, which it does successfully as 'mydatabase.mdf' in the app's App_Data directory. Then I open the generated sql file (in Visual Studio). To run it of course I have to give it a connection. I am not sure if it's right, but I used '.\SQLEXPRESS' and Windows authentication. No idea how I'd tell it where the MDF is. Then the problem -- upon executing it, I get: Msg 911, Level 16, State 1, Line 1 Could not locate entry in sysdatabases for database 'mydatabase'. No entry found with that name. Make sure that the name is entered correctly. And indeed there were no tables created in the MDF. So... what am I doing wrong, or am I off my rocker expecting this to work? :)

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• Database Change Management - Setup for Initial Create Scripts, Subsequent Migration Scripts

  - by Martin Aatmaa

  I've got a database change management workflow in place. It's based on SQL scripts (so, it's not a managed code-based solution). The basic setup looks like this: Initial/ Generate Initial Schema.sql Generate Initial Required Data.sql Generate Initial Test Data.sql Migration 0001_MigrationScriptForChangeOne.sql 0002_MigrationScriptForChangeTwo.sql ... The process to spin up a database is to then run all the Initlal scripts, and then run the sequential Migration scripts. A tool takes case of the versioning requirements, etc. My question is, in this kind of setup, is it useful to also maintain this: Current/ Stored Procedures/ dbo.MyStoredProcedureCreateScript.sql ... Tables/ dbo.MyTableCreateScript.sql ... ... By "this" I mean a directory of scripts (separated by object type) that represents the create scripts for spinning up the current/latest version of the database. For some reason, I really like the idea, but I can't concretely justify it's need. Am I missing something? The advantages would be: For dev and source control, we would have the same object-per-file setup that we're used to For deployment, we can spin up a new DB instance to the latest version either by running the Initial+Migrate, or by running the scripts from Current/ For dev, we do not need a DB instance running in order to do development. We can do "offline" development on the Current/ folder. The disadvantages would be: For each change, we need to update the scripts in the Current/ folder, as well as create a Migration script (in the Migration/ folder) Thanks in advance for any input!

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• MySQL Relational Database Foreign Key

  - by user623879

  To learn databasing, I am creating a movie database. To associate multiple directors with a movie, I have the following schema: movie(m_ID, ....) m_director(dirID, dirName)//dirID is a autoincrement primary key m_directs(dirID, m_ID) //dirID, m_ID are set as foreign Keys in the mysql database(InnoDB engine) I have a program that connects to the db that needs to add a movie to the database. I can easily add a new entry to the movie table and the m_director table, but I am having trouble adding a entry in the m_directs table. INSERT INTO m_director (dirName) VALUES("Jason Reitman"); INSERT INTO m_directs (dirID, m_ID) VALUES(LAST_INSERT_ID(), "tt0467406"); I am using this sql statement to insert a new director and add the association to the movie. I know the primary key of the movie, but I don't know the dirID, so I use LAST_INSERT_ID() to get the last id of the director just inserted. The problem I am having is that I get the following error: MySql.Data.MySqlClient.MySqlException (0x80004005): Cannot add or update a child row: a foreign key constraint fails (`siteproducts`. `m_directs`, CONSTRAINT `m_directs_ibfk_2` FOREIGN KEY (`dirID`) REFERENCES `m_directs` (`dirID`) ON DELETE CASCADE ON UPDATE CASCADE) Any ideas?

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• Get id when inserting new row using TableAdapter.Update on a file based database

  - by phq

  I have a database table with one field, called ID, being an auto increment integer. Using a TableAdapter I can read and modify existing rows as well as create new ones. However if I try to modify a newly inserted row I get an DBConcurrencyException: OleDbConnection conn = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Shift.mdb;Persist Security Info=True"); ShiftDataSetTableAdapters.ShiftTableAdapter shiftTA = new ShiftDataSetTableAdapters.ShiftTableAdapter(); shiftTA.Connection = conn; ShiftDataSet.ShiftDataTable table = new ShiftDataSet.ShiftDataTable(); ShiftDataSet.ShiftRow row = table.NewShiftRow(); row.Name = "life"; table.Rows.Add(row); shiftTA.Update(row); // row.ID == -1 row.Name = "answer"; // <-- all fine up to here shiftTA.Update(row); // DBConcurrencyException: 0 rows affected Separate question, is there any static type of the NewShiftRow() method I can use so that I don't have to create table everytime I want to insert a new row. I guess the problem in the code comes from row.ID that is still -1 after the first Update() call. The Insert is successful and in the database the row has a valid value of ID. How can I get that ID so that I can continue with the second Update call? Update: IT looks like this could have been done automatically using this setting. However according to the answer on msdn social, OLEDB drivers do not support this feature. Not sure where to go from here, use something else than oledb? Update: Tried SQLCompact but discovered that it had the same limitation, it does not support multiple statements. Final question: is there any simple(single file based) database that would allow you to get the values of a inserted row.

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• SQL Server 2005 database design - many-to-many relationships with hierarchy

  - by Remnant

  Note I have completely re-written my original post to better explain the issue I am trying to understand. I have tried to generalise the problem as much as possible. Also, my thanks to the original people who responded. Hopefully this post makes things a little clearer. Context In short, I am struggling to understand the best way to design a small scale database to handle (what I perceive to be) multiple many-to-many relationships. Imagine the following scenario for a company organisational structure: Textile Division Marketing Division | | ---------------------- ---------------------- | | | | HR Dept Finance Dept HR Dept Finance Dept | | | | ---------- ---------- ---------- --------- | | | | | | | | Payroll Hiring Audit Tax Payroll Hiring Audit Accounts | | | | | | | | Emps Emps Emps Emps Emps Emps Emps Emps NB: Emps denotes a list of employess that work in that area When I first started with this issue I made four separate tables: Divisions - Textile, Marketing (PK = DivisionID) Departments - HR, Finance (PK = DeptID) Functions - Payroll, Hiring, Audit, Tax, Accounts (PK = FunctionID) Employees - List of all Employees (PK = EmployeeID) The problem as I see it is that there are multiple many-to-many relationships i.e. many departments have many divisions and many functions have many departments. Question Giving the database structure above, suppose I wanted to do the following: Get all employees who work in the Payroll function of the Marketing Division To do this I need to be able to differentiate between the two Payroll departments but I am not sure how this can be done? I understand that I could build a 'Link / Junction' table between Departments and Functions so that I can retrieve which Functions are in which Departments. However, I would still need to differentiate the Division they belong to. Research Effort As you can see I am an abecedarian when it comes to database deisgn. I have spent the last two days resaerching this issue, traversing nested set models, adjacency models, reading that this issue is known not to be NP complete etc. I am sure there is a simple solution?

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• Database design for credit based purchases

  - by FreshCode

  I need an elegant way to implement credit-based purchases for an online store with a small variety of products which can be purchased using virtual credit or real currency. Alternatively, products could only be priced in credits. Previous work I have implemented credit-based purchasing before using different product types (eg. Credit, Voucher or Music) with post-order processing to assign purchased credit to users in the form of real currency, which could subsequently be used to discount future orders' charge totals. This worked fairly well as a makeshift solution, but did not succeed in disconnecting the virtual currency from the real currency, which is what I'd like to do, since spending credits is psychologically easier for customers than spending real currency. Design I need guidance on designing the database correctly with support for the simultaneous bulk purchase of credits at a discount along with real currency products. Alternatively, should all products be priced in credits and only credit have a real currency value? Existing Database Design Partial Products table: ProductId Title Type UnitPrice SalePrice Partial Orders table: OrderId UserId (related to Users table, not shown) Status Value Total Partial OrderItems table (similar to CartItems table): OrderItemId OrderId (related to Orders table) ProductId (related to Products table) Quantity UnitPrice SalePrice Prospective UserCredits table: CreditId UserId (related to Users table, not shown) Value (+/- value. Summed over time to determine saldo.) Date I'm using ASP.NET MVC and LINQ-to-SQL on a SQL Server database.

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• Get data from database without refresh whole page

  - by stefanz

  Hello everybody. My project is about a school admin I have a page called : createClass.php, where user inserts grade, profile etc. When he press "submit" page called createdClass.php is loading. Inside this page I have all code which insert data into database and also an "if" structure which says : "Class already exists" if in database is another class with same specifications. Also in second page (createdClass.php) i have a small table which shows the place of each student. First time all cells are green (this means that place is free) and if i click one of them appear a popup window which let me to add info about student from that place. If a place is busy the cell will be red (take a look here : http://screencast.com/t/NzM2YzYxNjct). The big problem is that the cell will be red only after refresh the page (the place ask for data from database). If I press refresh appears "class already exists". To test the code i added in a comment all lines which verify and add respectively classroom . I think my problem can be solved with ajax. I'm waiting for an answer. Regards Stefan

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• PHP - Database schema: version control, branching, migrations.

  - by Billiam

  I'm trying to come up with (or find) a reusable system for database schema versioning in php projects. There are a number of Rails-style migration projects available for php. http://code.google.com/p/mysql-php-migrations/ is a good example. It uses timestamps for migration files, which helps with conflicts between branches. General problem with this kind of system: When development branch A is checked out, and you want to check out branch B instead, B may have new migration files. This is fine, migrating to newer content is straight forward. If branch A has newer migration files, you would need to migrate downwards to the nearest shared patch. If branch A and B have significantly different code bases, you may have to migrate down even further. This may mean: Check out B, determine shared patch number, check out A, migrate downwards to this patch. This must be done from A since the actual applied patches are not available in B. Then, checkout branch B, and migrate to newest B patch. Reverse process again when going from B to A. Proposed system: When migrating upwards, instead of just storing the patch version, serialize the whole patch in database for later use, though I'd probably only need the down() method. When changing branches, compare patches that have been run to patches that are available in the destination branch. Determine nearest shared patch (or oldest difference, maybe) between db table of run patches and patches in destination branch by ID or hash. Could also look for new or missing patches that are buried under a number of shared patches between the two branches. Automatically merge down to the nearest shared patch, using the db table stored down() methods, and then merge up to the branche's latest patch. My question is: Is this system too crazy and/or fraught with consequences to bother developing? My experience with database schema versioning is limited to PHP autopatch, which is an up()-only system requiring filenames with sequential IDs.

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• Using PHP to display button with hyperlink or greyed out button if no URL in database

  - by Diane

  I've got a webpage that I'm working on where you click on a letter or category and it displays records matching that query from a database. One of the things I want to display is a hyperlinked button that says "Website" if the database record contains a URL in the 'URL' field, and if there is no value in that field, it will display a greyed out version of that button. I tried using an if...else statement, but was absolutely unable to get the syntax correct trying to get php to call up the 'URL' value in the middle of an "echo " So here's what I did: <?php if($row_rsmemalpha['URL'] != NULL) ?><a href="http://<?php echo ($row_rsmemalpha['URL']);?>"><target ="_blank"><img src="web_button_on.gif" alt="Website" border="0" height="18" width="103" /></target></a> <?php if($row_rsmemalpha['URL'] == NULL) echo "<img src=\"web_button_off.gif\" alt=\"No Website Available\" height=\"18\" width=\"103\" />"; ?> If there is a URL available it shows the button properly. But if there isn't a URL in the database it shows both buttons. I have spent a few days studying examples and tutorials on the web, but haven't found too much that helps. The buttons were completely non-functional when I started, so I'm pretty proud of getting this far with it! I've just run out of time and patience for more trial-and-error experimenting. Any help is appreciated... Diane

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