Fix docstring markup in sage/databases #34161
Description
Part of #34157:
sage/databases/sql_db.py:322:1: RST201 Block quote ends without a blank line; unexpected unindent.
sage/databases/sql_db.py:322:1: RST499 Missing matching underline for section title overline.
sage/databases/findstat.py:490:1: RST201 Block quote ends without a blank line; unexpected unindent.
sage/databases/findstat.py:494:1: RST201 Block quote ends without a blank line; unexpected unindent.
sage/databases/findstat.py:2185:1: RST201 Block quote ends without a blank line; unexpected unindent.
sage/databases/findstat.py:2195:1: RST201 Block quote ends without a blank line; unexpected unindent.
sage/databases/findstat.py:3128:1: RST201 Block quote ends without a blank line; unexpected unindent.
Component: documentation
Author: Frédéric Chapoton
Branch/Commit: e483da9
Reviewer: Matthias Koeppe
Issue created by migration from https://trac.sagemath.org/ticket/34161