I sold the internet café in 2010, they renamed it Karma Café and carried on in their own way. The website however continued, partly because I was lazy, partly because it still had many many visitors!
I decided today to migrate it off the old Rackspace hosting to Azure, this should be easy... or so I thought.
The Three C's website is very old-fashioned, a frames site using classic ASP to a little SQL Server Express database (migrated from Access) with a few JavaScript tricks and ASP hacks. Webmatrix let me migrate the site easily enough (whilst not telling me it was ignoring some of the web.config settings!) then came the joy of migrating the database.
As with all proper sites, the database server backs itself up every night (I have a series of very useful SQL Express automated backup scripts.) Normally to migrate servers I would restore one of these scripts to the server, reconnect the users and everything would be good.
Failure #1 - You cant restore a SQL database backup to Azure (bummer)
OK, try connecting from the the server using SQL Management Studio, success! Ah, but half the menu items are missing (mostly around data exporting and backups) and of course the version on my web server is SQL 2008 R2 Express, you need 2012 to get to all the toys.
Failure #2 - You need SQL Server 2012 to use all the toys.
OK, I have SQL 2012 on my local PC, restore the database locally an deploy/export it from there. Easy... Except it wont deploy, SQL Azure must have a clustered index on all tables, well it is more efficient, but it wasn't a requirement with on-prem SQL Server.
Failure #3 - You need clustered indexes on all tables with SQL Azure
This actually took me a while to solve, many solutions presented themselves.
- Exporting the data instead (same clustered index problem)
- Creating the tables with scripts, edited to have clustered indexes
- Create the tables with scripts, modifying the Primary Keys to be clustered in scripting, then export the data with identities switched off
Inevitably I had been a good boy and used proper referential integrity. Yes this complicates the database, no I didn't want to switch it off.
- Fix the database locally (making clustered indexes) then use the SQL 2012 Deployment wizard
- Delete the Access specific fields
It would appear that the combination of upgrading from Access to SQL Server, and then updating whenever a new version came out (in combination to masochistic tendencies) creates many extended properties on a database, in many different places, all of which need deleting :(
I found a query online that would create another set of queries to delete the extended properties:
/* This script will generate calls to sp_dropextendedproperty for every extended property that exists in your database. Actually, a caveat: I don't promise that it will catch each and every extended property that exists, but I'm confident it will catch most of them! It is based on this: http://blog.hongens.nl/2010/02/25/drop-all-extended-properties-in-a-mssql-database/ by Angelo Hongens. Also had lots of help from this: http://www.sqlservercentral.com/articles/Metadata/72609/ by Adam Aspin Adam actually provides a script at that link to do something very similar but when I ran it I got an error: Msg 468, Level 16, State 9, Line 78 Cannot resolve the collation conflict between "Latin1_General_100_CS_AS" and "Latin1_General_CI_AS" in the equal to operation. So I put together this version instead. Use at your own risk. Jamie Thomson 2012-03-25 */ /*Are there any extended properties? Let's take a look*/ select *,OBJECT_NAME(major_id) from sys.extended_properties xp /*Now let's generate sp_dropextendedproperty statements for all of them.*/ --tables set nocount on; select 'EXEC sp_dropextendedproperty @name = '''+xp.name+''' ,@level0type = ''schema'' ,@level0name = ''' + object_schema_name(xp.major_id) + ''' ,@level1type = ''table'' ,@level1name = ''' + object_name(xp.major_id) + '''' from sys.extended_properties xp join sys.tables t on xp.major_id = t.object_id where xp.class_desc = 'OBJECT_OR_COLUMN' and xp.minor_id = 0 union --columns select 'EXEC sp_dropextendedproperty @name = '''+sys.extended_properties.name+''' ,@level0type = ''schema'' ,@level0name = ''' + object_schema_name(extended_properties.major_id) + ''' ,@level1type = ''table'' ,@level1name = ''' + object_name(extended_properties.major_id) + ''' ,@level2type = ''column'' ,@level2name = ''' + columns.name + '''' from sys.extended_properties join sys.columns on columns.object_id = extended_properties.major_id and columns.column_id = extended_properties.minor_id where extended_properties.class_desc = 'OBJECT_OR_COLUMN' and extended_properties.minor_id > 0 union --check constraints select 'EXEC sp_dropextendedproperty @name = '''+xp.name+''' ,@level0type = ''schema'' ,@level0name = ''' + object_schema_name(xp.major_id) + ''' ,@level1type = ''table'' ,@level1name = ''' + object_name(cc.parent_object_id) + ''' ,@level2type = ''constraint'' ,@level2name = ''' + cc.name + '''' from sys.extended_properties xp join sys.check_constraints cc on xp.major_id = cc.object_id union --check constraints select 'EXEC sp_dropextendedproperty @name = '''+xp.name+''' ,@level0type = ''schema'' ,@level0name = ''' + object_schema_name(xp.major_id) + ''' ,@level1type = ''table'' ,@level1name = ''' + object_name(cc.parent_object_id) + ''' ,@level2type = ''constraint'' ,@level2name = ''' + cc.name + '''' from sys.extended_properties xp join sys.default_constraints cc on xp.major_id = cc.object_id union --views select 'EXEC sp_dropextendedproperty @name = '''+xp.name+''' ,@level0type = ''schema'' ,@level0name = ''' + object_schema_name(xp.major_id) + ''' ,@level1type = ''view'' ,@level1name = ''' + object_name(xp.major_id) + '''' from sys.extended_properties xp join sys.views t on xp.major_id = t.object_id where xp.class_desc = 'OBJECT_OR_COLUMN' and xp.minor_id = 0 union --sprocs select 'EXEC sp_dropextendedproperty @name = '''+xp.name+''' ,@level0type = ''schema'' ,@level0name = ''' + object_schema_name(xp.major_id) + ''' ,@level1type = ''procedure'' ,@level1name = ''' + object_name(xp.major_id) + '''' from sys.extended_properties xp join sys.procedures t on xp.major_id = t.object_id where xp.class_desc = 'OBJECT_OR_COLUMN' and xp.minor_id = 0 union --FKs select 'EXEC sp_dropextendedproperty @name = '''+xp.name+''' ,@level0type = ''schema'' ,@level0name = ''' + object_schema_name(xp.major_id) + ''' ,@level1type = ''table'' ,@level1name = ''' + object_name(cc.parent_object_id) + ''' ,@level2type = ''constraint'' ,@level2name = ''' + cc.name + '''' from sys.extended_properties xp join sys.foreign_keys cc on xp.major_id = cc.object_id union --PKs SELECT 'EXEC sys.sp_dropextendedproperty @level0type = N''SCHEMA'', @level0name = [' + SCH.name + '], @level1type = ''TABLE'', @level1name = [' + TBL.name + '] , @level2type = ''CONSTRAINT'', @level2name = [' + SKC.name + '] ,@name = ''' + REPLACE(CAST(SEP.name AS NVARCHAR(300)),'''','''''') + '''' FROM sys.tables TBL INNER JOIN sys.schemas SCH ON TBL.schema_id = SCH.schema_id INNER JOIN sys.extended_properties SEP INNER JOIN sys.key_constraints SKC ON SEP.major_id = SKC.object_id ON TBL.object_id = SKC.parent_object_id WHERE SKC.type_desc = N'PRIMARY_KEY_CONSTRAINT' union --Table triggers SELECT 'EXEC sys.sp_dropextendedproperty @level0type = N''SCHEMA'', @level0name = [' + SCH.name + '], @level1type = ''TABLE'', @level1name = [' + TBL.name + '] , @level2type = ''TRIGGER'', @level2name = [' + TRG.name + '] ,@name = ''' + REPLACE(CAST(SEP.name AS NVARCHAR(300)),'''','''''') + '''' FROM sys.tables TBL INNER JOIN sys.triggers TRG ON TBL.object_id = TRG.parent_id INNER JOIN sys.extended_properties SEP ON TRG.object_id = SEP.major_id INNER JOIN sys.schemas SCH ON TBL.schema_id = SCH.schema_id union --UDF params SELECT 'EXEC sys.sp_dropextendedproperty @level0type = N''SCHEMA'', @level0name = [' + SCH.name + '], @level1type = ''FUNCTION'', @level1name = [' + OBJ.name + '] , @level2type = ''PARAMETER'', @level2name = [' + PRM.name + '] ,@name = ''' + REPLACE(CAST(SEP.name AS NVARCHAR(300)),'''','''''') + '''' FROM sys.extended_properties SEP INNER JOIN sys.objects OBJ ON SEP.major_id = OBJ.object_id INNER JOIN sys.schemas SCH ON OBJ.schema_id = SCH.schema_id INNER JOIN sys.parameters PRM ON SEP.major_id = PRM.object_id AND SEP.minor_id = PRM.parameter_id WHERE SEP.class_desc = N'PARAMETER' AND OBJ.type IN ('FN', 'IF', 'TF') union --sp params SELECT 'EXEC sys.sp_dropextendedproperty @level0type = N''SCHEMA'', @level0name = [' + SCH.name + '], @level1type = ''PROCEDURE'', @level1name = [' + SPR.name + '] , @level2type = ''PARAMETER'', @level2name = [' + PRM.name + '] ,@name = ''' + REPLACE(CAST(SEP.name AS NVARCHAR(300)),'''','''''') + '''' FROM sys.extended_properties SEP INNER JOIN sys.procedures SPR ON SEP.major_id = SPR.object_id INNER JOIN sys.schemas SCH ON SPR.schema_id = SCH.schema_id INNER JOIN sys.parameters PRM ON SEP.major_id = PRM.object_id AND SEP.minor_id = PRM.parameter_id WHERE SEP.class_desc = N'PARAMETER' union --DB SELECT 'EXEC sys.sp_dropextendedproperty @name = ''' + REPLACE(CAST(SEP.name AS NVARCHAR(300)),'''','''''') + '''' FROM sys.extended_properties SEP WHERE class_desc = N'DATABASE' union --schema SELECT 'EXEC sys.sp_dropextendedproperty @level0type = N''SCHEMA'', @level0name = [' + SCH.name + '] ,@name = ''' + REPLACE(CAST(SEP.name AS NVARCHAR(300)),'''','''''') + '''' FROM sys.extended_properties SEP INNER JOIN sys.schemas SCH ON SEP.major_id = SCH.schema_id WHERE SEP.class_desc = N'SCHEMA' union --DATABASE_FILE SELECT 'EXEC sys.sp_dropextendedproperty @level0type = N''FILEGROUP'', @level0name = [' + DSP.name + '], @level1type = ''LOGICAL FILE NAME'', @level1name = ' + DBF.name + ' ,@name = ''' + REPLACE(CAST(SEP.name AS NVARCHAR(300)),'''','''''') + '''' FROM sys.extended_properties SEP INNER JOIN sys.database_files DBF ON SEP.major_id = DBF.file_id INNER JOIN sys.data_spaces DSP ON DBF.data_space_id = DSP.data_space_id WHERE SEP.class_desc = N'DATABASE_FILE' union --filegroup SELECT 'EXEC sys.sp_dropextendedproperty @level0type = N''FILEGROUP'', @level0name = [' + DSP.name + '] ,@name = ''' + REPLACE(CAST(SEP.name AS NVARCHAR(300)),'''','''''') + '''' FROM sys.extended_properties SEP INNER JOIN sys.data_spaces DSP ON SEP.major_id = DSP.data_space_id WHERE DSP.type_desc = 'ROWS_FILEGROUP'
It returns a series of rows that you simply copy and paste into another query window then run, which deletes all the extended properties.
Finally, run the deployment wizard - preferably with your fingers crossed!
It does run, I now have my cocktails database installed on a free instance of SQL Azure, and it is very quick! It was also very painful, I probably would have been better off re-writing from scratch and importing the data as cut and paste for this small data-set. But I've done it now, I've recorded it here and I can now do it again... Right up until Microsoft change their minds on how it works!
