SQL Full Join syntax error
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我要的是有不同列和不同行数的表
1 2 3 4 5 6 7 8 9 | +----+----------+--------+------+-------+---------+-------+--------+--------+------+ | ID | Name | SpT | Teff | RAdeg | DEdeg | Dist | n_Dist | pm | Ref | +----+----------+--------+------+-------+---------+-------+--------+--------+------+ | 1 | 0000-345 | DCP8.1 | 6643 | 0.667 | -34.222 | 13.21 | p | 0.7578 | L20 | | 2 | 0008+424 | DA6.8 | 7380 | 2.843 | 42.678 | 22.00 | sp | 0.2328 | L20 | | 3 | 0009+501 | DAH7.6 | 6502 | 3.061 | 50.422 | 11.03 | p | 0.7150 | L20 | | 4 | 0011-134 | DAH8.4 | 5992 | 3.553 | -13.183 | 19.49 | p | 0.8990 | L20 | | 5 | 0011-721 | DA7.8 | 6325 | 3.457 | -71.831 | NULL | sp | 0.3260 | GBD | +----+----------+--------+------+-------+---------+-------+--------+--------+------+ |
还有:
1 2 3 4 5 6 7 8 9 | +----+----------+--------+-------+-------+-------+------+ | ID | Name | SpT | Uvel | Vvel | Wvel | Vtot | +----+----------+--------+-------+-------+-------+------+ | 1 | 0000-345 | DCP9 | -11.9 | -43.7 | 3.2 | 45.4 | | 2 | 0008+424 | DA6.8 | -10.0 | -1.9 | -17.4 | 20.2 | | 3 | 0009+501 | DAH7.7 | -28.1 | 8.6 | -24.1 | 38.0 | | 4 | 0011-134 | DCH8.4 | -75.5 | -31.1 | -9.8 | 82.3 | | 5 | 0011-721 | DA8.0 | 10.3 | -23.2 | 12.2 | 28.2 | +----+----------+--------+-------+-------+-------+------+ |
号
我想合并该表以得到类似这样的结果:两个表的行都是这样的,空列都是空的。
1 2 3 4 5 6 7 8 9 | +------------+-----+------------+---------+---------+-------+--------+--------+-------+--------+--------+--------+-------+---------+ | Name | ID | SpT | RAdeg | DEdeg | Dist | n_Dist | pm | Teff | Uvel | Vvel | Wvel | Vtot | Ref | +------------+-----+------------+---------+---------+-------+--------+--------+-------+--------+--------+--------+-------+---------+ | 0000-345 | 1 | DCP8.1 | 0.667 | -34.222 | 13.21 | p | 0.7578 | 6643 | -11.9 | -43.7 | 3.2 | 45.4 | L20 | | 0008+424 | 2 | DA6.8 | 2.843 | 42.678 | 22.00 | sp | 0.2328 | 7380 | -10.0 | -1.9 | -17.4 | 20.2 | L20 | | 0009+501 | 3 | DAH7.6 | 3.061 | 50.422 | 11.03 | p | 0.7150 | 6502 | -28.1 | 8.6 | -24.1 | 38.0 | L20 | | 0011-134 | 4 | DAH8.4 | 3.553 | -13.183 | 19.49 | p | 0.8990 | 5992 | -75.5 | -31.1 | -9.8 | 82.3 | L20 | | 0011-721 | 5 | DA7.8 | 3.457 | -71.831 | NULL | sp | 0.3260 | 6325 | 10.3 | -23.2 | 12.2 | 28.2 | GBD | | 0029-031 | 6 | DA11.3 | 8.041 | -2.900 | 23.47 | p | 0.6505 | 4470 | 68.3 | -23.0 | 2.6 | 72.1 | Pi | |
我尝试完全加入:
。
但它回来了:
1 |
我怎样才能做到这一点?谢谢
正确的等效值为:
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号
第一个子查询生成两个表中的名称列表。
MySQL不支持完全外部连接
但你可以这样做。
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