Hi, I'm a webmaster of http://www.jivejewelry.com. Somehow the website seems slows. The developer told me that a datatype in the database design could be causing the problem. I don't believe it that is possible. Is this actually possible? Please help.
We have few stored procedures that use nvarchar datatype, this was not issue on SQL server 7.0 but in 2000 becomes a big issue.
For example query that runs for 3 minutes in SQL server 2000 by replacing NVARCHAR to VARCHAR the same query runs for 2 seconds.
The biggest challenge that I have deals with tables and user-defined datatypes of NVARCHAR that has been bounded to the table.
How can I alter those without data corruption?
Hi there,
I have been hired for a couple of weeks to investigate the performance of a sql server 2000 system.
One of the things that strikes me is that all the Primary key (identity field) fileds uses an decimal(18,0) as it's datatype.
An decimal with a precision of 18,0 takes 9 bytes for each column, while an int takes only 4 bytes and and bigint 8 bytes.
Many tables aren't that big, so the values will fit in an int datatype.
1. Is iot a good option to change the decimals columns to an int column ?
2. Many of these columns are indexed by a clustered index. Can the decimal datatype be a performance issue ?
3. sometimes they have deadlocks due page splits. Can this by reduced by changing the data types, while more data fit's into an page?
Thanks in advance,
Greetz,
Patrick de Jong
Need to know if the varchar datatype field will ingore leading zeros when compared with numeric datatype ?
create table #temp
(
code varchar(4) null,
id int not null
)
insert into #temp
[Code] .....
Good afternoon,
I have an issue with an ssis variable datatype.
The scenario is as follows:
I have a stored procedure:
PROCEDURE [dbo].[sp_newTransaction]
@sourceSystem varchar(50),
@txOut NUMERIC(18,0) OUTPUT
AS
insert into scn_transaction (sourceSystemName) values(@sourceSystem);
SELECT @txOut = @@identity
Whose purpose is to perform an insert into a table and return me the identity value of the inserted record, which I'll then use throughout the rest of my package. The identity column in the inserted table is numeric(18,0).
I execute the stored proc with the following sql with an OLE DB connection manager:
exec sp_newTransaction ?, ?
The first parameter is a string variable from earlier in the package, and the second is the output parameter. I have the following parameter mappings to the execute sql task:
User:ystxId output numeric 1 -1
User:ourceSys input varchar 0 -1
The proc is correctly called, and the row insesrted, however I get a type conversion error when SSIS attempts to map the return parameter to my package variable... I've tried all sorts of combonations, and can't seem to get it to execute.
At one point I wasn't returning a numeric, but rather an int from the stored proc, and all was well until I went to use the variable in a derived column later in the package, and the type was converted quite incorrectly (a 1 was 77799789080 or some such), indicating a type conversion error likely related to the encoding of the number.
I'd like to keep the datatypes as numeric and make ssis use those - any pointers are greatly appreciated as to what type my package variable should be to allow proper assignment of a sql server numeric type to it.
Thanks much,
B
Database is SQL Server 2000
I have a field in a table that stores date of birth. The field's datatype is char(6) and looks like this: 091703 (mmddyy). I want to convert this value to a datetime datatype.
What is the syntax to convert char(6) to datetime?
Thank you in advance.
Hi,
I imported a table from Accees to SQL 7 with data in it.
I need to modify one of the datatype columns to "datetime" from nvarchar.
I tried to convert it manually, in SQL Server Enterprise Manager tool, but it gave me an error.
I also tried, creating another column "DATE2-datatype:datetime" and updating the column with the old one.
UPDATE users SET DATE2 = DATE.. But it also faild,..
How can I modify the column?
Thank you.
HI,I have a table with IDENTITY column with the datatype as INTEGER. Nowthis table record count is almost reaching its limt. that is totalrecord count is almost near to 2^31-1. It will reach the limit with inanother one or two months.In order to avoid the arithmentic overflow error 8115, we would likechange the datatype from INT to BIGINT. we hope this will solve ourproblem.How do I approch this datatype conversion?. Since the data count ishuge, that leads to a long down time of database.we need better approach or solution for this problem?. kindly give mea better solution that will reduce the total downtime of the productiondatabase.?.Regards
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Hi guys..
i have so doubts in my mind and that i want to discuss with you guys... Can i use more then 5/6 fields in a table with datatype of Text as u know Text can store maximu data... ? acutally i am trying to store a very long strings values into the all fields. it's just popup into my mind that might be table structer would not able to store that my amount of data when u use more then 5/6 text datatypes...
and another thing... is which one is better to use as data type "Text" or "varchar(max)"... ?
if any article to read more about these thing,, can you refere to me...
Thanks and looking forward.-MALIK
1. Use mssql server agent service to take the schedule
2. Use a .NET windows service with timers to call SqlClientConnection
above, which way would be faster and get a better performance?
Hello Everyone,I have a very complex performance issue with our production database.Here's the scenario. We have a production webserver server and adevelopment web server. Both are running SQL Server 2000.I encounted various performance issues with the production server with aparticular query. It would take approximately 22 seconds to return 100rows, thats about 0.22 seconds per row. Note: I ran the query in singleuser mode. So I tested the query on the Development server by taking abackup (.dmp) of the database and moving it onto the dev server. I ranthe same query and found that it ran in less than a second.I took a look at the query execution plan and I found that they we'rethe exact same in both cases.Then I took a look at the various index's, and again I found nodifferences in the table indices.If both databases are identical, I'm assumeing that the issue is relatedto some external hardware issue like: disk space, memory etc. Or couldit be OS software related issues, like service packs, SQL Serverconfiguations etc.Here's what I've done to rule out some obvious hardware issues on theprod server:1. Moved all extraneous files to a secondary harddrive to free up spaceon the primary harddrive. There is 55gb's of free space on the disk.2. Applied SQL Server SP4 service packs3. Defragmented the primary harddrive4. Applied all Windows Server 2003 updatesHere is the prod servers system specs:2x Intel Xeon 2.67GHZTotal Physical Memory 2GB, Available Physical Memory 815MBWindows Server 2003 SE /w SP1Here is the dev serers system specs:2x Intel Xeon 2.80GHz2GB DDR2-SDRAMWindows Server 2003 SE /w SP1I'm not sure what else to do, the query performance is an order ofmagnitude difference and I can't explain it. To me its is a hardware oroperating system related issue.Any Ideas would help me greatly!Thanks,Brian T*** Sent via Developersdex http://www.developersdex.com ***
View 2 Replies View RelatedHello Everyone,I have a very complex performance issue with our production database.Here's the scenario. We have a production webserver server and adevelopment web server. Both are running SQL Server 2000.I encounted various performance issues with the production server witha particular query. It would take approximately 22 seconds to return100 rows, thats about 0.22 seconds per row. Note: I ran the query insingle user mode. So I tested the query on the Development server bytaking a backup (.dmp) of the database and moving it onto the devserver. I ran the same query and found that it ran in less than asecond.I took a look at the query execution plan and I found that they we'rethe exact same in both cases.Then I took a look at the various index's, and again I found nodifferences in the table indices.If both databases are identical, I'm assumeing that the issue isrelated to some external hardware issue like: disk space, memory etc.Or could it be OS software related issues, like service packs, SQLServer configuations etc.Here's what I've done to rule out some obvious hardware issues on theprod server:1. Moved all extraneous files to a secondary harddrive to free up spaceon the primary harddrive. There is 55gb's of free space on the disk.2. Applied SQL Server SP4 service packs3. Defragmented the primary harddrive4. Applied all Windows Server 2003 updatesHere is the prod servers system specs:2x Intel Xeon 2.67GHZTotal Physical Memory 2GB, Available Physical Memory 815MBWindows Server 2003 SE /w SP1Here is the dev serers system specs:2x Intel Xeon 2.80GHz2GB DDR2-SDRAMWindows Server 2003 SE /w SP1I'm not sure what else to do, the query performance is an order ofmagnitude difference and I can't explain it. To me its is a hardware oroperating systemrelated issue.Any Ideas would help me greatly!Thanks,Brian T
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Please advice.
I have a message box or multiline textbox on my form and I am storing into an SQL DB. I currently have it as a VARCHAR, but that doesn't seem to store the carriage returns. Do I have to store them as a nvarchar, text, ntext or something else to make the returns show? I am pulling them out of the DB and showing them in a label where I replace the with a <br>.
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The data type is a varchar(10)
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Thanks,
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fathima writes "what data type is used to store unlimited content in sql server.
Actually i need to store a text book
pls reply i need it for a proejct work."
what date type is bet used when there is some occaions the user may enter 2.5 etc
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Over the years I have always used the decimal(18,0) as the datatype forprimary keys. Aside from the number of significant numbers involved,would BigInt type be better for performance or is decimal(18,0) still okay.--Don VaillancourtDirector of Software DevelopmentWEB IMPACT INC.phone: 416-815-2000 ext. 245fax: 416-815-2001email: Join Bytes! <mailto:donv@webimpact.com>web: http://www.web-impact.comWeb Impact Inc. <http://www.web-impact.com>This email message is intended only for the addressee(s) and containsinformation that may be confidential and/or copyright.If you are not the intended recipient please notify the sender by replyemail and immediately delete this email.Use, disclosure or reproduction of this email by anyone other than theintended recipient(s) is strictly prohibited. No representation is madethat this email or any attachments are free of viruses. Virus scanningis recommended and is the responsibility of the recipient.
View 35 Replies View RelatedI am using Visual Studio .NET 2003 with SQL Server 2000. I am trying toinsert the date and time into a SQL database by using hour(now). I amhaving a hard time trying to figure out which datatype to use in SQL tostore this value. I have tried using datetime, char, nchar, text andnothing seems to work. Anyone have any ideas? Thanks!Regards, :)Christopher Bowen
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View 4 Replies View Relatedhello !I got some problems here. I have an attribute that determines the unitof something,e.g. the size of using "mm" , the length of using "seconds"and something others may using "n-page", so ,which data type should Iuse. the "nvarchar" or others?thank you very much!*** Sent via Developersdex http://www.developersdex.com ***
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Dror.
Hi guys
What are alpha values and what datatype stores them.
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