SQL Server Over Point-to-Point T1
Nov 10, 2006
I'm running SQL Server 2005 on a Server 2003 machine serving both our home network as well as a remote site through a point-to-point T1. While file transfer speeds are up to par, the remote site's interaction with SQL Server (Point of sale system) is very slow. After testing I am certain that it has nothing to do with the actual physical machine in place neither is it an issue with the program itself since speeds are as they are supposed to be over the home network lan. It seems that there might be a packet size issue or something of the sort. Has anyone dealt with this before or have any thoughts?
Thanks,
Peter
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Mar 26, 2008
Hello all,
First off, I appreciate the time that those of you reading and responding to this request are offering. My quesiton is a theoretical and hopefully simple one, and yet I have been unable to find an answer to it on other searches or sources.
Here's the situation. I am working with SQL Server 2005 on a Windows Server 2003 machine. I have a series of databases, all of which are in Full recovery mode, using a backup device for the full database backups and a separate device for the log backups. The full backups are run every four days during non-business hours. The log backups are run every half hour.
Last week, one of my coworkers found that some rarely-used data was unavailable, and wanted to restore a database to a point in time where the data was available. He told me that point in time was some time back in November.
To accomplish this, I restored the database (in a separate database, as to not overwrite my production database) using the Point in Time Recovery option. I selected November from the "To a point in time" window (I should note that this window is always grey, never white like most active windows, it seems), and the full database backup and the subsequent logs all became available in the "Select the backup sets to restore" window.
I then tried a bevy of different options from the "Options" screen. However, every restore succeeds (ie: it doesn't error out), but seems to be bringing the database back to a current point in time. It's never actually going back to the point in time I specify.
My questions are as follows:
a) Is it possible to do a point in time recovery to a point in time BEFORE the last full database backup?
b) If so, what options would you recommend I use? (ie: "Overwrite the existing database", restore with recovery, etc etc).
I again appreciate any and all advice I receive, and I look forward to hearing from anyone and everyone on this topic. Thank you.
Ryan
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Apr 24, 2008
What is the point of SQL Server 2005 Express ?On the Microsoft website (http://www.microsoft.com/sql/editions/express/default.mspx) it says:"SQL Server 2005 Express Edition is the next version of MSDE and is a
free, easy-to-use, lightweight, and embeddable version of SQL Server
2005." When I asked my hosting company about using it, they said this:"SQL Express is a development platform so we cannot provide this in the
production environment. We could however offer this as part of a
dedicated service." For this they charge £15/month ($30). I am supposed to use Access for small website development??
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Nov 11, 2001
Is is true that in SQL Server 7, a point in time recovery can not read the active logs? So that any point in time recovery has to be with in some time frame of the backups of the logs?
Example:
If you have a full backup at 5 am.
Log backups every 2 hours.
You need to recover at 3:55. You would have to go back to your full backup from 2 am and the transaction logs from 6, 8, 10, 12, and 2.
You would lose any work done from 2-3:55pm?
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Jul 20, 2005
Hi All!Has anyone has seen this error before?Event Type:InformationEvent Source:Application PopupEvent Category:NoneEvent ID:26Date:5/14/2004Time:10:06:45 AMUser:N/ADescription:Application popup: sqlmangr.exe - Entry Point Not Found : Theprocedure entry point TraceMessage could not be located in the dynamiclink library ADVAPI32.dll.This computer is running MS SQL Server STD Edition 2000 W/ ServicePack 1.Thanks!
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Mar 3, 2008
Hello,
I currently have two servers, one is a SBS2003 server running SQL 2005 and SSRS (2005) and a 2000 SQL server. I want to extract data from the 2000 server but keep getting this error: "Remote access to report data sources and/or the report server database" is not supported in this edition of Reporting Services. (rsOperationNotSupported)
When Iooked up this error, the only information I get is telling me that I can't do this in SQL Express, I'm not sure but I think the standard SQL in SBS is at least Workgroup?? What can I do to correct this?
Thanks
J.J.
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Oct 27, 2005
hi. i am managing a sql server 2000 database. for some reason, a table got dropped from the database--why i don't know; i'll worry about that later. is there a way to "rollback" the database to a point in time...say like 5 minutes ago? I have taken the database offline for the moment so no more changes can take place. i have never done this before and i would really appreciate some advice/online tutorials/help on this matter. i do have a full backup of the database because of nightly backups. any help will be greatly appreciated. thanks!
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Oct 26, 2006
Hi,
I got below error in the SQL Server Production Server and i checked in the microsoft site it needs to install SQL Server service pack 4 to resolve the
problem.
"A floating point exception occurred in the user process. Current transaction is canceled"
I need help that i want to reproduce this below problem in the SQL Server environment and tried several ways but no luck.
Please advise me how to reproduce the problem.
Would be appreciate your help.
Regards
Sathish
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Oct 21, 2014
Why are there more decimal positions here
PRINT cast(111 as decimal(38,35)) / 23
--> 4.82608695652173913043478260869565217
then here
DECLARE @Zähler decimal(38,35)
, @Nenner decimal(38,35)
SET @Zähler = 111.0
SET @Nenner = 23.0
PRINT cast(@Zähler as decimal(38,35)) / @Nenner
--> 4.826086
Of course, in the upper part 23 is implicitly an integer, in the lower example it is declared as decimal. But what if I need to devide by 23.5? Why is dividing by an decimal reducing the results decimal positions?
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Jul 23, 2005
Dear All,Do anyone know where I can find some useful documentation or anydocumentationabout restoring database to the point in time (using logs).SQL Server 2000 on Win 2000Thanks for all,M&M
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May 26, 2008
Hi Friends
I want Some Power Point Presentations In MS SQL SERVER 2005
1. Replication
2. Mirroring
3. RowVersioning
4. Table partition
5. Best Pactices for Store Procedures
6.Compare sql server 2008 and sql server 2005
All the above i want PPTs could you any body please send me
IndikaD
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Sep 1, 2015
Can I use a full and differential backup to restore to a point of time?
Or I have to use full and transaction log backups in order to do a point of time restore?
I found today when I tried to restore a db from another database at the point of time for example 3:10 pm,
SSMS automatically select the full backup + the transaction backup that is done at 3:00 pm, but not select full + the differential backup I did at 3:12pm.
So I lost those records entered after 3:00pm.
I supposed it should use the differential backup and restore to 3:10. but it didn't.
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Oct 23, 2015
I make two full backups on Oct 1 and Oct 10. I want to restore the server to a state in Oct 5. So I just do as follows:
1.Perform a transaction log backup on the server on Oct 23. I have never backup transaction log in the past.
2. Restore the server with Oct 1 full backup with NORECOVERY option.
3.Try to restore to the point at Oct 5 12:00, with the transaction log.
But the restore fails and SQL Server said the transaction log does not contain the point. The point is too early. Why? Also my .LDF file is about 13G, but the transaction log backup is only 200MB. Why?
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Dec 4, 2013
I am trying to understand why SQL Server gives me significantly lower precision than many of the other sources that have tried when using the POWER function. My environment is 2008 R2 SP2 (10.50.4000.0 X64, Standard edition) on Windows 2008 X64 SP1
DECLARE @x FLOAT(53) = 1.0004;
DECLARE @y FLOAT(53) = 1.0/12.0;
SELECT POWER(@x,@y)-1; -- Answer: 3.33270904724348E-05
GO
DECLARE @x FLOAT(24) = 1.0004;
DECLARE @y FLOAT(24) = 1.0/12.0;
[URL] ....
Answer: 3.33272237835747E-05
I also tried using Windows Calculator.Answer:3.3327223783495255846580902358195e-5
And an online "high-precision" calculator from [URL] ...
Answer: 3.332722378349525584658E-5
The best SQL results compare only to the fourth digit with other results. Everything else agrees to the 10th or 12th digit.
Is the precision of arithmetic calculations on SQL Server that bad, or am I doing something wrong here? Is there another more precise alternative?
I did the following. The results speak for themselves
DECLARE @x FLOAT(53) = 1.0004;
DECLARE @y FLOAT(53) = 1.0/12.0;
DECLARE @z FLOAT(53) = POWER(@x,@y)-1; -- Answer: 3.33270904724348E-05
SELECT POWER((1+@z),12); -- 1.00039999839968
-- using results from other sources (c#, windows calc, casio.com)
SELECT POWER((1+3.33272237835747E-05),12) -- 1.0004
SELECT POWER((1+3.3327223783495255846580902358195e-5),12)-- 1.0004
SELECT POWER((1+3.332722378349525584658E-5),12) -- 1.0004
It is not important what I am trying to do, but in case it will work, I am trying to calculate the monthly return for a 90-day T-bill given the compounded annual return. x is the annualized return.
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Jan 15, 2007
Hi there SQLTEAM
We have just installed MSSQL 2000 / Project Server / Share-Point.
We've managed to publish a project plan to Project Server.
This project plan is now visible in Project Web Access.
Can someone point me in the right direction, I'm looking for all the data that is stored in SQL for example Projects / Tasks / resourses.
Is there a DATABASE DAIGRAM for project server?
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Jun 3, 2014
I am trying to deploy the report into share point server through Visual Studio by using the [URL]..... But I am getting errors like [URL] .... could not be found.
I configured the the URL credentials like :
Target Datasource Folder: DEV/MyReports
Target Dataset Folder: DEV/MyReports
Target Report Folder: DEV/MyReports
Target Server URL: http://bigweb03
How can I deploy the reports in Sharepoint server to view the reports in online.
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Feb 25, 2015
We have a 1TB Database. Our backup strategy looks like this.
Weekly Full backups - Saturday 10pm. (Takes anywhere between 5 - 9 hours)
twice Nightly Diffs (8:30p and 2:30am - Mid week this takes roughly 1.5 hours)
Hourly Log backups starting at 4:00am until 11pm.
I have an issue where I need to restore to 3:00 today. If my (2:30a)Diff is still running at that recovery point.
I am getting an error when trying to restore Full/2:30a Diff/4a Log with a stopat 3:00a.
Error telling me my log backup is incorrectly formed.
Can I, in fact, restore to this point at all? Do I need to go back to my previous Diff (8:30p) and restore the logs, if so, which ones?
My nighttime Diff ran from 8:30 - 10p.
I have logs at 9p, 10p, 11p, 4a
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Jul 23, 2015
I am importing an excel spreadsheet into a MS SQL database table. When the spreadsheet is finished importing, I am noticing that some values that were brought in resemble something like this 1.41666666666667. Other values may be shorter or only have 1 digit. The problem is another web application that pulls this data for use in online forms only allows up to 2 digits. How can I round all of the numbers like the above to 2 decimals and replace the existing values?
I know there is the rounding function that could be used like so:
SELECT ROUND ([Hrs Total 2],2)
FROM AnnualClassifiedPAFs
How do I then take that rounded value and insert it back into the records?
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Oct 9, 2007
I have integrated Share Point server 2007 with Reports Server to publish the reports on share point site. I did all steps involved for integration
I have share point server, reports server and database server on three different machines configured and when I am trying to publish the reports from my local Dev box, setting the below project properties,
target datasource folder: http://vstsvr:168/sites/wsL/ReportsLibrary/
target report folder: http://vstsvr:168/sites/wsL/ReportsLibrary/
target Server url: http://vstsvr:168/sites/wsL/
I am getting the following error:
TITLE: Microsoft Report Designer
------------------------------
A connection could not be made to the report server http://vstsvr:168/sites/wsL/.
------------------------------
ADDITIONAL INFORMATION:
Client found response content type of 'text/html; charset=utf-8', but expected 'text/xml'.
The request failed with the error message:
--
<HTML dir="ltr">
<HEAD><meta name="GENERATOR" content="Microsoft SharePoint" /><meta name="progid" content="SharePoint.WebPartPage.Document" /><meta HTTP-EQUIV="Content-Type" content="text/html; charset=utf-8" /><meta HTTP-EQUIV="Expires" content="0" /><meta name="ROBOTS" content="NOHTMLINDEX" /><title>
Error
</title><link rel="stylesheet" type="text/css" href="/_layouts/1033/styles/core.css?rev=5msmprmeONfN6lJ3wtbAlA%3D%3D"/>
<script type="text/javascript" language="javascript" src="/_layouts/1033/init.js?rev=VhAxGc3rkK79RM90tibDzw%3D%3D"></script>
<script type="text/javascript" language="javascript" src="/_layouts/1033/core.js?rev=F8pbQQxa4zefcW%2BW9E5g8w%3D%3D"></script>
<meta name="Robots" content="NOINDEX " />
<meta name="SharePointError" content=""/>
</HEAD>
<BODY scroll="yes" onload="javascript:if (typeof(_spBodyOnLoadWrapper) != 'undefined') _spBodyOnLoadWrapper();">
<form name="aspnetForm" method="post" action="../../_layouts/error.aspx" id="aspnetForm" onsubmit="return _spFormOnSubmitWrapper();">
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUKLTU2NjkxODU3M2RkRs1mjkyJL3hiHYWlWaZqxb1RHhI=" />
<TABLE class="ms-main" CELLPADDING=0 CELLSPACING=0 BORDER=0 WIDTH="100%" HEIGHT="100%">
<tr><td>
<table CELLPADDING=0 CELLSPACING=0 BORDER=0 WIDTH="100%">
<tr>
<td colspan=4 class="ms-globalbreadcrumb" align="right">
<a href="javascript:TopHelpButtonClick('NavBarHelpHome')" id="ctl00_PlaceHolderGlobalNavigation_TopHelpLink" AccessKey="6" title="Help (new window)"><img src="/_layouts/images/helpicon.gif" align="absmiddle" border="0" alt="Help (new window)" /></a>
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<tr>
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<table width=100% cellpadding=0 cellspacing=0 border=0>
<tr>
<td id="GlobalTitleAreaImage" class="ms-titleimagearea"><img id="onetidHeadbnnr0" src="/_layouts/images/titlegraphic.gif" alt="" /></td>
<td class="ms-sitetitle" width=100%>
</td>
<td style="padding-top:8px;" valign=top>
</td>
</tr>
</table>
</td>
</tr>
<TR>
<TD id="onetIdTopNavBarContainer" WIDTH=100% class="ms-bannerContainer">
</TD>
</TR>
<TR height="100%"><TD><TABLE width="100%" height="100%" cellspacing="0" cellpadding="0">
<tr>
<td class="ms-titlearealeft" id="TitleAreaImageCell" valign="middle" nowrap><div style="height:100%" class="ms-titleareaframe"></div></td>
<td class="ms-titleareaframe" id="TitleAreaFrameClass">
<table cellpadding=0 height=100% width=100% cellspacing=0>
<tr><td class="ms-areaseparatorleft"><IMG SRC="/_layouts/images/blank.gif" width=1 height=1 alt=""></td></tr>
</table>
</td>
<td valign=top id="onetidPageTitleAreaFrame" class='ms-areaseparator' nowrap width="100%">
<table id="onetidPageTitleAreaTable" cellpadding=0 cellspacing=0 width=100% border="0">
<tr>
<td valign="top" class="ms-titlearea">
<a href="http://vstsvr:168/sites/wsL" id="ctl00_PlaceHolderTitleBreadcrumb_idSimpleGoBackToHome">Go back to site</a>
</td>
</tr>
<tr>
<td height=100% valign=top ID=onetidPageTitle class="ms-pagetitle">
<h2 class="ms-pagetitle">
Error
</h2>
</td>
</tr>
</table>
</td>
<td class="ms-titlearearight">
<div class='ms-areaseparatorright'><IMG SRC="/_layouts/images/blank.gif" width=8 height=100% alt=""></div>
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<TD class="ms-leftareacell" valign=top height=100% id="LeftNavigationAreaCell">
<table class=ms-nav width=100% height=100% cellpadding=0 cellspacing=0>
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<TABLE height="100%" class=ms-navframe CELLPADDING=0 CELLSPACING=0 border="0">
<tr valign="top">
<td width="4px"><IMG SRC="/_layouts/images/blank.gif" width=4 height=1 alt=""></td>
<td valign="top" width="100%">
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<tr><td colspan=2><IMG SRC="/_layouts/images/blank.gif" width=138 height=1 alt=""></td></tr>
</TABLE>
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<td></td>
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<div class='ms-areaseparatorleft'><IMG SRC="/_layouts/images/blank.gif" width=8 height=100% alt=""></div>
</td>
<td class='ms-formareaframe' valign="top">
<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" class="ms-propertysheet">
<TR valign="top" >
<TD class="ms-descriptiontext" width="100%">
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<tr>
<td valign="top" height="100%">
<A name="mainContent"></A>
<table width=100% border=0 class="ms-titleareaframe" cellpadding=0>
<TR>
<TD valign=top width="100%" style="padding-top: 10px" class="ms-descriptiontext">
<span id="ctl00_PlaceHolderMain_LabelMessage">The file you are attempting to save or retrieve has been blocked from this Web site by the server administrators.</span>
<P><span class="ms-descriptiontext">
<span id="ctl00_PlaceHolderMain_helptopic_troubleshooting"><A Title="Troubleshoot issues with Windows SharePoint Services. - Opens in new window" HREF="javascript:HelpWindowKey('troubleshooting')">Troubleshoot issues with Windows SharePoint Services.</A></span>
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document.title = "Error";
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--. (Microsoft.ReportingServices.Designer)
------------------------------
BUTTONS:
OK
------------------------------
THanks in Advance for any help.
Devanand
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Nov 25, 2014
On one of our SQL Server 2014 boxes each database has a copy-only full backup made every night, in addition to the maintenance plan schedule of a full backup weekly, daily differential backups and log backups.
When performing a PIT restore in SSMS the restore file list lists the most recent copy-only backup as the full backup to use, not the most recent plan full backup. I noticed that using SSMS 2008 to start a PIT restore on the 2014 box does not have this problem, and lists the correct restore file sequence (ignores the copy-only backups).
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Apr 20, 2015
Im backing up to a network directory thats actually a mount point on a different server.My backup was slower than usual so i opened up perfmon to have a look.
When selecting the mount point from the Logical Disks section in perfmon i can see that writes/sec & write bytes/sec both show zero for a long period of time, even though the backup percent complete is increasing.Then all of a sudden the writes to the network share jump massively.
Is there some caching mechanism for backups in sql where during a backup data is only flushed to the disk periodically during backup?
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Aug 30, 2014
I get this error when I open powerpivot documents in sharepoint.
"We cannot locate a server to load the workvbook Data Model."
after I've looked into the logs I came up with this:
Check Server Version (SQLSERVER2012POWERPIVOT): Fail (Expected: >=11.0.2800.0, Actual: 11.0.2100.60).
--> Check Deployment Mode (SQLSERVER2012POWERPIVOT): Pass.
MonitorableCheck Server Configuration (SQLSERVER2012POWERPIVOT): Fail (Uninitialized, ConfigurationError, WrongVersion).
SSPM: Initialization failed on server SQLSERVER2012POWERPIVOT: Microsoft.AnalysisServices.Streaming.ServerConfigurationException: Server SQLSERVER2012POWERPIVOT failed configuration checks (Status = Uninitialized, ConfigurationError, WrongVersion). at Microsoft.AnalysisServices.Streaming.OnPremise.Server.AssertServerConfiguration(Server amoServer, CancellationToken ctx) at Microsoft.AnalysisServices.Streaming.OnPremise.Server.Initialize(Guid serviceId, CancellationToken ctx) at Microsoft.AnalysisServices.Streaming.OnPremise.Tasks.InitializationTask.Run(CancellationToken ctx)
how can I update my analysis server version that doesn't affect anything else?
should I install a CU on my SQL or upgrade it?
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Dec 5, 2013
I have a closed polygon that coincidently is in the shape of Iowa :) I have a point that is within the state and a point WELL outside it, but I get weird results that I don't expect when I try to get it to tell me that the point is within the polygon. Here is some basic code, with long coordinates data.
DECLARE @g geography,
@pIn geography,
@pOut geography
SET @g = geography::STPolyFromText('POLYGON((-91.119987 40.705402, -91.129158 40.682148, -91.162498 40.656311, -91.214912 40.643818, -91.262062 40.639545, -91.375610 40.603439, -91.411118 40.572971, -91.412872 40.547993, -91.382103 40.528496, -91.374794 40.503654, -91.385399 40.447250, -91.372757 40.402988, -91.385757 40.392361, -91.418816 40.386875, -91.448593 40.371902, -91.476883 40.390968, -91.490158 40.390762, -91.500221
[code]...
(1 row(s) affected)As I read that there is a distance of about 7864 meters, this is close to what I would expect, so that's ok. The point outside I would expect a distance as well so that is confusing.. Then we have the intersects, it says that the point inside does NOT intersect but the one outside DOES, this is backed up by the intersection values.
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Feb 20, 2014
We have a Customized share point application with Very minimal data usage and we have used only 5 to 6 lists and libraries only in the share point.
Configuration is
Clients -- fire wall --- Load Balancer ---- WF1 and WF2 --- SQL DB
ROUTING IS VIA FIRE WALL.
SUDDENLY THE SITE GOT DEAD SLOW AND UNABLE TO TRACE THE PROBLEM AS EVERY THING LOOKS FINE.
Checked with the firewall Team and they stated its fine from their end & even we have verified the counters, CPU, Memory & Page life expectancy, buffer counters all looks good and even we do not have huge data in the database. We have only 50 concurrent users are working...
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Sep 4, 2007
I just start my job as sql server DBA. We have disaster recovery plan. We implement Log shipping . My question after the server failiure, when production server up again ,how to point stand by server to production server?, any help will be appreciated.
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May 21, 2008
I normally develop for MySQL and PHP, but we have a new application that runs on MS SQL and I'm having difficulty using the same structure as MySQL to run queries. Can someone here point me to a good resource to learn the basics?
Thanks!
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Oct 26, 2005
Hi there.
Is it possible to convert the Power Point file to SQL Server Version 7 or 2000? My PowerPoint files have no images or pictures, only lyrics for songs that are used in the church during sunday services.
I was appointed to make a system in VB6 but my first job is to convert the PowerPoint files to SQL Server. There are 2000 songs in the powerpoint right now.
Please help.
Thanks.
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Feb 11, 2007
Hello, thanks for reading this.
I am trying to learn a bit about debveloping my own website, and I am in need of a basic direction on how to acomplish this task:
I have an local program running on my PC that creates an MS Access database export of my inventory. This export can be directly uploaded to my web server in a zip format.
My web site is developed in Coldfusion MX7, and uses a MS SQL 2005 database. What I would like to do is create somewhat of an "Auto update" for my website, exporting my access database and updating the MS SQL database automatically.
I really can use some good direction on this problem.
Thank you for any help in advance.
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Mar 19, 2007
i have a DTS Package a saved when i set up the package. it's in local packages in Enterprise Manager now. is there any way i can simply set up a shortcut on my desktop to execute that DTS, rather then having to nav though Enterprise Manager?
yeah, i know i'm lazy :o)
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Nov 24, 2007
hi.
i am a c++ developer who requires to learn sql.
i have no other programs than the sql server that comes with visual studio pro 2005.
what
do i need to get/do to create a sql databse and to manipulate it in c++.
thank you.
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Jan 21, 2008
I need to write a floating point value to a column in a SQL server database. I have the following line ofcode, that formats the float value before passing it off to the stored procedure.
Please look at the line of code below. Does the 8 after SqlDbType.Foat mean that this will be a floatingpoint with 8 signigicant digits past the decimal point?
mySqlCommand.Parameters.Add("@Price", SqlDbType.Float, 8).Value = float.Parse(InitialPrice);
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Apr 11, 2005
Hi all,
I want to select a column which is store email address. How to use the substring function from starting point '@' to end of string?
Here is my syntax :
select substring(emailaddress, [what syntax] ,len(emailaddress)) from table
Thanks!
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Nov 9, 2001
Hello all,
I can't see any reason for this error, not having a high level understanding of maths I thought I'd post it and hope someone could share some light on it.
I yesterday got called by a client who said that a payment for £15 + VAT was being passed to their payment gateway as 17.62 when it should be 17.63. The VAT calculation is performed in a SQL Server 2000 stored procedure. In the end I tracked it down and it wasn't a propblem with my calculation.
The price was coming out as 17.63 fine. The stored procedure then had to return this price in pence (17.63 * 100 = 17.63). When I put in a print statement with this calculation it was correct but when I output the variable that the result was assigned to it was coming out as 1762.
The variable that the result was being put into was of real datatype.
I then wrote a udf to test this. Here is the function:
CREATE FUNCTION dbo.POUNDS_TO_PENCE
(
@POUNDVALUE real
)
RETURNS INTEGER
AS
BEGIN
RETURN @POUNDVALUE * 100
END
As you can see nothing very special.
If you run this runction and pass in 17.63 it will return 1762!!!
The bit I don't get is if I change the @POUNDSVALUE intput variable to type float it returns the correct amount.
I've also found that the same problem occurs when passing in £30 + VAT (35.25) + 1pence. So, 35.26 comes out as 3525 instead of 3526. This is the case if you keep doubling the number (and adding a few pence here and there).
Does anyone know why this is or is it a bug in the processor?
The SQL books online say the following about the float and real data types:
--------------------------------------------------------
float and real (T-SQL)
Approximate number data types for use with floating point numeric data. Floating point data is approximate; not all values in the data type range can be precisely represented.
Syntax
float[(n)]
Is a floating point number data from - 1.79E + 308 through 1.79E + 308. n is the number of bits used to store the mantissa of the float number in scientific notation and thus dictates the precision and storage size. n must be a value from 1 through 53.
n is Precision Storage size
1-24 7 digits 4 bytes
25-53 15 digits 8 bytes
The Microsoft® SQL Server™ float[(n)] data type conforms to the SQL-92 standard for all values of n from 1 to 53. The synonym for double precision is float(53).
real
Floating point number data from –3.40E + 38 through 3.40E + 38. Storage size is 4 bytes. In SQL Server, the synonym for real is float(24).
--------------------------------------------------------
Apart from the fact that it says 'Approximate number data types' I can't see any difference between the data type apart from the ranges.
Anyone any ideas?
Thanks
Tom Holder
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