How do I programatically change a column (say username) in a table (say tblusers) from varchar(25) to varchar(100)
I am looking for something like
alter tblusers set username as varchar(100)
I know the above statement in nonsensical but it conveys the idea.
I have a table say Friend which has a column "IsSingle VARCHAR(10)" and this column has values like yes or No
Now I want to change type of column IsSingle from VARCHAR to BIT, if I try to do it manaually SQL throws error that cannot convert yes to bit etc.
I know that we can write a script to do this task but i dont know how ?
Any pointers,links, suggestions will help me to start with.
Thanks for your help.
Hi All,
I am using SQL Server 2000 Enterprise Edition fully patched. Database is in Simple Recovery mode.
I need to change a column's data type from "int(4)" to "smallint(2)". I know for sure that there will be no data (precision) lost, because I know the possible values that this column could have.
My problem is that the table I am dealing with has 600,000,000 records in it. I dropped all indexes before I tried to alter the table. But still it is taking forever and filling up my 280GB disk with transaction log file.
I know that in Oracle, if I want I can turn off logging and do these kind of modifications relatively faster.
I was wondering if there is a way of disabling logging before running this alter command.
What is the best practice to handle a situation of this sort?
I appreciate your help.
Thanks in advance,
Sinan Topuz
I need to update a large table, about 55 million rows, without filling the transaction log, in the shortest time as possible. The goal is to alter the table and change the data type for Text column from VARCHAR(7900) to NVARCHAR(MAX).
Since I cannot do it with an ALTER TABLE statement (it would fill up the transaction log) I'm thinking to:
- rename column Text in Text_OLD
- add Text column of type NVARCHAR(MAX)
- copy values in batches from Text_OLD to Text
The table is defined like:
create table DATATEXT(
rID INTEGER NOT NULL,
sID INTEGER NOT NULL,
pID INTEGER NOT NULL,
cID INTEGER NOT NULL,
err TINYINT NOT NULL,
[Code] ....
I've thought about a stored procedure doing this but how to copy values in batch from Text_OLD to Text.
The code I would start with (doing just this part) is the following, but maybe there are more efficient ways to do it, or at least there's a better way to select @startSeq in the WHILE loop (avoiding to select a bunch of 100000 sequences and later selecting the max).
declare @startSeq timestamp
declare @lastSeq timestamp
select @lastSeq = MAX(sequence) from [DATATEXT] where [Text] is null
select @startSeq = MIN(Sequence) FROM [DATATEXT] where [Text]is null
BEGIN TRANSACTION T1
WHILE @startSeq < @lastSeq
[Code] ....
I am developing several charts with column type and sub type as stacked. There is a requirement from the users that they want an option to choose the type of chart.
Is it possible to change chart type dynamically from say Column type to Line type based on user option in front-end?
Any help will be appreciated.
Thanks in advance !!
Would anyone happen to have any pointers or know of any good code examples to either programmatically change the type of an input column when it is passed through the component, or add a new column to the output? I am extracting data from an Oracle database which is in Julian date format (represented within SSIS as a DT_NUMERIC column) and I need to to either transform the input column holding it into a date column, or to dynamically add a new output column holding the transformed data.
Many thanks
I am trying to use the Bulk Insert Task to load from a csv file. My final column is a bit that is nullable. My file is an ID column that is int, a date column that is mm/dd/yyy, then 20 columns that are real, and a final column that is bit. I've tried various combinations of codepage and datafiletype on my task component. When I have RAW with Char, I get the error included below. If I change to RAW/Native or codepage 1252, I don't have an issue with the bit; however, errors start generating on the ID and date columns.
I have tried various data type settings on my flat file connection, too. I have tried DT_BOOL and the integer datatypes. Nothing seems to work.
I hope someone can help me work through this.
Thanks in advance,
SK
SSIS package "Package3.dtsx" starting.
Error: 0xC002F304 at Bulk Insert Task, Bulk Insert Task: An error occurred with the following error message: "Cannot fetch a row from OLE DB provider "BULK" for linked server "(null)".The OLE DB provider "BULK" for linked server "(null)" reported an error. The provider did not give any information about the error.The bulk load failed. The column is too long in the data file for row 1, column 24. Verify that the field terminator and row terminator are specified correctly.Bulk load data conversion error (type mismatch or invalid character for the specified codepage) for row 1, column 23 (cancelled).".
Error: 0xC002F304 at Bulk Insert Task 1, Bulk Insert Task: An error occurred with the following error message: "Cannot fetch a row from OLE DB provider "BULK" for linked server "(null)".The OLE DB provider "BULK" for linked server "(null)" reported an error. The provider did not give any information about the error.The bulk load failed. The column is too long in the data file for row 1, column 24. Verify that the field terminator and row terminator are specified correctly.Bulk load data conversion error (type mismatch or invalid character for the specified codepage) for row 1, column 23 (cancelled).".
Task failed: Bulk Insert Task 1
Task failed: Bulk Insert Task
Warning: 0x80019002 at Package3: The Execution method succeeded, but the number of errors raised (2) reached the maximum allowed (1); resulting in failure. This occurs when the number of errors reaches the number specified in MaximumErrorCount. Change the MaximumErrorCount or fix the errors.
SSIS package "Package3.dtsx" finished: Failure.
I'm trying to compare 2 field in 2 different databases and one is varchar and one is numeric. Is there anyway I can tell SQL to treat the one thats numeric as varchar or convert numeric to varchar for the comparison string... I'm trying to run the following in query anaylzer:update crcwebauth.dbo.deviationmaster set ldate = (select max(qvdate) from crcbrio.dbo.invoice_tbl where dnumber = qvqote)It gives me error:Server: Msg 8114, Level 16, State 5, Line 1Error converting data type varchar to numeric.The DNumber field is numeric and the qvqote is a char field...
View 1 Replies View RelatedI received a db2 data file that I converted to MS-Access. From Access Iran the upsize wizard to put the tabel in SQL. It put the table in okbut all the data types are nvarchar. I have a couple of the fields thatare cureny and some that are numeric.I need to change the data types from nvarchar to numeric type fields. Iam new to SQL so I do not know all the commands. How do I change thedata type?Michael Charney*** Sent via Developersdex http://www.developersdex.com ***
View 1 Replies View RelatedI'm doing a data conversion project, moving data from one SQL app toanother.I'm using INSERT INTO with Select and have the syntax correct. But whenexecuting the script I get:Server: Msg 8114, Level 16, State 5, Line 1Error converting data type varchar to float.Is it possible to change the data type during the INSERT INTO statement?Thanks
View 3 Replies View RelatedI've created a SQL View in SQL 2000 using a table that has columnsdefined as Numeric data type. In the view, I am grouping and summing.When I link the view via ODBC to Access, all of the data types arechanged to text. If I link the original table which the views arecreated from to Access, the data types are correct. So this problemobviously happens when I change the view to Group. Is there a wayaround this? I want the data types to be correct in Access when Ilink to the views.thanks,jim
View 1 Replies View Related
Is there anyway to change the data type of a variable while in an expression?
My problem is I am trying to compare a variable w/ a string data type to a variable w/ an object data type. I would change the data type of the variable from object to string but if I do that my sql task fails when it tries to write a value to that variable. The variable w/ the object data type is the result of an openquery sql stmnt. So I guess there are two ways around my problem.
1. Change data type of variable while in an expression..ie flow constriant
or
2. Change data type of vraiable from object to string and still get the openquery result to work.
Any help???
Thanks !!
Hi.
I have tables (they are empty and there are no constraints) with columns typed as varchar. In a database I want to change the type of all the varchar columns in all the tables from varchar to nvarchar. What's the best way to do it? Can you suggest code?
I know that to get all the relevant columns I would issue a query like this
select *
from information_schema.columns
where data_type = 'varchar'
Then I would use a cursor... And that's exactly what I would not like to do. Is there any other way?
Thanx.
Darek
Hi everyone,
I’ve got a small question: Is it possible to change the Column_Name – Data Type from a SQL table with a query?
I want to do this with a query.
The Data Type ‘ntext’ must be changed to ‘text’
Thanks in advance!
Hello,
I have a SQL update statement that updates some user names, however, the user names exceed the length of the data type. Currently, for the column username the data type is set to nvarchar (8).
How can I change that to nvarchar(10) in a SQL Update statement?
Thanks in advance.
Ilve install sql server 2012 in my pc and i want to change datetime default format. How can i do this and please i dont want to take the result from select convert() or select cast or something like this. I ve want to take the format i want writing query select datecolumn from table.Â
Now the format i have is:Â 2015-11-16 09:04:00.000
And i want this format: 16.11.2015 09:04:00
Is any way to convert automaticaly by select only column? or can i change at all once? or must write function to when i select the column can change automatic ? or another thing, i ve see in column properties something like formula. In computed column specification in formula i wrote this:Â
((CONVERT([varchar](10),getdate(),(104))+' ')+CONVERT([varchar](10),getdate(),(108)))
And I take the format i want automaticaly but i get the current date for all rows and i cant edit or insert that column anymore. So, how to change the format of date time but no from select query.
I want change all field in database to new datatype.I want change data from Small Integer to Integer but there are the relation in each table.
View 3 Replies View RelatedHi
I am new to Sql server and had just finished the MErge Replication setup on one of the PRoduction server. Today I got the request to change one of the Datatype of one the Published Article. Please help as what are the correct step to make it happen. Is there any production downtime required and if yes , then how much.
Thanks in Advance
Sanjay
Hi
I have Try to Create Stored Procedure in C# with the following structure
[Microsoft.SqlServer.Server.SqlProcedure]
public static void sp_AddImage(Guid ImageID, string ImageFileName, byte[] Image)
{
}
But when I try to deploy that SP to SQL Server Express , The SP Parameters become in the following Stature
@ImageID uniqueidentifier
@ImageFileName nvarchar(4000)
@Image varbinary(8000)
But I don€™t want that Data types .. I want it to be in the following format
@ImageID uniqueidentifier
@ImageFileName nText
@Image Image
How Can I Control the data type for each parameter ??
Or
How Can I Change the data type of the parameter for the Deployed Stored Procedure ??
Or
How Can I defined the new Data type ??
Or
What's the solution to this problem ??
Note : I get Error when I try to use Alert Statement to change the parameter Data type for the SP
ALTER PROCEDURE [dbo].[sp_AddImage]
@ImageID [uniqueidentifier],
@ImageFileName nText,
@Image Image
WITH EXECUTE AS CALLER
AS
EXTERNAL NAME [DatabaseAndImages].[StoredProcedures].[sp_AddImage]
GO
And thanks with my best regarding
Fraas
Is there a way to change an image data type? I want to make a change to some deployed SQL 2008 SSIS deployed packages. I have a TSQL SELECT that searches the packages for a string. But I would like to be able to change a string. I have googled it but cannot find anything.
View 5 Replies View RelatedI am using a stored procedure which returns a value of charecter datatype 'V' to the calling program.I am getting an sql exception System.Data.SqlClient.SqlException: Syntax error converting the varchar value 'V' to a column of data type inti didnot define any int datatype in my tablethis is my codeSqlCommand com = new SqlCommand("StoredProcedure4", connection);com.CommandType = CommandType.StoredProcedure; SqlParameter p1 = com.Parameters.Add("@uname", SqlDbType.NVarChar);SqlParameter p2 = com.Parameters.Add("@opwd", SqlDbType.NVarChar);SqlParameter p3 = com.Parameters.Add("@role", SqlDbType.NVarChar);p3.Direction = ParameterDirection.ReturnValue;p1.Value = username.Text.Trim();p2.Value = password.Text.Trim();com.ExecuteReader();lblerror2.Text = (string)(com.Parameters["@role"].Value); can your figure out what is the error ? Is it a coding error or error of the databse
View 3 Replies View Relatedhi
I have a table like this
Username
Clicks
Impressions
Download
User1
12
23
43
User2
34
33
59
User3
39
88
77
User4
34
43
43
need to change the table like this
User1
User2
User3
User4
clicks
12
42
43
43
Impressions
43
43
43
43
download
43
43
43
43
Thanks
Ezhil
Hello, I would like to get the columns in a table, this works fine:SELECT syscolumns.* FROM sysobjects INNER JOIN syscolumns ON sysobjects.id = syscolumns.id WHERE sysobjects.name = 'Customers'ORDER BY syscolumns.colidHowever, is there a way to get Column_Data_Type as for example "nchar" or "varchar" instead of having it as numbers.Can anybody help ?thanks
View 7 Replies View RelatedThis is an easy one , I need to know the way to check programatically for an SQL server 2000 column data type , if the result is a code , which codes are for the diferent datatypes ( varchar , text , smallint , etc ) , if you send me an url is ok.
thank you
Hi,
I'm trying to figure out the best way to determine the data_type of a column, given the table name and column name. Once I've determined it's a charactor string I can get the length using COL_LENGTH, but I can't fund a command or procedure that will return the data type.
Thank you.
I would like to change column data in all tables in a single database at once.
For instance, i have many tables in a database, and about 30% of the tables has the column "orderplace".
And all the data in orderplace (every tables in the database) are "houston". instead of going to each table and
"update table set orderplace = 'dallas' " .... is there anyway that i could run a sql statement and it will update all the tables in database that has the orderplace column to "orderplace = 'dallas' " ?
any ideas ? thanks.
How to modify/change data that is in a SQL table column. Here is what I need or have
I have 2 tables, Table 1 and Table 2, within those 2 tables there is 1 Column that has the same column heading aswell as data within,(I will call it the serial_number column) there is also a 2nd column that is labeled the Same in both tables, I would like to be able to update the Values in the 2nd column of table 1 with the values from table 2 column 3, using the Serial_number column as my matching reference between the 2, the data is not in the same order between the 2 Tables,
More or less I need to set the value of table 1/column 2 to match table 2/column 3, where the serial_numbers are the same in both tables serial_number columns, the data being changed is set as Small int...
HELLO
i have an sql server database, with a table an some columns.
how can i get the data type of each column and the lengh define in the database table?
I want to change a column's data type from bit to int. There are data in the table already. I'm wondering if it is save/correct way to issue the following command to change the data type for that column.ALTER TABLE database_tableALTER COLUMN my_bit_column INT; Thanks.
View 1 Replies View RelatedWhat is the way to rename a column in a table along with its datatype.
Thanks
I have xml string that needs to be stored in a field in the DB. I was looking for recommendations for the data type I can use in such a scenario.
View 1 Replies View RelatedI have two tables:
dtr
dataid........Subtype
data
docid....mimetype
I need to change the value of column mimetype in table data, but only for these entries which have the value 144 in column "Subtype" in table dtr.
Here is my sql:
with cte as (
select
DataID,
SubType,
MimeType
from dtr A1, data A2
where A1.dataid=A2.Docid And A1.Subtype='144'
AND
A2.mimetype='application/news-message-id'
)
update cte set MimeType = 'application/x-outlook-msg'
I've tested it and it works. Do you see any problems with this SQL?
As updates are risky I'll do a database backup. Is it possible to get all changed entries so that I can track my update, because I don't have a report about the changes? Maybe that everythin is transferred to an output file?
I want to change duplicate data in my sql server column.
the data= 'Barack Obama' , what I want
'Barack Obama 23453'
I have the following query:
UPDATE klant SET naamvoornaam=naamvoornaam + CAST(klantnummer AS VARCHAR)
WHERE naamvoornaam NOT IN (
SELECT(naamvoornaam)
FROM klant
GROUP BY naamvoornaam
HAVING ( COUNT(naamvoornaam) = 1 ))
Message from messages:
String or binary data would be truncated.
I think the max length exceeds the length of the destination column. I've tried:
Max(Len(naamvoornaam + CAST(klantnummer AS VARCHAR)))
message from messages:
An aggregate may not appear in the set list of an UPDATE statement.