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copied!<p>For me, the script in Mikael's link didn't create drops for all extended properties, e.g. those for views. What did work was a script that Jamie Thomson has created, which you can download from this <a href="http://sqlblog.com/blogs/jamie_thomson/archive/2012/03/25/generate-drop-statements-for-all-extended-properties.aspx" rel="noreferrer">article</a>.</p> <p>I've pasted his script here (in full with acknowledgements, in-case the article is removed):</p> <pre><code>/* 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' </code></pre>

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