Convert an existing column to md5

[n8w]

What is the best way to convert a non-encrypted column in a database? to and encrypted column using md5?

 

Thanks!

[BloodyMind]

select go through the loop, md5 string u want inside the loop then update

[PFMaBiSmAd]

There is no need to loop or write any code in order to update all the columns in a table. A single UPDATE query, that can be executed through your favorite database management utility, with no WHERE clause will update all the rows in the table to set the (new or existing) column to any value you want.

[BloodyMind]

I assume he has initial values that needed to be encrypted..

[PFMaBiSmAd]

 

 

UPDATE your_table SET your_existing_or_new_column_name = md5(your_existing_column_name)

 

Edit: And since you should be SALTING your value to help prevent database lookups of common md5 values -

 

UPDATE your_table SET your_existing_or_new_column_name = md5(CONCAT(your_existing_column_name,'some random string that you will use when you test values as well'))

[n8w]

wow .. that is awesome .. thanks!

[BloodyMind]

brilliant! thanks for the info PFMaBiSmAd