數據庫 字段拼接，去除null值

原創 shijie_nihao 2020-06-22 05:24

1、MySql數據庫

SELECT CONCAT_WS(分割符,列1,列2,列3...) AS 新列名  FROM 表名

2、SqlServer數據庫

SELECT 
STUFF(
    COALESCE(',' + 列名, '') +
    COALESCE(',' + 列名, '') +
    COALESCE(',' + 列名, '') +
    COALESCE(',' + 列名, ''),
1, 1, '') AS 新列名

 

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