Optimal Solution For Getting Timestamp Of Last Entry
Jul 25, 2007
Hi
I'm trying to find the optimal way of getting the timestamp of the last updated entry in an mssql database. A database is updated only about 5 times a minute, how ever a request for the time of the last entry could be around 1 per second. For this reason i was thinking of having a separate table which has a single row which is updated everytime a new entry is updated in the main table. I would then only need a simple SELECT statement and need very little processing power.
Is this the best method, or can you think of any others i could use?
many thanks
View 14 Replies
ADVERTISEMENT
Dec 10, 2006
Hi,I want to know the optimal solution, to find if all the data was entered. Lets say, Table A (date field) and for a given month, i need that all the days in the given month are present in the Table A. Right now i have different solutions, 1) a stored procedure which loops through all the days in the given month against a select statement on Table A2) a stored procedure, create a temp table which contains all the dates in the given month, and a single select statement using where condition (select * from.... where datefield not in (select * from...))I want to know what is the best solution of these two or any other solution.Thanks
View 9 Replies
View Related
Jun 19, 2007
I am populating oracle source in Sql Server Destination. after few rows it fails it displays this error:
[OLE DB Destination [16]] Error: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005. An OLE DB record is available. Source: "Microsoft OLE DB Provider for SQL Server" Hresult: 0x80004005 Description:
"Invalid date format".
I used this script component using the following code in between the adapters, However after 9,500 rows it failed again giving the same above error:
To convert Oracle timestamp to Sql Server timestamp
If Row.CALCULATEDETADATECUST_IsNull = False Then
If IsDate(DateSerial(Row.CALCULATEDETADATECUST.Year, Row.CALCULATEDETADATECUST.Month, Row.CALCULATEDETADATECUST.Day)) Then
dt = Row.CALCULATEDETADATECUST
Row.CALCULATEDETADATECUSTD = dt
End If
End If
I don't know if my code is right . Please inform, how i can achieve this.
View 6 Replies
View Related
Jun 23, 2015
date time s-sitename TimeTaken(Seconds)
6/8/2015 10:56:26 TestSite 100
6/8/2015 10:56:26 TestSite 500
6/8/2015 10:56:26 TestSite 800
6/9/2015 11:56:26 TestSite 700
6/9/2015 11:56:26 TestSite 200
6/12/2015 12:56:26 TestSite 700
I have a table with above values, I am looking for a sql query to find AvgTimeTaken at different time stamps and total count of each time stamp
Output
date time s-sitename TimeTaken(Seconds) Count_of_Request
6/8/2015 10:56:26 TestSite 1400 3
6/9/2015 11:56:26 TestSite 900 2
6/12/2015 12:56:26 TestSite 700 1
View 5 Replies
View Related
Jul 23, 2005
Please excuse what is probably a no-brainer, but here goes.Is there any difference, in terms of performance or any other pertinentfactor, between:SELECT * FROM tblCustomers INNER JOIN tblCustomerOrders ONtblCustomers.fldCustomerID = tblCustomerOrders.fldCustomerIDandSELECT * FROM tblCustomers, tblCustomerOrders WHEREtblCustomers.fldCustomerID = tblCustomerOrders.fldCustomerIDI note that if I type the latter into the SQL pane in a Data window,SQL Server replaces it with the former.TIAEdward--The reading group's reading group:http://www.bookgroup.org.uk
View 3 Replies
View Related
Mar 2, 2005
What is more efficient for a database design - a lot of tables with only a few records or a few tables with lots of records.
I'm starting a new site and each user will have numerous records but I'm not sure whether to have a few very large tables (over 100,000 rows) or start a new table for each user which would result in approx 1500 tables most of which would be the same table design with different rows.
I'm using SQL2000.
I guess this is quite a basic question, but I'm a bit unsure.
Any references anyone could point me too as well.
Thx
View 3 Replies
View Related
Feb 3, 2004
Hi
I'm fairly new to this, so bare with me...
I have to make a new installation of an MS SQL 2000 EE on a Windows 2003 Std. Edt.
HW:
---------------------
Dual Xeon 2,4 + 1 GB Ecc
1 x 32 MB Adaptec 2100S RAID Controller
2 x 18 GB 10K HD
4 x 18 GB 15K HD
---------------------
So far I have made following configuration....
---------------------
2 x 18 GB 10K HD / RAID 1
- C:OS
- D:MSSQL program files + System DB's (Master, pubs ect.)
4 x 18 GB 15K HD / RAID 5
- E:TempDB
- F:Data + Logs
---------------------
But I'm not sure that this is the optimal configuration, and I'm willing to start all over :)
So my q's are.......
--------------------
Which RAID configuration would you suggest?
Which partitions on the raids would you suggest?
Which usage would you assign the various partitions?
How do I move the system and temp db's?
--------------------
Thanx!
Regards,
Taras Bredel dk
View 3 Replies
View Related
Jun 19, 2008
I am wondering if 100% buffer cache hit ratio is considered not good in general?
Are there instances that it is actually bad and can contribute to server performance degradation?
Any thoughts on the topic most welcome :)
--------------------
keeping it simple...
View 11 Replies
View Related
Jul 23, 2005
I am working with a report generator that is based on SQL Server 2000 anduses ASP as the UI. Basically we have a set of reports that end users canexecute through a web browser. In general the model works fine, but we arerunning into some scaling issues.What I'm trying to determine is, what is the optimal configuration for thissystem. It is currently a 2.4G Pentium with a large RAID and 1G of RAM. Wehave been using the "fixed" memory configuration, allocating 864M to SQL.This is on a Windows 2003 server box.This works fine when a "small" query or two is executed, but the performancesuffers terribly when several users try to run reports in parallel. A singlequery might take 10 minutes to run if nothing else is happening on the box,but if additional users log on an run reports, it's almost impossible topredict when the queries will finish.I am also looking at the effect of database size on performance, runningtests against a database with 1 month, 3 months, and say 12 months of data,running the same query against 2 databases in parallel. With the originalconfiguration, the results were all over the place, with the 12 monthdatabase outperforming the smaller dbs, while other times there was littledifference. It seems that once the system starts paging, and paging heavily,it's over; the system never "recovers" and queries that previously ran in afew minutes now take hours.I added 3 G more memory to the system, and modified boot.ini to include the/3GB switch. Now when I run the same tests, the results are much moreconsistent, as the system rarely ever has to swap. Then again I've neverseen it go past 1.7G in Task manager, making me think that any more than say2.5G of memory is a waste?Things we are trying to determine are:- in the SQL Server memory configuration, is Fixed better than Dynamic? Wehave read that Dynamic is not good at returning memory to the OS once it'sbeen allocated- What else can we do to optimize the performance for this application? Itseems to me if the indexes are properly designed, the database sizeshouldn't have that much impact on performance, but this appears to be trueonly to a point. In comparing the execution plans between say a 12 month anda 3 month database, the plans are sometimes dramatically different. I assumethis is due to the optimizer deciding that going directly to the base tablesand not using an index will result in better performance, when in reality,this doesn't always appear to be true.- Are there other SQL Server switches I should be tweaking? Is there somenumber of simultaneous queries that this configuration should be limited to?- What about other versions of SQL Server (e.g. Enterprise, Data Center,etc) would these buy us anything?Thanks for any advice,-Gary
View 2 Replies
View Related
Nov 23, 2005
I have the following tableCREATE TABLE Readings(ReadingTime DATETIME NOT NULL DEFAULT(GETDATE()) PRIMARY KEY,Reading int NOT NULL)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20050101', 1)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20050201', 12)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20050301', 15)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20050401', 31)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20050801', 51)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20051101', 106)GO-- list the tableSELECT ReadingTime, Reading FROM ReadingsGOIt is a table of readings of a free-running counter that istime-stamped. I need to determine the value of the reading thatcorresponds to the closest date to the supplied dateAre there more optimal/efficient ways of accomplishing this than thefollowing?DECLARE @when DATETIMESET @when = '20050505'SELECT TOP 1 ReadingTime, Reading FROM ReadingsORDER BY abs(DATEDIFF(minute, ReadingTime, @when))The above gives me the desired result of ('20050401', 31).Any suggestions would be appreciated
View 1 Replies
View Related
May 14, 2007
I would like to know what options are available from BIOS / OS / SQL and server perspective when configuring or tuning a system with SQL Server 2000 or SQL Server 2005.
For example, I have a system with 4 dual-core Opteron CPUs on Windows 2003 Enterprise Edition. However, the OS sees 8 CPUs -- is this the optimal configuration or is it better (if even possible) to configure the system to see only 4 CPUs? The reason for this concern is due to performance problems faced deploying systems with Hyperthreading Technology.
Any documentation or examples in this regard would be very useful. Basically, what are the scenarios that would require a certain type of CPU configuration over another.
Thanks in advance for your help,
Ziggy
View 1 Replies
View Related
Aug 24, 2007
What is the best performance for this configuration:
Files:
Data
Log
Indexes
tempdb
Disk:
A - RAID 10
B - RAID 10 (or should this be RAID 1?)
Whats best?:
A - Data and Indexes
B - tempdb and Log
??? Thanks.
View 1 Replies
View Related
Aug 5, 2014
I have a VM set up for offloading DBCC checks. Specs are below. I've read through this, but I'm not seeing the performance gains by enabling the trace flags and using the physical only switch.
Is the whole drawback that I'm on SATA storage? Is there a VM configuration with the CPU I can/should change? I've been playing with MAXDOP trying to see if I can get any benefits but I'm not seeing a much.
wait_type wait_time_spctrunning_pct
CXPACKET 561191.4228.7128.71
OLEDB 387136.7619.8148.52
PAGEIOLATCH_SH 340674.5817.4365.95
TRACEWRITE 321598.8416.4682.41
[code].....
View 9 Replies
View Related
Nov 30, 2006
VB.NET 2005 Express and SQL Server 2005 Express - NOT saving updates to DB - SOLUTION!
-----------------------------------
The following article is bogus and confusing:
How to: Manage Local Data Files - Setting 'Copy to Output Directory' to 'Do not copy'
http://msdn2.microsoft.com/en-us/library/ms246989.aspx
You must manually copy the database file to the output directory
AFTER setting 'Copy to Output Directory' to 'Do not copy'.
Do not copy
The file is never copied or overwritten by the project system. Because your application creates a dynamic connection string that points to the database file in the output directory, this setting only works for local database files when you manually copy the file yourself.
You must manually copy the database file to the output directory
AFTER setting 'Copy to Output Directory' to 'Do not copy'.
-----------------------------------
The above article is bogus and confusing.
This is rediculous!
This is the most vague and convoluted bunch of nonsince I've ever come accross!
Getting caught out on this issue for the 10th time!
And not being able to find an exact step-by-step solution.
--------------------------
I've tried it and it doesn't work for me.
Please don't try what the article eludes to as I'm still sorting out exactly what is supposed to be happening.
If you have a step-by-step procedure that can be reproduced this properly please PM me.
I would like to test its validity then update this exact post as a solution rather than just another dicussion thread.
Many thanks.
This is the exact procedure I have come up with:
NOTE 1: DO NOT allow VB.net to copy the database into its folders/directorys.
NOTE 2: DO NOT hand copy the database to a folder/directory in your project.
Yes, I know its hard not to do it because you want your project nice and tidy.
I just simply could NOT get it to work.
You should NOT have myData.mdf listed in the Solution Explorer. Ever.
Create a folder for your data following NOTE 2.
Copy your data to that folder. * mine was C:mydatamyData.mdf
Create a NEW project.
Remove any Data Connections. ( no matter what)
Save it.
Data | View Data Sources
Add New Data Source
select NEW CONNECTION ( No Matter what, do it!
Select the database. * again mine was C:mydatamyData.mdf
Answer NO to the question:
Would you like to copy the file to your project and modify the connection?
- NO ( no matter what - ANSWER NO ! - Absolutely NO )
Then select the tables you want in the DataSet.
and Finish.
To Test ----------
From the Solution Explorer | click the table name drop down arrow | select details
Now Drag the table name onto the form.
The form is then populated with a Navigation control
and matching Labels with corresponding Textboxes for each field in the table.
Save it.
1) Run the app.
Add one database record to the database by pressing the Add(+) icon
Just add some quick junk data that you don't mind getting lost if it doesn't save.
YOU MUST CLICK THE SAVE ICON to save the data you just entered.
Now exit the application.
2) Run the app again.
And verify there is one record already there.
Now add a second database record to the database by pressing the Add (+) icon.
NOW add some quick junk data that you WILL intentionally loose.
*** DO NOT *** press the save icon.
Just Exit the app.
3) Again, Run the app.
Verify that the first record is still there.
Verify that the Second record is NOT there.
Its NOT there because you didn't save the data before exiting the app.
Proving that YOU MUST CLICK THE SAVE ICON to save the data you just entered.
Also proving you must add your own code to catch the changes
and ask the user to save the data before exitiing or moving to another record.
As a side note, since vb.net uses detached datasets,
(a copy/snapshot of the dataset in memory and NOT directly linked to the database)
the dataset will reflect all changes made when moving around the detached datasets.
YOU MUT REMEMBER TO SUBMIT YOUR CHANGES TO THE DATABASE TO SAVE THEM.
Otherwise, they will simply be discarded without notice.
Whewh!
I hope this saves me some time the next time I want to start a new database project.
Oh, and uh, for anyone else reading this post.
Thanks,
Barry G. Sumpter
Currently working with:
Visual Basic 2005 Express
SQL Server 2005 Express
Developing Windows Forms with
101 Samples for Visual Basic 2005
using the DataGridView thru code
and every development wizard I can find within vb.net
unless otherwise individually stated within a thread.
View 17 Replies
View Related
May 28, 2014
I would like to build a report with nice functionalities like filter, sorting, drill-down, something like a PowerPivot Table, but with some layout/design/format capabilities. I would also want to publish the report, refresh it let´s say once a week, notify users when a new version is available, etc.
If I use PowerPivot, then I am not able to customized the report or to mix data from different sources in one table.
If I convert the cells of the PowerPivot table to workbook formulas I lose the filter, sorting, etc functionalities.
I still have to try using Reporting Services, but I think that always something is missing.
View 1 Replies
View Related
Jan 3, 2008
C# .Net Application as front end
Sql Server2000 as back end
I need to merge an external dataset from .Net app(in XML format) with the information in database with one column in database table as the merging criteria. A situation similar to Left Outer Join, wherein i need all records from external dataset and if matched in database the corresponding values from there too, the only difference here is that the join is not between two Tables its between a table and external dataset.
There is no need to store the external dataset in the database in persistent form, its just a query - merge - response operation.
So, can anyone suggest the best possible solution for this? A table variable / temporary table / some other schema, what and how?
Thanks in advance..
View 8 Replies
View Related
Feb 20, 2004
I was told in one of my systems classes that the real performance bottleneck in accessing information from the database was the opening of a connection from the application to the database.
To combat that problem I was advised to use a Singleton Factory pattern and to have that Factory instaniate a connection and open it, then pass references to that connection for all of the objects that it created. All of those objects passed the connection reference to the objects they created and so on. Basically that meant that I only ever had one connection open at any one time for my entire application. And I was able to implement this solution at my previous job where I was developing in Oracle. I primarially used OracleCommands and OracleDataReaders to get the informaton into and out of the database. I thought this was a very nice solution. Having this many DataReaders accessing a single connection was not a problem because OracleConnections don't get locked from having more than one DataReader open at once.
At my current job, however, I use SQL Server. I am concerned that the single connection will not work in my new enviroment as the SQLDataReaders lock up the connection while they are using it. If the information that I recieved about opening connections being the real bottleneck, then I am hesitant to have a connection instanciated and opened for each method, but I am concerned that a whole lot of errors will be generated if I use the single connection method. Also, how do DataAdapters effect my decision of which approach to use.
Any advice would be most helpful. If you have any questions that would help answer just ask. Thanks.
View 4 Replies
View Related
Jul 10, 2007
For starters, please feel free to move this if it is in the wrong forum.
The issue I have is this. I have been asked to delete all information from a table that was inserted before May 12 this year. The issue is that when the DB was created, whoever designedd it neglected to add a timestamp column for the user data table (the one I need to purge). Does SQL, by default, happen to store insert times? Would it be something that might hide ina log file somewhere?
View 4 Replies
View Related
Nov 22, 2005
Can someone please help me solve the following error? I am not sure of the version my hosting company is using and where to get the manual.
Could not add the entry because: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near '-id, title, entry, date_entered) VALUES ('testing', 'testing', . The query was INSERT INTO blog_entries (blog-id, title, entry, date_entered) VALUES ('testing', 'testing', 'testing'.
PHP Code:
if ($dbh = mysql_connect ('localhost', 'blu6592_money', 'rich')) {
print '<p>Successfully connected to MySQL.</p>';
if (mysql_select_db ('blu6592_myblog')) {
print '<p>The database has been selected.</p>';
} else {
die ('<p>Could not select the database because: <b>' . mysql_error() . '</b></p>');
}
$query = "INSERT INTO blog_entries
(blog-id, title, entry, date_entered)
VALUES (0, '{$_POST['title']}',
'{$_POST['title']}',
'{$_POST['entry']}', NOW())";
if (mysql_query ($query)) {
print '<p>The blog entry has been added.</p>';
} else {
print "<p>Could not add the entry because: <b>" . mysql_error() . "</b>. The query was $query.</p>";
}
} else {
die ('<p>Could not connect to MySQL because: <b>' . mysql_error() . '</b></p>');
}
mysql_close();
Thanks in advance.
View 1 Replies
View Related
Aug 13, 2005
(I don't post here often, so in case I'm violating long-standing taboosof this newsgroup, I apologize in advance for calling a relation atable, using nulls, and other ignorant, destructive, and comtemptibleterminology.)I have a table that's keeping a sort of running log of different typesof changes to pieces of data. The table has a foreign key of the databeing changed, the foreign key for the type of change occuring, someinformation about the change in a couple more columns, and a timestampfor each entry. So it's:dataIDeventIDeventInfotimestampWhat I'd like to do, if at all possible, is a single SQL query that,given a dataID, returns the most recent eventInfo and timestamp foreach eventID. Is this possible?Many thanks.-Eric
View 3 Replies
View Related
Apr 12, 2004
Anyone Got any other advice?
http://www.dbforums.com/t993214.html
View 3 Replies
View Related
May 30, 2007
"High priority system task thread: Operating system error Exception 0xAE encountered."
we are seeing this on one of our development servers, running SQL 2005 Enterprise SP1. The symptom is that after the sql service has been running a while (order of days), this error starts getting written to the sql server log file over and over, and eventually the logfile fills the drive.
Apparently it's fixed by this hotfix, but our ops team doesn't want to install this - they'd rather just cycle the service and delete the log when it happens.
I was wondering if anyone else has seen it might know the root cause so we might be able to workaround it without cycling the service. I know, lame question. The correct answer is "install the hotfix" or "install sp2" but our ops team won't do that for now...
www.elsasoft.org
View 2 Replies
View Related
Jul 24, 2007
Hi All,
I have a table with name C1_Subscribers with three fields (1)-MobileNumber [varchar]
(2)-ReceivedTime [datetime]
(3)-Status [char].
Now here how to remove duplicate entry of same mobile number to MobileNumber field?
Regards
Shaji
View 4 Replies
View Related
Nov 28, 2006
Hello,
I have a table of names/dates as such:
Class 1 1/1/2007Class 1 1/3/2007Class 1 1/5/2007Class 2 2/1/2007Class 2 2/3/2007Class 3 3/1/2007
What I want to do is select only the nearest entry from the list for each distinct class, so the results are like this:
Class 1 1/1/2007Class 2 2/1/2007Class 3 3/1/2007
So basically, I want the first upcoming class in the list for each distinct class name. How do I do this? I'm using SQL 2005 Express.
Thanks.
View 3 Replies
View Related
Jun 4, 2007
How do i do that... in sch lab, the lecturer said: Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click Try SqlDataSource2.SelectParameters("Title").DefaultValue = txtProductTitle.Text GridView1.DataBind() If GridView1.Rows.Count > 0 Then //if no repeated Label1.Text = "Existing Record Found. Please enter another Software." Else 'SqlDataSource1.Insert() 'Label1.Text = txtProductTitle.Text & " successfully added to the database." End If Catch ex As Exception Label1.ForeColor = Drawing.Color.Red Label1.Text = "An error occured!" & ControlChars.NewLine & ControlChars.NewLine & _ ex.Message.ToString() End Try End Sub but its not working for me... the GridView1.Rows.Count is always 0, if there is a repeat, it should be > 0
View 4 Replies
View Related
Nov 9, 2007
Hi, I know this is probably very simple but I am pretty new to this and have tried looking but cant seem to get the search criteria right. I have a database with a storeDate field which is of shortdatetime type. I am connecting to the database (MSSQL) via a stored procedure and returning all the records. I then use the code foreach (DataRow dr in ds.Tables[0].Rows) { DateTime dtTo = DateTime.Now; DateTime dtFrom = DateTime.Parse(dr["storeDate"].ToString()); TimeSpan diff = dtTo.Subtract(dtFrom); } I am basically trying to find out the age of the database entry by subtracting it from the current DateTime so i can delete records over a certain age. The problem (at least one of them!) is retrieving the "storeDate" object from the database and storing it in the dtFrom object. I have tried just assigning it directly as dtFrom = dr["storeDate"] and various other methods but I just don't know enough to assign it! Can anyone help me with this or spot any other mistakes in this process of removing old files automatically. Greatly Appreciated,Sean.
View 4 Replies
View Related
Nov 17, 2007
Hi,I'm creating a database using SQL Server 2005 Express Edition (Comes with Visual Web Developer). The table which I am creating has the following Fields - all don't allow nulls:IDUserIdDateDescription(UserId is a foreign key to asp_net_Users as I am supporting user accounts)Basically what I need to do is create a page where I as an Administrator can log onto and enter just the text for the field Description. Then once I upload this I wish all users to visit the site and view this Description on a page however with it also listing the Administrator who wrote it along with the Date. I wish both of these fields to be added automatically (UserId to display the User Name and the Date to display the date and time with which the Description was added - However these need to be editable by the Administrator if he/she wishes to change them).Can anyone point me in the right direction on the steps needed to create this scenario?Thanks for any helpDaniel
View 4 Replies
View Related
Aug 14, 2005
Here's some code that says it should identify if a user already exists in my database. I have changed the code to match my database, but it seems to have somewhat the opposite affect, rejecting all names (even new ones) or accepting all names (including existing ones). The switch in situations occurs in the "if" statement towardsd the end, when I change the sign of objDR.RecordsAffected. Do you have any idea what could be wrong? Thanks.
Function DoesUserExist(ByVal userName As String) As Boolean
Dim connectionString As String = "server='(local)Netsdk'; trusted_connection=true; Database='AuthorizedUsers'"
Dim sqlConnection As System.Data.SqlClient.SqlConnection = New System.Data.SqlClient.SqlConnection(connectionString)
Dim queryString As String = "SELECT [Users].[UserName] FROM [Users] WHERE ([Users].[UserName] = @UserName)"
Dim sqlCommand As System.Data.SqlClient.SqlCommand = New System.Data.SqlClient.SqlCommand(queryString, sqlConnection)
Dim Cmd as New SQLCommand(queryString, sqlConnection)
With Cmd.Parameters
.Add(New SQLParameter("@username", username))
End With
sqlConnection.Open
Dim blHasRows As Boolean
Dim objDR As System.Data.SqlClient.SqlDataReader = Cmd.ExecuteReader(system.data.CommandBehavior.CloseConnection)
if objDR.RecordsAffected > 0 then
blHasRows="True"
else
blHasRows="False"
End If
Return blHasRows
End Function
View 4 Replies
View Related
Feb 22, 2006
How can I select from a table the newest entry.I'm inserting in a table user info and then want to get the users id number
View 9 Replies
View Related
Feb 23, 2001
hi I have a table I need to have a process which prevent a user from entering a name value( company Name ) in a field. how can I do that .
Ahmed
View 2 Replies
View Related
Nov 8, 2005
Hello,
I am trying to select the last entry (by date) for each category in a table.
For example, if my table had the following fields;
id, category, product, datePosted,....
...how would I select the last product for each category posted by date?
Any guidance is appreciated.
Thanks,
AC
Probably a simple solution, but can't find it my brain right now!
View 7 Replies
View Related
Jan 26, 2005
Task:
To insert entries into a table. The table has a primary key based on a field 'ID'. When inserting into the destination table, I want to make sure that the new entry will overwrite the old entry.
What's the quickest/cleaniest way to do this ?
thanks,
Clayton
View 1 Replies
View Related
Aug 2, 2006
MSSQL2K
SP4
Howdy all. Im trying to write a query that will track a data modification grouped by employer ID and transaction date. I don't know if Im asking it right so here is what I have, plus my current and desired outputs.
--drop table #foo
create table #foo
(empID int,
transDate datetime,
transType varchar(10))
insert into #foo values(1, '01/01/06 01:01:01','Insert')
insert into #foo values(1, '01/01/06 01:01:02','Update')
insert into #foo values(1, '01/01/06 01:01:03','Delete')
insert into #foo values(2, '01/01/06 01:01:01','Insert')
insert into #foo values(2, '01/01/06 01:01:02','Update')
select f.empID, Change =
(select count(transDate) from #foo f2
where f2.empID = f.empID
group by empID),
f.transDate, f.transType
from #foo f
Current results:
132006-01-01 01:01:01.000Insert
132006-01-01 01:01:02.000Update
132006-01-01 01:01:03.000Delete
222006-01-01 01:01:01.000Insert
222006-01-01 01:01:02.000Update
Desired results:
112006-01-01 01:01:01.000Insert
122006-01-01 01:01:02.000Update
132006-01-01 01:01:03.000Delete
212006-01-01 01:01:01.000Insert
222006-01-01 01:01:02.000Update
TIA, CFR
View 5 Replies
View Related