How can I corrupt a table in SQL Server?

I have to write a program that detects corrupted tables and tries to repair them. For this I need to corrupt tables regularly.

Is there anyway to corrupt tables manually?

Paul Randal has several Sample corrupt databases to play with:

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DemoDataPurity - 192-MB SQL Server 2005 database with a single 2570 (data purity) error

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DemoFatalCorruption1 - 1-MB SQL Server 2005 database with a corrupt system table (that allows CHECKDB to complete)

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DemoFatalCorruption2 - 1-MB SQL Server 2005 database with a corrupt system table (that terminates CHECKDB)

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DemoNCIndex - 192-MB SQL Server 2005 database with a bunch of nonclustered index corruptions

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DemoRestoreOrRepair - 1-MB SQL Server 2005 database with a page checksum failure (in fact a zero'd out page)

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DemoCorruptMetadata - 1-MB SQL Server 2000 database with corrupt syscolumns table

Also, How to create a corrupt database using BULK INSERT/ UPDATE and BCP - SQL Server as a HEX editor.

StackExchange Database Administrators Q#11198, answer score: 4