Compare and Synchronize Schemas with dbForge Studio for SQL Server
Comparing database schemas is the first step in the database comparison process, and it
can be accomplished with the help of feature-rich dbForge Studio for SQL Server.
You can benefit from the tool's functionality when you need to:
Compare database schema changes from development with test and production
Explore what changed in each database object down to individual lines of SQL
Migrate individual schema differences, a selection of them, or all of them
Review notifications of any issues, such as data loss, before deploying changes
Deploy changes directly to a database without errors or save deployment scripts for later use
Automate comparison and deployments using a command-line interface
Fix errors in a production database, compare it to a database snapshot, scripts in source control, or a backup
Troubleshoot database differences and generate reports in Excel and HTML
Start Comparison Process
With the Schema Comparison wizard, you can compare database schemas, backups, database
snapshots, script folders, and database schemas stored in source control.
In the wizard, you choose source and target, customize the process
by setting up the required options. For further process
automation, your settings can be saved to a file that will be used in the command-line interface.
To prevent any confusion between source and target instances, you may use the
Analyze Schema Comparison Results
When the comparison process is complete, the results stating objects, object status,
and operation are displayed in the grid. Click the necessary object to get a
detailed view of it in the text comparer below.
To save results for further analysis or distribute them,
you can generate a comparison report in HTML, Excel, or XML format.
Work with Schema Comparison Document
The Schema Comparison document is a file with a .scomp extension that contains schema comparison results.
You can manage the results in different ways and save the document for future use. For instance, you can
later load command-line settings using the comparison .scomp project file.
The Comparison Document allows you to:
Apply filters, sort, and group objects in the result.
Exclude and include objects to continue working with them.
View DDL differences for each object pair.
Preview the schema update script for each object.
Apply Object Filter
The Object Filter feature enables you to:
Filter objects right in the Comparison Document.
Modify the existing filters and create new custom filters.
Apply multiple filters simultaneously.
Save customized filters for further comparisons across multiple projects.
Use the filter from the command line.
Generate Comparison Report
A handy wizard allows you to create and export the results of the comparison in the form of a report.
The comparison report contains essential information, including Source and Target details as well as the summary of the
schema comparison in a convenient form of the list. The report is easily customizable, and you can exclude
and include objects, add warnings, and append timestamps to the report file.
You can choose from three file formats to create a report that suits your needs best:
HTML - a Hypertext Markup Language file format is suitable for
publishing the report on the web. HTML extension also allows presenting script differences in a report as:
Crossed out words
Excel - one of the most popular spreadsheet file formats.
XML - an extensible markup language file format used to share the data on the World Wide Web.
Compare Source Control Versions
The schema comparison feature within dbForge Studio for SQL Server allows comparing and synchronizing
source control versions of your database. The tool enables you to define a source control version
either as a target or as a source as well as to create a new SQL source control version.
All you need to do is to specify the necessary database version and select from a list of source
control systems, such as Team Foundation Server (TFS), Subversion (SVN), SourceGear Vault, Git, Perforce,
Mercurial, and others the one you are working with.
Synchronize SQL Server Schemas
As soon as you have selected the objects you need to synchronize, just call the Synchronization
In the wizard, you can customize the process by setting output and
synchronization options. After synchronization, you get a comprehensive
script to apply updates and changes to your databases.
Create Deployment Script
Using the Schema Synchronization Wizard, you can generate an update script to synchronize your
database schemas. You will be able to:
View, edit and save the deployment script.
Select a database backup, snapshot, or script folder either as source or target.
Migrate any schema differences (individual, select, or all).
Include dependent objects into the synchronization.
Customize the synchronization options to your needs and save them as your defaults for future use.
Resolve any synchronization issues automatically.
View the list of warnings before the synchronization.
Set up Continuous Integration
The Schema Comparison feature is an integral part of the
Continuous Integration (CI) process as it greatly facilitates database development and deployment.
Depending on the chosen database development model, you can apply it in either a
state-based or a migration-based approach. Use the schema comparison feature to:
Deploy a database from a script folder on a SQL Server instance.
Alter a database schema and manage the differences.
Update the script folder to introduce the necessary changes to the schema.
Perform error-free schema synchronization using generated SQL scripts
Automate database synchronizations via command line.
Automate Comparison and Synchronization
The command-line interface allows scheduling comparison and synchronization
without actually participating in the process. The options saved from the wizard can
be used for customization. Make use of the following automation capabilities:
Save comparison project settings for future use.
Apply the tool's integrated script generation feature to obtain a PowerShell automation script as a .bat file.
Schedule the script execution via the Windows Scheduler to automate the schema comparison process.
Schema Comparison feature, together with other functional capabilities of
dbForge Studio for SQL Server,
makes your database development and deployment seamless and stable. It empowers you to quickly
introduce changes to your database schema, deliver updates, and ensure the process is completely
error-free. The automation of synchronizations allows you to set up a reliable schedule that
never fails to work by itself.
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