You can copy data and log files of a READ ONLY database while the database is online.You can create additional indexes to optimize data retrieval without worrying about degradation of data modifications and index maintenance.As there would be no data modifications in a READ ONLY state, SQL Server would not have to bother with locks.
#COPYTRANS MANAGER READ ONLY MODE FULL#
A full backup of READ WRITE database over a READ ONLY database would make the target database READ WRITE, so you would need to change the state of the database again.Recovered databases may be changed to READ WRITE mode later. A full backup of READ ONLY database would be recovered as a READ ONLY database.Consider using simple recovery mode along with only full backups. However considering the READ ONLY state you may want to have a different backup plan than that of a READ WRITE database. You can create any type of backup (full, differential, log) of a database in READ only state.There are couple of important points that should be kept in view while working with backups of READ ONLY databases. Working with backups of READ ONLY databases A value of 1 corresponds to READ ONLY state Script 3: Verify that DB is READ ONLY or not The following script would set AdventureWorks to READ ONLY state Using ALTER DATABASE command is recommended as sp_dboption may be excluded from newer versions of SQL Server. This task may be accomplished through the system stored procedure sp_dboption or through and ALTER DATABASE command. After completing tasks in script 1, we are ready to change the status of AdventureWorks to READ ONLY. Setting your database to READ ONLY itself is quite simple, but demands prior considerations and preparation. Modify permissions if required and add/remove users appropriately - Step 8. sys.sp_addextendedproperty made READ ONLY for testing purpose.' Add extended properties for database if requiredĮXEC. Create/rebuild/reorganize indexes where required Set Recovery model to SimpleĪLTER DATABASE AdventureWorks SET RECOVERY SIMPLEĭBCC SHRINKDATABASE (AdventureWorks, TRUNCATEONLY) Assuming that DB has recovery model FULL. Assuming that DB has recovery model FULL and has a prior full backup.īACKUP LOG AdventureWorks TO disk = 'D:\AdventureWorksTLog' Script 1: Prepare database for READ ONLY status If that is not the case then you may skip step 1 and 2 in the following script The script assumes that your database is in the FULL recovery mode and also you have a prior full backup as a base for transactional log backups. You may add or remove certain steps in the script according to your specific requirements. The following script provides an outline to start with. So it is required to complete such tasks before we set the database to READ ONLY mode. Permissions may not be edited and users may not be added or removed from a READ ONLY database.READ ONLY databases will not allow you to add any extended properties on any of its objects.You will not be able to defragment indexes of a READ ONLY database.READ ONLY databases will not shrink automatically or manually.
#COPYTRANS MANAGER READ ONLY MODE UPDATE#
Databases can be set to READ ONLY mode and back using T-SQL and SSMS. In this section we would go through best practices for preparing a database for READ ONLY status. In this tip I go over some best practices before setting a database to READ ONLY. For one of my archival databases, I am looking to make it READ ONLY and would like to know what steps I should take. By: Atif Shehzad | Updated: | Comments (4) | Related: More > DBA Best Practicesĭatabases whose architecture or data is not required to be updated should be considered to be set as READ ONLY databases.
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