SQL Data Compare - 9.0
Deploying a database from source control
This topic provides a simple example of using the SQL Compare and SQL Data Compare command line interfaces to deploy a database from source control.
In this example, changes have been made to the schema and data of the database WidgetDev. These changes must be deployed to the testing database WidgetTest.
The latest version of WidgetDev is maintained in source control as the scripts folder WidgetScripts.
The changes are deployed by using SQL Compare and then SQL Data Compare to synchronize WidgetTest (the target) with WidgetScripts (the source).
For more information, see
Before we can deploy, we must get the latest version of WidgetScripts from source control. In this example, the latest version is updated to the working folder C:\Scripts\WidgetScripts
We will deploy all changes to the database schema, and changes to only the static data. The transactional data in the table WidgetPurchases will not be modified.
Note that:
- Scripts folders and the command line interface are only available with the SQL Compare and SQL Data Compare Professional Editions.
- Schema synchronization must therefore be performed first, as data synchronization may fail if the schemas are not identical.
Deploying the schema
To deploy the schema and save a basic report of the process, at the command prompt type:
sqlcompare /scr1:"C:\Scripts\WidgetScripts" /db2:WidgetTest
/o:Default
/sync /v > "C:\SchemaDeploy.txt"
To create a more readable report of the schema differences and save a copy of the synchronization script used to deploy the changes type:
sqlcompare /scr1:"C:\Scripts\WidgetScripts" /db2:WidgetTest
/o:Default
/Report:"C:\SchemaDiffReport.html"
/ReportType:Interactive
/ScriptFile:"C:\SchemaSyncScript.sql"
/sync
Where:
- /scr1:"C:\Scripts\WidgetScripts" specifies WidgetScripts as the source
- /db2:WidgetTest specifies WidgetTest as the target
- /o:Default specifies that the default SQL Compare options will be used for comparison and synchronization
- /sync synchronizes the data sources, making WidgetTest the same as WidgetScripts
- /v > "C:\SchemaDeploy.txt" directs detailed command line output to a file
- /Report generates a report of the schema differences and writes it to the specified file
- /ReportType specifies the format of the report
- /ScriptFile saves a copy of the SQL script used to migrate the changes
Deploying the data
To deploy the data and create a basic report, at the command prompt type:
/sqldatacompare /scr1:"C:\Scripts\WidgetScripts" /db2:WidgetTest
/o:Default
/Exclude:table:WidgetPurchases
/sync /v > C:\DataDeploy.txt
To save a copy of the synchronization script used to deploy the changes type:
sqldatacompare /scr1:"C:\Scripts\WidgetScripts" /db2:WidgetTest
/o:Default
/Exclude:table:WidgetPurchases
/ScriptFile:"C:\DataSyncScript.sql"
/sync /v > C:\DataDeploy.txt
Where:
- /scr1:"C:\Scripts\WidgetScripts" specifies WidgetScripts as the source
- /db2:WidgetTest specifies WidgetTest as the target
- /o:Default specifies that the default SQL Data Compare options will be used for comparison and synchronization
- /sync synchronizes the data sources, making WidgetTest the same as WidgetScripts
- /v > "C:\DataDeploy.txt" directs detailed command line output to a file
- /exclude:table:WidgetPurchases excludes WidgetPurchases. All other tables will be deployed.
- /ScriptFile saves a copy of the SQL script used to migrate the changes
Automating the process
To automate the deployment, save the command line as a .bat file:
cd "C:\Program Files\Red Gate\SQL Compare 8"
sqlcompare /scr1:"C:\Scripts\WidgetScripts" /db2:WidgetTest
/o:Default
/Report:"C:\SchemaDiffReport.html"
/ReportType:Interactive
/ScriptFile:"C:\SchemaSyncScript.sql"
/sync
cd "C:\Program Files\Red Gate\SQL Data Compare 8"
sqldatacompare /scr1:"C:\Scripts\WidgetScripts" /db2:WidgetTest
/o:Default
/Exclude:table:WidgetPurchases
/ScriptFile:"C:\DataSyncScript.sql"
/sync /v > C:\DataDeploy.txt
You can then schedule deployment using the Microsoft® Windows® Scheduled Task wizard.
Additionally, you can automatically update the scripts in source control with the changes from the development database by using the development database as the source for the synchronization (/db1:WidgetDev) and a scripts folder as the target (/scr2:WidgetScripts).
See also |
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