|
用joinby合并后, 数据不是多于就是小于dat1.dta的数据。用merge 1:1_n合并的数据是错的。
code date industry
000002 31 Dec 00 J
000002 31 Dec 01 J
000002 31 Dec 02 J
000002 31 Dec 03 J
000002 31 Dec 04 J
000002 31 Dec 05 J
000002 31 Dec 06 J
000002 31 Dec 07 J
000002 31 Dec 08 J
000004 31 Dec 00 F
000004 31 Dec 01 G
000004 31 Dec 02 G
000004 31 Dec 04 G
000004 31 Dec 05 G
000004 31 Dec 06 G
000004 31 Dec 07 G
000004 31 Dec 08 G
000005 31 Dec 00 M
000005 31 Dec 01 J
000005 31 Dec 02 J
000005 31 Dec 03 J
000005 31 Dec 04 J
000005 31 Dec 05 J
000005 31 Dec 06 J
000005 31 Dec 07 J
000006 31 Dec 00 J
000006 31 Dec 01 J
000006 31 Dec 02 J
000006 31 Dec 04 J
000006 31 Dec 05 J
000006 31 Dec 06 J
000006 31 Dec 07 J
000006 31 Dec 08 J
000007 31 Dec 00 C
000007 31 Dec 01 C
000007 31 Dec 03 J
000007 31 Dec 05 J
000007 31 Dec 06 J
000007 31 Dec 07 J
000007 31 Dec 08 J
000008 31 Dec 00 M
000008 31 Dec 01 M
000008 31 Dec 02 M
000008 31 Dec 03 M
000008 31 Dec 04 M
000008 31 Dec 05 M
000008 31 Dec 08 M
000009 31 Dec 00 M
000009 31 Dec 01 M
000009 31 Dec 02 M
000009 31 Dec 03 M
000009 31 Dec 04 M
000009 31 Dec 05 M
000009 31 Dec 06 M
000009 31 Dec 07 M
000010 31 Dec 00 H
000010 31 Dec 02 C
000010 31 Dec 03 C
000010 31 Dec 05 C
000010 31 Dec 07 C
000010 31 Dec 08 C
000011 31 Dec 00 J
000011 31 Dec 01 J
000011 31 Dec 02 J
000011 31 Dec 03 J
000011 31 Dec 04 J
000011 31 Dec 05 J
000011 31 Dec 07 J
000011 31 Dec 08 J
000012 31 Dec 02 C
000012 31 Dec 03 C
000012 31 Dec 04 C
000012 31 Dec 05 C
000012 31 Dec 06 C
000012 31 Dec 07 C
000012 31 Dec 08 C
000014 31 Dec 01 J
000014 31 Dec 02 J
000014 31 Dec 04 J
000014 31 Dec 06 J
dat2.dta
code date cash inc
000002 31 Dec 00 1.136e+08 J
000002 30 Jun 01 J
000002 31 Dec 01 1.262e+08 J
000002 30 Jun 02 J
000002 31 Dec 02 1.354e+08 J
000002 30 Jun 03 J
000002 31 Dec 03 75787596 J
000002 30 Jun 04 J
000002 31 Dec 04 3.411e+08 J
000002 30 Jun 05 J
000002 31 Dec 05 5.955e+08 J
000002 30 Jun 06 J
000002 31 Dec 06 6.555e+08 J
000002 30 Jun 07 J
000002 31 Dec 07 6.872e+08 J
000002 30 Jun 08 J
000002 31 Dec 08 5.498e+08 J
000002 30 Jun 09 J
000002 31 Dec 09 7.697e+08 J
000002 30 Jun 10 J
000002 31 Dec 10 1.100e+09 J
000004 31 Dec 00 G
000004 30 Jun 01 G
000004 31 Dec 01 4198834 G
000004 31 Dec 01 4198834 G
000004 30 Jun 02 G
000004 31 Dec 02 2519301 G
000004 30 Jun 03 G
000004 31 Dec 03 G
000004 30 Jun 04 G
000004 31 Dec 04 G
000004 30 Jun 05 G
000004 31 Dec 05 G
000004 30 Jun 06 G
000004 31 Dec 06 G
000004 30 Jun 07 G
000004 31 Dec 07 G
000004 30 Jun 08 G
000004 31 Dec 08 G
000004 30 Jun 09 G
000004 31 Dec 09 G
000004 30 Jun 10 G
000005 31 Dec 00 7409599 J
000005 31 Dec 00 7409599 J
000005 30 Jun 01 J
000005 31 Dec 01 J
000005 30 Jun 02 J
000005 31 Dec 02 J
000005 30 Jun 03 J
000005 31 Dec 03 J
000005 30 Jun 04 J
000005 31 Dec 04 J
000005 30 Jun 05 J
000005 31 Dec 05 J
000005 30 Jun 06 J
000005 28 Jul 06 J
000005 31 Dec 06 J
000005 30 Jun 07 J
000005 31 Dec 07 J
000005 30 Jun 08 J
000005 31 Dec 08 J
000005 30 Jun 09 J
000005 31 Dec 09 J
000005 30 Jun 10 J
000006 31 Dec 00 50718326 J
000006 30 Jun 01 J
000006 31 Dec 01 32966912 J
000006 31 Dec 01 32966912 J
000006 30 Jun 02 J
000006 31 Dec 02 20287330 J
000006 30 Jun 03 J
000006 31 Dec 03 J
000006 30 Jun 04 J
000006 31 Dec 04 19019372 J
000006 30 Jun 05 J
000006 31 Dec 05 45646494 J
000006 30 Jun 06 J
000006 31 Dec 06 88757071 J
000006 30 Jun 07 J
000006 31 Dec 07 25359163 J
000006 30 Jun 08 J
000006 31 Dec 08 40574661 J
000006 30 Jun 09 J
000006 31 Dec 09 60861991 J
000006 30 Jun 10 J
000006 31 Dec 10 45646494 J
000007 31 Dec 00 J
000007 30 Jun 01 J
000007 31 Dec 01 J
000007 31 Dec 01 J
000007 30 Jun 02 J
000007 31 Dec 02 J
000007 31 Dec 02 J
000007 30 Jun 03 J
000007 31 Dec 03 J
000007 31 Dec 03 J
000007 30 Jun 04 J
000007 31 Dec 04 J
000007 30 Jun 05 J
000007 31 Dec 05 J
000007 30 Jun 06 J
000007 11 Aug 06 J
000007 31 Dec 06 J
000007 30 Jun 07 J
000007 31 Dec 07 J
000007 30 Jun 08 J
000007 31 Dec 08 J
000007 30 Jun 09 J
000007 31 Dec 09 J
000007 30 Jun 10 J
000008 31 Dec 00 M
000008 31 Dec 00 M
000008 30 Jun 01 M
000008 31 Dec 01 M
000008 30 Jun 02 M
000008 31 Dec 02 M
000008 30 Jun 03 M
000008 31 Dec 03 M
000008 30 Jun 04 M
000008 31 Dec 04 M
000008 30 Jun 05 M
|