On the Windows command line, you can perform a recursive search for files using the "for" and call "svn delete" for each corresponding file,
C:\> for /r %i in (abc*def.sql) do svn delete %i
NB: remember that in the batch file you will need to replace% i with %% i.
To find out about all the other flags that you can use with "for" (this is a Swiss army knife for searching and parsing), use the help command,
C:\> help for
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