MySql multiple fields are combined into one field

Others 2022-05-18 00:31:33 views: 0

CONCAT(IFNULL(t1.CITYNAME,''),IFNULL(t1.AREANAME,''),IFNULL(t1.STREETNAME,''),IFNULL(t1.ADDRESS,''))addressDetail

Because the mysql concat function will return null if one of the fields appears null
, so this needs to use the ifnull function.

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