In SQL Server, I have a field which is a bit. I need to default it to 0 on insert of a new record. I thought there was a way for SQL Server to automatically create a constraint without writing code. I thought there was a way to right click on the field and go to properties. I tried but do not see how to default a field.
SQL Server Management Studio: Select the table from the tree, context menu, design table, select the field, in the properties grid at the bottom type a zero (0) in the Default row, save.
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I am trying to use the import and export wizard to move a small data set from a CSV file to an existing (empty) table. I did Script Table As > Create To, to get all DML for this table. I know the field type of the two fields which are causing problems is varchar(50). I'm getting this error message:
Error 0xc020902a: Data Flow Task 1: The "Source - Reconciliation_dbo_agg_boc_consolidated_csv.Outputs[Flat File Source Output].Columns["ReportScope"]" failed because truncation occurred, and the truncation row disposition on "Source - Reconciliation_dbo_agg_boc_consolidated_csv.Outputs[Flat File Source Output].Columns["ReportScope"]" specifies failure on truncation. A truncation error occurred on the specified object of the specified component.
(SQL Server Import and Export Wizard)
The max length of all characters is 49, so I'm not sure why SQL Server is complaining about truncation. Is there any way to disable this error check and just force it to work? It should work as-is! Thanks everyone.
Is there any way to disable this error check and just force it to
work? It should work as-is! Thanks everyone.
Yes. If you're using the wizard, you can view the table schema before running it, and check the option to ignore truncation.
The max length of all characters is 49, so I'm not sure why SQL Server
is complaining about truncation.
The default datatype of source column may be Text while using import wizard, so change it to varchar(50) using advanced tab of source. Check this link for more details.
For the safe side can you please check column data type in both Source and Destination. If both are not same just declare all your columns as varchar inside table with some maximum length say for example varchar(max) or varchar(500) and see what would be the result.
Change max length of Varchar column:
ALTER TABLE YourTable ALTER COLUMN YourColumn VARCHAR (500);
Then the column will default to allowing nulls even if it was originally defined as NOT NULL. i.e. omitting the specification in an ALTER TABLE ... ALTER COLUMN is always treated as.
ALTER TABLE YourTable ALTER COLUMN YourColumn VARCHAR (500) NULL;
check column nullable or Not nullable based on requirement just change it.
Use below steps for better understanding How to import a CSV file into a database using SQL Server Management Studio:
While bulk copy and other bulk import options are not available on the SQL servers, you can import a CSV formatted file into your database using SQL Server Management Studio.
First, create a table in your database into which you will import the CSV file. After the table is created:
Log in to your database using SQL Server Management Studio.
Right click the database and select Tasks -> Import Data...
Click the Next > button.
For Data Source, select Flat File Source. Then use the Browse button to select the CSV file. Spend some time configuring the data import before clicking the Next > button.
For Destination, select the correct database provider (e.g. for SQL Server 2012, you can use SQL Server Native Client 11.0). Enter the Server name; check Use SQL Server Authentication, enter the User name, Password, and Database before clicking the Next > button.
In the Select Source Tables and Views window, you can Edit Mappings before clicking the Next > button.
Check Run immediately and click the Next > button.
Click the Finish button to run the package.
I have a 12 years old mdb database and I was asked to add a new column to a table and set to a default value of "1".
My knowledge of asp/mdb is close to zero. I also have no Access or similar softwares.
I tried with:
ALTER TABLE Members ADD COLUMN Privacy Double Default 1
but generates error:
Error: An action query cannot be used as a row source.
Then I tried with:
ALTER TABLE Members MODIFY COLUMN Privacy VARCHAR(4) NOT NULL DEFAULT 'Yes';
but this also triggers another error:
Microsoft JET Database Engine error '80040e14'
How can I set an existing column to a default value?
Should I use an offline tool? If so which one?
Note: I also used an online tool to create the new column but it has no option to set a default value.
So I can either create the new column with the tool and set a default value with SQL, or do the creation of the column with the default value still with SQL.
I solved using AxBase from SourceForge.net.
I could properly open the *.mdb database and run the above SQL commands and they worked perfectly:
ALTER TABLE Members ALTER COLUMN Privacy SET DEFAULT 1
hi your access database is may be in office 2003 or office xp.
You can try to enable sql syntax and then try to run your query.
Tools -> Options -> Tables/Queries -> (At the bottom right:) Sql Server Compatible Syntax - turn option on for this database.
ALTER TABLE Members ADD COLUMN Privacy number Default 1
I just tried inserting value in to a database and that work. Now I insert again and I get an error for identical primary key.
I can't find any option to alter it to be auto-increment.
I'm updating the table via Linq-To-Sql.
User u = new User(email.Text, HttpContext.Current.Request.UserHostAddress,
CalculateMD5Hash(password.Text));
db.Users.InsertOnSubmit(g);
db.SubmitChanges();
I didn't fill in the user_id and it worked fine the first time. It became zero.
Trying to add a second user, it wants to make the ID 0 again.
I could query the database and ask for the highest ID, but that's going to far if you know about auto-increment.
How can I turn this on? All I can find are scripts for table creation. I'd like to keep my existing table and simply edit it.
How is your Linq-to-SQL model defined?? Check the properties of the user_id column - what are they set to??
In your Linq-to-SQL model, be sure to have Auto Generated Value set to true, Auto-Sync set to OnInsert, and the server data type should also match your settings (INT IDENTITY),
In SQL Server Management Studio, you need to define the user_id column to be of type INT IDENTITY - in the visual table designer, you need to set this property here:
It is zero because you have a integer for a primary key column type. To use auto-increment, set tables identity column to the ID (selected in the table properties)
Would probably be easier to edit the database using VS if you have a version that will work for, otherwise if you have to edit it in management studio see this article:
http://blogs.msdn.com/b/sqlexpress/archive/2006/11/22/connecting-to-sql-express-user-instances-in-management-studio.aspx
Or you can increment the user_id manually and pass it to the insert function if you cannot alter the property/table field description
I have a zipcode field in a database that I just took over. Previously, it was set as a numeric field with 18 precision but I am trying to convert it over to varchar(10).
I need to make this change because the linq fields are coming in as decimal and are causing issues and i want to change the linq fields to simply be strings.
I tried this in SQL server enterprise manager but i get this error, saying:
that the table will have to be dropped and recreated. you have either made changes to a table that can't be recreated or enable the option to prevent saving changes that require a table recreation
Any suggestions?
to enable that option in SQL management studio uncheck the following option...
Tools / Options / Designers / Table and Database Designers / Prevent saving changes that require table re-creation
You could also run an alter statement to change your datatype (as long as all of your data will fit in a varchar(10) column).
ALTER TABLE MyTable
ALTER COLUMN MyZipCodeColumn VARCHAR(10)
Are you using MS-SQL 2008? Changes that require the table to rebuilt are blocked by default.
Click Tools->Options, then Designers. Uncheck "Prevent saving changes that require table re-creation".
Then you can change your column using the designer.
Screenshots on how to do it:
http://pragmaticworks.com/community/blogs/brianknight/archive/2008/06/04/sql-server-2008-designer-behavior-change-saving-changes-not-permitted.aspx
I have a SQL database that has a table with a field set to "Read Only" when I look at it through Microsoft SQL Server Management Studio Express.
I need to change some data within that field manually but I can't see any properties that I can change that will let me override this.
Will I need to write a sql script on the table to do this or is there something that I am missing ?
What is the datatype of the field? You may not be able to "type" into it if its of an ntext or image datatype and management studio can't handle the size of it.
In that case you might have no option but to perform an update as follows.
UPDATE TableName SET ColumnName = 'NewValue' WHERE PrimaryKeyId = PrimaryKeyValue
The field is most likely "read-only" because it contains a calculated value.
If that's the case, you would have to change calculation in the table definition to change it's value.
This problem will occur when you set a particular field as Primary Key and you set it into 'Is Identity' is true, that means that field will automatically incremented whenever an insertion is takes placed...So better to check whether it is auto increment or not.. If it is ,then change that property 'Is Idenitity' as false.
In an SQL query I had once, the query I used to generate the table to edit included a join to a table on a "Server Object", specifically a linked server. This marked the cells as read only, even though the table on which I was actually going to change the data wasn't on the linked server.
My resolution: Luckily I was able to adjust the query so I didn't need to do the JOIN with a linked table and then I could edit the cells.
Suggestion: Check your query for linked servers or other odd statements that may lock your table.
Use trigger in order to prevent this column updating:
CREATE TRIGGER UpdateRecord ON my_table
AFTER UPDATE AS UPDATE my_table
SET [CreatedDate] = ((SELECT TOP 1 [CreatedDate] FROM Deleted d where d.[id]=[id]))