I have several hundred geodatabase feature classes which all have the exact same fields. I need to go through each of those feature classes and delete any records which match an SQL query (the same SQL query can be applied to all the feature classes). Alternatively, I could export them all to new feature classes, keeping the records I want. In ArcCatalog I can export them singly using an SQL query to specify which records get exported, but the SQL statement option isn't available when you want to export multiple layers simultaneously (using "Feature Class to Geodatabase (multiple)").
One way to automate the processing of this would be with Python by working through a list of the feature classes, and the using an updatecursor/deleteRow statement to delete the unneeded records.
More here on listing featureclasses: http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//000v0000001n000000
and on the updatecursor/deleteRow statement: http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//002z0000001q000000