Impact on performance of changing Text column size.
However, many of them were regarding older releases of SQL Server.
Does the architecture in 2012, 2014 releases make this less of an issue ?
In other words, why bother going from Varchar(1000) to Varchar(50) ?
I'm just thinking maybe there is column compression automatically now.
One purchased app stored user's multiple lines input into a varchar column in which including char(13) and char(10).
My app need to select this value and format to multiple lines text in one text box.
How to code to output it?
We have a small table of about 13 million rows that needs altered. A column in the table needs to be changed from a varchar(20) to a varchar(500). When we ran the alter table script, 3 hrs later and it wasn't done running. Any suggestions on what we can do to speed up the process?
Thanks ahead of time
DMW
Edit:
We are running SQL Server 2000 and the db at the time was running in simple mood
I am stuck! and need help!
I have a problem I can't seem to find the solution with this aweful limitations on VARCHAR fields of 255.
Within a stored procedure called Store_Check, I need to dynamically build a string (@string) using VARCHAR(255) since the text datatype can't be used in a stored procedure.
So,this string is built according to whether the Store ID is NOT NULL. So if the StoreID is not null, I start building this string 'Exec Update_Store_Address @StoreID1, @address2'. There are 20 StoreID's passed into Store_Check. IF all 20 StoreID's are not NULL, the executed String greatly exceeds 255 because the string winds up looking like this
'Exec Update_Store_Address @StoreID1, @address1 Exec Update_Store_Address @StoreID2, @address2 Exec Update_Store_Address @StoreID3, @address3 Exec Update_Store_Address @StoreID4, @address4 Exec Update_Store_Address @StoreID5, @address5 Exec Update_Store_Address @StoreID6, @address6 etc. etc.'
I am not executing this string within the StoredCheck procedure. It needs to be passed as ONE string to a VB program and it gets executed by the VB program. Even if I create 4 local variables and concatenate them, it stops at the 255th character.
Also, a local varialbe of type TEXT cannot be declared within stored procedure.
What can I do? I am stuck!
Angel
I'm new to mssql.
I need to change the size of a column of a table from char(255) to char(500). I used the line:
alter table table_name alter column column_name char(500)
When I run that command, I get a message that it was sucessful. However, when I try to enter data into the changed column, the number of characters I can enter is still 255. I check the information schema for the column and the 'character_maximum_length' field is 500.
What is the problem here? Is the maximum allowable length for char 255? How can I get a column to have 500 characters?
I must increase column (filed) size in existing datebase but without usingEnterprise manager....(Becouse we use MSDE on our clients PCs)The Filed is part of primary and foreign key constraints....And every constraint has diferent index number in each database...for example (PK_something_9e382hjl8), and I don't know how to pick thisvalue before "drop constraint" command.....Thank you very much....
View 1 Replies View Relatedcreate table tblxmldata
(id int, xmltext varchar(max))
insert into tblxmldata values(1,'<associatedText><value type="PO">GTT taken</value></associatedText>')
insert into tblxmldata values(1,'<associatedText><value type="PO">Check sugar today please</value></associatedText>')
I want the output as
GTT taken
Check sugar today
When I change a column from text to varchar using thedesign view of a table within Enterprise Manager thevarchar value (less than 8000 characters) appears in thecolumn but does SQL Server automatically delete the textvalues from their pages?If not are they removed by routine reindex/defrag orshould I create a new table, import from the text asvarchar and drop the old table to make sure the pagesstoring the original text version of the values aredeleted?..
View 1 Replies View RelatedCannot use dynamic sql in current context. So need some help regarding this.I am developing a stored procedure to update a table. Sending Column names as parameters, but not able to use them as given below.INSERT INTO Books (@Column1, @Column2) values.. Any way to execute without using dynamic sql?..Thanx.
View 1 Replies View RelatedI need to extract specific text elements from a varchar column. There are three keywords in any given string: "wfTask," "wfStatus" and "displayReportFromWorkflow." "wfTask" and "wfStatus" can appear multiple times, but always as a pair and will each be followed by by "==" (with or without surrounding spaces). "displayReportFromWorkflow" is always followed by "(" and there can be spaces on either side. The text elements will be between a pair of double quotes, and following one of keywords. For each row, I need to return the task, status and report name.
declare @t table (rowID int, textValue varchar(1024))
insert @t
(rowID, textValue)
values
[Code] ....
Output:
rowID, Task, Status, ReportName
----- --------- ------- ------------------------
1, Issuance, Issued, General Permit
2, Issuance, Issued, Capacity Letter Type III
2, Review, Denied, Capacity Letter Type III
I started with a string splitter using the double quote character, referencing elements "i" and "i+1" where the text like '%wfTask%' or '%wfStatus%' or '%displayReportFromWorkflow%', but the case of multiple task/status in a row has confounded me so far.
Unfortunately, CLR is not an option.
I am unable to get FTS working where the column to be searched is type varchar(MAX) or Text. I can get this to work if my column to be indexed is some statically assigned array size such as varchar(1000).
For instance this works, and will return all applicable results.
CREATE TABLE [dbo].[TestHtml](
[ID] [int] IDENTITY(1,1) NOT NULL,
[PageText] [varchar](1000) NOT NULL,
CONSTRAINT [PK_TestHtml] PRIMARY KEY CLUSTERED
SELECT * FROM TestHTML WHERE Contains(PageText, @searchterm);
And this does not. It returns zero results what so ever.
CREATE TABLE [dbo].[TestHtml](
[ID] [int] IDENTITY(1,1) NOT NULL,
[PageText] [varchar](MAX) NOT NULL,
CONSTRAINT [PK_TestHtml] PRIMARY KEY CLUSTERED
SELECT * FROM TestHTML WHERE Contains(PageText, @searchterm);
Could someone please tell me what I need to do to enable FTS on varchar(MAX) or Text columns?
Hello :
In a title of a column of a table, I put a too long text, with sorting, but when I spread (display) the report has a problem on text of the title of the column there.
The probleme settles (arises) when I activate the sorting to post (show) the image of sorting.
How to fit the size of the cell to the text?
Thenk's.
Hello,A while back I dropped a text column from a SQL Server 7 databaseroughly 3GB in size. I expected the size of the database to decreaseby around 1GB, but no change occurred. After searching usenet, Idiscovered that SQL Server 7 has no way of reclaiming that space, butthat there is some command that can be run in SQL Server 2000 thatwill reclaim it.I have since migrated this database to SQL Server 2000, and am nowtrying to figure out what that command is, but cannot locate anyusenet posts about it... also tried searching books online, but can'tfind anything that way either.Does anyone know what I should run?Thanks,Tom
View 6 Replies View Relatedi have a situation where is need to get email address from a varchar column. Here is some sample data for five records; The format can be change.
dummy text;
Tel: +44 (0)1234 566788;
Email: bbc@co.uk
Admissions dummy text;
T: +44 (0)1234 4444;
E: xyz@co.uk;
dummy text;
dummy text;
Tel: +123 32323 33;
Email: test@yahoo.com;
dummy text;
t: +88 (0) 115 333 5553;
f: +99 (0) 115 222 8888
e: dummy@gmail.com;
dummy text;
t: +11 (0) 222 222 2222;
e: myemail@test.com;
w:http://www.yahoo.com/faqs;
Working on partitioning a few large tables. One of the tables included a text column and the €śTEXTIMAGE_ON [PRIMARY]€? clause which would prevent the partitioning of this table. After some research we found that the data was legacy and no longer used. We updated the column on the affected rows to NULLS and altered the column to a VARCHAR(20)
When I attempted to run the ALTER TABLE SWITCH I encountered the error
Msg 4947, Level 16, State 1, Line 1
ALTER TABLE SWITCH statement failed. There is no identical index in source table 'LocalDeltanet.dbo.testresultsjoe' for the index 'PKIDX_testSummary' in target table 'LocalDeltanet.dbo.testresults_part'.
After a lot of grief and testing I determined that the message was bogus and the real issue is that the 'sys.tables' still has €ślob_data_space_id€? with a value of 1 for this table.
I created a copy of the table with the text column altered to varchar and one with just the varchar to begin with. After copying data from the original table, I tried to run the alter switch. It failed once again for the text column altered to varchar table, but it worked for the varchar from the start.
Since it appears that this value is causing my issues, is there anyway to update the table in place. I know I can BCP the data out, but that would take too long and would defeat the advantage of using the alter switch method.
BOL States:
The allow updates option is still present in the sp_configure stored procedure, although its functionality is unavailable in Microsoft SQL Server 2005 (the setting has no effect). In SQL Server 2005, direct updates to the system tables are not supported. This means we cannot update the table manually.
Thanks
I keep getting requests to increase the width of a varchar colum every now and then.
I want to ask if its perfectly ok when you have active users connecting to the application to do this?
I have a table with column "Data" as VARCHAR, with entries like below.
1
11
2
A1
A10
A11
246
AB1
AB10
100
256
B1
B2
124
20
B21
B31
32
68
I want to select the data by converting varchar to int for numeric values and for alphanumeric it should display as it is.
SELECT CAST(dataAS INT) FROM record_tab
getting below error
Conversion failed when converting the varchar value 'A1'
any tricks to separate this column from:
"testlname,testfname comment section > comment section testlname,testfname 6/30/2015 9:05:58 AM > testlname,testfname 6/30/2015 9:06:18 AM > comment section testlname,testfname 6/30/2015 9:10:05 AM > comment section"
to:
col1 Col2 col3
testlname,testfname 6/30/2015 9:05:58 AM comment section
testlname,testfname 6/30/2015 9:06:18 AM comment section
testlname,testfname 6/30/2015 9:10:05 AM comment section
Does null column take storage in table ? I created the following table:
drop table [dbo].[TBL_orig]
CREATE TABLE [dbo].[TBL_orig](
[1] [bigint] NOT NULL,
[2] [bigint] NULL,
[3] [bigint] NULL,
[4] [bigint] NULL,
[5] [float] NULL,
[Code] ....
Does null value will take a place even no data insert to this columns and if yes this answer is 4 mb is logical gap ?
I'm moving data from one database to another (INSERT INTO ... SELECT ... FROM ....) and am encountering this error:
Msg 8114, Level 16, State 5, Line 6
Error converting data type varchar to numeric.
My problem is that Line 6 is:
set @brn_pk = '0D4BDE66347C440F'
so that is obviously not the problem and my query has almost 200 columns. I can go through one by one and compare what column is int in my destination table and what is varchar in my source tables, but that could take quite a while. How I can work out what column is causing the problem?
Until SSMS 2012 I copy and paste grid view with header directly to Excel. Problem starts when I try to copy results from SSMS 2012 because text column copy with some format and spreads around sheet and not in only one cell. What do I have to do how to select text columns and how to copy them to excel. IN SSMS 2008 it all works OK.
View 3 Replies View RelatedHow to convert MM/YYYY to MM/DD/YYYY and also YYYY to 01/01/YYYY.
This column is text column and has many other inputs.
I have a column A as 'text' datatype. This has CR-LF in between data.How to remove it.
I am trying to copy result from SQL to Excel
Eg:
A CR LF
ABC CR LF
DVB CR LF
The output should be:
A
ABC DVB
I have looked far and wide and have not found anything that works to allow me to resolve this issue.
I am moving data from DB2 using the MS OLEDB Provider for DB2. The OLEDB source sees the column of data as DT_TEXT. I setup a destination to SQL Server 2005 and everything looks good until I try and run the package.
I get the error:
[OLE DB Source [277]] Error: An OLE DB error has occurred. Error code: 0x80040E21. An OLE DB record is available. Source: "Microsoft DB2 OLE DB Provider" Hresult: 0x80040E21 Description: "Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done.".
[OLE DB Source [277]] Error: Failed to retrieve long data for column "LIST_DATA_RCVD".
[OLE DB Source [277]] Error: There was an error with output column "LIST_DATA_RCVD" (324) on output "OLE DB Source Output" (287). The column status returned was: "DBSTATUS_UNAVAILABLE".
[OLE DB Source [277]] Error: The "output column "LIST_DATA_RCVD" (324)" failed because error code 0xC0209071 occurred, and the error row disposition on "output column "LIST_DATA_RCVD" (324)" specifies failure on error. An error occurred on the specified object of the specified component.
[DTS.Pipeline] Error: The PrimeOutput method on component "OLE DB Source" (277) returned error code 0xC0209029. The component returned a failure code when the pipeline engine called PrimeOutput(). The meaning of the failure code is defined by the component, but the error is fatal and the pipeline stopped executing.
Any suggestions on how I can get the large string data in the varchar column in DB2 into the varchar(max) column in SQL Server 2005?
I have followed many tutorials on selecting and replacing text in text fields, varchar fields and char fields, but I have yet to find a single script that will to all 3 based on field type. Let's assume for a moment that I don't know where all in my database a certain value that I need changed resides ... i.e., the data's tablename and fieldname. How would I go about doing the following ... or more importantly, is this even possible in a SQL only procedure?1) Loop over entire database and get all user tables2) Loop over all user tables and get all fields3) Loop over all fields and determine the field type4) switch between field types and change a string of text from 'a' to 'b'Please be gentle, I'm a procedure newb.
View 9 Replies View RelatedI can't get a varchar to datetime conversion to work. The varchar data is in the form yyyymmddhhmi
I tried convert(datetime, '200508310926')
also tried cast('200508310926' as datetime) both have error "Conversion failed when converting date and/or time from character string"
Is there a format code that needs to be there? If so, I can't figure out what it should be.
I eventually need to convert these to dates and compare them to getdate, example:
...where convert(datetime, dtfield) >= getdate()-1
Hi,
I have an ASP.NET application that uses VARCHAR extensively in the tables and, more importantly, stored procedures (a couple hundred of them).
This app needs to start accepting foreign language in some areas, so I was wondering if there was some way to go through the tables and, more importantly, the stored procedures and change all "VARCHAR" references to "NVARCHAR" ?
Are the stored procedures stored as a text file somewhere on the server? If so I could use some sort of "replace" software utility to go through and change all VARCHAR to NVARCHAR
thanks!
-Bret
My current Query takes the DATE value stored in P.CreatedDate and makes it VARCHAR, then stores it in the table. I need to format this to return YYYYMMDD. How would I go about this?
Current Code:
Code:
CAST(P.CreatedDate AS VARCHAR) AS DateEntered,
Hi Everyone,I have a question about dynamically changing the length of a varchar(n)field, in case the value I'm trying to insert is too big and will givea "truncated" error, but before the error is given! i.e. Is there somekind of a way to "test" the length of the field while Inserting thevalue into it, and to have it automatically increase its length to thelength of the value being inserted, in case the value is too big?I've been able to do this in a "primitive" way, simply by identifyingthe specific error number in case the value is being truncated, andthen increasing the length of the varchar(n) field by using the ALTERcommand, and then duplicating the insert statement, but is there astandard (shorter) way of doing this?Here is my code (I'm working in an ASP environment):<%var_txt = "abcdefghijklmnopqrstuvwxyz12345678789"sql = "Insert Into Table1 (text) Values ('" & var_txt & "')"On Error Resume Nextconn.Execute sqlIf err = -2147217833 ThenResponse.Write "Error Recognized Successfully!<br /><br />"sql = "ALTER TABLE Table1 ALTER COLUMN text VARCHAR(" &Len(var_txt) &") NOT NULL"On Error Resume Nextconn.Execute sqlIf err<>0 ThenResponse.Write "Error while trying to alter Column:<br/>" & err & "= " & err.description & "<br />"ElseResponse.Write "Column altered successfully to: " &Len(var_txt) &"<br />"sql = "Insert Into Table1 (text) Values ('" & var_txt &"')"On Error Resume Nextconn.Execute sqlIf err<>0 ThenResponse.Write "<br />Error number 2:<br />" &err.description &"<br />"ElseResponse.Write "Now it was added successfully!HaHa!<br />"End IfEnd IfElseResponse.Write "Success."End If%>Thanks in advance!
View 2 Replies View Related
Hi all,
I'm trying to get an understanding of a serious problem I have with a large DB in production. This is going to be obvious to someone (everyone probably) <bg>
I have a table which consists of numerous varchars and ints but also a Text type field. This table resides in a SQL 2000 Database. This DB currently has a data file size of 16Gb and a Transaction Log size of 17Gb. When I edit the table and increase the size of a Varchar field from 50 to 100 these files grow to more than double their size!
Why is this happening and how can I prevent this?
TIA
NozFx
After reading Dan Guzman's blog entry (http://weblogs.sqlteam.com/dang/archive/2008/02/21/Dont-Bloat-Proc-Cache-with-Parameters.aspx) I started modifying some of my code to try it out and ran into a stumbling block. What size would you specific for a varchar(MAX) field?
Since a varchar max field can hold up to 2 billion chracters I really don't think I need to specify 2 billion as the size. Anyone have any ideas?
i know ms sql allows varchar to reach a size of 8000. i've also read that oracle allows for 4000, though i've never used it and not sure about that. so my question is what is the sql standard for a varchar size?
View 6 Replies View RelatedDearfriends,
please guide me,
i've a column with varchar(100).
presently, i need that column as varchar(500).
thank you very much.
Vinod