DBD::Anydata appears to be for interacting with specified types of files as databases. SthFile just saves a statement handle as a cursor that can be opened at a later time.

DBD::CSV changes NULL values to empty strings. SthFile saves the actual array returned from the statement handle. NULL values are undefs.

DBD::RAM (from the documentation) pulls the entire data structure into memory. SthFile streams it.

DBD::Mock just makes the a database handle that 'looks like' it worked.

DBD::Sponge makes a handle out of perl data that is already in memory. SthFile's streams data into memory.

DBD::Sprite appears to require you to create a table with definitions before saving stuff to the file. SthFile just streams a statement handle to disk, and then reads it from disk.

A future modification will probably involve allowing an open handle of any type to be the output or input of SthFile.

I already know something like this would be useful to me. One of the things I'm wondering is if I should make it as an extension for other dbd drivers that automatically save a statement handles meta data.

In reply to Re^2: Save a statement handle to a file and open it again as a 'cursor' or something. by uber_spaced
in thread Save a statement handle to a file and open it again as a 'cursor' or something. by uber_spaced

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