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Unnecessary warnings (calculated columns)
stephen solt
Posts: 2
I am evaluating SQL Compare for the second time in a year. I am disappointed that it still has problems with fairly straightforward situations.
When I go to synchronize, I get the following warnings:
Column [cAddressline] on table [dbo].[tblCompanies] must be added but has no default and does not allow NULL values. The table must be rebuilt. If the table contains data then the migration script will not work. To avoid this, add a default to the column or mark it as allowing NULL values
Cannot alter column [cSector] AS (isnull([fldSuperSector],N'') + N' / ' + isnull([fldSector],N'')) to [cSector] AS (rtrim((isnull([fldSuperSector],N'') + N' \ ' + isnull([fldSector],N'')))) on table [dbo].[tblProjectSectors]. The table must be rebuilt
Cannot alter column [cLocation] AS (isnull(([fldCompany] + N'\'),N'') + isnull([fldDivision],N'')) to [cLocation] AS (rtrim((isnull([fldCompany],N'') + N' \ ' + isnull([fldDivision],N'')))) on table [dbo].[tblProjectSectors]. The table must be rebuilt
You will see that all of these are computed columns. As you know you cannot define a default and/or null for these but SQL Compare recommends this in the first case. Surely SQL Compare shouldn't have a problem with altering/creating any of the examples, whether or not there is existing data?
Stephen Solt
When I go to synchronize, I get the following warnings:
Column [cAddressline] on table [dbo].[tblCompanies] must be added but has no default and does not allow NULL values. The table must be rebuilt. If the table contains data then the migration script will not work. To avoid this, add a default to the column or mark it as allowing NULL values
Cannot alter column [cSector] AS (isnull([fldSuperSector],N'') + N' / ' + isnull([fldSector],N'')) to [cSector] AS (rtrim((isnull([fldSuperSector],N'') + N' \ ' + isnull([fldSector],N'')))) on table [dbo].[tblProjectSectors]. The table must be rebuilt
Cannot alter column [cLocation] AS (isnull(([fldCompany] + N'\'),N'') + isnull([fldDivision],N'')) to [cLocation] AS (rtrim((isnull([fldCompany],N'') + N' \ ' + isnull([fldDivision],N'')))) on table [dbo].[tblProjectSectors]. The table must be rebuilt
You will see that all of these are computed columns. As you know you cannot define a default and/or null for these but SQL Compare recommends this in the first case. Surely SQL Compare shouldn't have a problem with altering/creating any of the examples, whether or not there is existing data?
Stephen Solt
This discussion has been closed.
Comments
This is a long-standing issue with SQL Compare that you need to clean up any NULL data before changing a column from allowing NULL data to not allowing NULL data. SQL Server would also give the same complaint if you tried to change a column from NULL to NOT NULL in Enterprise Manager.
It would be possible for the program to search all null rows and fill them in with something -- but fill them in with what is the dilemma!