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  • How do I do proximity search in Oracle right?

    - by hko19
    Oracle's NEAR operator for full text search returns a score based on the proximity of two or more query terms. For example: near((dog, bite), 6) matches if 'dog' and 'bite' occurs within 6 words. What if I'd like it to match if either 'dog' or 'cat' or any other type of animal occurs within 6 words of the word 'bite'? I tried: near(((dog OR cat OR animal), bite), 6) but I got: NEAR operand not a phrase, equivalence or another NEAR expression Rather than expanding all possible combination into multiple NEAR and 'or' them together, what is the proper way to write such query?

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  • update query with join on two tables

    - by dba_query
    I have customer and address tables. query: select * from addresses a, customers b where a.id = b.id returns 474 records For these records, I'd like to add the id of customer table into cid of address table. Example: If for the first record the id of customer is 9 and id of address is also 9 then i'd like to insert 9 into cid column of address table. I tried: update addresses a, customers b set a.cid = b.id where a.id = b.id but this does not seem to work.

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  • Which of these queries is preferable?

    - by bread
    I've written the same query as a subquery and a self-join. Is there any obvious argument for one over the other here? SUBQUERY: SELECT prod_id, prod_name FROM products WHERE vend_id = (SELECT vend_id FROM products WHERE prod_id = ‘DTNTR’); SELF-JOIN: SELECT p1.prod_id, p1.prod_name FROM products p1, products p2 WHERE p1.vend_id = p2.vend_id AND p2.prod_id = ‘DTNTR’;

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  • Deleting rows from different tables

    - by Ross
    Here is what i'm trying to do: Delete the project from projects table and all the images associated with that project in the images table Lets say $del_id = 10 DELETE FROM projects, images WHERE projects.p_id = '$del_id' AND images.p_id = '$del_id' What is wrong with this query

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  • Check for active connection in NHibernate

    - by Dofs
    I have a system with a few different databases, and I would like to check if a certain database is down, and if so display a message to the user. Is it possible in NHibernate to check if there is an active connection to the database, without having to request data and then catch the exception?

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  • What would be the best schema to store the 'address' for different entities?

    - by Cesar
    Suppose we're making a system where we have to store the addrees for buildings, persons, cars, etc. The address 'format' should be something like: State (From a State list) County (From a County List) Street (free text, like '5th Avenue') Number (free text, like 'Chrysler Building, Floor 10, Office No. 10') (Yes I don't live in U.S.A) What would be the best way to store that info: Should I have a Person_Address, Car_Address, ... Or the address info should be in columns on each entity, Could we have just one address table and try to link each row to a different entity? Or are there another 'better' way to handle this type of scenario? How would yo do it?

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  • Query a recordset

    - by Dion
    I'm trying to work out how to move the $sql_pay_det query outside of the $sql_pay loop (so in effect query on $rs_pay_det rather than creating a new $rs_pay_det for each iteration of the loop) At the moment my code looks like: //Get payroll transactions $sql_pay = 'SELECT Field1, DescriptionandURLlink, Field5, Amount, Field4, PeriodName FROM tblgltransactionspayroll WHERE CostCentreCode = "'.$cc.'" AND SubjectiveCode = "'.$subj.'" AND PeriodNo = "'.$month.'"'; $rs_pay = mysql_query($sql_pay); $row_pay = mysql_fetch_assoc($rs_pay); while($row_pay = mysql_fetch_array($rs_pay)) { $employee_name = $row_pay['Field1']; $assign_no = $row_pay['DescriptionandURLlink']; $pay_period = $row_pay['Field5']; $mth_name = $row_pay['PeriodName']; $amount = $row_pay['Amount']; $total_amount = $total_amount + $amount; $amount = my_number_format($amount, 2, ".", ","); $sql_pay_det = 'SELECT ElementDesc, Amount, WTEWorked, WTEPaid, WTEContract, Payscale FROM tblpayrolldetail WHERE CostCentreCode = "'.$cc.'" AND SubjectiveCode = "'.$subj.'" AND AccountingPeriod = "'.$mth_name.'" AND EmployeeRef = "'.$assign_no.'"'; $rs_pay_det = mysql_query($sql_pay_det); $row_pay_det = mysql_fetch_assoc($rs_pay_det); while($row_pay_det = mysql_fetch_array($rs_pay_det)) { $element_det = $row_pay_det['ElementDesc']; $amount_det = $row_pay_det['Amount']; $wte_worked = $row_pay_det['WTEWorked']; $wte_paid = $row_pay_det['WTEPaid']; $wte_cont = $row_pay_det['WTEContract']; $payscale = $row_pay_det['Payscale']; //Get band/point and annual salary where element is basic pay if ($element_det =="3959#Basic Pay"){ $sql_payscale = 'SELECT txtPayscaleName, Salary FROM tblpayscalemapping WHERE txtPayscale = "'.$payscale.'"'; $rs_payscale = mysql_query($sql_payscale); $row_payscale = mysql_fetch_assoc($rs_payscale); $grade = $row_payscale['txtPayscaleName']; $salary = "£" . my_number_format($row_payscale['Salary'], 0, ".", ","); } } } I've tried doing this: //Get payroll transactions $sql_pay = 'SELECT Field1, DescriptionandURLlink, Field5, Amount, Field4, PeriodName FROM tblgltransactionspayroll WHERE CostCentreCode = "'.$cc.'" AND SubjectiveCode = "'.$subj.'" AND PeriodNo = "'.$month.'"'; $rs_pay = mysql_query($sql_pay); $row_pay = mysql_fetch_assoc($rs_pay); //Get payroll detail recordset $sql_pay_det = 'SELECT ElementDesc, Amount, WTEWorked, WTEPaid, WTEContract, Payscale, EmployeeRef FROM tblpayrolldetail WHERE CostCentreCode = "'.$cc.'" AND SubjectiveCode = "'.$subj.'" AND AccountingPeriod = "'.$mth_name.'"'; $rs_pay_det = mysql_query($sql_pay_det); while($row_pay = mysql_fetch_array($rs_pay)) { $employee_name = $row_pay['Field1']; $assign_no = $row_pay['DescriptionandURLlink']; $pay_period = $row_pay['Field5']; $mth_name = $row_pay['PeriodName']; $amount = $row_pay['Amount']; $total_amount = $total_amount + $amount; $amount = my_number_format($amount, 2, ".", ","); //Query $rs_pay_det $sql_pay_det2 = 'SELECT ElementDesc, Amount, WTEWorked, WTEPaid, WTEContract, Payscale FROM "'.$rs_pay_det.'" WHERE EmployeeRef = "'.$assign_no.'"'; $rs_pay_det2 = mysql_query($sql_pay_det2); $row_pay_det2 = mysql_fetch_assoc($rs_pay_det2); while($row_pay_det = mysql_fetch_array($rs_pay_det)) { $element_det = $row_pay_det['ElementDesc']; $amount_det = $row_pay_det['Amount']; $wte_worked = $row_pay_det['WTEWorked']; $wte_paid = $row_pay_det['WTEPaid']; $wte_cont = $row_pay_det['WTEContract']; $payscale = $row_pay_det['Payscale']; //Get band/point and annual salary where element is basic pay if ($element_det =="3959#Basic Pay"){ $sql_payscale = 'SELECT txtPayscaleName, Salary FROM tblpayscalemapping WHERE txtPayscale = "'.$payscale.'"'; $rs_payscale = mysql_query($sql_payscale); $row_payscale = mysql_fetch_assoc($rs_payscale); $grade = $row_payscale['txtPayscaleName']; $salary = "£" . my_number_format($row_payscale['Salary'], 0, ".", ","); } } } But I get an error on $row_pay_det2 saying that "mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource"

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  • sqlite3.OperationalError: database is locked - non-threaded application

    - by James C
    Hi, I have a Python application which throws the standard sqlite3.OperationalError: database is locked error. I have looked around the internet and could not find any solution which worked (please note that there is no multiprocesses/threading going on, and as you can see I have tried raising the timeout parameter). The sqlite file is stored on the local hard drive. The following function is one of many which accesses the sqlite database, and runs fine the first time it is called, but throws the above error the second time it is called (it is called as part of a for loop in another function): def update_index(filepath): path = get_setting('Local', 'web') stat = os.stat(filepath) modified = stat.st_mtime index_file = get_setting('Local', 'index') connection = sqlite3.connect(index_file, 30) cursor = connection.cursor() head, tail = os.path.split(filepath) cursor.execute('UPDATE hwlive SET date=? WHERE path=? AND name=?;', (modified, head, tail)) connection.commit() connection.close() Many thanks.

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  • acts-as-taggable-on: find tags with name LIKE, sort by tag_counts?

    - by James
    Hi I'm using the rails plugin acts-as-taggable-onand I'm trying to find the top 5 most used tags whose names match and partially match a given query. When I do User.skill_counts.order('count DESC').limit(5).where('name LIKE ?', params[:query]) This return the following error: ActiveRecord::StatementInvalid: SQLite3::SQLException: ambiguous column name: name: SELECT tags.*, COUNT(*) AS count FROM "tags" INNER JOIN users ON users.id = taggings.taggable_id LEFT OUTER JOIN taggings ON tags.id = taggings.tag_id AND taggings.context = 'skills' WHERE (taggings.taggable_type = 'User') AND (taggings.taggable_id IN(SELECT users.id FROM "users")) AND (name LIKE 'asd') GROUP BY tags.id, tags.name HAVING COUNT(*) > 0 ORDER BY count DESC LIMIT 5 But when I do User.skill_counts.first.name this returns "alliteration" I'd appreciate any help on this matter.

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  • Double Inner Join generates unexpected error

    - by Itamar Marom
    In my database I have three tables: Users: UserID (Auto Numbering), UserName, UserPassword and a few other unimportant fields. PrivateMessages: MessageID (Auto Numbering), SenderID and a few other fields defining the message content. MessageStatus: MessageID, ReceiverID, MessageWasRead (Boolean) What I need is a query to which I input a user's id and I get all the private messages he has received. In addition, I also need to receive each message's sender UserName. For this I wrote the following query: SELECT Users.*, PrivateMessages.*, MessageStatus.* FROM PrivateMessages INNER JOIN Users ON PrivateMessages.SenderID = Users.UserID INNER JOIN MessageStatus ON PrivateMessages.MessageID = MessageStatus.MessageID WHERE MessageStatus.ReceiverID=[@userid]; But for some reason when I try saving it in my Access database, I get the following error (translated to English by me, since my office is in a different language): Syntax error (missing operator) at expression: "PrivateMessages.SenderID = Users.UserID INNER JOIN MessageStatus ON PrivateMessages.MessageID = MessageStatus.MessageI". Any ideas what could cause this? Thanks.

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  • Does Table.InsertOnSubmit create a copy of the original table?

    - by Bryan
    Using InsertOnSubmit seems to have some memory overhead. I have a System.Data.Linq.Table<User> table. When I do table.InsertOnSubmit(user) and then int count = table.Count(), the memory usage of my application increases by roughly the size of the User table, but the count is the number of items before user was inserted. So I'm guess an enumeration after InsertOnSubmit will create a copy of the table. Is that true?

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  • jpa join query on a subclass

    - by Brian
    I have the following relationships in JPA (hibernate). Object X has two subclasses, Y and Z. Object A has a manyToOne relationship to object X. (Note, this is a one-sided relationship so object X cannot see object A). Now, I want to get the max value of a column in object A, but only where the relationship is of a specific subtype, ie...Y. So, that equates to...get the max value of column1 in object A, across all instances of A where they have a relationship with Y. Is this possible? I'm a bit lost as how to query it. I was thinking of something like: String query = "SELECT MAX(a.columnName) FROM A a join a.x; Query query = super.entityManager.createQuery(query); query.execute(); However that doesn't take account of the subclass of X...so I'm a bit lost. Any help would be much appreciated.

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  • Foreign Keys and Primary Keys at the same time

    - by Bader
    hello , i am trying to create table (orderdetails) , the table has two FKs and PKs at the same keys here is my code create table OrderDetails2 ( PFOrder_ID Number(3) PFProduct_ID Number(3) CONSTRAINT PF PRIMARY KEY (PFOrder_ID,PFProduct_ID), CONSTRAINT FK_1 FOREIGN KEY (PFProudct_ID) REFERENCES Product(Product_ID), CONSTRAINT FK_2 FOREIGN KEY (PFOrder_ID) REFERENCES Orderr(Order_ID) ); i am using Oracle express , a problem pops when i run the code , here is it ORA-00907: missing right parenthesis what is the problem ?

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  • Increase and decrease row value by 1 in MySQL

    - by Elliott
    Hi I have a MySQL database table "points" the user can click a button and a point should be removed from their account, the button they pressed has an ID of another user, therefore their account must increase by one. I have it working in jQuery and checked the varibles/posts in Firebug, and it does send the correct data, such as: userid= 1 posterid = 4 I think the problem is with my PHP page: <?php include ('../functions.php'); $userid=mysql_real_escape_string($_POST['user_id']); $posterid=mysql_real_escape_string($_POST['poster_id']); if (loggedin()) { include ('../connection.php'); $query1 = "UPDATE `points` SET `points` = `points` - 1 WHERE `userID` = '$userid'"; $result1=mysql_query($query1); $query2 = "UPDATE `points` SET `points` = `points` + 1 WHERE `userID` = '$posterid'"; $result2=mysql_query($query2); if ($result1 && result2) { echo "Successful"; return 1; } else { echo mysql_error(); return 0; } } ?> Any ideas? Thanks :)

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  • Select 2 Rows from Table when COUNT of another table

    - by Marcus
    Here is the code that I currently have: SELECT `A`.* FROM `A` LEFT JOIN `B` ON `A`.`A_id` = `B`.`value_1` WHERE `B`.`value_2` IS NULL AND `B`.`userid` IS NULL ORDER BY RAND() LIMIT 2 What it currently is supposed to do is select 2 rows from A when the 2 rows A_id being selected are not in value_1 or value_2 in B. And the rows in B are specific to individual users with userid. What I need to do is make it also so that also checks if there are already N rows in B matching a A_id (either in value_1, or value_2) and userid, and if there are more than N rows, it doesn't select the A row.

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  • sql data source

    - by George
    I have a table (EmployeeID,EmployeeName,ManagerID) How can I create a sqldatasource to include the ManagerName from the EmployeeName given EmployeeID = ManagerID? In my gridview after dragging a dropdownlist what bindings should I do to display the managerName? Is it possible to use it without writing custom select,insert,delete,update? If not what are the steps I need to do to write the whole thing i.e. custom grid and source? Thank you very much

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  • How to store MySQL query results in another Table?

    - by Taz
    How to store results from following query into another table. Considering there is an appropriate table already created. SELECT labels.label,shortabstracts.ShortAbstract,images.LinkToImage,types.Type FROM ner.images,ner.labels,ner.shortabstracts,ner.types WHERE labels.Resource=images.Resource AND labels.Resource=shortabstracts.Resource AND labels.Resource=types.Resource;

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  • Update with inner join ?

    - by phenevo
    I have two databases: DB1 and DB2 How to do something like: update myServer.DB1.dbo.hotels.Name = myServer.DB2.dbo.hotels.Name join myServer.DB2.dbo.hotels on myServer.DB2.dbo.hotels.Code= myServer.DB1.dbo.hotels.Code where myServer.DB2.dbo.hotels.CountryCoe != myServer.DB1.dbo.hotels.CountryCode

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  • Why can't you return a List from a Compiled Query?

    - by Andrew
    I was speeding up my app by using compiled queries for queries which were getting hit over and over. I tried to implement it like this: Function Select(ByVal fk_id As Integer) As List(SomeEntity) Using db As New DataContext() db.ObjectTrackingEnabled = False Return CompiledSelect(db, fk_id) End Using End Function Shared CompiledSelect As Func(Of DataContext, Integer, List(Of SomeEntity)) = _ CompiledQuery.Compile(Function(db As DataContext, fk_id As Integer) _ (From u In db.SomeEntities _ Where u.SomeLinkedEntity.ID = fk_id _ Select u).ToList()) This did not work and I got this error message: Type : System.ArgumentNullException, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 Message : Value cannot be null. Parameter name: value However, when I changed my compiled query to return IQueryable instead of List like so: Function Select(ByVal fk_id As Integer) As List(SomeEntity) Using db As New DataContext() db.ObjectTrackingEnabled = False Return CompiledSelect(db, fk_id).ToList() End Using End Function Shared CompiledSelect As Func(Of DataContext, Integer, IQueryable(Of SomeEntity)) = _ CompiledQuery.Compile(Function(db As DataContext, fk_id As Integer) _ From u In db.SomeEntities _ Where u.SomeLinkedEntity.ID = fk_id _ Select u) It worked fine. Can anyone shed any light as to why this is? BTW, compiled queries rock! They sped up my app by a factor of 2.

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  • Will MySql caching cause performance problems?

    - by Camran
    I am about to upload my website onto a VPS. It is a classifieds website, where all data is stored in MySql and Solr. I wonder if when using MySql:s cache, the server will slow down? Ie, if somebody makes a search for the first time, and MySql is to cache the query, will the caching make the server slower than if it would not cache anything? After the caching is done I know things will improve in terms of performance... But I would like to know if I should even use the cache or not, what do you think? Thanks

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