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  • Oracle: Insertion on an indexed table, avoiding duplicates. Looking for tips and advice.

    - by Tom
    Hi everyone, Im looking for the best solution (performance wise) to achieve this. I have to insert records into a table, avoiding duplicates. For example, take table A Insert into A ( Select DISTINCT [FIELDS] from B,C,D.. WHERE (JOIN CONDITIONS ON B,C,D..) AND NOT EXISTS ( SELECT * FROM A ATMP WHERE ATMP.SOMEKEY = A.SOMEKEY ) ); I have an index over A.SOMEKEY, just to optimize the NOT EXISTS query, but i realize that inserting on an indexed table will be a performance hit. So I was thinking of duplicating Table A in a Global Temporary Table, where I would keep the index. Then, removing the index from Table A and executing the query, but modified Insert into A ( Select DISTINCT [FIELDS] from B,C,D.. WHERE (JOIN CONDITIONS ON B,C,D..) AND NOT EXISTS ( SELECT * FROM GLOBAL_TEMPORARY_TABLE_A ATMP WHERE ATMP.SOMEKEY = A.SOMEKEY ) ); This would solve the "inserting on an index table", but I would have to update the Global Temporary A with each insertion I make. I'm kind of lost here, Is there a better way to achieve this? Thanks in advance,

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  • Database Logon Error in crystal report

    - by yasar arafat
    am really very dumb as this problem is being answered so many times but eally its above my head. i dont have any idea about working with crystal reports or asp.net but due to some reason i have to work on it. after trying very hard i m able to design on crystal report connecting it with mysql database. now when i see in the crystalreport preview i am able to see the report and the data ![enter image description here][1] but when i try to run it on server it says database logon failed![enter image description here][2] now i really dont know what to do i am pasting my aspx and aspx.vb code here and please repley in english not computer language believe me i m super dumb enter code here aspx codes <%@ Page Title="" Language="VB" MasterPageFile="~/Master/Site.master"AutoEventWireup="false" CodeFile="ManHourCostExpenditure.aspx.vb" Inherits="ManHourCostExpenditure" %> <%@ Register assembly="CrystalDecisions.Web, Version=13.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304" namespace="CrystalDecisions.Web" tagprefix="CR" %> <asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server"> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" Runat="Server"> <CR:CrystalReportViewer ID="CrystalReportViewer1" runat="server" AutoDataBind="True" EnableDatabaseLogonPrompt="False" EnableParameterPrompt="False" GroupTreeImagesFolderUrl="" Height="1202px" ReportSourceID="CrystalReportSource1" ToolbarImagesFolderUrl="" ToolPanelView="None" ToolPanelWidth="200px" Width="903px" BorderColor="#660033" BorderStyle="Solid" BorderWidth="1px" HasCrystalLogo="False" /> <CR:CrystalReportSource ID="CrystalReportSource1" runat="server"> <Report FileName="CrDiscProjManHoursActVsEst.rpt"> </Report> </CR:CrystalReportSource> </asp:Content> aspxdotvb codes Imports CrystalDecisions.CrystalReports.Engine Imports CrystalDecisions.Shared Imports CrystalDecisions.Enterprise Imports CrystalDecisions.ReportSource Imports CrystalDecisions.Web Imports CrystalDecisions.Windows.Forms Imports MySql Imports MySql.Data Imports MySql.Data.MySqlClient Imports System.Collections Imports System.Collections.Generic Imports System.Text Imports CrystalDecisions Imports CrystalDecisions.CrystalReports Imports CrystalReportsReportDefModelLib Partial Class ManHourCostExpenditure Inherits System.Web.UI.Page Dim CrRpt As New CrystalDecisions.CrystalReports.Engine.ReportDocument Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Dim StrConn As String = "SERVER=localhost;DATABASE=fluor;UID=root; PWD=root;" Dim Conn As New MySqlConnection(StrConn) Conn.Open() Dim CrRpt As New CrystalDecisions.CrystalReports.Engine.ReportDocument 'Session.Add("REPORT_KEY", CrRpt) CrRpt.Load(Server.MapPath("CrManHourCostExpenditure.rpt")) CrRpt.PrintOptions.PaperOrientation = PaperOrientation.Landscape 'If IsPostBack Then ' CrRpt = CType(Session.Item("REPORT_KEY"), Group) ' CrystalReportViewer1.ReportSource = CrRpt 'End If CrystalReportViewer1.ReportSource = CrRpt 'CrystalReportViewer1.DataBind() CrystalReportViewer1.RefreshReport() Conn.Close() 'CrRpt.Close() 'CrRpt.Dispose() End Sub Protected Sub Page_Unload(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Unload 'CrystalReportViewer1.ReportSource.Close() CrRpt.Close() CrRpt.Dispose() End Sub 'Protected Sub CrystalReportViewer1_Unload(ByVal sender As Object, ByVal e As System.EventArgs) Handles CrystalReportViewer1.Unload ' CrRpt.Close() ' CrRpt.Dispose() 'End Sub End Class please help me. thanks in advance.... yasir

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  • Zend database query result converts column values to null

    - by David Zapata
    Hi again. I am using the next instructions to get some registers from my Database. Create the needed models (from the params module): $obj_paramtype_model = new Params_Model_DbTable_Paramtype(); $obj_param_model = new Params_Model_DbTable_Param(); Getting the available locales from the database // This returns a Zend_Db_Table_Row_Abstract class object $obj_paramtype = $obj_paramtype_model->getParamtypeByValue('available_locales'); // This is a query used to add conditions to the next sentence. This is executed from the Params_Model_DbTable_Param instance class, that depends from Params_Model_DbTable_Paramtype class (reference map and dependentTables arrays are fine in both classes) $obj_select = $this->select()->where('deleted_at IS NULL')->order('name'); // Execute the next query, applying the select restrictions. This returns a Zend_Db_Table_Rowset_Abstract class object. This means "Find Params by Paramtype" $obj_params_rowset = $obj_paramtype->findDependentRowset('Params_Model_DbTable_Param', 'Paramtype', $obj_paramtype); // Here the firebug log displays the queries.... Zend_Registry::get('log')->debug($obj_params_rowset); I have a profiler for all my DB executions from Zend. At this point the log and profiler objects (that includes Firebug writers), shows the executed SQL Queries, and the last line displays the resulting Zend_Db_Table_Rowset_Abstract class object. If I execute the SQL Queries in some MySQL Client, the results are as expected. But the Zend Firebug log writer displays as NULL the column values with latin characters (ñ). In other words, the external SQL client shows es_CO | Español de Colombia and en_US | English of United States but the Query results from Zend displays (and returns) es_CO | null and en_US | English of United States. I've deleted the ñ character from Español de Colombia and the query results are just fine in my Zend Log Firebug screen, and in the final Zend Form element. The MySQL database, tables and columns are in UTF-8 - utf8_unicode_ci collation. All my zend framework pages are in UTF-8 charset. I'm using XAMPP 1.7.1 (PHP 5.2.9, Apache at port 90 and MySQL 5.1.33-community) running on Windows 7 Ultimate; Zend Framework 1.10.1. I'm sorry if there is so much information, but I don't really know why could that happen, so I tryed to provide as much related information as I could to help to find some answer.

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  • Which third party tools/library are available for NoSQL databases?

    - by Horcrux7
    I know that NoSQL databases are very new. I am also new in this point. But exist already tools/libraries to make the life easer like for SQL databases? I think on tools for managing, maintaining, viewing or reporting of the data. There can also be libraries for easer working with the database or an abstract database layer to change the database later. I would prefer Java libraries but also other are interesting.

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  • dilemma about mysql. using condition to limit load on a dbf

    - by ondrobaco
    hi, I have a table of about 800 000 records. Its basically a log which I query often. I gave condition to query only queries that were entered last month in attempt to reduce the load on a database. My thinking is a) if the database goes only through the first month and then returns entries, its good. b) if the database goes through the whole database + checking the condition against every single record, it's actually worse than no condition. What is your opinion? How would you go about reducing load on a dbf?

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  • Cannot connect to local database.

    - by Smickie
    Hi, I have apache and mysql set up on my local machine (Mac). Whenever I go to any of my local sites I get the "Error establishing a database connection" whenever anything mySql related happens. It was working perfectly yesterday, but when I started my computer today it is not. I can login to mysql on the terminal and that all works fine, I can view database and run queries in the terminal. Look at all my table etc. I've tried restarting apache. Anyone know what's up? This is worrying.

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  • Normalization of database for timesheet tool and ensure data integrity

    - by fireeyedboy
    I'm creating a timesheet application. I have the following entities (amongst others): Company Employee = an employee associated with a company Client = a client associated with a company So far I have the following (abbreviated) database setup: Company - id - name Employee - id - companyId (FK to Company.id) - name Client - id - companyId (FK to Company.id) - name Now, I want an employee to be associated with a client, but only if that client is associated with the company the employee works for. How would you guarantee this data integrity on a database level? Or should I just depend on the application to guarantee this data integrity? I thought about creating a many to many table like this: EmployeeClient - employeeId (FK to Employee.id) - companyId \ (combined FK to Client.companyId, Client.id) - clientId / Thus, when I insert a client for an employee along with the employee's company id, the database should prevent this when the client is not associated with the employee's company id. Does this make sense? Because this still doesn't guarantee the employee is associated with the company. How do you deal with these things? UPDATE The scenario is as followed: A company has multiple employees. Employees will only be linked to one company. A company has multiple clients also. Clients will only be linked to one company. (Company is a sandbox, so to speak). An employee of a company can be linked to a client of it's company, but only if the client is part of the company's clientele. In other words: The application will allow a company to create/add employees and create/add clients (hence the companyId FK in the Employee and Client tables). Next, the company will be allowed to assign certain clients to certain of it's employees (EmployeeClient table). Imagine an employee working on projects for a few clients for which s/he can write billable hours, but the employee must not be allowed to write billable hours for clients they are not assigned to by their employer (the company). So, employees will not automatically have access to all their company's clients, but only to those that the company has selected for them. Hopefully this has shed some more light on the matter.

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  • Any good SQL Anywhere database schema comparison tools?

    - by Lurker Indeed
    Are there any good database schema comparison tools out there that support Sybase SQL Anywhere version 10? I've seen a litany of them for SQL Server, a few for MySQL and Oracle, but nothing that supports SQL Anywhere correctly. I tried using DB Solo, but it turned all my non-unique indexes into unique ones, and I didn't see any options to change that.

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  • Oracle Application Server 10.1.3.5 Security issue.

    - by Marius Bogdan IONESCU
    Hello! we are tying to port a J2EE app from OAS 9.0.4 (working perfectly) on OAS 10.1.3.5 the reson we do that is because we need the app compiled with java 1.5 and OAS 10.1.3.5 would be the single major version supporting that binaries which has oc4j/orion kernel. The issue is that the security constraints in matter of user/group/role are not read by the app server, and instead of asking for these sets of users, i have to use the oc4jadmin instead the selected users for auth. All xml files needed for describing these sets of rules are being checked with the OAS book, and it seems they are correctly filled in... anybody has an idea about this?

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  • Oracle: how to use updateXML to update multiple nodes in a document?

    - by Alessandro Vernet
    I can write: update my_table set xml = updateXML(xml, '/a/b', '1') where document_id = 123 Now what if in the same update query I also want to set /a/c to 2 (in addition /a/b to 1)? I am tempted to write: update my_table set xml = updateXML(xml, '/a/b', '1'), xml = updateXML(xml, '/a/c', '2') where document_id = 123 But this give me a "ORA-00957: duplicate column name". Any suggestion on how to do this?

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  • Unable to retrieve data from SQLite database iOS6.0

    - by kunalg
    When i run build ios5.0 or less then Sqlite response correct and retrieve data its work fine but when run on ios6.0 i am trying to fetch data from my.sqlite database but it is not executing my if case. It always enters in else condition. What wrong thing i am doing? I am not able to execute my if case i.e. if(sqlite3_prepare_v2(database, sqlQuerry, -1, &querryStatement, NULL)==SQLITE_OK). for reference check this code . NSLog(@"sqlite3_prepare_v2 = %d SQLITE_OK %d ",sqlite3_prepare_v2(sqlite, [strQuery UTF8String], -1, &compiledStatement, nil),SQLITE_OK); if(sqlite3_prepare_v2(sqlite, [strQuery UTF8String], -1, &compiledStatement, nil)==SQLITE_OK) { NSLog(@"sqlite3_step = %d SQLITE_ROW %d ",sqlite3_step(compiledStatement),SQLITE_ROW); while (sqlite3_step(compiledStatement)==SQLITE_ROW) { if(sqlite3_column_text(compiledStatement, 2) != nil) modelObj.Name = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 2)]; } } else { } ////////// in ios6.0 log Print sqlite3_prepare_v2 = 1 SQLITE_OK 0 sqlite3_step = 21 SQLITE_ROW 100 in iOS5.0 log Print sqlite3_prepare_v2 = 0 SQLITE_OK 0 sqlite3_step = 100 SQLITE_ROW 100

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  • how to listen for changes in Contact Database

    - by hap497
    Hi, I am trying to listen for any change in the contact database. So I create my contentObserver which is a child class of ContentObserver: private class MyContentObserver extends ContentObserver { public MyContentObserver() { super(null); } @Override public void onChange(boolean selfChange) { super.onChange(selfChange); System.out.println (" Calling onChange" ); } } MyContentObserver contentObserver = new MyContentObserver(); context.getContentResolver().registerContentObserver (People.CONTENT_URI, true, contentObserver); But When I use 'EditContactActivity' to change the contact database, My onChange function does not get called.

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  • testing database application remotely

    - by vbNewbie
    With advice from users here I was able to deploy an application that connects with sql server 2008 database on to a server. I have the connection string with data source pointing to my machine since the database is stored on my machine temporarily. I do not have access to another machine and wanted to test the application so I remotely connected to the server to test the application and it does not connect to the server. I have TCP/IP enables, port to defaul 1433, and remote connections checked. Is there something I am missing? Please help

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  • Cities to Metropolitan areas

    - by user325377
    Hi all, I have a database of cities (in both the US and the rest of the world). The database entries are simple text strings. Currently the database contains even small cities (population 10,000). I wish to use a larger scale database instead, by assigning the cities into larger geographical\metropolitan areas. An example can be the Metropolitan areas in Google's AdWords API: http://code.google.com/intl/iw-IL/apis/adwords/docs/developer/adwords_api_us_metros.html but I have no problem using other databases instead. I'd be grateful for any advice on how this can be performed using existing databases\APIs!

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  • Solaris 11 /proc permission denied

    - by Damo
    I have a Solaris 11.1 server running an Oracle database. I want to read the environment of a running oracle process, as the oracle user, like this: $ id uid=100(oracle) gid=100(oinstall) $ ps -fuoracle | grep pmon oracle 1651 1 0 10:25:37 ? 0:01 ora_pmon_TESTDB $ pargs -e 1651 pargs: cannot examine 1651: permission denied $ ls -ld /proc/1651 dr-x--x--x 5 oracle oinstall 864 Nov 23 10:25 /proc/1651 How can I grant permissions for oracle to read processes that it already owns?

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  • Getting data back from database after an ajax post submit

    - by sslepian
    I've got a web page where the user can add a new item to a category and that item is saved to the database. However, the ID of the item is an identity value for the database table, so I don't know what the ID will be, and I need this ID so that the user can edit the item later. I'm using ajax to make a POST submit: $.ajax({ url: 'TumourGroup/CreateSub', type: "POST", data: {'pos': index, 'text': text } }); This is linked to an MVC model with three fields, ID, pos, and text. Is there a way for me to get the ID that's generated on POST submit by having CreateSub(int index, string text) return something?

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  • How do I know the number of keywords coming from a database?

    - by murali
    hi, select name from suggest where name like 'aero%' and rownum<=10; but i am getting only 8 keywords ( db also having 8 keywords) but i want to count the no of keywords from db to my jsp prog. rs.getparameter("name"); ---- this gives 8 keywords. but i want to count the keywords.. can you give any sample program.... thanks, Murali

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  • Storing And Using Microsoft User Account Credentials in MS SQL Srv 2008 Database

    - by instantmusic
    I'm not exactly positive how to word this for the sake of the title so please forgive me. Also I can't seem to figure out how to even google this question, so I'm hoping that I can get a lead in the right direction. Part of my software(VB.NET App) requires the ability to access/read/write a shared network folder. I have an option for the user to specify any credentials that might be needed to access said folder. I want to store these credentials given in the MS SQL Database as part of the config(I have a table which contains configuration). My concern is that the password for the user account will be unencrpyted. Yet, if I encrypt the password the VB.NET App And/Or database will be unable to use the credentials for file i/o operations unless the Password is unencrypted before use. I'm fishing for suggestions on how to better handle this situation.

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  • How should I store an Java Enum in JavaDB?

    - by Jonas
    How should I store an Java Enum in JavaDB? Should I try to map the enums to SMALLINT and keep the values in source code only? The embedded database is only used by a single application. Or should I just store the values as DECIMAL? None of these solutions feels good/robust for me. Is there any better alternatives? Here is my enum: import java.math.BigDecimal; public enum Vat { NORMAL(new BigDecimal("0.25")), FOOD(new BigDecimal("0.12")), BOOKS(new BigDecimal("0.06")), NONE(new BigDecimal("0.00")); private final BigDecimal value; Vat(BigDecimal val) { value = val; } public BigDecimal getValue() { return value; } } I have read other similar questions on this topic, but the problem or solution doesn't match my problem. Enum storage in Database field, Best method to store Enum in Database, Best way to store enum values in database - String or Int

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