Sql attach database

Attach a database

1. In SQL Server Management Studio Object Explorer, connect to an instance of SQL Server Database Engine, and then select to expand that instance view in SSMS.
2. Right-click Databases and select Attach.
3. In the Attach Databases dialog box, to specify the database to be attached, select Add.

1. What does it mean to attach a database?
2. Can I connect two database in SQL?
3. What is Attach database in SQL Server?
4. How can we attach database with same name?
5. Can I attach MDF without LDF?
6. What is the difference between attach and restore database in SQL Server?
7. What is the difference between detach and take offline?
8. What is attach detach?
9. How do I connect to multiple databases in SQL?
10. Can I join two tables from different databases?

What does it mean to attach a database?

Generally, detaching and attaching a SQL Server database is used to move database files in the file system or between servers. ... One option to improve the time needed for the database detach \ attach would be to shrink the files, if they have a significant amount of free space.

Can I connect two database in SQL?

SQL Server: Joining Tables from Different Databases on the Same Server. ... Joining these two tables in a select query is very simple. The select query will be similar to the one we normally use to select data from multiple tables in the same database.

What is Attach database in SQL Server?

The data and transaction log files of a database can be detached and then reattached to the same or another instance of SQL Server. Detaching and attaching a database is useful if you want to change the database to a different instance of SQL Server on the same computer or to move the database.

How can we attach database with same name?

First, copy your mdf and ldf files to something new (name them relative to a new database you'll attach them as). Then in the Attach Databases screen: Enter a new name for a (nonexisting) database in the Attach As field in the top frame.

Can I attach MDF without LDF?

Need to Attach MDF file Without LDF File

You cannot take the log backup, if there is a corruption in your LDF file. In this situation you can attach your MDF file without LDF file and recreate your LDF file. This can also resolve your problem if your log files are deleted intentionally or unintentionally.

What is the difference between attach and restore database in SQL Server?

Detach/Attach: This will be detaching database from the source server and then, one can attach or copy MDF and LDF files in the targeted server. Backup/Restore: With help of this operation, take backup of the source SQL server database and restore it in the targeted server.

What is the difference between detach and take offline?

Detaching removes the registration of the database within SQL server. You will need to tell SQL server where the database file(s) are located when you go to make it operational again. Taking a database offline leaves the registration intact, so all you need to do is set it online to make it operational again.

What is attach detach?

As verbs the difference between detach and attach

is that detach is to take apart from; to take off while attach is (obsolete|legal) to arrest, seize.

How do I connect to multiple databases in SQL?

1. Create a linked server in DB invironment, then create a SP to take care of it. 2. Get two DataSets for them, then merge two datatables into one based on usersID.

Can I join two tables from different databases?

2 Answers. SQL Server allows you to join tables from different databases as long as those databases are on the same server. The join syntax is the same; the only difference is that you must fully specify table names.