set default schema for a sql query

Question

Is there a way to set the schema for a query so that in the rest of the query I can refer to tables just by their name without prepending them with a schema name?

For instance, I would like to do something like this:

Use [schemaName] select * from [tableName] 

as opposed to this:

select * from [schemaName].[tableName] 

Answer 1

A quick google pointed me to this page. It explains that from sql server 2005 onwards you can set the default schema of a user with the ALTER USER statement. Unfortunately, that means that you change it permanently, so if you need to switch between schemas, you would need to set it every time you execute a stored procedure or a batch of statements. Alternatively, you could use the technique described here.

If you are using sql server 2000 or older this page explains that users and schemas are then equivalent. If you don't prepend your table name with a schema\user, sql server will first look at the tables owned by the current user and then the ones owned by the dbo to resolve the table name. It seems that for all other tables you must prepend the schema\user.

Answer 2

I do not believe there is a "per query" way to do this. (You can use the use keyword to specify the database - not the schema - but that's technically a separate query as you have to issue the go command afterward.)

Remember, in SQL server fully qualified table names are in the format:

[database].[schema].[table]

In SQL Server Management Studio you can configure all the defaults you're asking about.

• You can set up the default database on a per-user basis (or in your connection string):

  Security > Logins > (right click) user > Properties > General

• You can set up the default schema on a per-user basis (but I do not believe you can configure it in your connection string, although if you use dbo that is always the default):

  Security > Logins > (right click) user > Properties > User Mapping > Default Schema

In short, if you use dbo for your schema, you'll likely have the least amount of headaches.