Interface wise, i would not be terribly worried about this. I mean, the DBM modules have been tieing hashes to "databases" all along. I can see feeling un-easy tho.

My major concern would be speed as compared to SQL. If each UPDATE, SELECT, INSERT or DELETE is a single statement handle, there could be some major amounts of waste. If, there is a single statement handle, it maybe a bit better. I see no fundumental problem with <code lang="perl">Tie</code>'ing, but i would suggest testing some of the following under Benchmark

• hash slices , do they work ? (if you tie,you make the next deveoper not need to understand it is a database)
• speed of insert versus SQL insert
• use of key with mis-matched datatype (does it die ? can you supply a handler ?)

these are just a few, but , i have never used the module, and all of these maybe coverd by a quick look through the perldoc, or some quick code trolling. I find i ask better (read as simpler) questions when i have yet to look at the code.

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i had a memory leak once, and it ruined my favorite shirt.

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