Row Size Over Head
Apr 25, 2000
Hi all !
I have a table where there are a number of columns with varchar(20) and varchar(255).
I am looking at a table with 4 varchar(255) and 10 varchar(20) 's.
I have to estimates the size of the table.I can do that given the rowsize and the number of rows in the table.
My problem is what is the kind of over head that I need to take into account when I am dealing with a table with soo many variable length columns when calculating the row size?
What is the over head difference between char datatye and varchar datatype?
I can't go for char datatypes now.
Help and info regarding this is very much appreciated.
regards
Sush.
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Jan 25, 2008
Hello!
I try to execute the below statement on a column, I've been trying on a row where subType3 contains this string ",31,32,34,23,55,54,39,44,51,52," without the ",. The column is declared as varchar(MAX)
SELECT subType3 FROM aTable WHERE CONTAINS(subType3, '32')
The above statement executes and returns the result as expected, BUT if I execute this:
SELECT subType3 FROM aTable WHERE CONTAINS(subType3, '55')
then nothing is returned. I can't see any real pattern, 32, 34 and 54 returns the row. If I try with any of the others nothing is returned....Why is this?
I sort of need to use contains, if I dont wan't to start chopping up the string and patindex or something like that. Patindex works by the way, but when I have many values then it gets a bit cumbersome using anything else than contains.
Thanks for any and all help,
Cheers!
/Eskil
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Feb 13, 2007
Hello
Is there a way to get the column head in query output.
Thanks
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Dec 8, 2005
Question:
How do I return a list of items that matches one or more criteria that I pass in?
Background:
A user enters a sales lead (a company is looking for a place to have their event). That lead has a number of
criteria elements (start date, end date, city, region, maximum room rate, one or more amenities, etc. - more
details below) that should be used when trying to find Hotels that match that criteria. Obviously, some
criteria is more important than others (city, start and end date are more important than the maximum room
rate) - and it's unlikely that many (if any) of the Hotels will match *all* of the criteria entered by the
user. So, I'm looking to return a list of Hotels that match at least one of the criteria - if possible,
ordered by how many criteria elements match.
What makes this query particularly difficult, is that some of the criteria to match are stored in multiple
tables. For example, each Hotel has "Amenities" (Golf, Spa, etc.) - that are stored in a seperate table.
When a user enters a lead, they select which amenities they want to match. Also, a lead specifies a number
of rooms to block for each day between the Arrival and Departure date - these numbers can change from day
to day - but for this query - I think it's acceptible to get the largest number of rooms needed from any of
the days and compare that one number against the "MaxDailyRoomBlock" field of a Hotel (represented by the
"Property" table). Also, since a Hotel has different rates defined for each season, the query will have to
match the "MaxRate" against the rate of the correct season based on the Arrival and Departure dates. Also,
the rate can be within 20% of the stated "MaxRate".
Here are the following variables that will be passed into the query as criteria items:
RequestCity, RegionINDEID, ArrivalDate, DepartureDate, MaxRate, MaxTheaterSeating, MaxBanquetSeating,
MaxSchoolSeating, MaxBreakoutRooms, MaxRoomBlock
I know this is a huge post - and I sincerly appreciate any help you can provide.
DDL for Tables:
*In the DDL.txt attachment
Sample Data:
* In the data.txt attachment
Previous Attempts:
Unfortunately, I don't even know where to begin, so I haven't tried anything yet.
Expected Results:
PropertyIDNameNumOfMatches
-----------------------------------------------
1Marriot San Diego5
2Hilton San Diego3
3Hilton San Diego Downtown2
Thanks in advance, again...
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Aug 24, 2007
I am the IS manager for a medium business. I am also the DBA and the programmer and help desk and trainer etc etc.
In 2003 I embarked on a project which went live in 2005. We contracted to have our order processing system rewritten into SQL. I went from a character based 4GL language called Progress running in a UNIX enviroment to a knock down, drag out, full blown microsoft solution. I have been operating this new system for two years making modest enhancements and improvements as my skills with microsoft are increasing and improving (retraining my brain to think objects)and hiring contractors to do the really cool fun stuff.
I have to learn Server 2003, SQL Server 2005, SQL Express, T-SQL, Replication, Reporting Services, SSIS, IIS, DTS, Visual Source Safe, Visual Studio, VB, C#, ADO.NET and the .NET Framework fits in here too although I don't really know where.
I hope you are starting to understand my feeling of being 'in over my head'. Right now everything is running perfect. I do backups, restore them and create new reports. Basic stuff.
On top of this our company has merged with a larger one and this bigger company does not have a microsoft solution. They have an AS400 home grown application that I do not want to learn. I will not go backwards!!!!! I will loose my job/position in the next couple of years. I want certifications (to get that interview).
I just don't have the skills to back up the certification (I don't want to be one of those exam cram people) I do a plethora of unrelated taks all day long. Not because I have to do them I choose to do them. I like both DBA and Programming.
So, if you were me, and could get certifications and have experience to back them up what would you do first?
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Dec 18, 2007
I have a table that contains categories, users, modifydates . All three of those fields may be repeated many times.
I need to build a table that contains user, modifydate, oldcategory, newcategory, duration (number of days between modifydates when there is a category change)
I can use the min(modifydate) to get the 1st occurrence of each new category, but I am having trouble populating the oldvalue and then also getting the duration.
Adding to the complexity, I have to take the last entry of a null category prior to category being populated the first time and populate it with the first occurrence of category, Likewise, I have to populate the first occurrence of null after the last occurrence of a popoulated category. In other words, this simulates populated categories prior to first occurrence and after the last occurrence.
Any help would be great.
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May 1, 2002
I'm trying to write a script that will go against sysprocesses (I think) and find the head of a blocking chain, and how many SPIDs it is blocking on down the line.
I found a reference to a script called head_blockers.sql in the Swynk Scripts database (posted March 2000), but the script appears to no longer be available for download.
Any help would be appreciated!
Thank you,
Susan Jones
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Jan 19, 2014
I have an existing function and need to alter function to give result of the parent-description until its parent is reached.
--CREATE TABLE
CREATE TABLE [dbo].[CityData](
[Id] [int] NULL,
[ParentID] [int] NULL,
[City] [nchar](20) NULL,
[Location] [nchar](50) NULL,
[Amt] [int] NULL
) ON [PRIMARY]
[Code] ....
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Jan 24, 2008
Hi
I have a huge matrix with 8 columns and then all the data that's generated when choosing a date span. These 8 columns are Topic, Salesperson, Company and so on and then the right part of the matrix grows with values for each month.
My problem is that there are no column headers for the first 8 columns!! How come?
What I did to resolve this was to put in a table in the top left cell and then write in the corresponding column header. This works €¦ in IE but not in PDF or Excel. And I really need it when I export it to Excel.
Any ideas?
Kind regards.
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Apr 8, 2006
Data apx (5 million rows):
Span example:
-------------M---------------
___________-------------Rx-------------
Needs to b converted to this (ignore the underscore, used for spacing):
---M-------|-------M & Rx----|---Rx--
The time spans can slide either way.
Data example:
MemberID Eff_Date Term_Date Med_COB Rx_COB
1 20050101 20050912 Y N
1 20050310 20051120 N Y
1 20060101 <null> Y N
1 20060101 <null> N Y
Resulting Records need to be in this format:
MemberID Eff_Date Term_Date Med_COB Rx_COB
1 20050101 20050310 Y N
1 20050311 20050912 Y Y
1 20050913 20051120 N Y
1 20060101 <null> Y Y
Any help with this problem would be greatly appreciated. We are running SQL2K. I like most people,would like to stay away from cursors and loops if possible.
Thanks,
nemesis01
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Aug 21, 2007
Here's My scenario,
I am using SQL2k5 with sp2. In have three branch stores in my site each with SQL 2k5 and a master server at headoffice also with SQL 2k5. The sales transactions for each store goes to a table called sales transaction. What I need is that the info from the sales transaction of each branch populate the sales transaction table at the head office, but not vice versa. That is to say the sales transaction table at each branch must have their information alone and no information from any other branch. Only the head office must have sales transactions from all branches in it's table. What type of replication do i use and how do i implement it?
Muchas muchas gracias.
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Sep 4, 2007
I am trying to resize a database initial log file from 500M to 2M. I€™m using€?
ALTER DATABASE <DBNAME> MODIFY FILE ( NAME = <DBLOGFILENAME, SIZE = 2 ) "
And I'm getting "MODIFY FILE failed. Specified size is less than current size." I tried going into the database properties and setting the log file to 2M, but it doesn€™t keep the changes.
Any help with this process?
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Jan 1, 2008
Hi
Just started using Visual Studio Express 2005 (Web) with Server 2005 Express and I am trying to extract the data from a SQL but cannot find how to connect to and open a SQL recordset so as to use the values of a single record dotted around a page. I would be using the values in the <Head> and <body> areas of the page. The body of the page would utilise standard data grids for sub and sub data, this being no problem.
Below is how I would have retrieved the "EndDate" value from an Access databse under asp.
Set Conn=Server.CreateObject("ADODB.Connection") Set rs=Server.CreateObject("ADODB.RecordSet") Conn.Open "DBQ=" & Server.MapPath("../private/Drapers.mdb") & ";Driver={Microsoft Access Driver (*.mdb)};" rs.open "SELECT * FROM Products where ID = 44", Conn, 3, 3 rs("Metta1") rs("Metta2")
The following is from the Web.config file
<connectionStrings><add name="ConnectCB" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|CBBasic.mdf;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient"/></connectionStrings>
I have tried lots of things that were either code that was superceeded or just plainly didn't work.
Any help would be appreciated.
John
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Jun 6, 2000
On our datawarehouse server we are regularly having a 1203 error, causing the sql-server to hang. We get this message in the errorlog: Failed Assertion = 'm_activeSdesList.Head () == NULL'. In the knowledgebase I found a bug description that is very lookalike to our problem.
Article: Q240853 FIX: Lock Escalation With Parallel Query May Cause 1203 Error And Server Shutdown
*** part of the article ***
SYMPTOMS
If a lock escalation occurs while running a parallel query, it is possible to encounter error message 1203 as follows:
spid7 Process 7 unlocking unowned resource: KEY: 13:117575457:2 (35010560ebcd)
spid7 Process 7 unlocking unowned resource: KEY: 13:117575457:2 (35010560ebcd)
spid7 Error: 1203, Severity: 20, State: 1
spid7 Process ID 7 attempting to unlock unowned resource KEY: 13:117575457:2 (35010560ebcd).
spid7 Error: 1203, Severity: 20, State: 1
spid7 Process ID 7 attempting to unlock unowned resource KEY: 13:117575457:2 (35010560ebcd).
The error message included in the error log probably mentions the same lock resource in several of the error messages.
Once the error is printed, an assertion message similar to the following is also printed:
1999-08-09 13:15:26.79 kernel SQL Server Assertion: File: <proc.c>, line=1866 Failed Assertion = 'm_activeSdesList.Head () == NULL'.
After a dump of the stack for all threads, the server initiates a shutdown of the SQL Server process.
...
*** end ***
You can find the complete article on: http://support.microsoft.com/support/kb/articles/q240/8/53.asp?LN=EN-US&SD=gn&FR=0
We can't use the workaround, because that would shut out parallelism, which is necessary for the project.
There is a fix, but in the article Microsoft says: "A supported fix that corrects this problem is now available from Microsoft, but it has not been fully regression tested and should be applied only to systems experiencing this specific problem.".
You understan,d this is not one of my favorite type of fixes...
Does anyone have already installed the fix mentioned? Had any problems with it, or did it cause some other troubles?
Thx,
Kurt De Cauwsemaecker
Database Administrator
Telepolis Antwerpen
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Jun 15, 2006
I installed sql 2005 a while back. Then I recently found out my file system was fat32 (I don't understand why the hardware people did this...) and I had to convert to NTFS. Naturally the sql service no longer worked so I uninstalled inorder to reinstall now I can't reinstall it I keep getting this message
native_error=5039, msg=[Microsoft][SQL Native Client][SQL Server]MODIFY FILE failed. Specified size is less than current size.
I'll try to post the full log in a new post.
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Mar 16, 2007
Hi folks,Can anyone enlighten me here? I'm trying to use a SPROC which, when supplied with an int, looks up the table and returns certain columns from it. I'm using a SqlCommand, here's my codebehind: ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SqlCommand dataSource = new SqlCommand("retrieveData", new SqlConnection(dbConnString)); dataSource .CommandType = CommandType.StoredProcedure; dataSource .Parameters.AddWithValue("id", poid); dataSource .Parameters.AddWithValue("title", title).Direction = ParameterDirection.Output; dataSource .Parameters.AddWithValue("creator", creator).Direction = ParameterDirection.Output; dataSource .Parameters.AddWithValue("assignee", assignee).Direction = ParameterDirection.Output; etc, etc... And the SPROC:------------------------------------------------------------------------------------------------------------------set ANSI_NULLS ONset QUOTED_IDENTIFIER ONGOALTER PROCEDURE [dbo].[retrieveData] @id int, @title varchar(50) OUTPUT, @creator varchar(50) OUTPUT, @assignee varchar(50) OUTPUT, @contact varchar(50) OUTPUT, @deliveryCost numeric(18,2) OUTPUT, @totalCost numeric(18,2) OUTPUT, @status tinyint OUTPUT, @project smallint OUTPUT, @supplier smallint OUTPUT, @creationDateTime datetime OUTPUT, @amendedDateTime datetime OUTPUT, @locked bit OUTPUT AS /**SET NOCOUNT ON; **/ SELECT [title] AS [@title], [datetime] AS [@creationDateTime], [creator] AS [@creator], [assignee] as [@assignee], [supplier] as [@supplier], [contact] AS [@contact], [delivery_cost] AS [@deliveryCost], [total_cost] AS [@totalCost], [amended_timestamp] AS [@amendedDateTime], [locked] AS [@locked] FROM purchase_orders WHERE [id] = @id; ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ The id being passed in is definately not null, and is set to a value of an item I know exists. The resulting error is:
Exception Details: System.InvalidOperationException: String[1]: the Size property has an invalid size of 0.Line 63: retrievePODetails.Connection.Open();Line 64: retrievePODetails.ExecuteNonQuery();[InvalidOperationException: String[1]: the Size property has an invalid size of 0.] System.Data.SqlClient.SqlParameter.Validate(Int32 index) +717091... ... Can anyone see anything I'm missing? Thanks,Ally
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Nov 14, 2007
Using C#, SQL Server 2005, ASP.NET 2, in a web app, I've tried removing the size from parameters of type NCHAR, NVARCHAR, and VARCHAR. I'd rather just send a string and let the size of the parameter in the SP truncate any extra chars if need be. I began getting the error below, and eventually realized it happened only with output parameters, as in the code snippet below.String[3]: the Size property has an invalid size of 0. par = new SqlParameter("@BusinessEntity", SqlDbType.NVarChar); par.Direction = ParameterDirection.Output; cmd.Parameters.Add(par); cmd.ExecuteNonQuery();What's the logic behind this? Is there any way around it other than either finding out what the size should be, or assigning a size larger than would ever be needed? ThanksMike Thomas
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Jul 25, 2007
I have one db test with one .mdf and .ldf file...mdf file size is 100mb and for some reson i removed all the tablesfrom that .mdf file and transfer it into new secondary file so all thetables moved into secondary file now i want to reduce the first .mdffile from 100 mb to 50mb is that possible,it's showing 90mb is free.Please reply
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Jan 24, 2006
I want to know encrypted data's size for designing database field size.
For example, cardnumber varchar(20) Encrypted by Triple_DES and PassPhrase, How match size does need to encrypted data store field.
I think the size does not depend to PassPhrase char length.
Regards,
Yoshihiro Kawabata
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Dec 11, 2007
I am getting error to run stored procedure using executenonquery method. The Stored Procedure is having OUTPUT parameter.
ExecuteNonQuery statement is called using SqlHelper.
Error : String[18]: the Size property has an invalid size of 0
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Jul 23, 2005
Just wanted to know what is a general rule of thumb when determining log file space against a database's data file.We allow our data file for our database to grow 10%, unlimited. We do not allow our log file to autogrow due to a specific and poorly written process (which we are in a three month process of remove) that can balloon the log file size.Should it be 10% of the Data file, i.e. if the Date file size is 800MB the log file should be 8MB?I realize there are a myraid of factors that go against file size but a general starting point would be nice.ThanksJeff--Message posted via http://www.sqlmonster.com
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Apr 20, 2015
The Tabular model is showing 19 GB on disk, but it is acquiring around 40 GB in memory.
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Feb 15, 2000
Hi,
An MSSQL DB running SAP indicates a smaller DB size (MMC & SAP) than the actual physical size. The difference is about 8 GB.
A lot of records were deleted before this. Did they remain in the DB as NULL values or something ?
Does anyone know what the reason for this could be ? And how to clean this up ?
Thanks in advance,
Paul
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Mar 2, 2008
Hi,
i use this script that show me the size of each table and do the sum of all the table size.
SELECT
X.[name],
REPLACE(CONVERT(varchar, CONVERT(money, X.[rows]), 1), '.00', '') AS [rows],
REPLACE(CONVERT(varchar, CONVERT(money, X.[reserved]), 1), '.00', '') AS [reserved],
REPLACE(CONVERT(varchar, CONVERT(money, X.[data]), 1), '.00', '') AS [data],
REPLACE(CONVERT(varchar, CONVERT(money, X.[index_size]), 1), '.00', '') AS [index_size],
REPLACE(CONVERT(varchar, CONVERT(money, X.[unused]), 1), '.00', '') AS [unused]
FROM
(SELECT
CAST(object_name(id) AS varchar(50)) AS [name],
SUM(CASE WHEN indid < 2 THEN CONVERT(bigint, [rows]) END) AS [rows],
SUM(CONVERT(bigint, reserved)) * 8 AS reserved,
SUM(CONVERT(bigint, dpages)) * 8 AS data,
SUM(CONVERT(bigint, used) - CONVERT(bigint, dpages)) * 8 AS index_size,
SUM(CONVERT(bigint, reserved) - CONVERT(bigint, used)) * 8 AS unused
FROM sysindexes WITH (NOLOCK)
WHERE sysindexes.indid IN (0, 1, 255)
AND sysindexes.id > 100
AND object_name(sysindexes.id) <> 'dtproperties'
GROUP BY sysindexes.id WITH ROLLUP) AS X
ORDER BY X.[name]
the problem is that the sum of all tables is not the same size when i make a full database backup.
example of this is when i run this query against my database i see a sum of 111,899 KB that they are 111MB,but when
i do full backup to that database the size of this full backup is 1.5GB,why is that and where this size come from?
THX
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Apr 14, 2015
Here are my scenarios:
We have an application with replicated environment setup on sql server 2012 . Users will have a replica on their machines and they will replicate to the master database. It has 3 subscriptions subscribed to the publications on the master db.
1) We set up a replica(which uses sql server 2012) on a machine with no sql server on it. After the initial synchronization(used replmerge tool) the mdf file has grown to 33gigs and ldf has grown to 41 gigs. I went to sql server management studion . Right click and checked the properties of the local database. over all size is around 84 gb with little empty free space available.
2) We set up a replica(which uses sql server 2012) on a machine with sql server 2008 on it. After the initial synchronization(used replmerge tool) the mdf file has grown to 49 gigs and ldf has grown to 41 gigs. I went to sql server management studio , Right click and checked the properties of the local database. over all size is around 90 gb with 16 gb free space available.
3) We set up a replica(which uses sql server 2012) on a machine with sql server 2012 on it. We have dropped the local database and recreated the local db and did the initial synchronization using replmerge tool. The mdf file has grown to 49 gigs and ldf has grown to 41 gigs. I went to sql server management studio , Right click and checked the properties of the local database. over all size is around 90 gb with 16 gb free space available.
Why it is allocating the space differently? This is effecting our initial replica set up times.
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Jun 10, 2014
It is possible to find table size and in that table each row size.
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Aug 23, 2006
Hi, I have a problem importing data from SQL Server 2000 'text' columns to SQL Server 2005 nvarchar(max) columns. I get the following error when encountering a transfer of any column that matches the above.
The error is copied below,
Any help on this greatly appreciated...
ERROR : errorCode=-1071636471 description=An OLE DB error has occurred. Error code: 0x80004005.An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "Unicode data is odd byte size for column 3. Should be even byte size.". helpFile=dtsmsg.rll helpContext=0 idofInterfaceWithError={8BDFE893-E9D8-4D23-9739-DA807BCDC2AC} (Microsoft.SqlServer.DtsTransferProvider)
Many thanks
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Aug 11, 2000
Hi,
I am using
exec sp_helpdb
go
dbcc sqlperf(logspace) for
getting database size and log size. Is this gives the correct
database size and log size or Is there any other way to get the logsize and database size by means of query analyzer.
Thanks in Advance.
Seenu. S
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Jul 20, 2005
I have a SQL Server database that is showing 2853.44 mb in size but when Iexport the data into MS Access the size is less than 1 mb. Can anyone tellme how to reduce the size of my SQL Server database so that it's less than15 mb?Thanks in advance! Rob
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Oct 30, 2007
Why is it that lately our full backup (.bak) file size is more than 2x the size of the actual database file size (.mdb)?
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Apr 15, 2008
I have a log file that is approximately 50 GIG. I backed up just the log and the file size of the .bak is 192 GIG . Why is this? Shouldn't it be closer to the 50 GIG.
Normally I wouldn't let log grow this much. But we are in process of getting new server up and running and don't have backups going yet. They are working on getting that up and running this week.
So I did a log backup to give me back some log space for now but was concerned when I saw the size of the .bak file.
When I view media contents of the backup device it shows one tranaction log back up and size of 192 GIG.
What is up with this. I know in SQL 2000 the log backup files where never this big. they were about the size of the log itself.
Any ideas?
Stacy
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Sep 22, 2004
Hi!
I'm using SQL Server 2000!
How to know then Data files size and Log files size by Store Procedures or Sql query?
Thanks!
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Nov 3, 2004
Hi all,
I need your help in fixing SQL error. I have a SQL table which has more than 50 columns. 5 of them should hold 1000+ character text. I allocated nvarchar(2000) for each of those fields. But Iam getting an error when Iam trying instert the text from C#.net application.
Error Message is:
System.Data.SqlClient.SqlException: Cannot create a row of size 8739 which is greater than the allowable maximum of 8060. The statement has been terminated. at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at UsefulFunctions.DataBase.ExecuteSql(String Sql, ArrayList arrParam) in D:ProjectsUsefulFunctionsClass1.cs:line 395 at racf2.RacfTicketClose.Btn_Close_Click(Object sender, EventArgs e) in d:documents and settingswwwwwwwwwwwwwwinhousesecurity
acf2
acfticketclose.aspx.cs:line 167
But When I copied complete row(from table) in to MS word file and check the character count, it's not 8739. It's only 3457.
Do you guys have any idea , why am I getting an error and how to fix it.
Thanks in advance.
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