Editing Database schema (section)

==References==
{{reflist|refs=
<ref name="source1">{{cite journal |last=Rybinski |first=H. |year=1987|title=On First-Order-Logic Databases |journal=ACM Transactions on Database Systems |volume=12 |issue=3 |pages=325–349 |doi= 10.1145/27629.27630|s2cid=2439329 |doi-access=free }}</ref>
<ref name="source2">{{cite book |last1= Pottinger |first1=P. |last2=Berstein |first2=P. |title=Proceedings of the 11th international conference on Extending database technology: Advances in database technology |chapter=Schema merging and mapping creation for relational sources |year=2008 |publisher=ACM |location= New York, NY |pages=73–84 |doi= 10.1145/1353343.1353357|isbn=9781595939265 |citeseerx=10.1.1.405.2990 |s2cid=15742995 }}</ref>
<ref name="source3">{{cite book |last1= Imielinski |first1=T. | author-link= Tomasz Imieliński | last2=Lipski |first2=W. |title=Proceedings of the 1982 ACM SIGMOD international conference on Management of data - SIGMOD '82 |chapter=A systematic approach to relational database theory |year=1982 |publisher=ACM |location= New York, NY |pages=8–14 |doi= 10.1145/582353.582356|isbn=978-0897910736 |s2cid=2034345 }}</ref>
}}