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  • Are there any general guidelines for increasing the generation of reports?

    - by David Thielen
    Yes a lot of what you need to do is specific not only to the vendor you use, but also to the specific reports you are creating. However, there are also good general rules that hold for most reports. Vendor Best Practices BIRT Best Practices (more why you need a 3 day class to learn all of them) Crystal Reports Best Practices Microsoft Sql Server Best Practices Oracle B.I. Publisher Best Practices Windward Reports Best Practices General tips on designing a report Note: posted to self answer

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  • Hibernate @DiscriminatorColumn and @DiscriminatorValue issue

    - by user224270
    I have this parent class: @Entity @Inheritance(strategy = InheritanceType.JOINED) @Table(name = "BSEntity") @DiscriminatorColumn(name = "resourceType", discriminatorType = DiscriminatorType.STRING, length = 32) public abstract class BaseEntity { and the subclass @Entity @Table(name = "BSCategory") @DiscriminatorValue("Category") public class CategoryEntity extends BaseEntity { But when I run the program, I get the following error: 2010-06-03 10:13:54,222 [main] WARN (org.hibernate.util.JDBCExceptionReporter:100) - SQL Error: 1364, SQLState: HY000 2010-06-03 10:13:54,222 [main] ERROR (org.hibernate.util.JDBCExceptionReporter:101) - Field 'resourceType' doesn't have a default value Any thoughts? Updated: Database is MySQL. I have also changed inheritance strategy to JOINED instead of SINGLE_TABLE. Help

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  • How do I aggregate activerecord model data for a specific time period?

    - by gsiener
    I'm collecting data from a system every ~10s (this time difference varies due to communication time with networked devices). I'd like to calculate averages and sums of the stored values for this activerecord model on a daily basis. All records are stored in UTC. What's the correct way to sum and average values for, e.g., the previous day from midnight to midnight EST? I can do this in sql but don't know the "rails way" to make this calculation.

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  • Does MySQL short-circuit the ORDER BY clause?

    - by nickf
    Given this SQL: SELECT * FROM mytable ORDER BY mycolumn, RAND() Assuming that mycolumn happens to only contain unique values (and hence, contains enough information to perform the ORDER BY), does MySQL short-circuit the operation and skip evaluating the rest?

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  • Version of SQLite used in Android?

    - by Eno
    Reason: Im wondering how to handle schema migrations. The newer SQLite versions support an "ALTER TABLE" SQL command which would save me having to copy data, drop the table, recreate table and re-insert data.

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  • Free PDF viewers in ASP.net

    - by rowmark
    Hello experts, I have many PDF documents in binary format which is in the SQL Server 2008 database. I have a gridview in my ASP.net page. When a user clicks on any ID column of the record I need to open the pdf in the browser. Are there any free PDF viewer controls out there? How can I convert the binary PDF file and display as PDF in the browser. Thanks

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  • Need help in Arshaw Calender

    - by user326780
    i am trying to integrate the jquery Full Calendar (http://arshaw.com/fullcalendar/) in my asp.net mvc application. I need to use this full calendar to add/edit/delete/show the events using the sql server 2005 database as backend. Do anyone have the sample code to implement the fetch, add/edit/delete events with this Full Calendar for c#

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  • how to specify a BIGINT in a rails scaffold?

    - by webdestroya
    I am trying to create a model in ruby that uses a BIGINT datatype (as opposed to the INT done by :integer). I have search all over Google, but all I seem to find is "run an SQL statement to alter the table to a BIGINT" - This seems a bit hack-ish to me, so I wanted to know if there was a way to specify a bigint in the ruby system like :big_int or something Any ideas?

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  • How to display thumbnails with category by category

    - by shin
    http://pastie.org/962429 I have the above SQL. There are three categories, webdesign, logos and prints. I want to display them as following html. http://pastie.org/962432 Basically pulling thumbnail image and name from database category by category. I am not really sure how to do it. I will appreciate any inputs or help. Thanks in advance.

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  • How to update a collection based on another collection in MongoDB?

    - by Sean Zhu
    Now I get two collections: coll01 and coll02. And the structure of coll01 is like this: { id: 01, name: "xxx", age: 30 } and the structure of coll02 is like: { id: 01, name: "XYZ" gender: "male" } The two id fields in the both collection are indices. And the numbers of documents in these two collections are same. And what I want to do in traditional SQL is : update coll01, coll02 set coll01.name = coll02.name where coll01.id = coll02.id

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  • jdbc connection pooling

    - by llm
    Can anybody provide examples or links on how to establish a JDBC connection pool? From searching google I see many different ways of doing this and it is rather confusing. Ultimately I need the code to return a java.sql.Connection object, but I am having trouble getting started..any suggestions welcome.

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  • checkbox update the record using jquery?

    - by python
    <? include("connect.php"); $sql="select * from sampledb"; $res=mysql_query($sql) or die("query failed"); ?> <script type="text/javascript" src="scripts/jquery.js"></script> <script type="text/javascript"> function updateCheckVal() { var valcheck = []; $('#checkbox :checked').each(function() { valcheck.push($(this).val()); }); $('#store_checkbox').val(valcheck) } $(function() { $('#checkbox input').click(updateCheckVal); updateCheckVal(); }); $(function(){ $("a.modify").click(function(){ var val = []; $(':checkbox:checked').each(function(i){ val[i] = $(this).val(); }); $("#deleted_id").val(val); page=$(this).attr("href"); $("#Formcontent").html("loading...").load(page); return false; }); }); </script <form name=""> <table width="100%" border="1" cellpadding="1" cellspacing="1"> <thead> <tr bgcolor="#CCCCCC"> <th></th> <th>ID</th> <th>Fullname</th> </tr> </thead> <tbody> <? while($row=mysql_fetch_assoc($res)){?> <tr> <td id="checkbox"><input type="checkbox" name="chk[]" class="chk" value=<?php echo $row["student_id"];?> ></td> <td><?php echo $row["id"];?></td> <td><?php echo $row["fullname"];?></td> </tr> <? }?> </tbody> </table> <input type="hidden" name="store_checkbox" id="store_checkbox" value=""> <a href="formstudent.php?action=update&id=<?php echo $_POST["store_checkbox"]; ?>" class="modify">modify</a> I want to pass the checkbox value that is checked in something like this: example :formstudent.php?action=update&id=1, I am doing here is pass like this but does not work. <a href="formstudent.php?action=update&id=<?php echo $_POST["store_checkbox"]; ?>" Anybody know how to do this?

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  • Get Unique Results in a query.

    - by Bathan
    Hi guys! Im sure this will be pretty simple for a t-sql guru. I have the following result from a table idMain IdSecondary TextValue 1,1,text1 1,2,text2 2,5,text3 2,6,text5 And I want to obtain the first occurence of the idMain only. THe result should be like this. idMain,idSecondary,TextValue 1,1,text1 2,5,text3 How can I achieve this?

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  • Beginning OS X & iPhone Development: Reference texts

    - by twinbornJoint
    My programming experience is limited to xhtml, css, php, sql and some javascript. The books I have are: Programming in Objective-C 2nd Edition Beginning iPhone Development Cocoa(R) Programming for Mac(R) OS X (Paperback) Is there anything else I will need to get started on my journey into iPhone/OS X development?

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  • What is the fastest method to create a new database from a template ?

    - by Locksfree
    We are creating databases on demand and the databases can be created from different templates. All templates have the same structure but different data. The data contained by the templates is small. What is the fastest way to create a copy of the database: Backup/Restore Using T-SQL ? Using SMO ? Create a new database from a scripted version of the template and then fill in the little data required ? Other ?

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  • MySQL Search Query on two different fields

    - by user181677
    I need to search on two fields using LIKE function and should match also in reverse order. My table uses InnoDB which dont have Full text search. For example, I have users table with first_name and last_name column. I tried this SQL statement but no luck. SELECT CONCAT(first_name, ' ', last_name) as fullname FROM users WHERE fullname LIKE '%doe%';

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  • How do I get results from a link query in the order of IDs that I provide?

    - by Keltex
    I'm looking to get query results back from Linq in the order that I pass IDs to the query. So it would look something like this: var IDs = new int [] { 5, 20, 10 } var items = from mytable in db.MyTable where IDs.Contains(mytable.mytableID) orderby // not sure what to do here select mytable; I'm hoping to get items in the order of IDs (5, 20, 10). (Note this is similar to this question, but I would like to do it in Linq instead of SQL)

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  • Recalculate Counter Cache of 120k Records [Rails / ActiveRecord]

    - by Sebastian
    The following situation: I have a poi model, which has many pictures (1:n). I want to recalculate the counter_cache column, because the values are inconsistent. I've tried to iterate within ruby over each record, but this takes much too long and quits sometimes with some "segmentation fault" bugs. So i wonder, if its possible to do this with a raw sql query?

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  • ASP.NET Compiled vs Uncompiled DB qualifiers

    - by rlb.usa
    We have an ASP.NET application that uses SQL statements, where table names are unqualified. When compiled, it works fine, but when uncompiled, it complains and errors out, saying these tables dont' exist. (Qualified name looks like Select * from MyDatabase.mySchema.MyTable ; Unqualified like Select * from MyTable) If you try these queries on the database, by yourself, it will take only the qualified names. What's going on? I thought Compiled vs Uncompiled apps should perform the same way codewise.

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  • Array within Form collecting multiple values with the same name possible?

    - by JM4
    Good afternoon, I will first start with the goal I am trying to accomplish and then give a very basic sample of what I need to do. Goal Instead of collecting several variables and naming them with keys individually, I have decided to give in and use an array structure to handle all inputs of the same type and rules. Once I have the variables, I will validate against them and if 'ok' store them in a MySQL table. The table will hold consumer information and will need to store multiple rows of the same type of information. First Pass I will leave out the validation portion of this question because I feel I need to first understand the basics. <form action="?" method="POST" name="Form"> Member 1 First Name:<input type="text" name="MemberFirstName[]" /><br /> Member 1 Last Name: <input type="text" name="MemberLastName[]" /><br /> Member 1 Email: <input type="text" name="MemberEmail[]" /><br /> Member 2 First Name:<input type="text" name="MemberFirstName[]" /><br /> Member 2 Last Name: <input type="text" name="MemberLastName[]" /><br /> Member 2 Email: <input type="text" name="MemberEmail[]" /><br /> Member 3 First Name:<input type="text" name="MemberFirstName[]" /><br /> Member 3 Last Name: <input type="text" name="MemberLastName[]" /><br /> Member 3 Email: <input type="text" name="MemberEmail[]" /><br /> <input type="submit" name="submit" value="Continue" /> </form> I am hoping that each input given for First Name (a required field) will generate a unique key for that particular entry and not overwrite any data entered. Because I am carrying information from page to page (checkout form), I am turning the POST variables into SESSION variables then storing in a mysql database in the end. My hope is to have: <?php $conn = mysql_connect("localhost", "username", "password"); mysql_select_db("DBname",$conn); $sql = "INSERT INTO tablename VALUES ('$_SESSION[Member1FirstName]', '$_SESSION[Member1LastName]', '$_SESSION[Member1Email]', '$_SESSION[Member2FirstName]', '$_SESSION[Member2LastName]', '$_SESSION[Member2Email]', '$_SESSION[Member1FirstName]', '$_SESSION[Member3LastName]', '$_SESSION[Member3Email]')"; $result = mysql_query($sql, $conn) or die(mysql_error()); Header ("Location: completed.php"); ?> Where Member1, Member2, and Member3 values will appear on their own row within the table. I KNOW my code is wrong but I am giving a first shot at the overall business purpose I am trying to achieve and trying to learn how to code the right way. I am very, very new to programming so any 'baby advice' is greatly appreciated.

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  • how to specify a BIGINT in a ruby scaffold?

    - by webdestroya
    I am trying to create a model in ruby that uses a BIGINT datatype (as opposed to the INT done by :integer). I have search all over Google, but all I seem to find is "run an SQL statement to alter the table to a BIGINT" - This seems a bit hack-ish to me, so I wanted to know if there was a way to specify a bigint in the ruby system like :big_int or something Any ideas?

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