Submitted on: 27 August 2017.
Revised on: 27 September 2017.
Accepted on: 22 October 2017.
SIGMOD RECORD
http://reply.papertrans.cn/3/280/27959/27959-12.png
Submitted on: 29 June 2000.
Revised on: 30 July 2000.
Accepted on: 23 August 2000.
SIGMOD RECORD
Submitted on: 05 April 2019.
Revised on: 12 May 2019.
Accepted on: 27 May 2019.
SIGMOD RECORD
Submitted on: 08 June 1998.
Revised on: 10 July 1998.
Accepted on: 16 July 1998.
SIGMOD RECORD---ASSOC COMPUTING MACHINERY
http://reply.papertrans.cn/3/280/27959/27959-16.png
http://reply.papertrans.cn/3/280/27959/27959-17.png
http://reply.papertrans.cn/3/280/27959/27959-18.png
http://reply.papertrans.cn/3/280/27959/27959-19.png
Submitted on: 17 August 2017.
Revised on: 26 September 2017.
Accepted on: 15 October 2017.
SIGMOD RECORD---ASSOC COMPUTING MACHINERY