2019-04-04
2019-04-04 本文已影响0人
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SELECT * FROM amap_citys ;
ALTER TABLE amap_citys ADD INDEX index_name ( pId )
ALTER TABLE amap_citys ADD INDEX index_nam2 ( randomCode )
ALTER TABLE amap_citys ADD INDEX index_nam3 ( parentRandomCode )
UPDATE amap_citys as a INNER JOIN amap_citys as b ON a.parentRandomCode=b.randomCode set a.pId=b.id
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