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• Correct Way to Get Date Between Dates In SQL Server

  - by Chuck Haines

  I have a table in SQL server which has a DATETIME field called Date_Printed. I am trying to get all records in the table which lie between a specified date range. Currently I am using the following SQL DECLARE @StartDate DATETIME DECLARE @EndDate DATETIME SET @StartDate = '2010-01-01' SET @EndDate = '2010-06-18 12:59:59 PM' SELECT * FROM table WHERE Date_Printed BETWEEN @StartDate AND @EndDate I have an index on the Date_Printed column. I was wondering if this is the best way to get the rows in the table which lie between those date or if there is a faster way. The table has about 750,000 records in it right now and it will continue to grow. The query is pretty fast but I'd like to make it faster if possible.

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• Minimizing SQL queries using join with one-to-many relationship

  - by Brian

  So let me preface this by saying that I'm not an SQL wizard by any means. What I want to do is simple as a concept, but has presented me with a small challenge when trying to minimize the amount of database queries I'm performing. Let's say I have a table of departments. Within each department is a list of employees. What is the most efficient way of listing all the departments and which employees are in each department. So for example if I have a department table with: id name 1 sales 2 marketing And a people table with: id department_id name 1 1 Tom 2 1 Bill 3 2 Jessica 4 1 Rachel 5 2 John What is the best way list all departments and all employees for each department like so: Sales Tom Bill Rachel Marketing Jessica John Pretend both tables are actually massive. (I want to avoid getting a list of departments, and then looping through the result and doing an individual query for each department). Think similarly of selecting the statuses/comments in a Facebook-like system, when statuses and comments are stored in separate tables.

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• What is the effect of running an application with "Unlimited Stack" size

  - by NSA

  Hello All, I have inherited some code that I need to maintain that can be less than stable at times. The previous people are no longer available to query as to why they ran the application in an environment with unlimited stack set, I am curious what the effects of this could be? The application seems to have some unpredictable memory bugs that we cannot find and running the application under valgrind is not an option because it slows the application down so much that we cannot actually run it. So any thoughts on what the effects of this might be are appreciated. Thank you.

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• MYSQL : First and last record of a grouped record (aggregate functions)

  - by Jimmy

  I am trying to do fectch the first and the last record of a 'grouped' record. More precisely, I am doing a query like this SELECT MIN(low_price), MAX(high_price), open, close FROM symbols WHERE date BETWEEN(.. ..) GROUP BY YEARWEEK(date) but I'd like to get the first and the last record of the group. It could by done by doing tons of requests but I have a quite large table. Is there a [low processing time if possible] way to do this with MySQL?

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• In-memory Database in Excel

  - by user329174

  Hello, I am looking for a way to import a datatable from Access into an Excel variable and then run queries through this variable to speed up the process. I am trying to migrate from C# .NET where I read a data table from an access database into memory and then used LINQ to query this dataset. It is MUCH faster than how I have it currently coded in VBA where I must make lots of calls to the actual database, which is slow. I have seen the QueryTable mentioned, but it appears that this requires pasting the data into the excel sheet. I would like to keep everything in memory and minimize the interaction between the Excel Sheet and the VBA code as much as possible. I wish we didn't need to use Excel+VBA to do this, but we're kind of stuck with that for now. Thanks for the help!

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• Sharepoint Blog Category view - Pagination issue...

  - by hemalshah

  Folks, I am facing a rather strange issue. In my Sharepoint Blog, I am not able to view more than 10 posts when I click on the Category filter page. The page only shows the latest 10 posts and when I click on the pagination for the next 10, it simply says that "There are no posts in this category." I tried searching online and some one had a solution to it too, but that is with the Query String (URL) Filter which is not available in MOSS2007 Standard edition... How can I get around this? Any help would be greatly appreciated...

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• update contact details on Android

  - by frieza

  I would like my code to update contact details (like name, phone number, email, organization details, etc) in the android contact book. I was successful in modifying a few (name, phone number and email to be specific) but not all. Whenever I try to update the organization details (Contacts.Organizations.COMPANY and Contacts.Organizations.TITLE) for a contact my app throws an exception java.lang.UnsupportedOperationException: Cannot update URL: content://contacts/people/69/organizations/69 the code snippet is as follows: Uri baseUri = ContentUris.withAppendedId(People.CONTENT_URI, 69); Uri uri = Uri.withAppendedPath(baseUri, People.Phones.CONTENT_DIRECTORY); Cursor c = this.getContentResolver().query(uri, new String[] { Contacts.Organizations._ID, Contacts.Organizations.COMPANY,Contacts.Organizations.TITLE}, null, null, null); if(c.getCount() > 0) { uri = ContentUris.withAppendedId(uri, c.getString(0)); ContentValues val1 = new ContentValues(); val1.put(Contacts.Organizations.COMPANY, "arw"); val1.put(Contacts.Organizations.TYPE, Contacts.Organizations.TYPE_WORK); val1.put(Contacts.Organizations.TITLE, "abcdef"); this.getContentResolver().insert(uri, val1);

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• LINQ: How to Use RemoveAll without using For loop with Array

  - by CrimsonX

  I currently have a log object I'd like to remove objects from, based on a LINQ query. I would like to remove all records in the log if the sum of the versions within a program are greater than 60. Currently I'm pretty confident that this'll work, but it seems kludgy: for (int index = 0; index < 4; index++) { Log.RemoveAll(log => (log.Program[index].Version[0].Value + log.Program[index].Version[1].Value + log.Program[index].Version[2].Value ) > 60); } The Program is an array of 4 values and version has an array of 3 values. Is there a more simple way to do this RemoveAll in LINQ without using the for loop? Thanks for any help in advance!

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• MySQL ignores the NOT NULL constraint

  - by Marga Keuvelaar

  I have created a table with NOT NULL constraints on some columns in MySQL. Then in PHP I wrote a script to insert data, with an insert query. When I omit one of the NOT NULL columns in this insert statement I would expect an error message from MySQL, and I would expect my script to fail. Instead, MySQL inserts empty strings in the NOT NULL fields. In other omitted fields the data is NULL, which is fine. Could someone tell me what I did wrong here? I'm using this table: CREATE TABLE IF NOT EXISTS tblCustomers ( cust_id int(11) NOT NULL AUTO_INCREMENT, custname varchar(50) NOT NULL, company varchar(50), phone varchar(50), email varchar(50) NOT NULL, country varchar(50) NOT NULL, ... date_added timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, PRIMARY KEY (cust_id) ) ; And this insert statement: $sql = "INSERT INTO tblCustomers (custname,company) VALUES ('".$customerName."','".$_POST["CustomerCompany"]."')"; $res = mysqli_query($mysqli, $sql);

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• Setting post tags in wordpress via XMLRPC API when submitting a post?

  - by aviv

  Hi, I am trying to use WordPress API via XMLRPC to submit new posts. But i can't set the post tags (nor the categories). echo "Adding $term to blog via XMLRPC ..."; $client = new IXR_Client("http://$blog.wordpress.com/xmlrpc.php"); $content = array('title'=>$term, 'description'=>"All about $term", 'category'=>'barvaz,moshe', 'tags'=>'tag1,tag2'); $client->query('metaWeblog.newPost', 0, $username, $password, $content, true); $rv = $client->getResponse(); print_r($rv); Any idea?

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• Best practices for querying an entire row in a database table? (MySQL / CodeIgniter)

  - by Walker

  Sorry for the novice question! I have a table called cities in which I have fields called id, name, xpos, ypos. I'm trying to use the data from each row to set a div's position and name. What I'm wondering is what's the best practice for dynamically querying an unknown amount of rows (I don't know how many cities there might be, I want to pull the information from all of them) and then passing the variables from the model into the view and then setting attributes with it? Right now I've 'hacked' a solution where I run a different function each time which pulls a value using a query ('SELECT id FROM cities;'), then I store that in a global array variable and pass it into view. I do this for each var so I have arrays called: city_idVar, city_nameVar, city_xposVar, city_yposVar then I know that the city_nameVar[0] matches up with city_xposVar[0] etc. Is there a better way?

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• Curl automatically display the result?

  - by Emily

  I'm using php 5.3.2 and when i execute a curl it display the result directly without adding a print or echo function. Here is my code: <?php $pvars = array('query' => 'ice age', 'orderby' => 'popularity'); $timeout = 30; $myurl = "http://www.website.com"; $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $myurl); curl_setopt($curl, CURLOPT_TIMEOUT, $timeout); curl_setopt($curl, CURLOPT_POST, 1); curl_setopt($curl, CURLOPT_POSTFIELDS, $pvars); $xml = curl_exec($curl); curl_close ($curl); ?> What's wrong with my code and why it displays the result?

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• Get records from Access table

  - by chianta

  On Access 2010 I need to use VBA to get the records in a table, process them and put them in a new table. Could you tell me how can I do? Is there a way similar to C # to put everything into a datatable the result of a query? I found an example on how to get the data. http://pastebin.com/bCtg20jp But it always fails on the first statement "ADODB.Recordset". I went to see the included libraries and library that uses ADODB is already included "Microsoft Access 14.0 Object Library". Thanks

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• .NET SettingsProvider/ApplicationSettingsBase caching

  - by Andy White

  I'm looking at some code that uses the .NET System.Configuration.SettingsProvider and ApplicationSettingsBase to handle configuration. We have a class that derives from SettingsProvider that uses a database as the data store, and then we have other settings classes that inherit from ApplicationSettingsBase, and have the [SettingsProvider(typeof(MySettingsProvider))] attribute. The problem is that we're using these settings classes in multiple applications, but they seem to permanently cache the configuration values, the first time they are loaded. The issue is that if a setting is changed in one application, the other applications will not get the setting until the next restart, because they are cached everywhere. My question is: is there a way to force the SettingsProvider implementation, or the classes derived from ApplicationSettingsBase to not cache values, and re-query the datastore every time the setting is accessed? A valid answer might be that these classes were not intended to be used in multi-application environments...

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• Jasper Sub reports not showing in main report

  - by BlackPanther

  I am having one jasper report.Inside of the that main report I am adding one sub report.I am passing collections and parameters using java class(Not using sql query directly).It is compiling successfully. But while running it shows only main report.It is not showing the sub report.And also it is not making any error. It is just giving some empty space for that place. Can any one tell me how to solve this? What are all the rules I have to follow while adding subreport in jasper?

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• PHP javascript link id

  - by Jordan Pagaduan

  <?php //connect to database .... //select query .... if(isset($_GET["link"])==false){ echo "sample 1"; }else{ echo "sample 2" ; } ?> <script type="javascript"> function Link(id) { location.href='linktest.php&link='+id; } </script> <html> <input type="button" value="link test" onclick="javascript: Link<?php $row['id']; ?>"> </html> (assumed question) How do I force the onclick event to contain the value of $row['id']?

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• MS Sql Full-text search vs. LIKE expression

  - by Marks

  Hi. I'm currently looking for a way to search a big database (500MB - 10GB or more on 10 tables) with a lot of different fields(nvarchars and bigints). Many of the fields, that should be searched are not in the same table. An example: A search for '5124 Peter' should return all items, that ... have an ID with 5124 in it, have 'Peter' in the title or description have item type id with 5124 in it created by a user named 'peter' or a user whose id has 5124 in it created by a user with '5124' or 'peter' in his street address. How should i do the search? I read that the full-text search of MS-Sql is a lot more performant than a query with the LIKE keyword and i think the syntax is more clear, but i think it cant search on bigint(id) values and i read it has performance problems with indexing and therefore slows down inserts to the DB. In my project there will be more inserting than reading, so this could be a matter. Thanks in advance, Marks

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• Extremely slow insert from Delphi to Remote MySQL Database

  - by MarkRobinson

  Having a major hair-pulling issue with extremely slow inserts from Delphi 2010 to a remote MySQL 5.09 server. So far, I have tried: ADO using MySQL ODBC Driver Zeoslib v7 Alpha I have used batching and direct insert with ADO (using table access), and with Zeos I have used SQL insertion with a Query, then used Table direct mode and also cached updates Table mode using applyupdates and commit. Both technologies I have tried with compression on and off. So far I have seen a pretty much the same across the board 7.5 records per second!!! Now, I would from this point assume that the remote server is just slow, but the MySQL Workbench is amazingly fast, and the Migration toolkit managed the initial migration very quickly (to be honest, I don't recall how quickly - which kind of means that it was quick) I'm just about to try the MyDAC components as we already use SDAC (wish there was a multi-buy discount or that we'd chosen UniDAC instead now!) Any ideas?

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• NHibernate - is property lazy loading possible?

  - by Ben

  I've got some binary data that I store and was going to separate this out into a separate table so it could be lazy loaded. However, i then came across this post by Ayende (http://ayende.com/Blog/archive/2010/01/27/nhibernate-new-feature-lazy-properties.aspx) which suggests that property lazy loading is now possible. I have added the lazy="true" attribute to my property mapping but the field is still loaded from the database (I am using a simple text field to test). My query: return _session.CreateQuery("from Product") .SetMaxResults(1) .UniqueResult<Product>(); Mapping: <property name="Description" type="string" column="FullDescription" lazy="true"/> Has anyone been able to get this working? Personally I prefer this approach than having to add another table to my database.

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• How to print a JTable header in two lines?

  - by Eruls

  Program is to print a JTabel and used function is JTabel jt=new JTable(); MessageFormat headerFormat= new MessageFormat("My World Tomorrow"); MessageFormat footerFormat = new MessageFormat("Page {0}"); jt.Print(JTabel.Format,headerFormat,footerFormat); Query is: How to print the header in two lines that is My World Tomorrow Tired following solutions: new MessageFormat("My world \n Tomorrow"); new MessageFormat("My world \r\n Tomorrow"); new MessageFormat("My world" System.getProperty("line.separator")+"Tomorrow" ); Nothing works.

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• Access container page of a component in .net based CT

  - by Huston Lopes

  We are developing a .net based CT based on Broker query Mechanism (filter): ComponentPresentationAssembler cpAssembler = new ComponentPresentationAssembler(Page ID,Page object); In order to pass the page ID, I need to get the access of page on which the component is present. How can I access the page from package? Since this a CT, a component object would be available in page and not a page object. Tried the following piece of code, but without success: string pageURI = _package.GetValue("Page.ID"); Page objPage = (Page)_engine.GetSession().GetObject(pageURI); This is not working as there is no page object. What are the alternatives so that we can access the parent page of component from CT?

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• How to create a backup from SqlAlchemy?

  - by swilliams

  I'm writing a Pylons app, and am trying to create a simple backup system where every table is serialized and tarred up into a single file for an administrator to download, and use to restore the app should something bad happen. I can serialize my table data just fine using the SqlAlchemy serializer, and I can deserialize it fine as well, but I can't figure out how to commit those changes back to the database. In order to serialize my data I am doing this: from myproject.model.meta import Session from sqlalchemy.ext.serializer import loads, dumps q = Session.query(MyTable) serialized_data = dumps(q.all()) In order to test things out, I go ahead and truncation MyTable, and then attempt to restore using serialized_data: from myproject.model import meta restore_q = loads(serialized_data, meta.metadata, Session) This doesn't seem to do anything... I've tried calling a Session.commit after the fact, individually walking through all the objects in restore_q and adding them, but nothing seems to work. What am I missing? Or is there a better way to do what I'm aiming for? I don't want to shell out and directly touch the database, since SqlAlchemy supports different database engines.

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• Load data from CSV to mySQL database Java+hibernate+spring

  - by mona

  I am trying to load a CSV file in to mySQL database using Java+Hibernate+Spring. I am using the following query in the DAO to help me load in to the database: entityManager.createQuery("LOAD DATA INFILE :fileName INTO TABLE test").setParameter("fileName", "C:\\samples\\test\\abcd.csv").executeUpdate(); I got some idea to use this from http://dev.mysql.com/doc/refman/5.1/en/load-data.html and how to import a csv file into a mysql from an hibernate+spring application? But I am getting the error: java.lang.IllegalArgumentException: node to traverse cannot be null! Please help! Thanks

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• Replace into equivalent for postgresql and then autoincrementing an int

  - by Mohamed Ikal Al-Jabir

  Okay no seriously, if a postgresql guru can help out I'm just getting started. Basically what I want is a simple table like such: CREATE TABLE schema.searches ( search_id serial NOT NULL, search_query character varying(255), search_count integer DEFAULT 1, CONSTRAINT pkey_search_id PRIMARY KEY (search_id) ) WITH ( OIDS=FALSE ); I need something like REPLACE INTO for mysql. I don't know if I have to write my own procedure or something? Basically: check if the query already exists if so, just add 1 to the count it not, add it to the db I can do this in my php code but I'd rather all that be done in postgres C engine Thanks for helping

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• LINQ to SQL repository - caching data

  - by creativeincode

  I have built my first MVC solution and used the repository pattern for retrieving/inserting/updating my database. I am now in the process of refactoring and I've noticed that a lot of (in fact all) the methods within my repository are hitting the database everytime. This seems overkill and what I'd ideally like is to do is 'cache' the main data object e.g. 'GetAllAdverts' from the database and to then query against this cached object for things like 'FindAdvert(id), AddAdvert(), DeleteAdvert() etc..' I'd also need to consider updating/deleting/adding records to this cache object and the database. What is the best apporoach for something like this? My knowledge of this type of things is minimal and really looking for advice/guidance/tutorial to point me in the right direction. Thanks in advance.

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